As filed with the Securities and Exchange Commission on August 8, 2008
===============================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

(Mark One)

|X|  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

        For the quarterly period ended June 30, 2008

                                       OR

|_|  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

        For the transition period from _____________ to ______________


                           Commission File No. 0-19341

                            BOK FINANCIAL CORPORATION
             (Exact name of registrant as specified in its charter)


              Oklahoma                                       73-1373454
    (State or other jurisdiction                           (IRS Employer
 of Incorporation or Organization)                      Identification No.)

         Bank of Oklahoma Tower
             P.O. Box 2300
            Tulsa, Oklahoma                                    74192
(Address of Principal Executive Offices)                     (Zip Code)

                                 (918) 588-6000
              (Registrant's telephone number, including area code)

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes |X| No |_| ?

     Indicate by check mark whether the registrant is a large accelerated filer,
an accelerated filer, or a non-accelerated filer. See definition of "accelerated
filer and large  accelerated  filer" in Rule 12b-2 of the Exchange  Act.  (Check
one):

Large accelerated filer |X|   Accelerated filer |_|   Non-accelerated filer |_|

     Indicate  by check mark  whether  the  registrant  is a shell  company  (as
defined in Rule 12b-2 of the Act). Yes |_| No |X|

     Indicate the number of shares  outstanding of each of the issuer's  classes
of common stock, as of the latest practicable date:  67,415,581 shares of common
stock ($.00006 par value) as of July 31, 2008.

===============================================================================

 2

                            BOK Financial Corporation
                                    Form 10-Q
                           Quarter Ended June 30, 2008

                                      Index

Part I.  Financial Information
     Management's Discussion and Analysis (Item 2)                           2
     Market Risk (Item 3)                                                   32
     Controls and Procedures (Item 4)                                       34
     Consolidated Financial Statements - Unaudited (Item 1)                 35
     Six Month Financial Summary - Unaudited (Item 2)                       48
     Quarterly Financial Summary - Unaudited (Item 2)                       49

Part II.  Other Information
     Item 1.  Legal Proceedings                                             51
     Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds   51
     Item 4.  Submission of Matters to a Vote of Security Holders           52
     Item 6.  Exhibits                                                      52

Signatures                                                                  53

Management's Discussion and Analysis of Financial Condition and Results of
Operations

Performance Summary

BOK  Financial  Corporation  reported  a net loss of $1.2  million  or $0.02 per
diluted share for the second  quarter of 2008.  Net income totaled $53.9 million
or $0.80 per diluted  share for the second  quarter of 2007 and $62.3 million or
$0.92 per diluted  share for the first  quarter of 2008.  Net income for the six
months ended June 30, 2008 totaled $61.1 million or $0.90 per diluted share. Net
income for the six months  ended June 30, 2007 totaled  $106.7  million or $1.58
per diluted share.  The Company  recognized $87.0 million of pre-tax charges for
loan and energy  derivative credit exposure to SemGroup LP in the second quarter
of 2008.  These  charges  reduced net income by  approximately  $57.0 million or
$0.84 per diluted share.

Highlights of the second quarter of 2008 included:

o    Net interest  margin was 3.44% for the second  quarter of 2008, up 13 basis
     points  from both the  second  quarter  of 2007 and the first of 2008.  Net
     interest revenue increased 18% over the second quarter of 2007.

o    Average  outstanding  loans  increased 10% over the second quarter of 2007.
     Period-end  annualized  loan  growth rate was 8% since the end of the first
     quarter of 2008.

o    Non-performing  assets totaled $181 million or 1.45% of  outstanding  loans
     and  repossessed  assets at June 30, 2008, up from $126 million or 1.02% of
     outstanding loans and repossessed  assets at March 31, 2008 and $70 million
     or 0.60% of outstanding loans at June 30, 2007.

o    Net loans  charged off and  provision  for credit losses were $39.0 million
     and $59.3 million,  respectively, for the second quarter of 2008, including
     a $26.0 million charge off and a $26.3 million provision for SemGroup.  Net
     loans  charged off and  provision  for credit  losses were $8.9 million and
     $17.6  million,  respectively  for the  first  quarter  of 2008.  Net loans
     charged off and  provision  for credit  losses  were $5.8  million and $7.8
     million, respectively for the second quarter of 2007.

o    Fees and  commissions  revenue totaled $63.6 million for the second quarter
     of 2008,  compared  with $97.0  million for the second  quarter of 2007 and
     $113.9  million  for the  first  quarter  of 2008.  Brokerage  and  trading
     revenue,  which is a component of fees and commissions revenue, was reduced
     by a $60.7  million  charge to adjust the fair  value of energy  derivative
     contracts  with  SemGroup to their  estimated  fair value.

o    Net losses on  securities,  derivatives  used by the  Company to manage its
     interest rate risk and mortgage  servicing  rights totaled $9.0 million for
     the second  quarter of 2008,  compared  with net losses of $1.4 million for
     the second  quarter of 2007 and net gains on  securities,  derivatives  and
     mortgage servicing rights of $5.0 million for the first quarter of 2008.

 3

o    No other than temporary impairment charges against the Company's securities
     portfolio  were  recognized  in the second  quarter of 2008,  compared with
     charges of $5.3  million in the first  quarter of 2008.  The Company has no
     equity investments in FNMA or FHLMC.


Credit Exposure to SemGroup, LP and Related Entities

At June 30, 2008,  BOK Financial had credit  exposure to SemGroup LP and related
entities of  approximately  $147 million  consisting  of $97 million from energy
derivative  contracts  and $50  million  from  loans and loan  commitments.  BOK
Financial is a participant in an approximately  $2.4 billion working capital and
term facility to SemGroup;  another  commercial bank is the lead lender for this
facility.  The  working  capital  and term  facility  is secured  by  SemGroup's
inventory and accounts  receivable.  All of BOK  Financial's  energy  derivative
contracts  and $46 million of the loans and loan  commitments  to  SemGroup  are
secured by the working capital facility collateral.  The $34 million outstanding
balance of the working  capital  loan was  reduced by a $26 million  charge off.
Included under the working  capital and term facility are $11 million of letters
of credit. BOK Financial also has a $4 million participation interest in an $806
million loan secured by SemGroup's fixed and other assets.

On July 22,  2008,  SemGroup  LP and 24 related  entities  filed for  bankruptcy
protection.  BOK  Financial  assessed  a range  of  values  for  SemGroup  using
information currently available,  including information provided by a nationally
recognized financial advisor to SemGroup.  The range considers both the value of
SemGroup as a  reorganized  entity  (going  concern  value) and its  liquidation
value. Based on the lower end of the range of values, BOK Financial recognized a
$26.3  million  charge to  increase  its  provision  for loan losses and a $60.7
million  charge  against  trading  revenue to reduce the estimated fair value of
energy derivative contracts.

The Company's net remaining credit exposure to SemGroup at June 30, 2008 totaled
approximately  $60  million,   including  $37  million  from  energy  derivative
contracts  and $23  million of loans and loan  commitments.  Non-accruing  loans
include $12 million from SemGroup.  This amount will increase if the amounts due
under the energy derivative  contracts,  primarily in the third quarter of 2008,
are not paid on their contractual settlement dates.  Non-accruing loans may also
increase  if funding  is  required  of all or some of $11  million of letters of
credit. Mr. Thomas S. Kivisto,  President and CEO of SemGroup,  LP resigned from
the Board of Directors of BOK Financial  and Bank of Oklahoma,  N.A. on July 16,
2008. The Company has no direct credit exposure to Mr. Kivisto.


Results of Operations

Net Interest Revenue and Net Interest Margin

Net interest  revenue  totaled $158.9 million for the second quarter of 2008, up
$24.0 million or 18% over the second  quarter of 2007 and $11.8 million over the
first quarter of 2008. Average earning assets increased $2.1 billion or 13% over
the  second  quarter  of 2007,  including  a $1.2  billion  increase  in average
outstanding loans and a $917 million increase in average  securities.  Growth in
the  securities  portfolio  generally  consisted  of  highly-rated,   fixed-rate
mortgage-backed securities. These securities were purchased to take advantage of
widened  spreads  caused  by  short-term   disruptions  in  the  mortgage-backed
securities markets.

Growth in average  earning assets was funded  primarily by a $1.9 billion or 48%
increase  in average  federal  funds  purchased  and other  borrowed  funds.  In
addition, average deposits were up $915 million or 7% over the second quarter of
2007. Average interest-bearing transaction accounts grew $1.3 billion or 20% and
average time  deposits  decreased  $431 million or 10% compared  with the second
quarter of 2007. Average demand deposits increased $41 million or 3%.

Funds  generated by growth in deposits and  borrowings  were also used to fund a
$667 million increase in average margin assets.  Margin assets are placed by the
Company to secure its obligations  under various  derivative  contracts.  Margin
assets are generally reported as a reduction of the derivative liabilities which
they secure on the Company's  consolidated  balance sheet. Fees earned on margin
assets are included in fees and commissions revenue.

Net interest margin was 3.44% for the second quarter of 2008 compared with 3.31%
for both the second  quarter of 2007 and the first quarter of 2008.  Widening of
the spread  between  LIBOR and the federal  funds rate  increased  net  interest
margin. LIBOR is the basis for interest earned on many of our loans. The federal
funds  rate is the  basis  for  interest  paid  on many of our  interest-bearing
liabilities.  Yields on average  earning  assets  decreased  139 basis points to
5.61% and the cost of interest-bearing liabilities decreased 183 basis points to
2.29% compared with the second quarter of 2007. Loan yields  decreased 215 basis
points to 5.79% while securities  yields increased 24 basis points to 5.14%. Our
securities re-price as cash flow received is reinvested at current market rates.
The resulting change in yield on the securities portfolio

 4

occurs more slowly than changes in market  rates.  The cost of interest  bearing
deposits decreased 147 basis points to 2.22% and the cost of funds purchased and
other borrowings decreased 288 basis points. Competition for deposits in all our
markets  limited  our  ability  to move  deposit  rates down as  interest  rates
declined.  The benefit to the net interest  margin from earning assets funded by
non-interest  bearing  liabilities  was 12 basis points in the second quarter of
2008  compared  with 43 basis points in the second  quarter of 2007 and 25 basis
points in the preceding quarter.

Management  regularly  models the  effects of changes in  interest  rates on net
interest  revenue.  Based on this  modeling,  we expect net interest  revenue to
decrease slightly over a one-year forward looking period. However, other factors
such as loan spread compression,  deposit product mix, the overall balance sheet
composition  and the  previously  noted widening of the spread between LIBOR and
the federal funds rate may affect this general expectation.

Our overall  objective is to manage the Company's balance sheet to be relatively
neutral to changes in interest  rates.  Approximately  67% of our commercial and
commercial  real estate loan  portfolios are either  variable rate or fixed rate
that will re-price within one year.  These loans are funded primarily by deposit
accounts that are either non-interest bearing, or that re-price more slowly than
the loans.  The result is a balance sheet that would be asset  sensitive,  which
means that assets generally  re-price more quickly than  liabilities.  Among the
strategies  that  we use to  achieve  a  relatively  rate-neutral  position,  we
purchase fixed-rate,  mortgage-backed securities to offset the short-term nature
of the majority of the Company's funding sources. The liability-sensitive nature
of this strategy provides an offset to the  asset-sensitive  characteristics  of
our loan  portfolio.  We also use derivative  instruments to manage our interest
rate risk.  Interest rate swaps with a combined  notional amount of $410 million
convert fixed rate  liabilities to floating rate based on LIBOR.  The purpose of
these  derivatives is to position our balance sheet to be relatively  neutral to
changes in interest rates.

The  effectiveness of these strategies is reflected in the overall change in net
interest revenue due to changes in interest rates as shown in Table 1 and in the
interest  rate  sensitivity  projections  as shown in the Market Risk section of
this report.



---------------------------------------------------------------------------------------------------------------------
Table 1 - Volume / Rate Analysis
(In thousands)

                                                   Three Months Ended                    Six Months Ended
                                                  June 30, 2008 / 2007                 June 30, 2008 / 2007
                                           --------------------------------------------------------------------------
                                                         Change Due To (1)                      Change Due To (1)
                                           --------------------------------------------------------------------------
                                                                     Yield /                                 Yield
                                              Change     Volume       Rate          Change      Volume       /Rate
                                           --------------------------------------------------------------------------
Tax-equivalent interest revenue:
                                                                                      
  Securities                                $  15,267 $  11,689   $   3,578     $   29,114  $   21,977  $    7,137
  Trading securities                              786       652         134          1,700       1,477         223
  Loans                                       (44,068)   20,107     (64,175)       (57,470)     44,323    (101,793)
  Funds sold and resell agreements               (569)       50        (619)          (394)        318        (712)
---------------------------------------------------------------------------------------------------------------------
Total                                         (28,584)   32,498     (61,082)       (27,050)     68,095     (95,145)
---------------------------------------------------------------------------------------------------------------------
Interest expense:
  Transaction deposits                        (20,487)    7,216     (27,703)       (24,679)     16,430     (41,109)
  Savings deposits                               (229)        2        (231)          (355)         28        (383)
  Time deposits                               (15,229)   (4,632)    (10,597)       (20,636)     (6,590)    (14,046)
  Federal funds purchased and repurchase
   agreements                                 (17,949)    4,339     (22,288)       (27,865)      8,588     (36,453)
  Other borrowings                              2,272    13,840     (11,568)         4,892      21,507     (16,615)
  Subordinated debentures                      (1,003)     (205)       (798)          (807)      1,382      (2,189)
---------------------------------------------------------------------------------------------------------------------
Total                                         (52,625)   20,560     (73,185)       (69,450)     41,345    (110,795)
---------------------------------------------------------------------------------------------------------------------
  Tax-equivalent net interest revenue          24,041    11,938      12,103         42,400      26,750      15,650

Change in tax-equivalent adjustment               (15)                                 (84)
---------------------------------------------------------------------------------------------------------------------
Net interest revenue                       $   24,026                            $  42,316
---------------------------------------------------------------------------------------------------------------------
(1) Changes attributable to both volume and yield/rate are allocated to both
volume and yield/rate on an equal basis.




Other Operating Revenue

Other operating revenue decreased $34.6 million compared with the second quarter
of last year. Fees and commission revenue decreased $33.4 million.  The decrease
in fees and  commission  revenue  included a $60.7 million  charge to write down
SemGroup  derivative  contracts to estimated fair value,  partially  offset by a
$27.3 million increase in all other fees and commissions  revenue  sources.  Net
losses on securities and derivatives  used by the Company to manage its interest
rate risk during the second quarter of 2008 totaled $8.2 million,  compared with
net losses on securities and  derivatives of $6.4 million for the second quarter
of 2007.  Other operating  revenue was down $64.9 million from the first quarter
of 2008. Fees and commissions  revenue  decreased $50.3 million due primarily to
the write down of SemGroup  derivative  contracts.  Net gains on securities  and
derivatives  used by the Company to manage its  interest  rate risk totaled $6.7
million for the first  quarter of 2008 due  primarily  to Visa,  Inc.'s  initial
public offering.

Diversified  sources of fees and commissions  revenue are a significant  part of
our business  strategy and generally  represent 40% to 45% of our total revenue,
excluding  gains and  losses on asset  sales,  securities  and  derivatives.  We
believe  that a variety of fee revenue  sources  provide an offset to changes in
interest  rates,  values in the equity  markets,  commodity  prices and consumer
spending, all of which can be volatile.

Fees and commissions revenue

Brokerage and trading activities resulted in a net loss of $35.5 million for the
second  quarter of 2008 due to the $60.7  million  charge to write down SemGroup
derivative  contracts  to fair value.  Excluding  this  charge and revenue  from
transactions  with  SemGroup  that may not be  recurring,  brokerage and trading
revenue  totaled $23.3 million for the second  quarter of 2008, up $10.6 million
or 84% over the second quarter of 2007.  Revenue from trading and  institutional
securities  sales totaled  $11.6 million in the second  quarter of 2008 compared
with $5.4 million in the second quarter of 2007.  Revenue from retail  brokerage
activities  totaled $6.2 million for the second quarter of 2008 and $4.5 million
for the  second  quarter  of  2007.  Customer  hedging  revenue,  excluding  the
write-down of derivative  contracts and revenue from transactions with SemGroup,
totaled  $4.0  million for the second  quarter of 2008 and $2.1  million for the
second quarter of 2007.

Brokerage and trading  revenue,  excluding  the charge to write down  derivative
contracts to fair value and revenue from transactions  with SemGroup,  increased
$469 thousand or 8% annualized  compared with the first quarter of 2008. Revenue
from  trading  and  institutional  securities  sales were down $1.2  million and
revenue from retail  brokerage  activities  were up $857 thousand from the first
quarter  of 2008.  Customer  hedging  revenue  was up $106  thousand,  excluding
revenue from SemGroup transactions.  In addition, investment banking revenue for
the second quarter of 2008 totaled $1.4 million, up $752 thousand over the first
quarter of 2008.

Transaction  card revenue  increased $2.9 million or 13% over the second quarter
of 2007.  ATM network  revenue  increased  $1.3  million or 13% while check card
revenue  increased  $1.2  million or 20% over the second  quarter of 2007 due to
volume growth.  Merchant discount fees increased $296 thousand,  or 4%, over the
second quarter of 2007.  Transaction card revenue for the second quarter of 2008
was up $2.2  million  over the first  quarter of 2008 due  largely  to  seasonal
changes.  ATM network fees  increased  $948 thousand and merchant  discount fees
increased  $602 thousand due to transaction  volumes.  Check card revenue was up
$661 thousand over the previous quarter.

Trust fees and  commissions  increased $1.5 million or 8% for the second quarter
of  2008.  The  fair  value  of all  trust  assets,  which  is the  basis  for a
significant  portion of trust  revenue,  totaled  $34.4 billion at June 30, 2008
compared with $33.7 billion at June 30, 2007. Net fees from mutual fund advisory
and  administrative  services,  which  provide  21%  of  total  trust  fees  and
commissions increased $188 thousand or 4%. Personal trust management fees, which
provide 33% of total trust fees and commissions  increased $863 thousand or 14%.
Employee  benefit plan management  fees,  which provide 19% of total trust fees,
increased  $359  thousand  or 10%.  Trust fees and  commissions  increased  $144
thousand or 3% annualized  over the first quarter of 2008. The fair value of all
trust assets  totaled  $35.5  billion at March 31, 2008 or 3% more than the fair
value of all trust relationships at June 30, 2008.

Deposit service charges and fees totaled $30.2 million for the second quarter of
2008, up $3.4 million or 13% over the second quarter of 2007. Commercial deposit
account  fees were up $2.6  million or 38% over the same period of 2007 due to a
decrease in earnings  credit  available to commercial  deposit  customers and an
increase in service charges to partially offset higher deposit  insurance costs.
The earnings credit,  which provides a non-cash method for commercial  customers
to avoid incurring charges for deposit  services,  decreases when interest rates
fall.  Overdraft  fees grew  $840  thousand  or 5%.  Service  charges  on retail
accounts  decreased  $53  thousand  or 4% due  to  service-charge  free  deposit
products. Deposit service charges increased $2.5 million compared with the first
quarter  of  2008.  Overdraft  fees  were up $1.5  million.  Overdraft  fees are
generally  lower in the  first  quarter  of each year due to  seasonal  factors.
Commercial deposit account fees were up $1.0 million.

 6

Mortgage  banking  revenue  was up  $3.2  million  or 78%  compared  with  2007.
Servicing  revenue totaled $4.3 million for both the second quarters of 2008 and
2007.  The  outstanding  principal  balance of mortgage loans serviced for other
totaled $5.0  billion at June 30, 2008 and $4.8  billion at June 30,  2007.  Net
gains on mortgage  loans sold  totaled  $2.9  million,  up $3.2 million over the
second quarter of 2007.  Mortgage loans originated  totaled $362 million for the
second quarter of 2008, up 15% over the same period in 2007.

Margin asset fees  totaled  $4.5 million in the second  quarter of 2008 and $969
thousand in the second  quarter of 2007.  Margin assets which are held primarily
as part of the Company's customer derivatives programs averaged $762 million for
the second quarter of 2008,  compared with $96 million for the second quarter of
2007. The increase in revenue earned on margin assets is offset by a decrease in
net interest revenue due to the costs to fund the margin assets.

Securities and derivatives

Net gains and losses on securities consisted of the following:

                                                   Three Months Ended
                                          June 30       March 31    June 30
                                            2008          2008       2007
                                            ----          ----       ----
Gain (loss) on portfolio securities        $   276      $2,947     $(  580)
Gain on Visa, Inc. IPO securities                -       6,788           -
Other than temporary impairment of
  equity securities                              -      (5,306)          -
Gain (loss) on mortgage hedge securities    (5,518)        191      (5,682)
                                             -----       ------      -----
Net gain (loss) on securities              $(5,242)      $4,620    $(6,262)
                                             =====        =====      =====


BOK Financial recognized net losses of $5.2 million on securities for the second
quarter of 2008, net losses on securities of $6.3 million for the second quarter
of 2007 and net gains on  securities  of $4.6  million for the first  quarter of
2008. Mortgage hedge securities held as an economic hedge of the changes in fair
value of mortgage  servicing  rights are carried at fair value.  Changes in fair
value of these  securities are recognized in earnings as they occur.  During the
first   quarter  of  2008,   the  Company   recorded  a  $5.3  million   pre-tax
other-than-temporary-impairment  charge to recognize  the decrease in fair value
of its holdings of variable-rate perpetual preferred stock issued by seven major
banks and brokerage houses. The Company also recognized a $6.8 million gain from
the partial  redemption of Visa,  Inc.  Class B shares as part of Visa's initial
public offering.  The Company sold certain  available for sale securities during
the first  quarter of 2008 at a $2.9 million gain to reduce  prepayment  risk in
response to falling interest rates.

Net losses on  derivatives  totaled $3.0 million for the second  quarter of 2008
and $183  thousand  for the  second  quarter  of 2007.  Net  gains or  losses on
derivatives  consist of fair value adjustments of all derivatives used to manage
interest  rate  risk  and  the  related  hedged  assets  and  liabilities   when
adjustments  are  permitted  by  generally   accepted   accounting   principles.
Derivative  instruments  generally  consist of  interest  rate  swaps  where the
Company  pays a variable  rate based on LIBOR and  receives a fixed rate.  These
swaps  generally  decrease in value as interest rates rise and increase in value
as interest rates fall.

The Company adopted  Statement of Financial  Accounting  Standards No. 159, Fair
Value Option ("FAS 159")  effective  January 1, 2008. FAS 159 provides an option
to measure eligible  financial  assets and financial  liabilities at fair value.
Certain  certificates of deposit that were either currently designated as hedged
or had previously been  designated as hedged,  but no longer met the correlation
requirements  of  Statement  of  Financial  Accounting  Standards  No.  133 were
designated as being  reported at fair value when FAS 159 was first  adopted.  In
addition,  certain  certificates of deposit issued subsequent to the adoption of
FAS 159 have been designated as reported at fair value.  This  determination  is
made when the  certificates of deposit are issued based on the Company's  intent
to swap the interest rate on the certificates from a fixed rate to a LIBOR-based
variable rate.

 7


--------------------------------------------------------------------------------------------------------------------------
Table 2 - Other Operating Revenue
(In thousands)
                                                                         Three Months Ended
                                           -------------------------------------------------------------------------------
                                               June 30,       March 31,         Dec. 31,       Sept. 30,        June 30,
                                                 2008           2008             2007            2007             2007
                                           -------------------------------------------------------------------------------
                                                                                              
Brokerage and trading revenue               $  (35,462)    $   23,913       $   20,402      $   15,541       $   13,317
Transaction card revenue                        25,786         23,558           23,512          23,812           22,917
Trust fees and commissions                      20,940         20,796           20,145          19,633           19,458
Deposit service charges and fees                30,199         27,686           29,938          27,885           26,797
Mortgage banking revenue                         7,198          7,217            6,912           5,809            4,034
Bank-owned life insurance                        2,658          2,512            2,614           2,520            2,525
Margin asset fees                                4,460          1,967            2,012           1,061              969
Other revenue                                    7,824          6,215            7,819           7,456            6,947
--------------------------------------------------------------------------------------------------------------------------
  Total fees and commissions                    63,603        113,864          113,354         103,717           96,964
--------------------------------------------------------------------------------------------------------------------------
Gain (loss) on sales of assets                     216            (35)          (1,316)             42             (348)
Gain (loss) on securities, net                  (5,242)         4,620           (6,251)          4,748           (6,262)
Gain (loss) on derivatives, net                 (2,961)         2,113            1,529             865             (183)
--------------------------------------------------------------------------------------------------------------------------
  Total other operating revenue             $   55,616     $  120,562       $  107,316      $  109,372       $   90,171
--------------------------------------------------------------------------------------------------------------------------



Other Operating Expense

Other  operating  expense for the second quarter of 2008 totaled $159.3 million,
up $25.1  million  or 19% over the second  quarter of 2007.  Changes in the fair
value of mortgage  servicing  rights  increased  other  operating  expense  $5.8
million.  Personnel costs increased $9.5 million or 12% due largely to incentive
compensation costs. Non-personnel expenses,  excluding changes in the fair value
of  mortgage  servicing  rights,  increased  $9.8  million or 17% due largely to
higher deposit insurance costs and losses on mortgage loans sold with recourse.

Personnel expense

Personnel expense totaled $89.6 million for the second quarter of 2008 and $80.1
million for the second quarter of 2007. Regular compensation,  which consists of
salaries and wages,  overtime pay and  temporary  personnel  cost totaled  $54.0
million,  up $2.2 million or 4% over the second quarter of 2007. The increase in
regular compensation expense was due primarily to an increase in average regular
compensation per full time equivalent employee.  Average staffing levels were up
1% over the second quarter of last year.



----------------------------------------------------------------------------------------------------------------------
Table 3 - Personnel Expense
(Dollars in thousands)
                                                                   Three Months Ended
                                   ----------------------------------------------------------------------------------
                                       June 30,        March 31,       Dec. 31,         Sept. 30,         June 30,
                                        2008             2008           2007              2007             2007
                                   ----------------------------------------------------------------------------------
                                                                                      
Regular compensation               $    54,024     $    52,576     $    52,316      $    53,592      $    51,821
Incentive compensation:
     Cash-based                         19,503          19,287          19,568           15,559           12,485
     Stock-based                         2,760           2,272           1,794            2,345            3,097
---------------------------------------------------------------------------------------------------------------------
Total incentive compensation            22,263          21,559          21,362           17,904           15,582
Employee benefits                       13,310          13,971          10,834           11,816           12,651
Workforce reduction costs, net               -               -               -            2,499                -
---------------------------------------------------------------------------------------------------------------------
  Total personnel expense          $    89,597     $    88,106     $    84,512      $    85,811      $    80,054
---------------------------------------------------------------------------------------------------------------------
Number of employees
  (full-time equivalent)                 4,137           4,135           4,110            4,299            4,093
---------------------------------------------------------------------------------------------------------------------


Incentive compensation  increased $6.7 million or 43% to $22.3 million.  Expense
for cash-based incentive compensation plans increased $7.0 million or 56%. These
plans are either  intended to provide  current rewards to employees who generate
long-term  business  opportunities  to the  Company  based on  growth  in loans,
deposits,  customer  relationships  and other measurable  metrics or intended to
compensate employees with commissions on completed transactions. The increase in
cash-based  incentive  compensation  over the second  quarter of 2007 included a
$3.7 million increase in commissions related to brokerage and trading revenue.

 8

The Company also provides stock-based incentive compensation plans.  Stock-based
compensation  plans  include  both  equity and  liability  awards.  Compensation
expense related to liability  awards  decreased $262 thousand  compared with the
second quarter of 2007. This decrease  reflected  changes in the market value of
BOK  Financial  common  stock.  The market value of BOK  Financial  common stock
increased  $1.22 per share in the second quarter of 2008 and increased $3.89 per
share in the second  quarter of 2007.  Compensation  expense  for equity  awards
decreased $75 thousand or 5% compared with the second  quarter of 2007.  Expense
for  equity  awards is based on the  grant-date  fair value of the awards and is
unaffected by subsequent changes in fair value.

Employee  benefit expense totaled $13.3 million,  a $659 thousand or 5% increase
over 2007.  Medical  insurance  costs were down $378 thousand or 9%. The Company
self-insures a portion of its employee health care coverage.

Data processing and communications expense

Data  processing  and  communications  expense  totaled $19.5  million,  up $1.1
million or 6% over the second  quarter of 2007.  This  expense  consists  of two
broad categories,  data processing systems and transaction card processing. Data
processing  costs  increased  $674  thousand  or 6% due to growth in  processing
volumes  and  acquisitions  during  2007.   Transaction  card  processing  costs
increased $447 thousand or 6% due to growth in processing volume.

Other operating expenses

Occupancy and equipment expenses totaled $15.1 million for the second quarter of
2008, up $1.2 million or 9% over 2007. Growth in occupancy expense was due to 24
new  branch  locations  added in the past  year,  including  16 added  from bank
acquisitions during the second quarter of 2007. Insurance expense increased $1.9
million  compared  to the  second  quarter  of 2007 due to an  increase  in FDIC
insurance   premiums.   A  one-time   credit  granted  to  eligible   depository
institutions  by the  Federal  Deposit  Insurance  Reform  Act of 2005 to offset
deposit insurance premiums was largely used in 2007.

Mortgage  banking costs included a $3.4 million increase in provision for losses
on residential  mortgage loans sold with recourse.  The Company's  obligation to
repurchase these loans is more-fully  discussed in the Loan Commitments  section
of this report.


----------------------------------------------------------------------------------------------------------------------
Table 4 - Other Operating Expense
(In thousands)
                                                                   Three Months Ended
                                   ----------------------------------------------------------------------------------
                                       June 30,        March 31,       Dec. 31,         Sept. 30,         June 30,
                                        2008             2008           2007              2007             2007
                                   ----------------------------------------------------------------------------------
                                                                                      
Personnel                          $    89,597     $    88,106     $    84,512      $    85,811      $    80,054
Business promotion                       5,777           4,639           6,528            5,399            5,391
Professional fees and services           6,973           5,648           6,209            5,749            5,963
Net occupancy and equipment             15,100          15,061          15,466           14,752           13,860
Insurance                                2,626           3,710             843              759              693
Data processing & communications        19,523          18,893          19,086           18,271           18,402
Printing, postage and supplies           4,156           4,419           4,221            4,201            4,179
Net (gains) losses and operating
   expenses of repossessed assets         (229)            378             120              172              192
Amortization of intangible assets        1,885           1,925           2,382            2,397            1,443
Mortgage banking costs                   6,054           5,681           4,225            3,877            2,485
Change in fair value of mortgage
  servicing rights                         767           1,762           3,344            3,446           (5,061)
Visa retrospective responsibility
  obligation                                 -          (2,767)          2,767                -                -
Other expense                            7,039           5,949           8,024            6,184            6,530
---------------------------------------------------------------------------------------------------------------------
  Total other operating expense    $   159,268     $   153,404     $   157,727      $   151,018      $   134,131
---------------------------------------------------------------------------------------------------------------------


Income Taxes

Income tax benefit was $2.9  million or 71% of book  taxable loss for the second
quarter of 2008 compared  with $29.3  million or 35% of book taxable  income for
the second  quarter of 2007 and $34.4 million or 36% of book taxable  income for
the first quarter of 2008. The effective tax rate for the second quarter of 2008
includes adjustments to estimated income tax expense due to the loss incurred in
the second quarter.

 9

BOK  Financial  operates  in numerous  jurisdictions,  which  requires  judgment
regarding the allocation of income,  expense and earnings under various laws and
regulations of each of these taxing  jurisdictions.  Each jurisdiction may audit
our tax  returns  and  may  take  different  positions  with  respect  to  these
allocations.  The reserve for uncertain tax positions was largely unchanged from
December 31, 2007.


Lines of Business

BOK Financial  operates five  principal  lines of business:  Oklahoma  corporate
banking,  Oklahoma consumer banking,  mortgage banking,  wealth management,  and
regional  banking.  Mortgage  banking  activities  include loan  origination and
servicing across all markets served by the Company.  Wealth management  provides
brokerage  and  trading,  private  financial  services and  investment  advisory
services in all  markets.  It also  provides  fiduciary  services in all markets
except  Colorado.  Fiduciary  services  in  Colorado  are  included  in regional
banking.  Regional banking consists  primarily of corporate and consumer banking
activities in the respective local markets.

In addition to its lines of business, BOK Financial has a funds management unit.
The primary  purpose of this unit is to manage the Company's  overall  liquidity
needs and  interest  rate risk.  Each line of  business  borrows  funds from and
provides  funds  to the  funds  management  unit  as  needed  to  support  their
operations.  Operating results for Funds Management and Other include the effect
of interest rate risk positions and risk  management  activities,  the provision
for credit  losses,  tax-exempt  income and tax credits  and  certain  executive
compensation costs that are not attributed to the lines of business.

BOK Financial  allocates  resources and  evaluates  performance  of its lines of
business after allocation of funds, certain indirect expenses, taxes and capital
costs.  The  cost of  funds  borrowed  from  the  funds  management  unit by the
operating lines of business is transfer priced at rates that approximate  market
for funds with similar  duration.  Market is generally  based on the  applicable
LIBOR or interest rate swap rates,  adjusted for prepayment risk. This method of
transfer-pricing  funds that support  assets of the operating  lines of business
tends to insulate them from interest rate risk.

The value of funds  provided  by the  operating  lines of  business to the funds
management  unit is based on  applicable  Federal Home Loan Bank advance  rates.
Deposit accounts with indeterminate maturities,  such as demand deposit accounts
and  interest-bearing  transaction  accounts,  are  transfer-priced at a rolling
average based on expected duration of the accounts. The expected duration ranges
from 90 days for certain rate-sensitive deposits to five years.

Economic capital is assigned to the business units by a capital allocation model
that reflects management's  assessment of risk. This model assigns capital based
upon credit,  operating,  interest rate and market risk inherent in our business
lines and recognizes the diversification  benefits among the units. The level of
assigned  economic  capital is a combination  of the risk taken by each business
line, based on its actual exposures and calibrated to its own loss history where
possible.  Additional  capital  is  assigned  to the  regional  banking  line of
business based on our investment in those entities.  Return on economic  capital
excludes amortization of intangible assets.

 10


------------------------------------------------------ -------------------------------- --------------------------------
Table 5 - Net Income by Line of Business
(In thousands)                                           Three months ended June 30,       Six months ended June 30,
                                                             2008             2007            2008             2007
                                                       ---------------- --------------- ---------------- ---------------
                                                                                               
Regional banking                                         $ 22,532         $ 24,332        $ 41,780         $ 49,055
Oklahoma corporate banking                                (37,860)          19,039         (17,405)          37,060
Mortgage banking                                           (3,515)             122          (4,492)             168
Oklahoma consumer banking                                   7,635            9,079          16,882           18,540
Wealth management                                           9,554            6,672          19,895           14,048
------------------------------------------------------ ---------------- --------------- ---------------- ---------------
     Subtotal                                              (1,654)          59,244          56,660          118,871
Funds management and other                                    493           (5,381)          4,444          (12,215)
------------------------------------------------------ ---------------- --------------- ---------------- ---------------
     Total                                               $ (1,161)        $ 53,863        $ 61,104         $106,656
------------------------------------------------------ ---------------- --------------- ---------------- ---------------



Oklahoma Corporate Banking

The Oklahoma  Corporate  Banking Division  provides loan and lease financing and
treasury and cash  management  services to  businesses  throughout  Oklahoma and
certain  relationships in surrounding states. In addition to serving the banking
needs of small businesses, middle market and larger customers, this Division has
specialized groups that serve customers in the energy,  agriculture,  healthcare
and banking/finance industries, and includes the TransFund network. The Oklahoma
Corporate  Banking Division  incurred a net loss of $37.9 million for the second
quarter of 2008 due to its credit  exposure from one customer,  SemGroup,  which
declared  bankruptcy in mid July 2008. Losses on loans and derivative  contracts
with SemGroup reduced the Oklahoma  Corporate Banking  Division's net income for
the second quarter of 2008 by $53.0  million.  This Division  contributed  $19.0
million  to  consolidated  net  income in the  second  quarter of 2007 and $20.4
million  to  consolidated  net income in the first  quarter  of 2008.  Excluding
SemGroup losses,  the Oklahoma  Corporate Banking  Division's net income for the
second quarter of 2008 was $15.1 million.

Net interest  revenue  decreased $4.0 million or 10%.  Average  earnings  assets
attributed  to this  division  increased  $93  million  or 2% over  2007 to $4.7
billion.  Average loans  decreased  $33 million or 1% to $4.4  billion.  Average
commercial  loans  decreased  $152  million  or  6%.  The  decrease  in  average
commercial  loans was  partially  offset by a $70  million  increase  in average
consumer loans,  primarily indirect automobile loans, and a $50 million increase
in average real estate  loans.  Average funds  provided to the funds  management
unit by the Oklahoma Corporate Banking Division increased $122 million.  Average
deposits  attributed to the Oklahoma  Corporate Banking Division  increased $206
million or 10% due primarily to growth in treasury services  Eurodollar  deposit
products.

Operating  revenue  decreased  $57.6  million due  primarily to a $60.7  million
charge for the decrease in the fair value of derivative contracts with SemGroup.
Operating  revenue was up $3.1 million or 13% excluding  this charge.  Operating
revenue provided by TransFund  increased $1.4 million or 15% and service charges
on commercial deposit accounts were up $1.1 million or 21%. Operating  expenses,
which consist primarily of personnel and data processing  costs,  increased $2.8
million or 10%.

Net loans charged off by the Oklahoma  Corporate  Banking Division totaled $32.3
million in the second quarter of 2008, which included a $26.0 million charge off
of  SemGroup  loans.  Excluding  SemGroup,  net loans  charged off in the second
quarter  of 2008  totaled  $6.3  million or 0.54% of  average  loans.  Net loans
charged  off  totaled  $3.3  million  or 0.30% of  average  loans for the second
quarter of 2007 and $2.2 million or 0.18% of average loans for the first quarter
of 2008.

 11


Table 6 -  Oklahoma Corporate Banking
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     ------------- --- ------------- -- -------------- -- -------------
                                                                                           
NIR (expense) from external sources               $      49,464     $      62,907    $     101,875     $     122,679
NIR (expense) from internal sources                     (14,335)          (23,731)         (30,511)          (45,903)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                     35,129            39,176           71,364            76,776

Other operating revenue                                 (34,183)           23,454          (10,304)           44,454
Operating expense                                        30,980            28,156           60,132            55,911
Gains on financial instruments, net                           -                 -            4,689                 -
Net loans charged off                                    32,271             3,313           34,443             4,644
Net income (loss)                                       (37,860)           19,039          (17,405)           37,060

Average assets                                    $   6,135,980     $   5,785,263    $   6,118,107     $   5,748,197
Average economic capital                                461,840           405,160          434,280           413,010

Return on assets                                          (2.48)%            1.32%           (0.57)%           1.30%
Return on economic capital                               (32.97)%           18.85%           (8.06)%          18.10%
Efficiency ratio                                             NM             44.96%           98.48%           46.12%



Oklahoma Consumer Banking

The Oklahoma Consumer Banking Division provides a full line of deposit, loan and
fee-based  services  to  customers   throughout   Oklahoma  through  four  major
distribution channels:  traditional branches,  supermarket branches, the 24-hour
ExpressBank  call  center and the  Internet.  Additionally,  the  division  is a
significant  referral  source for the Bank of  Oklahoma  Mortgage  Division  and
BOSC's retail brokerage division.  Consumer banking services are offered through
35 locations in Tulsa, 32 locations in Oklahoma City and 16 locations throughout
the state.

The Oklahoma  Consumer Banking  Division  contributed net income of $7.6 million
for the second  quarter of 2008,  compared to net income of $9.1 million for the
second quarter of 2007. Net interest revenue  decreased $2.8 million or 15% over
2007 due primarily to deposit spread  compression.  Average loans  attributed to
the  Oklahoma  Consumer  Banking  Division in 2008  increased  $19 million or 7%
compared with 2007.  Average deposits  provided by the Oklahoma Consumer Banking
Division grew $136 million or 5% to $3.0 billion.  Average demand  deposits were
up $36  million or 10% over  2007.  Interest  bearing  deposits  increased  $100
million or 4%,  including a $229  million or 21%  increase  in interest  bearing
transaction  accounts and a $129 million or 9% decrease in time deposits.  Other
operating  revenue was up $1.5  million or 8% over 2007  largely from check card
revenue and overdraft fees. Operating expenses increased $1.5 million or 7% over
2007,  including a $546 thousand or 7% increase in personnel  expense and a $946
thousand or 7% increase in non-personnel  expense. Net loans charged-off,  which
consist primarily of overdrawn  deposit accounts,  totaled $402 thousand for the
second quarter of 2008 and $801 thousand for the second quarter of 2007.

 12


Table 7 -  Oklahoma Consumer Banking
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $     (11,537)    $     (16,740)   $     (26,395)    $     (33,891)
NIR (expense) from internal sources                      27,265            35,224           58,814            70,439
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                     15,728            18,484           32,419            36,548

Other operating revenue                                  20,876            19,329           39,942            37,208
Operating expense                                        23,699            22,207           45,361            42,382
Gains on financial instruments, net                           -                 -            1,576                 -
Net loans charged off                                       402               801              963             1,062
Net income                                                7,635             9,079           16,882            18,540

Average assets                                    $   3,036,095     $   2,905,822    $   3,013,375     $   2,917,365
Average economic capital                                 58,230            66,370           59,930            65,820

Return on assets                                           1.01%             1.25%            1.13%             1.28%
Return on economic capital                                52.74%            54.87%           56.65%            56.80%
Efficiency ratio                                          64.74%            58.73%           62.69%            57.46%



Mortgage Banking

BOK Financial  engages in mortgage banking  activities  through the BOk Mortgage
Division  of  Bank  of  Oklahoma.  These  activities  include  the  origination,
marketing and servicing of conventional and government-sponsored mortgage loans.
BOk Mortgage  incurred a net loss of $3.5 million in the second  quarter of 2008
compared to net income of $122 thousand in the second  quarter of 2007.  Changes
in the fair value of mortgage servicing rights, net of hedging activity, reduced
net income $3.8  million in 2008 and $379  thousand  in 2007.  In  addition,  an
increase in the provision for  off-balance  sheet credit risk on mortgage  loans
sold with  recourse  reduced  net income $2.1  million in the second  quarter of
2008.

Mortgage banking activities consisted primarily of two sectors,  loan production
and loan servicing.  The loan  production  sector  generally  performs best when
mortgage  rates  are  relatively  low and loan  origination  volumes  are  high.
Conversely,  the loan  servicing  sector  generally  performs best when mortgage
rates are relatively high and prepayments are low. The Mortgage Banking Division
also holds a permanent  portfolio of $447 million of residential  mortgage loans
which generated net income of $473 thousand in the second quarter of 2008.

Loan Production Sector

Pre-tax loss from loan production totaled $1.8 million for the second quarter of
2008  compared with pre-tax  income of $331  thousand for the second  quarter of
2007.  Loan  production  revenue totaled $3.9 million in second quarter of 2008,
including  $5.9 million of  capitalized  mortgage  servicing  rights,  partially
offset by net losses on mortgage loans sold.  Loan  production  revenue  totaled
$4.1 million in second quarter of 2007.  Capitalized  mortgage  servicing rights
totaled $3.6 million for the second  quarter of 2007.  The average  initial fair
value of servicing  rights on mortgage loans funded was 1.61% for 2008 and 1.46%
for 2007.  Mortgage  loans funded totaled $362 million in second quarter of 2008
and $315 million in the second quarter of 2007. Approximately 60% and 17% of the
loans  funded  during the second  quarter  of 2008 were in  Oklahoma  and Texas,
respectively. The pipeline of mortgage loan applications totaled $517 million at
June 30,  2008,  compared to $525  million at March 31, 2008 and $306 million at
June 30, 2007. Operating expenses,  excluding direct loan production costs which
are  recognized as part of the gain or loss on loans sold,  totaled $6.8 million
in 2008 and $3.9 million in 2007. The increase in operating  expenses was due to
a $3.4 million increase in provision for losses on loans sold with recourse.

Loan Servicing Sector

The loan  servicing  sector had a pre-tax  loss of $5.1  million  for the second
quarter of 2008  compared  with a pre-tax  loss of $552  thousand for the second
quarter of 2007. The increase in net loss from loan servicing  during the second
quarter  of  2008  was  due to  ineffectiveness  of  our  economic  hedging.  We
recognized a net pre-tax loss of $6.3 million in the second  quarter of 2008 and
a net  pre-tax  loss of $620  thousand  in 2007  from  changes  in the  value of
mortgage  servicing  rights and economic hedging  activities.  The fair value of
securities  designated as an economic  hedge  decreased  $5.5 million during the
second  quarter of 2008,  which was largely  expected based on changes in market
interest  rates for  mortgage-backed  securities.  However,  changes in mortgage
commitment rates, prepayment speed assumptions, discount

 13

rates and other  estimates  of future  activities  decreased  the fair  value of
mortgage  servicing rights recognized in earnings by $767 thousand in the second
quarter of 2008,  which was  unexpected.  Factors which caused the fair value of
our  servicing  rights to not  increase  as  expected  included  an  increase in
prepayment  speed of our servicing  rights  relative to national  averages and a
decrease in short-term  interest  rates relative to mortgage  commitment  rates.
During the second quarter of 2007,  economic hedge activity  produced net losses
of $5.7 million,  which largely offset that quarter's increase in the fair value
of servicing rights of $5.1 million.

Servicing revenue,  including revenue on loans serviced for affiliates,  totaled
$4.8  million in second  quarter of 2008  compared  to $4.4  million in the same
period of 2007. The average  outstanding  balance of loans  serviced,  including
loans  serviced for  affiliates,  was $5.7 billion  during the second quarter of
2008 compared to $5.2 billion  during 2007.  Servicing  revenue per  outstanding
loan  principal  was 34 basis  points in 2008  compared  with 34 basis points in
2007.  Servicing  costs totaled $1.8 million for the second  quarter of 2008 and
$2.0 million for the second  quarter of 2007. At June 30, 2008, the total number
of loans serviced by BOk Mortgage was 58,021.  Serviced loans delinquent 90 days
or more or in process of  foreclosure  totaled 620 or 1.07%;  366 of these loans
are in Oklahoma,  71 are in Arkansas,  51 are in Kansas / Missouri and 38 are in
Texas.

The fair value of mortgage  servicing  rights  decreased $3.4 million during the
second quarter of 2008 and $3.2 million during the second quarter of 2007 due to
actual runoff of the underlying loans serviced.  This reduction in fair value is
included in mortgage banking costs in the Consolidated Statement of Earnings.



Table 8 -  Mortgage Banking
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $      11,584     $       8,529    $      23,236     $      16,344
NIR (expense) from internal sources                      (8,406)           (7,591)         (17,527)          (14,543)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                      3,178               938            5,709             1,801

Capitalized mortgage servicing rights                     5,909             3,566           10,314             5,915
Other operating revenue                                   2,043             5,654            5,718            10,594
Operating expense                                        10,444             9,215           20,859            16,314
Change in fair value of mortgage servicing
   rights                                                   767            (5,061)           2,529            (3,897)
Losses on financial instruments, net                     (5,518)           (5,681)          (5,327)           (5,428)
Net loans charged off                                        81               122              306               191
Net income (loss)                                        (3,515)              122           (4,492)              168

Average assets                                    $     887,397     $     684,483    $     886,431     $     653,332
Average economic capital                                 32,250            23,890           28,820            25,090

Return on assets                                          (1.59)%            0.07%           (1.02)%            0.05%
Return on economic capital                               (43.84)%            2.05%          (31.34)%            1.35%
Efficiency ratio                                          93.84%            90.72%           95.94%            89.10%



BOK Financial  designated a portion of its  securities  portfolio as an economic
hedge  against the risk of changes in the fair value of its  mortgage  servicing
rights.  These securities,  which are identified as mortgage trading  securities
are carried at fair value.  Changes in fair value are  recognized in earnings as
they occur.  Additionally,  mortgage-related  derivative  contracts  may also be
designated  as an  economic  hedge  of the  risk of loss on  mortgage  servicing
rights.  Because  the fair  values of these  instruments  are  expected  to vary
inversely  to the fair  value of the  servicing  rights,  they are  expected  to
partially  offset risk. No special hedge  accounting  treatment is applicable to
either the mortgage servicing rights or the financial instruments  designated as
an economic hedge.

Our hedging strategy presents certain risks. A well-developed  market determines
the  fair  value  for  the  securities  and  derivatives,  however  there  is no
comparable market for mortgage servicing rights.  Therefore, the computed change
in value of the servicing  rights for a specified  change in interest  rates may
not correlate to the change in value of the securities.

 14

At June 30, 2008,  financial  instruments with a fair value of $98.3 million and
an unrealized loss of $1.9 million were held for the economic hedge program. The
interest rate  sensitivity of the mortgage  servicing rights and securities held
as a hedge is modeled over a range of +/- 50 basis points. At June 30, 2008, the
pre-tax results of this modeling on reported earnings were:


Table 9 - Interest Rate Sensitivity - Mortgage Servicing
(Dollars in Thousands)
                                          50 bp increase   50 bp decrease
Anticipated change in:
Fair value of mortgage servicing rights   $    2,560      $   (3,724)
Fair value of hedging instruments             (2,661)          2,671
                                        ----------------- ----------------
Net                                       $     (101)     $   (1,053)
                                        ----------------- ----------------


Table 9 shows the non-linear  effect of changes in mortgage  commitment rates on
the value of mortgage  servicing  rights.  A 50 basis point increase in rates is
expected to increase the fair value of our servicing rights $2.6 million while a
50 basis point decrease is expected to reduce the fair value $3.7 million.  This
considers that there is an upper limit to appreciation in the value of servicing
rights as rates  rise due to the  contractual  repayment  terms of the loans and
other factors. This is much less of a limit of the speed at which mortgage loans
may prepay in a declining rate environment.

Modeling  changes in the value of  mortgage  servicing  rights due to changes in
interest rates assumes stable  relationships  between mortgage  commitment rates
and discount rates used to determine the present value of future cash flows.  It
also assumes a stable  relationship  between the assumed loan prepayment  speeds
and actual  prepayments of our loans.  Changes in market conditions can increase
or decrease the discount  spread over  benchmark  rates expected by investors in
mortgage servicing rights and actual prepayments may increase or decrease due to
factors other than changes in interest rates. These factors and others may cause
changes  in the  value of our  mortgage  servicing  rights  to  differ  from our
expectations.

Wealth Management

BOK  Financial  provides a wide range of financial  services  through its wealth
management line of business, including trust and private financial services, and
brokerage and trading activities.  This line of business includes the activities
of BOSC,  Inc.,  a  registered  broker  / dealer  and  Cavanal  Hill  Investment
Management, Inc., an SEC-registered investment advisor. Cavanal Hill changed its
name from AXIA Investment  Management,  Inc. on June 20, 2008. Trust and private
financial  services includes sales of  institutional,  investment and retirement
products,  loans  and  other  services  to  affluent  individuals,   businesses,
not-for-profit  organizations,  and  governmental  agencies.  Trust services are
provided  primarily  to  clients  throughout  Oklahoma,  Texas  and New  Mexico.
Additionally,  trust services  include a nationally  competitive,  self-directed
401-(k)  program  and  administrative  and  advisory  services  to the  American
Performance family of mutual funds.  Brokerage and trading activities within the
wealth  management  line of business  consists of retail sales of mutual  funds,
securities,  and annuities,  institutional  sales of securities and derivatives,
bond  underwriting  and other  financial  advisory  services and  customer  risk
management programs.

Wealth  Management  contributed net income of $9.6 million in the second quarter
of 2008.  This  compared to net income of $6.7 million in the second  quarter of
2007.  Growth in net income was due primarily to increased  revenue from trading
and institutional securities sales.

Trust and private financial  services provided $3.8 million of net income in the
second quarter of 2008, down $1.8 million from the second quarter of 2007. Trust
fees and  commissions for the Wealth  Management line of business  totaled $18.1
million,  up $1.2  million or 7% increase  over last year.  At June 30, 2008 and
2007, the Wealth  Management  line of business was  responsible for trust assets
with aggregate  market values of $31.4 billion and $30.8 billion,  respectively,
under  various  fiduciary  arrangements.  The growth in trust  assets  reflected
increased  market value of assets managed in addition to new business  generated
during  the  year.  We have sole or joint  discretionary  authority  over  $11.9
billion of trust  assets at June 30,  2008  compared  to $11.4  billion of trust
assets at June 30, 2007.  The fair value of  non-managed  assets  decreased $414
million to $11.8 billion at June 30, 2008.  Assets held in  safekeeping  totaled
$7.7  billion  at June 30,  2008.  Operating  expenses  attributed  to trust and
private financial  services totaled $19.0 million for the second quarter of 2008
and $16.9 million for the second quarter of 2007. Personnel costs increased $1.1
million or 10% due  primarily  to staffing  increases  in the Arizona and Kansas
City  markets.  Non-personnel  costs  increased  $962  thousand  or  15%  due to
increased legal, data processing and safekeeping costs.

Brokerage  and trading  activities  provided  $5.8 million of net income in 2008
compared to $1.1 million in 2007.  Operating revenue increased $14.5 million due
to brokerage and trading revenue and fees earned on margin assets. Brokerage and
trading revenue increased $9.5 million due primarily to institutional securities
sales, customer derivative revenue and retail brokerage fees. In addition,  fees
on margin assets were up $3.2 million, largely offset by a decrease

 15

in net interest revenue for the cost to fund margin assets.  Operating expenses,
which consist  primarily of compensation  expense increased $4.0 million or 34%.
Incentive  compensation  expense which is directly related to revenue growth was
up $4.0 million.



Table 10 -  Wealth Management
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $       7,911     $       3,480    $      10,905     $       8,005
NIR (expense) from internal sources                      (4,170)            4,608             (335)            8,894
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                      3,741             8,088           10,570            16,899

Other operating revenue                                  47,527            31,957           91,408            62,490
Operating expense                                        34,816            28,746           68,211            56,004
Net loans charged off                                       807               393            1,199               407
Net income                                                9,554             6,672           19,895            14,048

Average assets                                    $   2,773,578     $   1,774,525    $   2,633,307     $   1,733,099
Average economic capital                                163,410           160,850          153,310           163,750

Return on assets                                           1.39%             1.51%            1.52%             1.63%
Return on economic capital                                23.52%            16.64%           26.10%            17.30%
Efficiency ratio                                          67.91%            71.78%           66.89%            70.54%




Regional Banking

Regional  banking  consists  primarily of the  commercial  and consumer  banking
services  provided  by Bank of Texas,  Bank of  Albuquerque,  Bank of  Arkansas,
Colorado State Bank and Trust,  Bank of Arizona and Bank of Kansas City in their
respective  markets.  It also includes  fiduciary  services provided by Colorado
State Bank and Trust.  Small businesses and  middle-market  corporations are the
regional banks' primary customer focus.  Regional banking contributed net income
of $22.5  million  during the second  quarter of 2008.  This  compares  with net
income of $24.3 million  during the second  quarter of 2007.  Net income for the
second  quarter of 2008 from  operations  in Texas and Colorado  decreased  $1.4
million and $1.0 million, respectively,  from the previous year. In addition net
income from our Arizona banking operations  decreased $628 thousand.  Net income
for the second quarter of 2008 from banking  operations in New Mexico and Kansas
City was up $860 thousand and $361 thousand,  respectively, over the same period
of 2007.

Decrease in net income provided by Texas  operations was due primarily to higher
operating costs and an increase in net loans  charged-off.  Net interest revenue
increased  $811 thousand or 2%. Average  earning assets  increased $572 million,
including a $505 million or 18% increase in average loans. Average loans totaled
$3.4  billion  for the second  quarter of 2008 and $2.8  billion  for the second
quarter of 2007.  Average corporate banking loans increased $72 million or 4% to
$1.9 billion.  Growth in the average  outstanding  balances of middle market and
indirect  automobile  loans was  partially  offset by  reductions in the average
outstanding  balances of energy loans.  Average  community banking loans totaled
$1.2  billion,  up $368  million  compared  with  the  second  quarter  of 2007.
Community  banking  loans were up in Dallas,  Houston  and Fort  Worth.  Average
consumer  loans  increased  $40 million or 62% over the second  quarter of 2007,
primarily in the Fort Worth market.  Average  deposits  totaled $3.1 billion for
the second  quarter  of 2008 and $2.8  billion  for the second  quarter of 2007.
Average  corporate  banking  deposits  were  down  $187  million  or 14% to $615
million.  Average  community  banking  deposits  increased  $265 million to $1.3
billion,  primarily in the Fort Worth market.  Average consumer banking deposits
totaled  $1.1  billion for the second  quarter of 2008,  up $168 million or 18%.
Consumer  deposit growth was also primarily in the Fort Worth market.  Growth in
average  loans and deposits in the Fort Worth  market  includes  Worth  National
Bank, which was acquired on May 31, 2007.

Other operating  revenue in the Texas market  increased $1.6 million or 23% over
2007 due  primarily  to a $1.0  million  increase  in  deposit  fees.  Operating
expenses were up $3.1 million or 13%, including a $1.0 million or 8% increase in
personnel costs and a $2.1 million increase in non-personnel  expense. Net loans
charged  off  totaled  $987  thousand  or 0.12% of average  loans for the second
quarter of 2008 compared with a $609 thousand net recovery in 2007.

Net  income  decreased  at our  Colorado  operations  $1.0  million  or 25%  due
primarily to increased  operating  expenses.  Other operating  revenue increased
$838 thousand or 27% due  primarily to growth in trust fees and deposit  service
charges.  Trust fees and commissions totaled $2.8 million for the second quarter
of 2008,  up $248 thousand  over the second  quarter of 2007.  The fair value of
trust assets  overseen by Colorado State Bank and Trust was $3.0 billion at June
30, 2008 up 4% from June 30, 2007.  Deposit  fees totaled $593  thousand for the
second quarter of 2008 and $296

 16

thousand  for the  second  quarter  of  2007.  Operating  expenses  in  Colorado
increased  $2.5 million or 35% over the second  quarter of last year.  Personnel
expenses were up $781 thousand and non-personnel operating expenses were up $1.7
million.  Growth in operating  expenses  included  additional  expenses from the
First United  acquisition  late in the second quarter of 2007,  including a $254
thousand increase in intangible asset amortization.

Average  earning  assets  attributed to our Colorado  operations  increased $186
million  or  13% to  $1.7  billion.  Securities  and  funds  sold  to the  funds
management  unit  increased $69 million.  Average loans totaled $811 million for
the second  quarter of 2008,  up $118 million or 17% over 2007.  Average  energy
loans in the  Colorado  market  increased  $29 million or 11%.  Commercial  real
estate loans were up $63 million or 34%, including  commercial real estate loans
acquired with First United Bank in the second quarter of 2007.  Average deposits
increased $164 million or 18% to $1.1 billion, including consumer deposit growth
of $26 million or 5% and wealth  management  deposit  growth of $120  million or
46%.

Net income in New Mexico totaled $5.9 million for the second quarter of 2008, up
$860  thousand  or 17% over the same  quarter  of  2007.  Net  interest  revenue
increased $861 thousand or 7% and operating  revenue was up $208 thousand or 5%.
Average loans increased $51 million or 7% to $786 million for the second quarter
of 2008.  Average  deposits were $956 million for the second quarter of 2008 and
$1.0 billion for 2007.  Operating expenses increased $66 thousand or 1% over the
second quarter of 2007. Personnel costs in New Mexico increased $164 thousand or
5% and non-personnel operating expense decreased $98 thousand.

Net income from  banking  operations  in Arizona  decreased  $628  thousand  due
primarily  to an  increase  in net loans  charged-off.  Net loss for the  second
quarter of 2008 totaled $148 thousand  compared with net income of $480 thousand
for the second quarter of 2007. Net loans charged-off were $1.3 million or 0.84%
of average  loans for the second  quarter of 2008,  up from $1  thousand  in the
second quarter of 2007. Net interest  revenue grew $134 thousand.  Average loans
increased  $130  million to $632  million.  Small  business  and  middle  market
commercial  loans increased $105 million compared to the second quarter of 2007.
Average  commercial real estate loans decreased $13 million or 7% in Phoenix and
increased $40 million or 25% in Tucson.  Other operating  revenue  increased $97
thousand and operating expenses decreased $68 thousand or 2%.

Net  income  from  banking  operations  in the  Kansas  City  market was up $361
thousand  compared  with the  second  quarter  of  2007.  Net  interest  revenue
increased  $904  thousand  and other  operating  revenue  was up $948  thousand.
Average loans  increased $200 million to $406 million due primarily to growth in
commercial loans. Average deposits were up $36 million to $89 million. Operating
expenses for the second  quarter of 2008 totaled $3.2 million,  up $571 thousand
over the second  quarter of 2007.  Net loans  charged off were $690  thousand or
0.68% of average  loans for the second  quarter of 2008,  up from $1 thousand in
the second quarter of 2007.

 17


Table 11 -  Bank of Texas
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $      44,485     $      45,929    $      89,447     $      91,237
NIR (expense) from internal sources                      (5,228)           (7,483)         (12,218)          (14,683)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                     39,257            38,446           77,229            76,554

Other operating revenue                                   8,417             6,852           16,014            13,137
Operating expense                                        26,979            23,873           54,211            45,583
Gains on financial instruments, net                           -                 -              258                 -
Net loans charged off (recovered)                           987              (609)           2,894               536
Net income                                               12,692            14,057           23,356            27,841

Average assets                                    $   4,795,919     $   4,102,189    $   4,705,447     $   4,029,689
Average economic capital                                247,030           296,580          231,200           207,010
Average invested capital                                498,910           463,660          483,090           458,890

Return on assets                                           1.06%             1.37%            1.00%             1.39%
Return on economic capital                                20.66%            19.01%           20.32%            27.12%
Return on average invested capital                        10.23%            12.16%            9.72%            12.23%
Efficiency ratio                                          56.59%            52.70%           58.14%           50.82%




Table 12 -  Bank of Albuquerque
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $      16,803     $      18,735    $      33,891     $      36,446
NIR (expense) from internal sources                      (2,751)           (5,544)          (6,939)          (10,770)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                     14,052            13,191           26,952            25,676

Other operating revenue                                   4,568             4,360            8,807             8,286
Operating expense                                         7,863             7,797           15,811            15,111
Gains on financial instruments, net                           -                 -              190                 -
Net loans charged off                                     1,025             1,428            1,137             1,559
Net income                                                5,947             5,087           11,607            10,565

Average assets                                    $   2,393,109     $   1,616,356    $   2,101,474     $   1,577,580
Average economic capital                                101,380            89,430           96,830            88,510
Average invested capital                                120,470           108,520          115,920           107,600

Return on assets                                           1.00%            1.26%             1.11%             1.35%
Return on economic capital                                23.59%            22.82%           24.11%            24.07%
Return on average invested capital                        19.85%            18.80%           20.14%            19.80%
Efficiency ratio                                          42.23%            44.42%           44.22%            44.49%


 18


Table 13 - Bank of Arkansas
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $       4,137     $       4,196    $       8,425     $       7,637
NIR (expense) from internal sources                      (1,101)           (1,726)          (2,629)           (3,117)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                      3,036             2,470            5,796             4,520

Other operating revenue                                     288               310              643               644
Operating expense                                         1,158             1,098            2,221             2,139
Gains on financial instruments, net                           -                 -                7                 -
Net loans charged off                                       782               264            1,356               406
Net income                                                  846               867            1,753             1,599

Average assets                                    $     426,386     $     333,995    $     419,108     $     308,324
Average economic capital                                 26,090            19,430           22,220            18,280
Average invested capital                                 26,090            19,430           22,220            18,280

Return on assets                                           0.80%             1.04%            0.84%             1.05%
Return on economic capital                                13.04%            17.90%           15.87%            17.64%
Return on average invested capital                        13.04%            17.90%           15.87%            17.64%
Efficiency ratio                                          34.84%            39.50%           34.49%            41.42%




Table 14 - Colorado State Bank and Trust
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $      14,873     $      17,734    $      31,805     $      35,143
NIR (expense) from internal sources                      (4,233)           (7,123)          (9,794)          (14,154)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                     10,640            10,611           22,011            20,989

Other operating revenue                                   3,995             3,157            7,744             6,344
Operating expense                                         9,727             7,197           20,235            13,944
Gains on financial instruments, net                           -                 -               66                 -
Net loans charged off                                        17                 7              434                81
Net income                                                3,004             4,011            5,626             8,131

Average assets                                    $   1,865,368     $   1,594,657    $   1,888,792     $   1,576,326
Average economic capital                                111,620            78,030          110,430            80,170
Average invested capital                                166,920           133,330          165,720           135,470

Return on assets                                           0.65%             1.01%            0.60%            1.04%
Return on economic capital                                10.82%            20.62%           10.25%           20.45%
Return on average invested capital                         7.24%            12.07%            6.83%           12.10%
Efficiency ratio                                          66.46%            52.27%           68.01%           51.02%


 19


Table 15 - Bank of Arizona
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $       8,175     $      10,185    $      16,965     $      19,743
NIR (expense) from internal sources                      (3,119)           (5,263)          (6,986)          (10,246)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                      5,056             4,922            9,979             9,497

Other operating revenue                                     281               184              557               368
Operating expense                                         4,251             4,319            8,325             7,955
Net loans charged off                                     1,329                 1            2,143                 1
Net income (loss)                                          (148)              480               42             1,166

Average assets                                    $     638,673     $     576,311    $     616,571     $     564,516
Average economic capital                                 63,910            50,320           61,550            47,270
Average invested capital                                 80,560            66,970           78,200            63,920

Return on assets                                          (0.09)%            0.33%            0.01%             0.42%
Return on economic capital                                (0.93)%            3.83%            0.14%             4.97%
Return on average invested capital                        (0.74)%            2.87%            0.11%             3.68%
Efficiency ratio                                          79.65%            84.59%           79.01%            80.64%




Table 16 - Bank of Kansas City
 (Dollars in Thousands)
                                                     Three months ended June 30,         Six months ended June 30,
                                                  ---------------------------------- ----------------------------------
                                                         2008              2007             2008              2007
                                                     -------------     -------------    --------------    -------------
                                                                                           
NIR (expense) from external sources               $       4,812     $       4,023    $       9,762     $       8,300
NIR (expense) from internal sources                      (2,342)           (2,457)          (5,080)           (5,283)
                                                     -------------     -------------    --------------    -------------
Net interest revenue                                      2,470             1,566            4,682             3,017

Other operating revenue                                   1,703               755            2,448             1,210
Operating expense                                         3,170             2,599            5,744             4,629
Net loans charged off                                       690                 1            2,376                 2
Net income (loss)                                           191              (170)            (604)             (247)

Average assets                                    $     460,542     $     258,100    $     429,155     $     257,776
Average economic capital                                 26,690            13,330           26,390             6,520
Average invested capital                                 26,690            13,330           26,390             6,520

Return on assets                                           0.17%            (0.26)%          (0.28)%           (0.19)%
Return on economic capital                                 2.88%            (5.12)%          (4.60)%           (7.64)%
Return on average invested capital                         2.88%            (5.12)%          (4.60)%           (7.64)%
Efficiency ratio                                          75.96%           111.98%           80.56%           109.51%



Financial Condition

Securities

Investment securities,  which consist primarily of Oklahoma municipal bonds, are
carried at cost and  adjusted  for  amortization  of  premiums or  accretion  of
discounts.  At June 30, 2008, investment securities were carried at $246 million
and had a fair value of $243 million.  Management  has the ability and intent to
hold these securities until they mature.

Available for sale securities,  which may be sold prior to maturity, are carried
at fair value.  Unrealized gains or losses, less deferred taxes, are recorded as
accumulated other  comprehensive  income in shareholders'  equity. The amortized
cost of available for sale securities  totaled $6.0 billion at June 30, 2008, up
$337  million   compared  with  March  31,  2008.   Mortgage-backed   securities
represented 97% of total available for sale securities.

The primary  risk of holding  mortgage-backed  securities  comes from  extension
during periods of rising interest rates or prepayment  during periods of falling
interest  rates. We evaluate this risk through  extensive  modeling of risk both
before

 20

making an  investment  and  throughout  the life of the  security.  The expected
duration of the mortgage-backed securities portfolio was approximately 2.9 years
at June 30, 2008.  Management  estimates that the expected duration would extend
to  approximately  3.3 years  assuming a 300 basis point  immediate  rate shock.
Mortgage-backed  securities also have credit risk from delinquency or default of
the underlying loans. The Company mitigates this risk by primarily  investing in
securities issued by U.S. government  agencies.  Principal and interest payments
on the underlying loans are either fully or partially guaranteed. Credit risk on
mortgage-backed  securities  originated  by  private  issuers  is  mitigated  by
investment in senior tranches with additional collateral support.

The Company has invested $46 million in variable rate perpetual preferred stocks
issued by seven major banks and brokerage houses.  Although these issuers remain
rated investment  grade by the major rating agencies and all scheduled  dividend
payments have been made, the fair values of these stocks declined to $32 million
at as of June 30, 2008.  Cumulative  other-than-temporary  impairment charges of
$14  million  have  been  recognized.  The fair  value of these  securities  has
decreased an additional $5.1 million since June 30, 2008.

Net unrealized  losses on available for sale  securities  totaled $91 million at
June 30, 2008  compared with net  unrealized  losses of $28 million at March 31,
2008. The aggregate  gross amount of unrealized  losses at June 30, 2008 totaled
$123 million.  Management  evaluated the securities  with  unrealized  losses to
determine  if we  believe  that  the  losses  were  temporary.  This  evaluation
considered  factors such as causes of the  unrealized  losses and  prospects for
recovery over various  interest rate  scenarios and time periods.  The portfolio
does not hold any securities backed by sub-prime mortgage loans,  collateralized
debt obligations or collateralized loan obligations.  Approximately $416 million
of Alt-A  mortgage-backed  securities  were  held at June 30,  2008 with a total
unrealized  loss  of  $29  million.   Approximately  82%  of  the  Alt-A  backed
securities,  including all Alt-A  mortgage-backed  securities originated in 2006
and 2007,  are AAA rated and are  credit  enhanced  with  additional  collateral
support.  Approximately  86%  of all of  our  Alt-A  mortgage-backed  securities
represent pools of fixed-rate  mortgage loans.  Management does not believe that
any of the unrealized losses were due to credit concerns. We also considered our
intent and  ability to either  hold or sell the  securities.  It is our  belief,
based on currently available information and our evaluation, that the unrealized
losses in these securities were temporary.

Certain mortgage-backed  securities,  identified as mortgage trading securities,
have been  designated as economic  hedges of mortgage  servicing  rights.  These
securities  are carried at fair value with changes in fair value  recognized  in
current period income.  These  securities are held with the intent that gains or
losses will offset changes in the fair value of mortgage  servicing rights.  The
Company  also  maintains  a  separate  trading   portfolio.   Trading  portfolio
securities,  which are also  carried at fair  value  with  changes in fair value
recognized in current  period  income,  are acquired and held with the intent to
sell at a profit to the Company.

Loans

The aggregate  loan  portfolio  before  allowance for loan losses  totaled $12.6
billion at June 30, 2008, a $250 million or 8% annualized  increase  since March
31, 2008. Loan growth was broadly  distributed among the various segments of the
portfolio and across all geographic markets.

 21


---------------------------------------------------------------------------------------------------------------------
Table 17 - Loans
(In thousands)
                                          June 30,        March 31,       Dec. 31,        Sept. 30,        June 30,
                                           2008             2008           2007             2007            2007
                                    ---------------------------------------------------------------------------------
Commercial:
                                                                                        
  Energy                             $   1,895,050    $   1,966,996   $   1,954,967   $   1,852,681    $   1,842,888
  Services                               1,848,360        1,784,723       1,721,143       1,671,291        1,686,650
  Wholesale/retail                       1,226,875        1,206,224       1,081,172       1,039,855        1,017,486
  Manufacturing                            542,019          542,297         493,185         536,631          596,002
  Healthcare                               747,434          733,086         680,294         648,871          606,965
  Agriculture                              253,198          248,345         236,860         259,904          313,247
  Other commercial and industrial          525,637          475,187         569,884         501,128          485,594
---------------------------------------------------------------------------------------------------------------------
      Total commercial                   7,038,573        6,956,858       6,737,505       6,510,361        6,548,832
---------------------------------------------------------------------------------------------------------------------

Commercial real estate:
  Construction and land development      1,021,135        1,066,096       1,004,547         975,764          916,526
  Multifamily                              251,325          236,787         214,388         234,182          221,069
  Other real estate loans                1,555,037        1,529,041       1,531,537       1,575,089        1,654,385
---------------------------------------------------------------------------------------------------------------------
      Total commercial real estate       2,827,497        2,831,924       2,750,472       2,785,035        2,791,980
---------------------------------------------------------------------------------------------------------------------

Residential mortgage:
  Secured by 1-4 family residential
    properties                           1,607,597        1,529,769       1,531,296       1,497,568        1,399,637
  Residential mortgages held for sale      119,944           91,905          76,677          73,488          116,257
---------------------------------------------------------------------------------------------------------------------
      Total residential mortgage         1,727,541        1,621,674       1,607,973       1,571,056        1,515,894
---------------------------------------------------------------------------------------------------------------------

Consumer:
  Indirect automobile                      735,098          685,803         625,203         592,207          554,150
  Other consumer                           309,273          291,401         296,094         292,505          288,526
---------------------------------------------------------------------------------------------------------------------
      Total consumer                     1,044,371          977,204         921,297         884,712          842,676
---------------------------------------------------------------------------------------------------------------------

  Total                              $  12,637,982    $  12,387,660   $  12,017,247   $  11,751,164    $  11,699,382
---------------------------------------------------------------------------------------------------------------------



The commercial loan portfolio increased $82 million during the second quarter of
2008 to $7.0 billion at June 30, 2008.  Energy loans totaled $1.9 billion or 15%
of total loans. Outstanding energy loans decreased $72 million during the second
quarter of 2008,  including a $46 million  decrease in net outstanding  balances
and a $26 million charge off of SemGroup  loans.  Approximately  $1.6 billion of
energy loans was to oil and gas  producers,  down from $1.7 billion at March 31,
2008. The amount of credit available to these customers  generally  depends on a
percentage of the value of their proven  energy  reserves  based on  anticipated
prices.  The energy  category also included  loans to borrowers  involved in the
transportation  and  sale  of oil  and gas  and to  borrowers  that  manufacture
equipment or provide other services to the energy industry.  The energy category
of our loan portfolio is distributed  $1.0 billion in Oklahoma,  $576 million in
Texas and $295 million in Colorado.

The services  sector of the loan portfolio  totaled $1.8 billion or 15% of total
loans  and  consists  of a large  number of loans to a  variety  of  businesses,
including communications, gaming and transportation services. Approximately $1.3
billion of the services category is made up of loans with individual balances of
less than $10 million.  Approximately $703 million of the outstanding balance of
services loans is attributed to Texas, $558 million to Oklahoma, $238 million to
New Mexico, $134 million to Arizona and $104 million to Colorado.

Other  notable loan  concentrations  by primary  industry of the  borrowers  are
presented in Table 17.

BOK Financial participates in shared national credits when appropriate to obtain
or maintain business relationships with local customers. Shared national credits
are defined by banking  regulators  as credits of more than $20 million and with
three or more  non-affiliated  banks as  participants.  At June  30,  2008,  the
outstanding principal balance of these loans totaled $1.7 billion. Substantially
all of these  loans  are to  borrowers  with  local  market  relationships.  BOK
Financial serves as the agent lender in approximately 24% of its shared national
credits,  based on dollars  committed.  The Company's lending policies generally
avoid loans in which we do not have the opportunity to maintain or achieve other
business relationships with the customer.

Commercial  real estate loans totaled $2.8 billion or 22% of the loan  portfolio
at June 30, 2008.  Over the past five years,  the percentage of commercial  real
estate loans to our total loan portfolio ranged from 20% to 23%. The outstanding
balance of  commercial  real estate loans  decreased $4 million or 1% annualized
from the previous quarter end. Construction and land development loans decreased
$45 million to $1.0 billion. Loans secured by multifamily

 22

residential property increased $15 million and loans secured by other commercial
real estate increased $26 million.

Loans secured by land, residential lots and construction totaled $1.0 billion at
June 30, 2008.  Approximately  $265 million of these loans are attributed to the
Oklahoma market,  $299 million to the Texas market, $180 million to the Colorado
market and $173  million to the Arizona  market.  Other  commercial  real estate
loans  totaled $1.6 billion at June 30, 2008.  The  geographic  distribution  of
these loans  included  $547  million in Oklahoma,  $484  million in Texas,  $186
million in New Mexico, $162 million in Arizona and $87 million in Colorado.  The
major components of other commercial real estate loans were retail  facilities -
$378 million,  office buildings - $423 million and industrial  facilities - $180
million.

Residential mortgage loans, excluding loans held for sale, totaled $1.6 billion,
up $78 million  since March 31,  2008.  At June 30, 2008,  residential  mortgage
loans included $477 million of home equity loans, $520 million of loans held for
business  relationship  purposes,  $447 million of adjustable rate mortgages and
$138 million of loans held for  community  development.  Loans held for business
relationship  purposes  increased $57 million and adjustable rate mortgage loans
increased  $22  million  since  March  31,  2008.  We have no  concentration  in
sub-prime  residential mortgage loans. Our portfolio of adjustable rate mortgage
loans is generally  underwritten  to prime  standards and does not include loans
with initial rates that are below market.

At June 30, 2008,  consumer loans  included $735 million of indirect  automobile
loans.  Approximately $476 million of these loans were purchased from dealers in
Oklahoma and $181 million were purchased from dealers in Arkansas. The remaining
$78 million were purchased from dealers in Texas. Indirect automobile loans grew
$49 million since March 31, 2008, including $27 million in Texas, $15 million in
Oklahoma and $7 million in Arkansas. Approximately 7% of the outstanding balance
at June  30,  2008 is  considered  near-prime,  which  is  defined  as  loans to
borrowers that had poor credit in the past but have re-established credit over a
period of time.  We generally do not  originate  sub-prime  indirect  automobile
loans.

 23


---------------------------------------------------------------------------------------------------------------------
Table 18 - Loans by Principal Market Area
(In thousands)

                                          June 30,        March 31,       Dec. 31,        Sept. 30,        June 30,
                                           2008             2008           2007             2007            2007
                                    ---------------------------------------------------------------------------------
Oklahoma:
                                                                                        
   Commercial                        $   3,228,179    $   3,248,424   $   3,219,176   $   3,113,412    $   3,317,877
   Commercial real estate                  875,546          940,686         890,703         875,135          897,838
   Residential mortgage                  1,099,277        1,080,882       1,080,483       1,058,142          971,692
   Residential mortgage held for sale      119,944           91,905          76,677          73,488          112,596
   Consumer                                601,184          586,695         576,070         562,631          540,986
                                    ---------------------------------------------------------------------------------
     Total Oklahoma                  $   5,924,130    $   5,948,592   $   5,843,109   $   5,682,808    $   5,840,989
                                    ---------------------------------------------------------------------------------

Texas:
   Commercial                        $   2,166,925    $   2,124,192   $   1,985,645   $   1,941,731    $   1,856,049
   Commercial real estate                  889,364          838,781         846,303         913,910          888,118
   Residential mortgage                    299,996          262,305         275,533         266,850          263,344
   Consumer                                204,081          168,949         142,958         133,391          135,659
                                    ---------------------------------------------------------------------------------
     Total Texas                     $   3,560,366    $   3,394,227   $   3,250,439   $   3,255,882    $   3,143,170
                                    ---------------------------------------------------------------------------------

New Mexico:
   Commercial                        $     451,225    $     472,543   $     473,262   $     446,573    $     434,394
   Commercial real estate                  271,177          258,731         252,884         256,994          263,342
   Residential mortgage                     89,469           85,834          84,336          83,274           81,521
   Consumer                                 16,977           14,977          16,105          15,769           13,225
                                    ---------------------------------------------------------------------------------
     Total New Mexico                $     828,848    $     832,085   $     826,587   $     802,610    $     792,482
                                    ---------------------------------------------------------------------------------

Arkansas:
   Commercial                        $      96,775    $     100,489   $     106,328   $     117,993    $     103,534
   Commercial real estate                  124,049          130,956         124,317         107,588          102,537
   Residential mortgage                     19,527           16,621          16,393          18,411           22,508
   Consumer                                197,979          180,551         163,626         148,404          129,431
                                    ---------------------------------------------------------------------------------
     Total Arkansas                  $     438,330    $     428,617   $     410,664   $     392,396    $     358,010
                                    ---------------------------------------------------------------------------------

Colorado:
   Commercial                        $     489,844    $     486,525   $     490,373   $     491,204    $     480,097
   Commercial real estate                  276,062          261,099         252,537         247,802          274,610
   Residential mortgage                     38,517           31,011          26,556          26,322           18,516
   Consumer                                 16,367           17,552          16,457          18,623           18,470
                                    ---------------------------------------------------------------------------------
     Total Colorado                  $     820,790    $     796,187   $     785,923   $     783,951    $     791,693
                                    ---------------------------------------------------------------------------------

Arizona:
   Commercial                        $     207,173    $     174,360   $     157,341   $     147,103    $     124,765
   Commercial real estate                  351,058          361,567         342,673         349,840          326,951
   Residential mortgage                     53,321           50,719          46,269          43,510           43,192
   Consumer                                  5,315            6,815           5,522           5,491            4,683
                                    ---------------------------------------------------------------------------------
     Total Arizona                   $     616,867    $     593,461   $     551,805   $     545,944    $     499,591
                                    ---------------------------------------------------------------------------------

Kansas / Missouri:
   Commercial                        $     398,452    $     350,325   $     305,380   $     252,345    $     232,116
   Commercial real estate                   40,241           40,104          41,055          33,766           38,584
   Residential mortgage                      7,490            2,397           1,726           1,059            2,525
   Consumer                                  2,468            1,665             559             403              222
                                    ---------------------------------------------------------------------------------
     Total Kansas / Missouri         $     448,651    $     394,491   $     348,720   $     287,573    $     273,447
                                    ---------------------------------------------------------------------------------
Total BOK Financial loans            $  12,637,982    $  12,387,660   $  12,017,247   $  11,751,164    $  11,699,382
                                    ---------------------------------------------------------------------------------



Loan Commitments

BOK Financial enters into certain  off-balance sheet  arrangements in the normal
course of business.  These arrangements  included loan commitments which totaled
$5.6 billion and standby  letters of credit  which  totaled $626 million at June
30, 2008. Loan commitments may be unconditional obligations to provide financing
or conditional  obligations that depend on the borrower's  financial  condition,
collateral value or other factors.  Standby letters of credit are  unconditional
commitments to guarantee the performance of our customer to a third party. Since
some of these  commitments  are expected to expire before being drawn upon,  the
total commitment amounts do not necessarily

 24

represent future cash  requirements.  Standby letters of credit issued on behalf
of customers whose loans are non-performing totaled approximately $14 million.

The Company also has off-balance  sheet  commitments  for  residential  mortgage
loans sold with full or partial  recourse.  These  loans  consist of first lien,
fixed  rate  residential  mortgage  loans  originated  under  various  community
development  programs  and sold to U.S.  government  agencies.  These loans were
underwritten to standards approved by the agencies, including full documentation
and focused  primarily on  first-time  homebuyers.  However,  these loans have a
higher risk of delinquency and losses given default than traditional residential
mortgage  loans.  A separate  recourse  reserve is  maintained  as part of other
liabilities.  At June 30, 2008,  the principal  balance of loans sold subject to
recourse  obligations  totaled $400 million.  Approximately $15 million of these
loans were  originated  in 2008,  $107  million in 2007 and $89 million in 2006.
Substantially  all of  these  loans  are to  borrowers  in our  primary  markets
including  $281 million to  borrowers  in Oklahoma,  $45 million to borrowers in
Arkansas,  $23 million to borrowers  in New Mexico,  $19 million to borrowers in
the Kansas City area and $17 million to  borrowers in Texas.  These  programs to
originate and sell mortgage loans with recourse were  discontinued  in the first
quarter of 2008.

We maintain a separate  reserve for this  off-balance  commitment  which totaled
$7.5  million  at June 30,  2008.  Approximately  2.12% of the  loans  sold with
recourse  with an  outstanding  principal  balance of $8.7  million  were either
delinquent more than 90 days, in bankruptcy or in foreclosure. The provision for
credit losses on loans sold with recourse, which is included in mortgage banking
costs,  was $2.9  million  for the second  quarter of 2008.  Net losses  charged
against the reserve totaled $1.3 million for the second quarter of 2008.

Derivatives with Credit Risk

The Company  offers  programs that permit its customers to hedge various  risks,
including  fluctuations in energy, cattle and other agricultural product prices,
interest rates and foreign  exchange  rates,  or to take positions in derivative
contracts.  Each of these  programs work  essentially  the same way.  Derivative
contracts  are executed  between the  customers  and BOK  Financial.  Offsetting
contracts  are  executed  between  the Company and  selected  counterparties  to
minimize  the risk to us of  changes  in  commodity  prices,  interest  rates or
foreign exchange rates. The counterparty contracts are identical to the customer
contracts, except for a fixed pricing spread or a fee paid to us as compensation
for administrative costs, credit risk and profit.

Our customer  energy hedging  program is an integral part of our energy lending.
This program allows customers that either produce,  purchase, store or transport
oil and natural  gas to hedge their  commodity  price  risk.  We believe  that a
customer's  prudent  hedging  strategy  reduces  our  overall  credit  exposure.
Generally,  the fair value of customer  contracts  will  increase or decrease in
direct  relation to the fair value of their oil or natural gas reserves or their
obligations to acquire or deliver  energy  products.  For example,  the amount a
customer owes us to settle an energy  contract may increase as market prices for
that  commodity  increase.  The market price for the oil or natural gas owned by
that  customer  will also  increase  as the  market  prices  for that  commodity
increase.  This relationship is one way our customer energy derivative contracts
remain well-secured as energy prices change.

The customer derivative programs create credit risk for potential amounts due to
the Company from its customers and from the counterparties. Customer credit risk
is monitored  through  existing credit  policies and procedures.  The effects of
changes  in  commodity  prices,  interest  rates or foreign  exchange  rates are
evaluated  across a range of possible  options to determine the maximum exposure
we are  willing to have  individually  to any  customer.  Customers  may also be
required to provide margin collateral to further limit our credit risk.

Counterparty  credit risk is evaluated through existing policies and procedures.
This evaluation  considers the total relationship between BOK Financial and each
of the counterparties. Individual limits are established by management, approved
by Credit Administration and reviewed by the Asset / Liability Committee. Margin
collateral is required if the exposure  between the Company and any counterparty
exceeds  established  limits.  Based on declines in the  counterparties'  credit
ratings, these limits are reduced and additional margin collateral is required.

A  deterioration  of the  credit  standing  of one or more of the  customers  or
counterparties to these contracts may result in BOK Financial recognizing a loss
as the fair value of the  affected  contracts  may no longer move in tandem with
the offsetting contracts.  This occurs if the credit standing of the customer or
counterparty  deteriorated  such  that  either  the  fair  value  of  underlying
collateral no longer  supported  the contract or the customer or  counterparty's
ability to provide margin  collateral  was impaired.  At June 30, 2008, the fair
value of derivative  contracts  with SemGroup was reduced to  approximately  $37
million and a charge of $61 million was recognized  because of their  bankruptcy
filing on July 22, 2008 and the estimated value of the underlying  collateral no
longer supported the contracts.

At June 30, 2008,  the fair values of  derivative  contracts  reported as assets
under these programs  totaled $1.4 billion.  This included energy contracts with
fair values of $1.3  billion,  interest rate  contracts  with fair values of $73
million,

 25

agricultural  product  contracts  with fair  values of $12  million  and foreign
exchange  contracts  with fair values of $18  million.  The  aggregate  net fair
values of derivative  contracts reported as liabilities totaled $1.4 billion. As
of January 1, 2008,  the  Company  adopted  FASB Staff  Position  FIN 39-1 which
permits  offsetting  of cash  collateral  against  the fair value of  derivative
instruments   executed  with  the  same  counterparty  under  a  master  netting
agreement.  The aggregate net fair value of derivative  liabilities  at June 30,
2008 was $455 million after offsetting $990 million of cash collateral.

Approximately  $1.3 billion or 98% of the fair value of asset  energy  contracts
was with  customers.  Approximately  $989 million of the fair value of the asset
energy  contracts  are with  energy  producing  customers.  Credit risk of these
contracts is backed by energy production owned by these customers. Approximately
$252 million or 20% of the fair value of energy contracts, including $37 million
of contracts with SemGroup,  are with customers which store or transport  energy
products.  Contracts  with  the five  largest  non-energy  producing  customers,
including  SemGroup,  total  approximately  $222  million.  Credit risk of these
contracts is backed by physical  product and other  collateral,  including  cash
margin held by the Company and letters of credit issued by third-party banks for
the benefit of the Company.  The  remaining 2% of the fair value of asset energy
contracts was with dealer  counterparties,  consisting primarily of highly-rated
financial  institutions  and energy  companies.  The maximum net exposure to any
single customer totaled $129 million at June 30, 2008.

At July 31,  2008,  the fair value of  derivative  contracts  reported as assets
under our customer hedging programs totaled $748 million, down $631 million from
$1.4 billion at June 30, 2008 due  primarily  to decreases in energy  prices and
contractual  cash  settlements.  At July 31, 2008,  the fair value of derivative
liabilities  totaled $843  million,  down $602 million from $1.4 billion at June
30, 2008. The decrease in the fair value of derivative  liabilities  reduced our
obligation to place cash margin collateral with our counterparties.  Cash margin
collateral  placed  by us to secure  our  obligations  to dealer  counterparties
decreased $564 million during July to $426 million at July 31, 2008. The loss in
fair value of SemGroup contracts, net of gains on amounts owed to energy dealers
on related contracts,  decreased $14.7 million during July 2008 due to decreases
in energy prices.  This  reduction in net loss  increases  brokerage and trading
revenue in the third  quarter.  However,  the net loss on SemGroup  contracts is
subject to further changes during the third quarter until the settlement  prices
on open contracts become fixed. At July 31, 2008,  approximately $160 million of
the fair value of energy  contracts are with customers  which store or transport
energy products. Contracts with the five largest non-energy producing customers,
including SemGroup,  total approximately $151 million.  The maximum net exposure
to any single customer totaled $95 million at July 31, 2008.

Summary of Loan Loss Experience

BOK  Financial  maintains  separate  reserves  for loan losses and  reserves for
off-balance sheet credit risk. Combined,  these reserves totaled $177 million or
1.41%  of  outstanding  loans at June 30,  2008  and  $156  million  or 1.27% of
outstanding loans at March 31, 2008.

The reserve for loan losses, which is available to absorb losses inherent in the
loan portfolio, totaled $154 million at June 30, 2008 compared with $137 million
at March 31, 2008.  These  amounts  represented  1.23% and 1.11% of  outstanding
loans,  excluding  loans  held for sale,  at June 30,  2008 and March 31,  2008,
respectively.  Losses  on  loans  held  for  sale,  principally  mortgage  loans
accumulated for placement into security pools,  are charged to earnings  through
adjustment in the carrying value.  The reserve for loan losses also  represented
96% of outstanding  balance of nonperforming  loans at June 30, 2008 compared to
123% at March 31, 2008.  Net loans charged off during the second quarter of 2008
totaled $39.0 million  compared to $8.9 million in the previous quarter and $5.8
million in the second quarter of 2007.  Charge-offs of SemGroup loans were $26.0
million.  The ratio of net loans  charged off to average  outstanding  loans was
1.26% for the second  quarter of 2008  compared  with 0.29% in first  quarter of
2008. Net commercial  loan  charge-offs,  excluding  SemGroup and net commercial
real  estate  loan  charge-offs   increased  $2.9  million  and  $924  thousand,
respectively,  compared with the previous quarter.  Subsequent to June 30, 2008,
the Company  recovered $11.1 million on two loans charged off in previous years.
These  recoveries  will  increase  the  allowance  for loan  losses in the third
quarter of 2008.

Consumer loan net  charge-offs,  which  includes  indirect auto loan and deposit
account overdraft  losses,  totaled $2.9 million for the second quarter of 2008,
up $168 thousand over the previous  quarter.  Net  charge-offs  of indirect auto
loans  totaled $1.7 million for the second  quarter of 2008 and $1.6 million for
the first  quarter  of 2008.  Net  indirect  auto  loans  charged  off were $950
thousand in the Oklahoma  market,  $692 thousand in the Arkansas  market and $56
thousand in the Texas  market.  Approximately  1.95% of the indirect  automobile
loan portfolio is past due 30 days or more,  including 2.03% in Oklahoma,  2.03%
in Arkansas and 1.27% in Texas.  At March 31, 2008,  approximately  1.96% of the
indirect automobile loan portfolio was past due 30 days or more.

The  Company  considers  the credit  risk from loan  commitments  and letters of
credit in its  evaluation  of the  adequacy of the reserve  for loan  losses.  A
separate  reserve for  off-balance  sheet  credit risk is  maintained.  Table 19
presents  the trend of reserves  for  off-balance  sheet  credit  losses and the
relationship between the reserve and loan commitments. The

 26

relationship  between the  combined  reserve for credit  losses and  outstanding
loans is also presented for  comparison  with peer banks and others who have not
adopted the preferred presentation. The provision for credit losses included the
combined  charge to expense for both the reserve for loan losses and the reserve
for off-balance sheet credit losses. All losses incurred from lending activities
will ultimately be reflected in charge-offs  against the reserve for loan losses
following  funds  advanced  against   outstanding   commitments  and  after  the
exhaustion of collection efforts.


------------------------------------------------------------------------------------------------------------------------------
Table 19 - Summary of Loan Loss Experience
(In thousands)
                                                                           Three Months Ended
                                            ----------------------------------------------------------------------------------
                                                 June 30,         March 31,       Dec. 31,       Sept. 30,         June 30,
                                                   2008             2008           2007            2007             2007
                                            ----------------------------------------------------------------------------------
Reserve for loan losses:
                                                                                               
Beginning balance                           $     136,584     $     126,677   $     121,932  $     119,759    $     114,371
   Loans charged off:
      Commercial                                   33,502             4,244           2,731          3,072            5,454
      Commercial real estate                        2,572             1,602           1,369            339               57
      Residential mortgage                          1,068               814             891            394              300
      Consumer                                      4,384             4,418           3,939          3,684            3,000
------------------------------------------------------------------------------------------------------------------------------
      Total                                        41,526            11,078           8,930          7,489            8,811
------------------------------------------------------------------------------------------------------------------------------
   Recoveries of loans previously charged off:
      Commercial                                      842               435             242          1,172            1,649
      Commercial real estate                           98                52               2             30               37
      Residential mortgage                            121                58              19             86               15
      Consumer                                      1,474             1,676           1,321          1,332            1,338
------------------------------------------------------------------------------------------------------------------------------
      Total                                         2,535             2,221           1,584          2,620            3,039
------------------------------------------------------------------------------------------------------------------------------
Net loans charged off                              38,991             8,857           7,346          4,869            5,772
Provision for loan losses                          56,425            18,764          12,091          7,104            7,570
Adjustments due to acquisitions                         -                 -               -            (62)           3,590
------------------------------------------------------------------------------------------------------------------------------
Ending balance                              $     154,018     $     136,584   $     126,677  $     121,932    $     119,759
------------------------------------------------------------------------------------------------------------------------------
Reserve for off-balance sheet credit losses:
Beginning balance                           $      19,660     $      20,853   $      19,744  $      19,647    $      19,397
Provision for off-balance sheet credit losses       2,885            (1,193)          1,109             97              250
------------------------------------------------------------------------------------------------------------------------------
Ending balance                              $      22,545     $      19,660   $      20,853  $      19,744    $      19,647
------------------------------------------------------------------------------------------------------------------------------
Total provision for credit losses           $      59,310     $      17,571   $      13,200  $       7,201    $       7,820
------------------------------------------------------------------------------------------------------------------------------
Reserve for loan losses to loans outstanding
    at period-end (1)                                1.23%             1.11%           1.06%          1.04%            1.03%
Net charge-offs (annualized)
    to average loans (1)                             1.26              0.29            0.25           0.17             0.21
Total provision for credit losses (annualized)
    to average loans (1)                             1.91              0.58            0.45           0.25             0.28
Recoveries to gross charge-offs                      6.10             20.05           17.74          34.98            34.49
Reserve for loan losses as a multiple of net
    charge-offs (annualized)                         0.99x             3.86x           4.31x          6.26x            5.19x
Reserve for off-balance sheet credit losses to
    off-balance sheet credit commitments             0.36%             0.32%           0.35%          0.33%            0.33%
Combined reserves for credit losses to loans
    outstanding at period-end (1)                    1.41              1.27            1.24           1.21             1.20
------------------------------------------------------------------------------------------------------------------------------
(1) Excludes residential mortgage loans held for sale.


Specific  impairment  reserves are  determined  through  evaluation of estimated
future cash flows and collateral  value. At June 30, 2008,  specific  impairment
reserves totaled $11.0 million on total impaired loans of $139 million. Specific
impairment  reserves were $5.2 million on total impaired loans of $90 million at
March 31, 2008.

Nonspecific  reserves are  maintained  for risks beyond  factors  specific to an
individual  loan or those  identified  through  migration  analysis.  A range of
potential  losses is determined  for each risk factor  identified.  The range of
nonspecific  reserves for general  economic factors includes their effect on our
commercial,  residential  mortgage and  consumer  loan  portfolios.  Nonspecific
reserves  attributed  to general  economic  conditions  increased  in the second
quarter of 2008.  Weakness in the economy  became  more  apparent  due to rising
materials,  food and energy prices along with continued  weakness in residential
real estate markets.

The provision for credit losses  totaled $59.3 million for the second quarter of
2008,  $17.6  million  for the first  quarter of 2008 and $7.8  million  for the
second  quarter of 2007.  The second  quarter of 2008  provision  included $26.3
million  directly  related  to the  Company's  loans  and  loan  commitments  to
SemGroup. Other factors considered in determining

 27

the provision for credit losses included trends in net losses and  nonperforming
loans,  the  application  of  statistical  migration  factors to loan growth and
concentrations in commercial real estate and residential  homebuilder  loans. In
addition,  the  outstanding  balances of  criticized  and  classified  loans and
potential problem loans increased.


Nonperforming Assets

Information  regarding  nonperforming assets, which totaled $181 million at June
30,  2008  and $126  million  at March  31,  2008,  is  presented  in Table  20.
Nonperforming  assets included  nonaccrual and  renegotiated  loans and excluded
loans 90 days or more past due but still accruing interest.  Total nonperforming
assets were 1.45% of period-end  loans and repossessed  assets at June 30, 2008,
up from 1.02% at March 31, 2008. At June 30, 2008, nonperforming assets excluded
$47  million  of  amounts  due from  SemGroup  under  derivative  contracts  and
outstanding  letters of credit that have not been funded.  Amounts due under the
derivative contracts will be reclassified as loans and reported as nonperforming
if not  paid on their  contractual  settlement  dates,  primarily  in the  third
quarter of 2008.  If all amounts due from SemGroup had been reported as loans at
June 30, 2008,  nonperforming  assets and  nonperforming  assets as a percent of
period-end loans and repossessed  assets would have been $229 million and 1.82%,
respectively.

Nonaccrual  loans totaled $149 million at June 30, 2008 and $99 million at March
31, 2008.  Newly  identified  nonaccrual  loans totaled $100 million  during the
second  quarter,  including $38 million of loans to SemGroup.  Newly  identified
nonaccrual loans also included $24 million of loans to residential  homebuilders
and $12 million to a mortgage lender. Nonaccrual loans decreased $33 million for
loans  charged off and  foreclosed,  including $26 million of loans to SemGroup,
and $16 million for cash payments received. The net increase in nonaccrual loans
to SemGroup during the second quarter of 2008 totaled $12 million. Approximately
$12 million of  nonaccrual  loans are subject to the First United Bank  sellers'
escrow.

Nonaccrual commercial loans totaled $70 million at June 30, 2008 and $42 million
at March 31, 2008.  In addition to $12 million of  nonaccrual  loans to SemGroup
and a $12 million  nonaccrual loan to a mortgage lender,  nonaccrual  commercial
loans consisted primarily of loans in the services and manufacturing  sectors of
the  portfolio.  None of the other  nonaccrual  commercial  loans  exceeded  $10
million.  Approximately  $40  million  of  nonaccrual  commercial  loans  are to
borrowers  in the  Oklahoma  market,  $6 million  are in the Texas  market,  $17
million are in the Colorado market and $4 million are in the New Mexico market.

Nonaccrual commercial real estate loans totaled $60 million at June 30, 2008 and
$40 million at March 31, 2008.  Approximately  $45 million are loans  secured by
land and residential lots and construction, including $30 million in Arizona ($7
million  in Tucson  and $23  million  in  Phoenix),  $6  million in Texas and $5
million in Colorado.  Other significant  nonaccrual commercial real estate loans
included $5.3 million of retail facilities in New Mexico.

In addition to nonaccrual  loans,  nonperforming  assets included $12 million of
renegotiated loans and $21 million of real estate and other repossessed  assets.
Renegotiated  loans  consisted  of  residential   mortgage  loans  and  indirect
automobile  loans whose original terms have been  modified.  Approximately  $8.6
million of  renegotiated  loans are  residential  mortgage  loans  guaranteed by
agencies  of the U.S.  government.  Real  estate  and other  repossessed  assets
included $8 million of single family residential properties,  $5 million of land
and single family lots and construction,  $3 million of manufacturing facilities
and $2 million of  automobiles.  The geographic  distribution of real estate and
other  repossessed  assets  included $6 million in  Oklahoma,  $3 million in New
Mexico, $3 million in Colorado,  $4 million in Arkansas, $3 million in Texas and
$2 million  in  Arizona.  Approximately  $1.7  million of real  estate and other
repossessed assets are subject to the First United Bank sellers' escrow.

 28


----------------------------------------------------------------------------------------------------------------------
Table 20 - Nonperforming Assets
(In thousands)
                                                   June 30,       March 31,     Dec. 31,     Sept. 30,      June 30,
                                                     2008           2008          2007         2007          2007
                                               -----------------------------------------------------------------------
Nonaccrual loans:
                                                                                         
   Commercial                                   $    69,679   $    41,966    $    42,981  $    21,168   $    20,456
   Commercial real estate                            60,456        40,399         25,319       11,355        19,470
   Residential mortgage                              17,861        15,960         15,272       11,469        11,418
   Consumer                                             611           812            718          705           675
----------------------------------------------------------------------------------------------------------------------
   Total nonaccrual loans                           148,607        99,137         84,290       44,697        52,019
Renegotiated loans (3)                               11,840        11,850         10,394       10,752        10,113
----------------------------------------------------------------------------------------------------------------------
   Total nonperforming loans                        160,447       110,987         94,684       55,449        62,132
Other nonperforming assets                           21,025        15,112          9,475       10,627         7,664
----------------------------------------------------------------------------------------------------------------------
   Total nonperforming assets                   $   181,472   $   126,099    $   104,159  $    66,076   $    69,796
----------------------------------------------------------------------------------------------------------------------
Nonaccrual loans by principal market:
    Oklahoma                                   $     57,155  $     52,211    $    47,977  $    24,628  $     26,529
    Texas                                            20,860         8,157          4,983        4,921         6,176
    New Mexico                                        9,838         7,497         11,118        6,542         7,025
    Arkansas                                          2,924         2,866          1,635          843           816
    Colorado (4)                                     23,812         8,101          9,222        5,688         8,067
    Arizona                                          33,482        18,811          9,355        2,075         3,406
    Kansas / Missouri                                   536         1,494              -            -             -
----------------------------------------------------------------------------------------------------------------------
    Total nonaccrual loans                     $    148,607  $     99,137    $    84,290  $    44,697  $     52,019
----------------------------------------------------------------------------------------------------------------------
Nonaccrual loans by loan portfolio sector:
    Commercial:
          Energy                               $     12,342  $        475    $       529  $       536  $        542
          Manufacturing                               6,731         9,274          9,915        8,858         8,705
          Wholesale / retail                          3,735         3,868          3,792        3,850         2,838
          Agriculture                                   811         1,848            380          540           769
          Services                                   30,080        23,849         25,468        5,987         6,843
          Healthcare                                  3,791         2,079          2,301          963           509
          Other                                      12,189           573            596          434           250
----------------------------------------------------------------------------------------------------------------------
               Total commercial                      69,679        41,966         42,981       21,168        20,456
    Commercial real estate:
          Land development and construction          45,291        29,439         13,466        7,289         9,333
          Multifamily                                   896         1,906          3,998        1,238         2,233
          Other commercial real estate               14,269         9,054          7,855        2,828         7,904
----------------------------------------------------------------------------------------------------------------------
               Total commercial real estate          60,456        40,399         25,319       11,355        19,470
    Residential mortgage                             17,861        15,960         15,272       11,469        11,418
    Consumer                                            611           812            718          705           675
----------------------------------------------------------------------------------------------------------------------
    Total nonaccrual loans                     $    148,607  $     99,137    $    84,290  $    44,697  $     52,019
----------------------------------------------------------------------------------------------------------------------
Ratios:
Reserve for loan losses to nonperforming loans       95.99%       123.06%        133.79%      219.90%       192.75%
Nonperforming loans to period-end loans (1)           1.28          0.90           0.79         0.47          0.54
----------------------------------------------------------------------------------------------------------------------
Loans past due (90 days)  (2)                  $    10,683   $    11,266     $    5,575   $    3,986   $     4,215
----------------------------------------------------------------------------------------------------------------------

(1) Excludes residential mortgage loans held for sale.
(2) Includes residential mortgages guaranteed
    by agencies of the U.S. Government.        $     1,015   $       788     $    1,017   $    1,806   $     2,028
(3) Includes residential mortgages guaranteed
    by agencies of the U.S. Government.
    These loans have been modified to extend
    payment terms and/or reduce interest             8,638         8,386          7,550        7,083         6,430
    rates to current market.
(4) Includes loans subject to First United
    Bank sellers escrow.                            11,973         8,101          8,412        4,677         6,944
----------------------------------------------------------------------------------------------------------------------



The loan review process also identified loans that possess more than the normal
amount of risk due to deterioration in the financial condition of the borrower
or the value of the collateral. Because the borrowers are still performing in
accordance with the original terms of the loan agreements, and no loss of
principal or interest is anticipated, these loans were not included in
Nonperforming Assets. Known information does, however, cause management concern
as to the borrowers' ability to comply with current repayment terms. These
potential problem loans totaled $40 million at June 30, 2008 and $31 million at
March 31, 2008. The current composition of potential problem loans by primary
industry included real estate - $16 million, healthcare - $9 million and
services - $10 million. Potential problem real estate loans consisted primarily
of loans to residential builders in the Arizona market of $12 million.

 29

Deposits

Deposit  accounts  represent  our  largest  funding  source.   Average  deposits
represented  approximately  62% of total  liabilities and capital for the second
quarter of 2008,  down from 67% for the  second  quarter of 2007 and 64% for the
first  quarter of 2008.  The  decrease  in average  deposits  relative  to other
funding  sources is due largely to the  structuring  of our balance  sheet to be
relatively  neutral to changes in interest rates. Other borrowed funds increased
to fund an increase in average  securities to implement  this interest rate risk
management  strategy and an increase in margin assets. In addition,  competition
has increased the cost of deposits  compared to other funding sources in many of
our markets.

Average  deposits  totaled $13.3 billion for the second  quarter of 2008, a $915
million  or 7%  increase  over the  second  quarter  of 2007.  Average  deposits
increased $198 million or 6% annualized compared with the first quarter of 2008.

Interest-bearing  transaction  deposit accounts  continued to grow in the second
quarter of 2008, up $1.3 billion or 20% over the second quarter of 2007 and $244
million  or 13%  annualized  over  the  first  quarter  of 2008.  Time  deposits
decreased  $431 million or 10% from the second  quarter of 2007 and $149 million
or 14%  annualized  from the first  quarter  of 2008.  Average  demand  deposits
increased  $41  million or 3% over the second  quarter of 2007 and $100  million
over the first quarter of 2008.

Core  deposits,  which we define as  deposits of less than  $100,000,  excluding
public funds and brokered deposits, averaged $6.5 billion for the second quarter
of 2008,  $6.4  billion for the second  quarter of 2007 and $6.5 billion for the
first quarter of 2008.  Accounts  with  balances in excess of $100,000  averaged
$5.5 billion for the second quarter of 2008, $4.7 billion for the second quarter
of 2007 and $5.4 billion, for the first quarter of 2008.

Average  commercial banking deposits totaled $4.5 billion for the second quarter
of 2008, up $297 million or 7% over the second quarter of last year. The average
balance of commercial  banking  deposits for the second quarter of 2007 was $4.3
billion. Commercial deposit growth was primarily centered in Oklahoma and Texas.
Consumer  deposits averaged $5.6 billion for the second quarter of 2008, up $312
million or 6% over 2007.  Average consumer  deposit account  balances  increased
$136  million or 5% in  Oklahoma  and $169  million  or 18% in Texas,  including
deposits acquired with Worth National Bank in the second quarter of 2007. Wealth
management  deposit  accounts  averaged  $2.0 billion for the second  quarter of
2008, a $416 million or 27% increase  over 2007.  Approximately  $294 million of
the increase was in the Oklahoma market. The remaining increase was primarily in
Colorado.

The  distribution  of deposit  accounts among our principal  markets is shown in
Table 21.

 30


---------------------------------------------------------------------------------------------------------------------
Table 21 - Deposits by Principal Market Area
(In thousands)
                                          June 30,       March 31,        Dec. 31,        Sept. 30,        June 30,
                                           2008            2008            2007             2007            2007
                                    ---------------------------------------------------------------------------------
Oklahoma:
                                                                                        
   Demand                            $   1,003,516   $     999,214    $     936,160   $     717,478    $     876,671
   Interest-bearing:
     Transaction                         4,449,617       4,124,046        3,935,909       3,473,547        3,470,896
     Savings                                90,100          88,141           80,467          83,139           88,133
     Time                                2,672,401       2,230,110        2,426,822       2,725,992        2,798,719
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                7,212,118       6,442,297        6,443,198       6,282,678        6,357,748
                                    ---------------------------------------------------------------------------------
     Total Oklahoma                  $   8,215,634   $   7,441,511    $   7,379,358   $   7,000,156    $   7,234,419
                                    ---------------------------------------------------------------------------------

Texas:
   Demand                            $     734,730   $     651,781    $     738,105   $     597,534    $     626,193
   Interest-bearing:
     Transaction                         2,025,052       1,996,784        2,050,872       1,978,920        2,019,311
     Savings                                33,207          32,191           34,618          35,310           36,989
     Time                                  723,146         759,892          800,460         893,018          804,877
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                2,781,405       2,788,867        2,885,950       2,907,248        2,861,177
                                    ---------------------------------------------------------------------------------
     Total Texas                     $   3,516,135   $   3,440,648    $   3,624,055   $   3,504,782    $   3,487,370
                                    ---------------------------------------------------------------------------------

New Mexico:
   Demand                            $      99,605   $     103,329    $      93,923   $     109,854    $     113,579
   Interest-bearing:
     Transaction                           486,623         492,096          490,227         479,204          521,154
     Savings                                16,432          16,141           15,146          16,437           17,662
     Time                                  445,505         455,861          486,868         512,497          500,443
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  948,560         964,098          992,241       1,008,138        1,039,259
                                    ---------------------------------------------------------------------------------
     Total New Mexico                $   1,048,165   $   1,067,427    $   1,086,164   $   1,117,992    $   1,152,838
                                    ---------------------------------------------------------------------------------

Arkansas:
   Demand                            $      15,322   $      16,661    $       9,755   $      10,225    $      11,030
   Interest-bearing:
     Transaction                            30,344          25,923           22,519          22,401           22,096
     Savings                                   895             945              883             993            1,011
     Time                                   39,305          39,803           40,692          43,401           46,597
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   70,544          66,671           64,094          66,795           69,704
                                    ---------------------------------------------------------------------------------
     Total Arkansas                  $      85,866   $      83,332    $      73,849   $      77,020    $      80,734
                                    ---------------------------------------------------------------------------------

Colorado:
   Demand                            $      65,647   $      51,901    $      60,250   $      42,194    $      42,006
   Interest-bearing:
     Transaction                           551,310         577,454          504,116         432,188          426,031
     Savings                                20,245          22,233           23,806          27,143           35,152
     Time                                  423,014         455,262          539,523         608,962          549,676
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  994,569       1,054,949        1,067,445       1,068,293        1,010,859
                                    ---------------------------------------------------------------------------------
     Total Colorado                  $   1,060,216   $   1,106,850    $   1,127,695   $   1,110,487    $   1,052,865
                                    ---------------------------------------------------------------------------------

Arizona:
   Demand                            $      28,196   $      28,592    $      29,807   $      25,295    $      31,196
   Interest-bearing:
     Transaction                            94,733         102,564           82,682          98,611           74,892
     Savings                                 1,233             878            1,435           1,269            1,233
     Time                                    6,364           8,395           11,603          13,314           11,563
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  102,330         111,837           95,720         113,194           87,688
                                    ---------------------------------------------------------------------------------
     Total Arizona                   $     130,526   $     140,429    $     125,527   $     138,489    $     118,884
                                    ---------------------------------------------------------------------------------

Kansas / Missouri:
   Demand                            $       4,923   $       5,341    $       7,946   $       7,849    $       1,081
   Interest-bearing:
     Transaction                            12,576           9,993           10,014           3,169            1,356
     Savings                                    26              92               13              15               12
     Time                                   51,649          33,837           24,670          23,119           32,695
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   64,251          43,922           34,697          26,303           34,063
                                    ---------------------------------------------------------------------------------
     Total Kansas / Missouri         $      69,174   $      49,263    $      42,643   $      34,152    $      35,144
                                    ---------------------------------------------------------------------------------

Total BOK Financial deposits         $  14,125,716   $  13,329,460    $  13,459,291   $  12,983,078    $  13,162,254
                                    ---------------------------------------------------------------------------------


 31

Borrowings and Capital

At June 30, 2008, BOK Financial  (parent  company) had a $188 million  unsecured
revolving line of credit with certain  commercial banks that matures in December
2010.  The  outstanding  principal  balance  of this  credit  agreement  was $50
million.  Interest  is based  upon a base rate or LIBOR  plus a  defined  margin
determined by the  Company's  credit  rating.  This margin ranged from 0.375% to
1.125% or a base rate.  At June 30, 2008,  the margin  applicable  to borrowings
against  this line was  0.375%.  The base rate was defined as the greater of the
daily federal funds rate plus 0.5% or the SunTrust Bank prime rate. Interest was
generally paid monthly.  Facility fees were paid quarterly on the unused portion
of the  commitment  at rates  that  range  from  0.100% to  0.250%  based on the
Company's credit rating.

This credit  agreement  included  certain  restrictive  covenants that limit the
Company's  ability to borrow  additional  funds, to make  investments and to pay
cash dividends on common stock.  These covenants also required BOK Financial and
subsidiary  banks to maintain  minimum  capital levels and  established  maximum
nonperforming  asset levels. BOK Financial met all of the restrictive  covenants
at June 30,  2008.  Subsequent  to June 30, all  amounts  due under this  credit
agreement  were paid and the  agreement  was  terminated  at the  request of the
Company.

On July 21, 2008, the Company entered into a $188 million,  unsecured  revolving
credit agreement with George B. Kaiser, its Chairman and principal  shareholder.
Interest on the  outstanding  balance is based on one-month LIBOR plus 125 basis
points and is payable quarterly.  Additional  interest in the form of a facility
fee is paid  quarterly  on the  unused  portion  of the  commitment  at 25 basis
points.  This agreement has no  restrictive  covenants,  which provides  greater
flexibility to fund the needs of BOK Financial and its subsidiaries.

The primary source of liquidity for BOK Financial is dividends  from  subsidiary
banks,  which are limited by various  banking  regulations  to net  profits,  as
defined,  for the  preceding  two years.  Dividends  are further  restricted  by
minimum capital  requirements.  Based on the most restrictive  limitations,  the
subsidiary banks could declare up to $67 million of dividends without regulatory
approval.  Management  has  developed and the Board of Directors has approved an
internal  capital policy that is more  restrictive  than the regulatory  capital
standards.  The  subsidiary  banks could declare  dividends of up to $18 million
under this policy.

Equity capital for BOK Financial  decreased $50.2 million to $1.9 billion during
the second quarter of 2008. Cumulative retained earnings decreased $16.4 million
due to a $1.2  million  net loss  and  $15.2  million  of cash  dividends  paid.
Accumulated other comprehensive losses increased $38.7 million during the second
quarter  of 2008 due  primarily  to an  increase  in net  unrealized  losses  on
available for sale  securities.  Employee  stock option  transactions  increased
equity capital $4.8 million.

Capital is managed to  maximize  long-term  value to the  shareholders.  Factors
considered in managing  capital include  projections of future  earnings,  asset
growth  and   acquisition   strategies,   and   regulatory   and  debt  covenant
requirements.  Capital management may include subordinated debt issuance,  share
repurchase and stock and cash dividends.

On April 26, 2005, the Board of Directors authorized a share repurchase program,
which  replaced a  previously  authorized  program.  The  maximum of two million
common  shares  may be  repurchased.  The  specific  timing and amount of shares
repurchased will vary based on market conditions, securities law limitations and
other  factors.  Repurchases  may be made over time in open market or  privately
negotiated transactions. The repurchase program may be suspended or discontinued
at any time without prior notice.  Since this program began, 709,073 shares have
been repurchased by the Company for $35.4 million. No shares were repurchased in
the second  quarter of 2008. In addition,  the Company  initiated a 10b5-1 stock
repurchase plan in the second quarter of 2008. This plan has  subsequently  been
terminated.

BOK Financial and subsidiary  banks are subject to various capital  requirements
administered by federal agencies.  Failure to meet minimum capital  requirements
can result in certain mandatory and possibly additional discretionary actions by
regulators  that could  have a  material  impact on  operations.  These  capital
requirements  include  quantitative   measures  of  assets,   liabilities,   and
off-balance  sheet items. The capital  standards are also subject to qualitative
judgments by the regulators.

For a banking institution to qualify as well capitalized,  its Tier 1, Total and
Leverage  capital ratios must be at least 6%, 10% and 5%,  respectively.  All of
the Company's banking subsidiaries  exceeded the regulatory  definitions of well
capitalized  at June 30, 2008,  except Bank of Arizona.  The total capital ratio
for Bank of Arizona  at June 30,  2008 was  9.83%.  Subsequently,  $4 million of
additional  capital was  contributed,  which  brought its total capital ratio to
11.48%. The  capital  ratios  for BOK  Financial  on a  consolidated  basis  are
presented in Table 22.

 32


--------------------------------------------------------------------------------------------------------------------
Table 22 - Capital Ratios                    June 30,       March 31,       Dec. 31,      Sept. 30,     June 30,
                                               2008            2008           2007          2007          2007
                                          --------------------------------------------------------------------------
Average shareholders' equity
                                                                                            
  to average assets                            9.19%           9.69%          9.48%          9.42%         9.65%
Tangible capital ratio                         7.15%           7.83%          7.72%          7.67%         7.50%
Risk-based capital:
  Tier 1 capital                               8.86            9.38           9.38           9.30          9.12
  Total capital                               11.90           12.48          12.54          12.53         12.36
Leverage                                       7.95            8.23           8.20           8.17          8.30



Off-Balance Sheet Arrangements

During the third  quarter of 2007,  Bank of Oklahoma  agreed to guarantee  rents
totaling $28.4 million over 10 years to the City of Tulsa ("City") as owner of a
building immediately adjacent to the bank's main office. These rents are due for
space  rented  by  third-party  tenants  in the  building  as of the date of the
agreement. All guaranteed space has been rented since the date of the agreement.
At June 30, 2008, rent payments of $26.7 million remain subject to this guaranty
agreement.  In return for this  guarantee,  Bank of Oklahoma will receive 80% of
net rent as  defined in an  agreement  with the City over the next 10 years from
space in the same building that was vacant as of the date of the agreement.  The
maximum  amount that Bank of Oklahoma may receive  under this  agreement is $4.5
million.  The fair value of this agreement at inception was zero and no asset or
liability is currently recognized in the Company's financial statements.

Market Risk

Market risk is a broad term for the risk of economic loss due to adverse changes
in the fair value of a financial instrument.  These changes may be the result of
various factors,  including interest rates,  foreign exchange prices,  commodity
prices or equity prices.  Financial  instruments that are subject to market risk
can be  classified  either as held for trading or held for  purposes  other than
trading.  Market  risk  excludes  changes  in fair  value  due to  credit of the
individual issuers of financial instruments.

BOK Financial is subject to market risk primarily  through the effect of changes
in interest  rates on both its assets held for  purposes  other than trading and
trading assets.  The effects of other changes,  such as foreign  exchange rates,
commodity  prices or equity  prices do not pose  significant  market risk to BOK
Financial. BOK Financial has no material investments in assets that are affected
by changes in foreign  exchange rates or equity prices.  Energy and agricultural
product derivative contracts, which are affected by changes in commodity prices,
are matched against offsetting contracts as previously discussed.

Responsibility  for  managing  market  risk  rests  with the  Asset /  Liability
Committee  that operates  under policy  guidelines  established  by the Board of
Directors. The acceptable negative variation in net interest revenue, net income
or economic value of equity due to a specified  basis point increase or decrease
in interest  rates is generally  limited by these  guidelines to +/- 10%.  These
guidelines also set maximum levels for short-term borrowings, short-term assets,
public funds, and brokered deposits, and establish minimum levels for un-pledged
assets,  among  other  things.  Compliance  with these  guidelines  is  reviewed
monthly.

Interest Rate Risk - Other than Trading

As  previously  noted  in the Net  Interest  Revenue  section  of  this  report,
management has implemented  strategies to manage the Company's  balance sheet to
be relatively  neutral to changes in interest  rates over a twelve month period.
The effectiveness of these strategies in managing the overall interest rate risk
is evaluated through the use of an asset/liability model. BOK Financial performs
a sensitivity  analysis to identify more dynamic  interest rate risk  exposures,
including  embedded option positions,  on net interest  revenue,  net income and
economic value of equity.  A simulation  model is used to estimate the effect of
changes  in  interest  rates over the next  twelve and 24 months  based on eight
interest  rate  scenarios.  Two specified  interest  rate  scenarios are used to
evaluate  interest  rate risk against  policy  guidelines.  The first  assumes a
sustained  parallel 200 basis point  increase and the second assumes a sustained
parallel 100 basis point  decrease in interest  rates.  Management  historically
evaluated  interest rate sensitivity for a sustained 200 basis point decrease in
interest rates.  However,  the results of a 200 basis point decrease in interest
rates in the current low-rate  environment are not meaningful.  The Company also
performs a sensitivity analysis based on a "most likely" interest rate scenario,
which includes  non-parallel  shifts in interest rates. An independent source is
used to determine the most likely interest rate scenario.

The Company's  primary interest rate exposures  included the Federal Funds rate,
which affects short-term borrowings,

 33

and the  prime  lending  rate and  LIBOR,  which  are the  basis for much of the
variable-rate  loan pricing.  Additionally,  mortgage rates directly  affect the
prepayment speeds for mortgage-backed  securities and mortgage servicing rights.
Derivative  financial  instruments  and  other  financial  instruments  used for
purposes  other  than  trading  are  included  in  this  simulation.  The  model
incorporates  assumptions regarding the effects of changes in interest rates and
account balances on  indeterminable  maturity deposits based on a combination of
historical analysis and expected behavior.  The impact of planned growth and new
business  activities  is  factored  into the  simulation  model.  The effects of
changes in interest rates on the value of mortgage servicing rights are excluded
from Table 23 due to the extreme  volatility  over such a large rate range.  The
effects of interest rate changes on the value of mortgage  servicing  rights and
securities  identified as economic hedges are presented in the Lines of Business
- Mortgage Banking section of this report.

The  simulations  used to manage  market risk are based on numerous  assumptions
regarding  the effects of changes in interest  rates on the timing and extent of
re-pricing  characteristics,  future  cash flows and  customer  behavior.  These
assumptions  are  inherently  uncertain  and,  as a  result,  the  model  cannot
precisely estimate net interest revenue,  net income or economic value of equity
or  precisely  predict  the  impact  of higher  or lower  interest  rates on net
interest  revenue,  net income or economic value of equity.  Actual results will
differ from simulated results due to timing, magnitude and frequency of interest
rate changes, market conditions and management strategies, among other factors.



Table 23 - Interest Rate Sensitivity
 (Dollars in Thousands)

                                      200 bp Increase                100 bp Decrease                Most Likely
                                 --------------------------    ---------------------------    -------------------------
                                     2008         2007            2008          2007             2008         2007
                                 ------------- ------------    ------------ --------------    ------------ ------------
Anticipated impact over the
   next twelve months on
                                                                                                 
   net interest revenue           $(17,132)     $ (3,335)      $    7,392       ***            $ (1,386)        $ 567
                                      (1.1)%        (0.6)%            0.4%      ***                (0.2)%         0.1%
-------------------------------- --------------- ------------ --- ----------- -------------- -- ----------- ------------
***A 100 basis point decrease was not computed in 2007. A 200 basis point
decrease in interest rates was expected to increase net interest revenue by $1.4
million or 0.2%.



Trading Activities

BOK  Financial  enters  into  trading  activities  both as an  intermediary  for
customers and for its own account.  As an intermediary,  BOK Financial will take
positions in securities, generally mortgage-backed securities, government agency
securities,  and municipal  bonds.  These securities are purchased for resale to
customers,  which include individuals,  corporations,  foundations and financial
institutions.  BOK Financial will also take trading  positions in U.S.  Treasury
securities,  mortgage-backed  securities,  municipal bonds and financial futures
for its own account.  These positions are taken with the objective of generating
trading profits. Both of these activities involve interest rate risk.

A variety  of  methods  are used to manage  the  interest  rate risk of  trading
activities.  These  methods  include  daily  marking of all  positions to market
value,  independent  verification of inventory pricing,  and position limits for
each trading activity.  Hedges in either the futures or cash markets may be used
to reduce the risk associated with some trading programs.

Management  uses a Value at Risk ("VAR")  methodology to measure the market risk
inherent in its trading  activities.  VAR is  calculated  based upon  historical
simulations  over the past five years  using a variance /  covariance  matrix of
interest rate changes.  It represents an amount of market loss that is likely to
be exceeded only one out of every 100 two-week  periods.  Trading  positions are
managed within guidelines  approved by the Board of Directors.  These guidelines
limit the VAR to $1.8 million.  At June 30, 2008, the VAR was $1.2 million.  The
greatest value at risk during the second quarter of 2008 was $1.8 million.

 34

Controls and Procedures

As required by Rule 13a-15(b),  BOK Financial's management,  including the Chief
Executive Officer and Chief Financial Officer, conducted an evaluation as of the
end of the period covered by their report, of the effectiveness of the company's
disclosure  controls and  procedures as defined in Exchange Act Rule  13a-15(e).
Based on that  evaluation,  the Chief  Executive  Officer  and  Chief  Financial
Officer concluded that the disclosure  controls and procedures were effective as
of the end of the period covered by this report.  As required by Rule 13a-15(d),
BOK  Financial's  management,  including the Chief  Executive  Officer and Chief
Financial  Officer,  also  conducted an  evaluation  of the  company's  internal
controls  over  financial  reporting to determine  whether any changes  occurred
during the quarter covered by this report that have materially affected,  or are
reasonably  likely to materially  affect,  the company's  internal controls over
financial  reporting.  Based on that  evaluation,  there has been no such change
during the quarter covered by this report.


Forward-Looking Statements

This report contains  forward-looking  statements that are based on management's
beliefs, assumptions, current expectations, estimates, and projections about BOK
Financial,  the financial  services  industry and the economy in general.  Words
such as "anticipates," "believes," "estimates," "expects," "forecasts," "plans,"
"projects,"  variations  of such words and similar  expressions  are intended to
identify such forward-looking  statements.  Management judgments relating to and
discussion of the provision and reserve for loan losses involve  judgments as to
expected events and are inherently forward-looking statements.  Assessments that
BOK Financial's  acquisitions  and other growth endeavors will be profitable are
necessary statements of belief as to the outcome of future events, based in part
on  information  provided by others  that BOK  Financial  has not  independently
verified.  These statements are not guarantees of future performance and involve
certain risks,  uncertainties and assumptions that are difficult to predict with
regard to timing, extent, likelihood and degree of occurrence. Therefore, actual
results and outcomes may materially differ from what is expressed,  implied,  or
forecasted in such  forward-looking  statements.  Internal and external  factors
that might  cause such a  difference  include,  but are not  limited to: (1) the
ability to fully realize  expected cost savings from mergers within the expected
time frames, (2) the ability of other companies on which BOK Financial relies to
provide  goods and  services  in a timely and  accurate  manner,  (3) changes in
interest  rates and  interest  rate  relationships,  (4) demand for products and
services,  (5) the  degree of  competition  by  traditional  and  nontraditional
competitors,  (6) changes in banking regulations,  tax laws, prices, levies, and
assessments, (7) the impact of technological advances and (8) trends in customer
behavior  as well as  their  ability  to  repay  loans.  BOK  Financial  and its
affiliates undertake no obligation to update, amend, or clarify  forward-looking
statements, whether as a result of new information, future events or otherwise.

 35


------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Consolidated Statements of Earnings (Unaudited)
(In Thousands Except Share and Per Share Data)
                                                                 Three Months Ended                     Six Months Ended
                                                                      June 30,                               June 30,
                                                               2008             2007                2008                2007
                                                            ----------- --- -------------- ---- -------------- ---- --------------
Interest Revenue
                                                                                                    
Loans                                                    $    180,177    $    224,215        $     379,561      $      437,040
Taxable securities                                             75,959          60,223              148,014             117,817
Tax-exempt securities                                           2,656           2,922                5,341               5,950
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
   Total securities                                            78,615          63,145              153,355             123,767
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Trading securities                                                939             401                2,016                 865
Funds sold and resell agreements                                  355             924                1,195               1,589
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
   Total interest revenue                                     260,086         288,685              536,127             563,261
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Interest Expense
Deposits                                                       66,114         102,059              154,261             199,931
Borrowed funds                                                 29,212          44,889               64,579              87,552
Subordinated debentures                                         5,821           6,824               11,220              12,027
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
   Total interest expense                                     101,147         153,772              230,060             299,510
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Net Interest Revenue                                          158,939         134,913              306,067             263,751
Provision for Credit Losses                                    59,310           7,820               76,881              14,320
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Net Interest Revenue After Provision for Credit Losses         99,629         127,093              229,186             249,431
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Other Operating Revenue
Brokerage and trading revenue                                 (35,462)         13,317              (11,549)             26,599
Transaction card revenue                                       25,786          22,917               49,344              43,101
Trust fees and commissions                                     20,940          19,458               41,736              38,453
Deposit service charges and fees                               30,199          26,797               57,885              51,395
Mortgage banking revenue                                        7,198           4,034               14,415               9,554
Bank-owned life insurance                                       2,658           2,525                5,170               4,924
Margin asset fees                                               4,460             969                6,427               1,727
Other revenue                                                   7,824           6,947               14,039              12,798
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Total fees and commissions                                     63,603          96,964              177,467             188,551
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Gain (loss) on sales of assets                                    216            (348)                 181                 346
Loss on securities, net                                        (5,242)         (6,262)                (622)             (6,825)
Loss on derivatives, net                                       (2,961)           (183)                (848)               (112)
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Total other operating revenue                                  55,616          90,171              176,178             181,960
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Other Operating Expense
Personnel                                                      89,597          80,054              177,703             158,382
Business promotion                                              5,777           5,391               10,416               9,961
Professional fees and services                                  6,973           5,963               12,621              10,837
Net occupancy and equipment                                    15,100          13,860               30,161              27,066
Insurance                                                       2,626             693                6,336               1,415
Data processing and communications                             19,523          18,402               38,416              35,376
Printing, postage and supplies                                  4,156           4,179                8,575               8,148
Net losses and operating expenses of repossessed assets          (229)            192                  149                 399
Amortization of intangible assets                               1,885           1,443                3,810               2,579
Mortgage banking costs                                          6,054           2,485               11,734               5,009
Change in fair value of mortgage servicing rights                 767          (5,061)               2,529              (3,897)
Visa retrospective responsibility obligation                        -               -               (2,767)                  -
Other expense                                                   7,039           6,530               12,989              10,967
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Total other operating expense                                 159,268         134,131              312,672             266,242
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Income (Loss) Before Taxes                                     (4,023)         83,133               92,692             165,149
Federal and state income tax                                   (2,862)         29,270               31,588              58,493
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Net Income (Loss)                                        $     (1,161)   $     53,863        $      61,104       $     106,656
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------

Earnings Per Share:
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
   Basic                                                 $      (0.02)   $       0.80        $        0.91       $        1.59
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
   Diluted                                               $      (0.02)   $       0.80        $        0.90       $        1.58
------------------------------------------------------ ---- ----------- --- -------------- ---- -------------- ---- --------------
Average Shares Used in Computation:
------------------------------------------------------ --- ------------ --- -------------- ---- -------------- ---- --------------
   Basic                                                    67,452,181       67,116,902          67,246,250          67,099,752
------------------------------------------------------ --- ------------ --- -------------- ---- -------------- ---- --------------
   Diluted                                                  67,452,181       67,606,330          67,610,014          67,589,146
------------------------------------------------------ --- ------------ --- -------------- ---- -------------- ---- --------------
Dividends Declared per Share                            $        0.225   $       0.20       $         0.425      $        0.35
------------------------------------------------------ --- ------------ --- -------------- ---- -------------- ---- --------------
See accompanying notes to consolidated financial statements.


 36


--------------------------------------------------------------------------------------------------------------------
Consolidated Balance Sheets
(In Thousands Except Share Data)
                                                                    June 30,       December 31,         June 30,
                                                                      2008             2007               2007
                                                                  --------------------------------------------------
                                                                   (Unaudited)     (Footnote 1)        (Unaudited)
Assets
                                                                                          
Cash and due from banks                                        $      712,324    $      717,259    $      596,827
Funds sold and resell agreements                                       52,005           173,154            50,635
Trading securities                                                     62,532            45,724            30,977
Securities:
  Available for sale                                                5,439,524         5,323,001         4,699,735
  Available for sale securities pledged to creditors                  487,078           327,539           339,231
  Investment (fair value:  June 30, 2008 - $242,828;
    December 31, 2007 - $248,788;
    June 30, 2007 - $257,455)                                         245,754           247,949           265,507
  Mortgage trading securities                                          98,269           154,701           133,967
--------------------------------------------------------------------------------------------------------------------
    Total securities                                                6,270,625         6,053,190         5,438,440
--------------------------------------------------------------------------------------------------------------------
Loans                                                              12,637,982        12,017,247        11,699,382
Less reserve for loan losses                                         (154,018)         (126,677)         (119,759)
--------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                                            12,483,964        11,890,570        11,579,623
--------------------------------------------------------------------------------------------------------------------
Premises and equipment, net                                           266,435           258,786           241,579
Accrued revenue receivable                                            159,066           138,243           160,595
Intangible assets, net                                                365,060           368,353           377,957
Mortgage servicing rights, net                                         72,103            70,009            74,067
Real estate and other repossessed assets                               21,025             9,475             7,664
Bankers' acceptances                                                   16,031             1,780            31,702
Derivative contracts                                                1,380,876           502,446           264,845
Cash surrender value of bank-owned life insurance                     231,527           229,540           224,250
Receivable on unsettled securities trades                              39,052            10,071                 -
Other assets                                                          303,312           199,101           202,075
--------------------------------------------------------------------------------------------------------------------
         Total assets                                          $   22,435,937    $   20,667,701    $   19,281,236
--------------------------------------------------------------------------------------------------------------------

Liabilities and Shareholders' Equity
Noninterest-bearing demand deposits                            $    1,951,939    $    1,875,946    $    1,701,756
Interest-bearing deposits:
  Transaction                                                       7,650,255         7,096,339         6,508,677
  Savings                                                             162,138           156,368           207,251
  Time (includes $103,678 at fair value at June 30, 2008)           4,361,384         4,330,638         4,744,570
--------------------------------------------------------------------------------------------------------------------
  Total deposits                                                   14,125,716        13,459,291        13,162,254
--------------------------------------------------------------------------------------------------------------------
Funds purchased and repurchase agreements                           3,101,425         3,225,131         2,317,846
Other borrowings                                                    2,153,853         1,027,564           888,362
Subordinated debentures                                               398,340           398,273           547,896
Accrued interest, taxes and expense                                    81,507           124,029           104,224
Bankers' acceptances                                                   16,031             1,780            31,702
Due on unsettled security transactions                                      -                 -            71,838
Derivative contracts                                                  456,379           341,677           217,140
Other liabilities                                                     160,310           154,572           144,066
--------------------------------------------------------------------------------------------------------------------
         Total liabilities                                         20,493,561        18,732,317        17,485,328
--------------------------------------------------------------------------------------------------------------------
Shareholders' equity:
Common stock ($.00006 par value; 2,500,000,000
  shares authorized; shares issued and outstanding:
  June 30, 2008 - 69,811,531; December 31, 2007
  -  69,465,154; June 30, 2007 - 69,025,829)                                4                 4                 4
Capital surplus                                                       738,403           722,088           703,683
Retained earnings                                                   1,365,456         1,332,954         1,248,829
Treasury stock (shares at cost:  June 30, 2008 -  2,323,143;
  December 31, 2007 - 2,158,774;
  June 30, 2007 - 1,745,722)                                          (97,109)          (88,428)          (67,081)
Accumulated other comprehensive loss                                  (64,378)          (31,234)          (89,527)
--------------------------------------------------------------------------------------------------------------------
         Total shareholders' equity                                 1,942,376         1,935,384         1,795,908
--------------------------------------------------------------------------------------------------------------------
         Total liabilities and shareholders' equity            $   22,435,937    $   20,667,701    $   19,281,236
--------------------------------------------------------------------------------------------------------------------
See accompanying notes to consolidated financial statements.


 37


---------------------------------------------------------------------------------------------------------
Consolidated Statements of Changes in
Shareholders' Equity (Unaudited)
(In Thousands)
                                          Accumulated
                                            Other
                           Common Stock Comprehensive  Capital  Retained    Treasury Stock
                        -----------------                                  --------------------
                         Shares   Amount     Loss      Surplus  Earnings   Shares    Amount      Total
                       ----------------------------------------------------------------------------------
Balances at
                                                                
  December 31, 2006      68,705     $  4  $ (73,444) $688,861 $1,166,994   1,637 $ (61,393)   $1,721,022
Effect of implementing FAS
   157, net of income taxes   -        -          -         -       (679)      -         -         (679)
Effect of
   implementing FIN 48        -        -          -         -       (609)      -         -         (609)
Comprehensive income:
  Net income                  -        -          -         -    106,656       -         -      106,656
  Other comprehensive
     income, net of tax (1)   -        -    (16,083)        -          -       -         -      (16,083)
    tax (1)
                                                                                               ----------
    Comprehensive income                                                                         90,573
                                                                                               ----------
Treasury stock purchase       -        -         -          -          -      44    (2,223)      (2,223)
Exercise of stock options   321        -         -      9,571          -      65    (3,465)       6,106
Tax benefit on
  exercise of stock options   -        -         -      1,423          -       -         -        1,423
Stock-based compensation      -        -         -      3,828          -       -         -        3,828
Cash dividends on
  common stock                -        -         -          -    (23,533)      -         -      (23,533)
---------------------------------------------------------------------------------------------------------

Balances at
    June 30, 2007        69,026   $    4  $ (89,527) $ 703,683 $1,248,829  1,746    $(67,081) $1,795,908
---------------------------------------------------------------------------------------------------------

Balances at
  December 31, 2007      69,465   $    4  $ (31,234) $ 722,088 $1,332,954  2,159    $(88,428) $1,935,384
Effect of
   implementing FAS
   159, net of income taxes   -        -          -          -         62      -           -          62
Comprehensive income:
   Net income                 -        -          -         -      61,104      -           -      61,104
   Other comprehensive
     income, net of tax (1)   -        -    (33,144)        -           -      -           -     (33,144)
     income, net of
                                                                                               -----------
    Comprehensive income                                                                          27,960
                                                                                               -----------
Treasury stock purchase       -        -          -          -         -      91    (4,655)      (4,655)
Exercise of stock options   347        -          -     10,661         -      73    (4,026)       6,635
Tax benefit on exercise
   of stock options           -        -          -      1,132         -       -         -        1,132
Stock-based compensation      -        -          -      4,522         -       -         -        4,522
Cash dividends on
   common stock               -        -          -         -    (28,664)      -         -      (28,664)
---------------------------------------------------------------------------------------------------------

Balances at
    June 30, 2008        69,812   $    4  $ (64,378) $ 738,403 $1,365,456  2,323    $(97,109) $1,942,376
---------------------------------------------------------------------------------------------------------


(1)                                          June 30, 2008      June 30, 2007
                                             -------------      -------------
Changes in other comprehensive loss:
  Unrealized losses on securities             $  (120,274)        $ (32,306)
  Unrealized gains on cash flow hedges                184               658
  Tax benefit (expense) on unrealized gains
    (losses)                                       85,433            11,143
  Reclassification adjustment for losses
    realized and included in net income             5,242             6,825
  Reclassification adjustment for tax
    benefit on realized losses                     (3,729)           (2,403)
                                           ------------------------------------
Net change in other comprehensive loss        $   (33,144)        $ (16,083)
                                           ------------------------------------

See accompanying notes to consolidated financial statements.

 38


---------------------------------------------------------------------------------------------------------------------------
Consolidated Statements of Cash Flows (Unaudited)
(In Thousands)                                                                         Six Months Ended June 30,
                                                                              ---------------------------------------------
                                                                                      2008                      2007
                                                                              ---------------------------------------------
Cash Flows From Operating Activities:
                                                                                                  
Net income                                                                      $     61,104            $    106,656
Adjustments to reconcile net income to net cash provided by operating activities:
  Provision for credit losses                                                         76,881                  14,320
  Change in fair value of mortgage servicing rights                                    2,529                  (3,897)
  Unrealized losses (gains) from derivatives                                          44,815                  (3,332)
  Tax benefit on exercise of stock options                                            (1,132)                 (1,423)
  Change in bank-owned life insurance                                                 (1,987)                (12,020)
  Stock-based compensation                                                             5,306                   4,936
  Depreciation and amortization                                                       26,669                  18,448
  Net (accretion) amortization of securities discounts and premiums                   (7,623)                    474
  Net (gain) loss on sale of assets                                                   (5,537)                    660
  Mortgage loans originated for resale                                              (312,668)               (242,089)
  Proceeds from sale of mortgage loans held for resale                               267,175                 227,007
  Change in trading securities, including mortgage trading securities                 40,269                  35,683
  Change in accrued revenue receivable                                               (20,823)                (53,071)
  Change in other assets                                                             (51,427)                 31,918
  Change in accrued interest, taxes and expense                                      (42,639)                   (528)
  Change in other liabilities                                                           (565)                (53,114)
---------------------------------------------------------------------------------------------------------------------------
Net cash provided by operating activities                                             80,347                  70,628
---------------------------------------------------------------------------------------------------------------------------
Cash Flows From Investing Activities:
  Proceeds from maturities of investment securities                                   33,792                  39,775
  Proceeds from maturities of available for sale securities                          541,500                 595,664
  Purchases of investment securities                                                 (31,737)                (56,670)
  Purchases of available for sale securities                                      (2,335,268)             (1,483,082)
  Proceeds from sales of available for sale securities                             1,470,701                 495,026
  Loans originated or acquired net of principal collected                           (634,746)               (575,558)
  Proceeds from derivative asset contracts                                           (77,563)                (21,391)
  Net change in other investment assets                                                  148                  11,694
  Proceeds from disposition of assets                                                 34,283                  45,593
  Purchases of assets                                                                (40,921)                (37,503)
  Cash and equivalents of subsidiaries and branches acquired and sold, net                 -                 (47,258)
---------------------------------------------------------------------------------------------------------------------------
  Net cash used in investing activities                                           (1,039,811)             (1,033,710)
---------------------------------------------------------------------------------------------------------------------------
Cash Flows From Financing Activities:
  Net change in demand deposits, transaction deposits and savings accounts           635,679                 149,644
  Net change in time deposits                                                         31,347                 124,439
  Net change in other borrowings                                                   1,002,583                 254,606
  Payments on derivative liability contracts                                          86,302                  27,503
  Net change in derivative margin accounts                                          (867,998)                 62,221
  Change in amount receivable (due) on unsettled security transactions               (28,981)                (35,582)
  Issuance of common and treasury stock, net                                           6,635                   6,102
  Issuance of subordinated debenture, net                                                  -                 248,618
  Tax benefit on exercise of stock options                                             1,132                   1,423
  Repurchase of common stock                                                          (4,655)                 (2,223)
  Dividends paid                                                                     (28,664)                (23,533)
---------------------------------------------------------------------------------------------------------------------------
Net cash provided by financing activities                                            833,380                 813,218
---------------------------------------------------------------------------------------------------------------------------
Net decrease in cash and cash equivalents                                           (126,084)               (149,864)
Cash and cash equivalents at beginning of period                                     890,413                 797,326
---------------------------------------------------------------------------------------------------------------------------
Cash and cash equivalents at end of period                                      $    764,329            $    647,462
---------------------------------------------------------------------------------------------------------------------------


Cash paid for interest                                                          $    241,655            $    294,475
---------------------------------------------------------------------------------------------------------------------------
Cash paid for taxes                                                             $     72,561            $     53,590
---------------------------------------------------------------------------------------------------------------------------
Net loans transferred to repossessed real estate and other assets               $     15,426            $      4,082
---------------------------------------------------------------------------------------------------------------------------


See accompanying notes to consolidated financial statements.

 39

Notes to Consolidated Financial Statements (Unaudited)

(1) Accounting Policies

Basis of Presentation

The unaudited  consolidated  financial  statements of BOK Financial  Corporation
("BOK  Financial"  or "the  Company")  have been  prepared  in  accordance  with
accounting  principles for interim financial  information  generally accepted in
the  United  States  and with the  instructions  to Form 10-Q and  Article 10 of
Regulation  S-X.  Accordingly,  they do not include all of the  information  and
footnotes  required by generally  accepted  accounting  principles  for complete
financial statements. In the opinion of management,  all adjustments (consisting
of normal recurring accruals)  considered necessary for a fair presentation have
been included.

The  unaudited   consolidated  financial  statements  include  accounts  of  BOK
Financial  and its  subsidiaries,  principally  Bank of  Oklahoma,  N.A. and its
subsidiaries  ("BOk"),  Bank of Texas,  N.A.,  Bank of Arkansas,  N.A.,  Bank of
Albuquerque,  N.A., Colorado State Bank and Trust, N.A., Bank of Arizona,  N.A.,
Bank of Kansas City, N.A., and BOSC, Inc. Certain prior period amounts have been
reclassified to conform to current period classification.

The financial  information  should be read in conjunction  with BOK  Financial's
2007 Form 10-K filed with the Securities and Exchange Commission, which contains
audited  financial  statements.  Amounts  presented as of December 31, 2007 have
been derived from BOK Financial's 2007 Form 10-K.

Newly Adopted and Pending Accounting Policies

The Company adopted  Statement of Financial  Accounting  Standards No. 159, Fair
Value Option ("FAS 159")  effective  January 1, 2008. FAS 159 provides an option
to measure eligible  financial  assets and financial  liabilities at fair value.
Certain  certificates of deposit that were either currently designated as hedged
or had previously been  designated as hedged,  but no longer met the correlation
requirements  of  Statement  of  Financial  Accounting  Standards  No.  133 were
designated  as being  reported  at fair  value.  Adoption  of FAS 159  increased
opening  retained  earnings  for the  first  quarter  of  2008 by $62  thousand.
Interest  expense on  certificates  of deposit carried at fair value is based on
the instruments' contractual interest rates and outstanding principal balances.

As of January 1, 2008, the Company adopted Financial  Accounting Standards Board
Staff Position FIN 39-1, which permits offsetting of cash collateral against the
fair value of derivative instruments executed with the same counterparty under a
master netting agreement.  The total amount of derivative assets and liabilities
at June 30, 2008 was reduced by $10 million and $990 million,  respectively,  of
cash collateral.

Statement of Financial Accounting Standards No. 160, "Noncontrolling Interest in
Consolidated Financial Statements,  an amendment of ARB Statement No. 51," ("FAS
160") amends Accounting Research Bulletin (ARB) No. 51, "Consolidated  Financial
Statements,"   to  establish   accounting   and  reporting   standards  for  the
non-controlling  interest  in a  subsidiary  and  for the  deconsolidation  of a
subsidiary.  FAS 160 clarifies that a non-controlling  interest in a subsidiary,
which is sometimes referred to as minority interest, is an ownership interest in
the consolidated  entity that should be reported as a component of equity in the
consolidated  financial statements.  Among other requirements,  FAS 160 requires
consolidated  net income to be  reported  at amounts  that  include  the amounts
attributable  to both  the  parent  and the  non-controlling  interest.  It also
requires  disclosure,  on the face of the consolidated income statement,  of the
amounts  of  consolidated  net  income  attributable  to the  parent  and to the
non-controlling  interest.  FAS 160 is  effective  for the Company on January 1,
2009 and is not expected to have a significant impact on the Company's financial
statements.

Statement  of  Financial  Accounting  Standards  No.  161,   "Disclosures  About
Derivative  Instruments and Hedging  Activities,  an Amendment of FASB Statement
No. 133," ("FAS 161") amends and expands the disclosure requirements of FAS 133,
"Accounting  for  Derivative  Instruments  and Hedging  Activities,"  to provide
greater   transparency   about  (i)  how  and  why  an  entity  uses  derivative
instruments,  (ii) how  derivative  instruments  and  related  hedge  items  are
accounted  for under  SFAS 133 and its  related  interpretations,  and (iii) how
derivative  instruments  and related  hedged items affect an entity's  financial
position,  results of operations and cash flows. To meet those  objectives,  FAS
161 requires  qualitative  disclosures about objectives and strategies for using
derivatives,  quantitative  disclosures  about fair  value  amounts of gains and
losses on  derivative  instruments  and  disclosures  about  credit-risk-related
contingent  features in  derivative  agreements.  FAS 161 is  effective  for the
Company on January 1, 2009 and is not expected to have a  significant  impact on
the Company's financial statements.

 40

(2) Fair Value Measurements

Fair value measurements as of June 30, 2008 are as follows (in thousands):



                                                           Quoted Prices    Significant
                                                             in Active         Other         Significant
                                                            Markets for      Observable     Unobservable
                                                  Total      Identical         Inputs          Inputs
                                                            Instruments
                                              ----------- ---------------- --------------- ----------------
   Assets:
                                                                                  
    Trading securities                           $62,532      $  13,829         $48,703
    Available for sale securities              5,926,602         36,936       5,889,666
    Mortgage trading securities                   98,269                         98,269
    Mortgage servicing rights                     72,103                                       72,103  (1)
    Derivative contracts                       1,380,876                      1,344,256        36,620  (2)

   Liabilities:
    Certificates of deposit                      203,580                        203,580
    Derivative contracts                       1,446,425                      1,446,425



     (1) A reconciliation of the beginning and ending fair value of mortgage
         servicing rights and disclosures of significant assumptions used to
         determine fair value are presented in Note 4, Mortgage Banking
         Activities.
     (2) The fair value of derivative contracts with SemGroup, LP was based
         largely on significant unobservable inputs. On July 22, 2008, SemGroup
         and 24 related entities filed for bankruptcy protection. BOK Financial
         assessed a range of values for derivative contracts with SemGroup using
         information currently available, including information provided by a
         nationally recognized financial advisor to SemGroup. The range
         considered both the value of SemGroup as a reorganized entity (going
         concern value) and its liquidation value. The fair value of derivative
         contracts was based on the lower end of the range of values. The fair
         value of derivative contracts with SemGroup totaled $88.2 million at
         March 31, 2008 and $97.3 million at June 30, 2008 based on significant
         observable inputs. At June 30, 2008, the fair value of these contracts
         was written down by $60.7 million to $36.6 million based on significant
         unobservable inputs.

The fair value of assets and liabilities  based on significant  other observable
inputs are  generally  provided to us by  third-party  pricing  services and are
based on one or more of the following:

     o    Quoted prices for similar, but not identical, assets or liabilities in
          active markets;

     o    Quoted  prices for  identical  or  similar  assets or  liabilities  in
          inactive markets;

     o    Inputs other than quoted prices that are observable,  such as interest
          rate  and  yield  curves,   volatilities,   prepayment  speeds,   loss
          severities, credit risks and default rates;

     o    Other inputs derived from or corroborated by observable market inputs.

The underlying  methods used by the third-party  pricing services are considered
in determining the primary inputs used to determine fair values.

No significant  fair value  measurements  of  significant  assets or liabilities
measured  on a  non-recurring  basis  were made  during  the first half of 2008.
Assets measured on a non-recurring basis include pension plan assets,  which are
based on  quoted  prices in  active  markets  for  identical  instruments,  real
property and other assets  acquired to satisfy loans,  which are based primarily
on  comparisons of completed  sales of similar  assets,  and goodwill,  which is
based on significant unobservable inputs.

Certain  certificates  of deposit  were  designated  as carried at fair value as
permitted by FAS 159. These certificates have been converted from fixed interest
rates to variable  interest  rates based on LIBOR with interest rate swaps.  The
fair value election for these liabilities  better represents the economic effect
of these  instruments  on the  Company.  At June 30,  2008,  the fair  value and
contractual  principal  amount of these  certificates  was $204 million and $205
million, respectively. Change in the fair value of these certificates of deposit
resulted in an unrealized  gain during the second quarter and first half of 2008
of $2.2  million  and $601  thousand,  respectively,  which is  included in Gain
(Loss) on Derivatives, net on the Consolidated Statement of Earnings.

 41

(3) Derivatives

The fair  values of  derivative  contracts  at June 30,  2008 are as follows (in
thousands):

                                                 Assets       Liabilities
                                              ----------- --- ------------
   Customer Risk Management Programs:
         Interest rate contracts                 $73,168         $73,296
         Energy contracts                      1,281,937       1,337,368
         Agriculture contracts                    12,054          11,949
         Foreign exchange contracts               17,994          17,994
         CD options                                4,163           4,163
--------------------------------------------- ----------- --- ------------
   Fair value before cash collateral           1,389,316       1,444,770
       Less:  cash collateral                    (10,000)       (990,046)
--------------------------------------------- ----------- --- ------------
     Total Customer Derivatives                1,379,316         454,724

   Interest Rate Risk Management Programs          1,560           1,655
--------------------------------------------- ----------- --- ------------
     Total Derivative Contracts               $1,380,876        $456,379
--------------------------------------------- ----------- --- ------------


As of January 1, 2008, the Company adopted Financial  Accounting Standards Board
Staff Position FIN 39-1, which permits offsetting of cash collateral against the
fair value of derivative instruments executed with the same counterparty under a
master netting agreement.  The total amount of derivative assets and liabilities
at June 30, 2008 were reduced by $10 million and $990 million,  respectively, of
cash collateral.

 42

(4) Mortgage Banking Activities

At June 30, 2008,  BOK  Financial  owned the rights to service  58,021  mortgage
loans with  outstanding  principal  balances  of $5.7  billion,  including  $648
million  serviced  for  affiliates.  The  weighted  average  interest  rate  and
remaining term was 6.15% and 281 months, respectively.

For the three and six  months  ended June 30,  2008,  mortgage  banking  revenue
includes  servicing fee income of $4.3 million and $8.6  million,  respectively.
For the three and six  months  ended June 30,  2007,  mortgage  banking  revenue
includes servicing fee income of $4.3 million and $8.5 million, respectively.

Activity  in  capitalized   mortgage  servicing  rights  and  related  valuation
allowance  during  the  six  months  ending  June  30,  2008 is as  follows  (in
thousands):


                                               Capitalized Mortgage Servicing Rights
                                             ------------------------------------------
                                                Purchased     Originated      Total
                                             --------------- ------------ -------------
                                                                 
Balance at December 31, 2007                 $    13,906   $    56,103   $    70,009
Additions, net                                         -        10,314        10,314
Change in fair value due to loan runoff           (1,174)       (4,517)       (5,691)
Change in fair value due to market changes          (509)       (2,020)       (2,529)
-------------------------------------------- -- ---------- -- ---------- -- -----------
Balance at June 30, 2008                     $    12,223   $    59,880   $    72,103
-------------------------------------------- -- ---------- -- ---------- -- -----------



Fair  value  is  determined  by  discounting   the  projected  net  cash  flows.
Significant assumptions used to determine fair value are:


                                                             June 30, 2008          December 31, 2007
                                                        ---------------------     --------------------

                                                                                    
Discount rate - risk-free rate plus a market premium              9.86%                   10.02%

Prepayment rate - based upon loan interest rate,
  original term and loan type                                 5.3% - 14.0%              6.8% - 15.2%

Loan servicing costs - annually per loan based upon
  loan type                                                     $43 - $73                $43 - $70

Escrow earnings rate - indexed to rates paid on deposit
  accounts with comparable average life                         4.28%                     5.01%



Stratification  of  the  mortgage  loan  servicing   portfolio  and  outstanding
principal  of loans  serviced  by  interest  rate at June 30,  2008  follows (in
thousands):


                                               < 5.51%      5.51% - 6.50%    6.51% - 7.50%    > 7.50%       Total
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------

                                                                                             
Fair value                                 $    13,387       $   41,391        $    14,305     $  3,020     $   72,103
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------

Outstanding principal of loans serviced (1)$   984,400       $2,824,100        $ 1,007,000     $186,500     $5,002,000
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------


(1)  Excludes  outstanding  principal  of $648  million for loans  serviced  for
     affiliates  and $37  million  of  mortgage  loans  for  which  there are no
     capitalized mortgage servicing rights.

 43

(5)  Disposal of Available for Sale Securities

Sales of available for sale  securities  resulted in gains and losses as follows
(in thousands):

                                            Six Months Ended June 30,
                                      -------------------------------------
                                          2008                   2007
                                      --------------        ----------------
Proceeds                           $    1,470,701        $      495,026
Gross realized gains                        8,507                 1,015
Gross realized losses                      (5,284)               (2,412)
Related federal and state income
   tax expense (benefit)                    1,098                  (495)


(6) Employee Benefits

BOK Financial has sponsored a defined benefit Pension Plan for all employees who
satisfied  certain age and service  requirements.  Pension  Plan  benefits  were
curtailed as of April 1, 2006. The Company  recognized no periodic  pension cost
and made no Pension Plan contributions during the six months ended June 30, 2008
and June 30, 2007.

Management  has been advised that no minimum  contribution  will be required for
2008. The maximum allowable contribution for 2008 has not yet been determined.


(7) Shareholders' Equity

On July 29, 2008, the Board of Directors of BOK Financial Corporation approved a
$0.225 per share quarterly common stock dividend. The quarterly dividend will be
payable on or about  August  29,  2008 to  shareholders  of record on August 15,
2008.

Dividends  declared  during the three and six month  periods ended June 30, 2008
were  $0.225 per share and $0.425 per share,  respectively.  Dividends  declared
during the three and six month  periods ended June 30, 2007 were $0.20 per share
and $0.35 per share, respectively.

 44

(8)  Earnings Per Share

The following table presents the computation of basic and diluted earnings per
share (dollars in thousands, except share data):


                                                              Three Months Ended         Six Months Ended
                                                          -----------------------------------------------------
                                                            June 30,     June 30,     June 30,     June 30,
                                                               2008         2007        2008          2007
                                                          -----------------------------------------------------
Numerator:
                                                                                      
   Net income (loss)                                        $  (1,161)   $  53,863    $  61,104   $  106,656
---------------------------------------------------------------------------------------------------------------
Denominator:
   Denominator for basic earnings per share - weighted
     average shares                                        67,452,181   67,116,902   67,246,250   67,099,752
   Effect of dilutive potential common shares:
     Employee stock compensation plans (1)                          -      489,428      363,764      489,394
---------------------------------------------------------------------------------------------------------------

Denominator for diluted earnings per share - adjusted
   weighted average shares and assumed conversions         67,452,181   67,606,330   67,610,014   67,589,146
---------------------------------------------------------------------------------------------------------------
Basic earnings (loss) per share                              $  (0.02)     $  0.80      $  0.91      $  1.59
---------------------------------------------------------------------------------------------------------------
Diluted earnings (loss) per share                            $  (0.02)     $  0.80      $  0.90      $  1.58
---------------------------------------------------------------------------------------------------------------

(1) Excludes employee stock options with exercise
    prices greater than current market price.                       -      850,926      278,812      811,184



(9)  Reportable Segments

Reportable segments  reconciliation to the Consolidated Financial Statements for
the six months ended June 30, 2008 is as follows (in thousands):


                                                 Net            Other            Other
                                               Interest        Operating       Operating       Net Income        Average
                                                Revenue       Revenue(1)        Expense                          Assets
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                            
Total reportable segments                  $      266,711  $      173,291  $      303,639   $      56,660  $   22,811,767
Unallocated items:
   Tax-equivalent adjustment                        4,238               -               -           4,238               -
   Funds management and other                      35,118           4,357           9,033             206      (1,651,616)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      306,067  $      177,648  $      312,672   $      61,104  $   21,160,151
                                              ============ == ============ == ============= == =========== == ==============


(1) Excluding financial instruments gains/(losses).

Reportable segments  reconciliation to the Consolidated Financial Statements for
the three months ended June 30, 2008 is as follows (in thousands):


                                                  Net            Other           Other            Net
                                               Interest        Operating       Operating         Income          Average
                                                Revenue       Revenue(1)        Expense          (Loss)          Assets
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                            
Total reportable segments                  $      132,287  $       61,424  $      153,854   $     (1,654)  $   23,413,047
Unallocated items:
   Tax-equivalent adjustment                        2,084               -               -           2,084               -
   Funds management and other                      24,568           2,395           5,414         (1,591)      (1,804,747)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      158,939  $       63,819  $      159,268   $     (1,161)  $   21,608,300
                                              ============ == ============ == ============= == =========== == ==============


(1) Excluding financial instruments gains/(losses).

 45

Reportable segments  reconciliation to the Consolidated Financial Statements for
the six months ended June 30, 2007 is as follows (in thousands):


                                                 Net            Other           Other
                                               Interest        Operating       Operating       Net Income        Average
                                                Revenue       Revenue(1)        Expense                          Assets
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                            
Total reportable segments                  $      272,277  $      190,650  $      256,075   $     118,871  $   19,366,204
Unallocated items:
   Tax-equivalent adjustment                        4,154               -               -           4,154               -
   Funds management and other                     (12,680)         (1,753)         10,167        (16,369)      (1,081,888)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      263,751  $      188,897  $      266,242   $     106,656  $   18,284,316
                                              ============ == ============ == ============= == =========== == ==============


(1) Excluding financial instruments gains/(losses).


Reportable segments  reconciliation to the Consolidated Financial Statements for
the three months ended June 30, 2007 is as follows (in thousands):


                                                  Net           Other            Other
                                               Interest        Operating       Operating       Net Income        Average
                                                Revenue       Revenue(1)        Expense                          Assets
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                            
Total reportable segments                  $      137,892  $       99,578  $      130,146   $      59,244  $   19,631,701
Unallocated items:
   Tax-equivalent adjustment                        2,069               -               -           2,069               -
   Funds management and other                      (5,048)         (2,962)          3,985         (7,450)      (1,073,631)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      134,913  $       96,616  $      134,131   $      53,863  $   18,558,070
                                              ============ == ============ == ============= == =========== == ==============


(1) Excluding financial instruments gains/(losses).


(10)  Contingent Liabilities

In September 2006, BISYS settled the SEC's two-year  investigation of BISYS Fund
Services Ohio, Inc. ("BISYS") marketing assistance  agreements with 27 different
families of mutual  funds,  including a BISYS  marketing  arrangement  with AXIA
which had been  terminated  effective  January 1, 2004.  In the SEC  settlement,
BISYS  consented  to an  order  in  which  the SEC  determined  that  BISYS  had
"willfully  aided and  abetted and  caused"  the 27  investment  advisors to (i)
violate  provisions  of the  Investment  Advisors  Act  of  1940  that  prohibit
fraudulent  conduct;  (ii) violate  provisions of the 1940 Act that prohibit the
making of any untrue  statement of a material fact in a  registration  statement
filed by the mutual fund with the SEC, and (iii) violate  provisions of the 1940
Act that require the disclosure and inclusion of all  distribution  arrangements
and expenses in the fund's 12b-1 fee plan ("the SEC BYSIS Order").  AXIA was one
of the 27 advisors and the AP Funds one of the 27 mutual fund  families to which
the SEC  referred in its BISYS  Order.  On October 10,  2006,  the  Examinations
Division of the  Securities  and Exchange  Commission  (the "SEC")  conducted an
examination of AXIA. The  examination  was concluded in July 2007 with no action
taken by the  Examinations  Division.  In August  2007,  AXIA settled all claims
relating to the BISYS marketing  arrangements with the AP Funds for $2.2 million
and the AP Funds regard the matter as fully  concluded.  The settlement with the
AP Funds is not binding on the SEC.

On April 7, 2008,  AXIA and its parent,  BOK,  received a Wells  notice from the
regional  office  of  the  SEC in Los  Angeles  indicating  that  the  staff  is
considering  recommending  that the SEC bring a civil injunctive  action against
AXIA and BOK for  violations  of Section  17(a) of the  Securities  Act of 1955,
Section 10(b) of the Securities Exchange Act of 1934, Sections 206(1) and (2) of
the  Investment  Advisors  Act of 1940,  and  Sections  12(b)  and  34(b) of the
Investment  Company Act of 1940. BOK and AXIA have been  cooperating  fully with
the SEC in connection  with these matters that arose prior to December 31, 2003.
BOK and AXIA are not bound by the SEC  BISYS  Order  and  disagree  with the SEC
position as it relates to BOK and AXIA. On May 27, 2008,  BOK and AXIA responded
to the Wells notice  denying the SEC  position.  On June 26, 2008,  BOK and AXIA
representatives  met with SEC Staff.  Nothing  further  has  occurred as of this
time.

 46

In the ordinary  course of business,  BOK  Financial  and its  subsidiaries  are
subject to legal actions and  complaints.  Management  believes,  based upon the
opinion of counsel,  that the actions and liability or loss,  if any,  resulting
from  the  final  outcomes  of the  proceedings,  will  not be  material  in the
aggregate.

During  the  fourth  quarter  of 2007,  Visa  announced  that it had  recognized
liabilities  related to antitrust  litigation with American Express and Discover
and that it was subject to other litigation.  As a member of Visa, BOK Financial
is obligated for a proportionate  share of losses incurred by Visa. A contingent
liability  was  recognized  for  the  Company's   share  of  Visa's   litigation
liabilities.

During the first quarter of 2008, Visa completed its initial public offering and
funded a $3.0 billion escrow account for litigation  claims  including claims by
American  Express and Discover.  BOK Financial  recognized a receivable  for its
proportionate  share  of  this  escrow  account,  which  equals  the  contingent
liability previously recognized.

In addition,  during the first  quarter of 2008 BOK Financial  received  410,562
Visa Class B shares.  A partial  redemption  of Class B shares was completed and
the  Company  received  $6.8  million in cash in exchange  for  158,725  Class B
shares.  The remaining  251,837 Class B shares are convertible into Visa Class A
shares at the later of three  years  after  the date of  Visa's  initial  public
offering or the final settlement of all covered litigation. The current exchange
rate is approximately  0.71 Class A share for each Class B share.  However,  the
Company's  Class B shares may be diluted in the future if the escrow fund is not
adequate to cover future covered  litigation costs.  Therefore,  under currently
issued accounting  guidance no value has been currently  assigned to the Class B
shares and no value may be assigned  until the Class B shares are converted into
a known number of Class A shares.


(11) Federal and State Income Taxes

The  reconciliations of income (loss)  attributable to continuing  operations at
the U.S.  federal  statutory  tax rate to income tax  expense are as follows (in
thousands):

                                 Three Months Ended      Six Months Ended
                                      June 30,               June 30,
                              ------------------------------------------------
                                  2008        2007        2008       2007
                              ------------------------------------------------
 Amount:
    Federal statutory tax      $  (1,408)  $  29,097   $  32,442   $  57,802
    Tax exempt revenue            (1,113)     (1,037)     (2,225)     (2,080)
    Effect of state income
      taxes, net of federal          (78)      1,728       2,438       3,456
      benefit
    Utilization of tax credits      (296)       (290)       (592)       (580)
    Bank-owned life insurance       (875)       (841)     (1,750)     (1,668)
    Other, net                       908         613       1,275       1,563
  -----------------------------------------------------------------------------
      Total                    $  (2,862)  $  29,270   $  31,588   $  58,493
 -----------------------------------------------------------------------------


                                 Three Months Ended      Six Months Ended
                                      June 30,               June 30,
                               -----------------------------------------------
                                  2008        2007        2008       2007
                               -----------------------------------------------
 Percent of pretax income:
    Federal statutory tax           35%        35%          35%        35%
    Tax exempt revenue              28         (1)          (2)        (1)
    Effect of state income
      taxes, net of federal          2          1            3          1
      benefit
    Utilization of tax credits       7          -           (1)         -
    Bank-owned life insurance       22         (1)          (2)        (1)
    Other, net                     (23)         1            1          1
 -----------------------------------------------------------------------------
      Total                         71%        35%          34%        35%
 -----------------------------------------------------------------------------

 47

(12) Financial Instruments with Off-Balance Sheet Risk

BOK Financial is a party to financial instruments with off-balance-sheet risk in
the normal course of business to meet the  financing  needs of its customers and
to manage interest rate risk. Those financial  instruments  involve,  to varying
degrees,  elements  of credit  risk in excess of the  amount  recognized  in BOK
Financial's Consolidated Balance Sheets. Exposure to credit loss in the event of
nonperformance by the other party to the financial instrument for commitments to
extend  credit and  standby  letters of credit is  represented  by the  notional
amount of those instruments.

As of June 30,  2008,  outstanding  commitments  and  letters of credit  were as
follows (in thousands):

                                               June 30,
                                                2008
                                            --------------
Commitments to extend credit                $ 5,600,714
Standby letters of credit                       625,554
Commercial letters of credit                     10,723


(13) Related Parties

On July 21, 2008, the Company entered into a $188 million,  unsecured  revolving
credit agreement with George B. Kaiser, its Chairman and principal  shareholder.
Interest on the  outstanding  balance is based on one-month LIBOR plus 125 basis
points and is payable quarterly.  Additional  interest in the form of a facility
fee is paid  quarterly  on the  unused  portion  of the  commitment  at 25 basis
points.  This agreement has no  restrictive  covenants.

 48


-------------------------------------------------------------------------------------------------------------------------------
Six Month Financial Summary - Unaudited
Consolidated Daily Average Balances, Average Yields and Rates
(Dollars in Thousands, Except Per Share Data)
                                                                             Six Months Ended
                                          -------------------------------------------------------------------------------------
                                                         June 30, 2008                              June 30, 2007
                                          ------------------------------------------    ---------------------------------------
                                              Average         Revenue/     Yield          Average        Revenue/     Yield
                                              Balance        Expense(1)    /Rate          Balance       Expense(1)    /Rate
                                          -------------------------------------------------------------------------------------
Assets
                                                                                                     
  Taxable securities (3)                  $   5,825,599   $   148,014       5.08%     $   4,908,738   $   117,839      4.86%
  Tax-exempt securities (3)                     261,904         8,354       6.40            338,834         9,415      5.90
-------------------------------------------------------------------------------------------------------------------------------
    Total securities (3)                      6,087,503       156,368       5.14          5,247,572       127,254      4.90
-------------------------------------------------------------------------------------------------------------------------------
  Trading securities                             74,507         2,700       7.27             31,264         1,000      6.45
  Funds sold and resell agreements               76,589         1,195       3.13             61,397         1,589      5.22
  Loans (2)                                  12,354,145       380,102       6.17         11,116,881       437,572      7.94
     Less reserve for loan losses               138,277             -       -               115,809             -      -
-------------------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                      12,215,868       380,102       6.24         11,001,072       437,572      8.02
-------------------------------------------------------------------------------------------------------------------------------
    Total earning assets (3)                 18,454,467       540,365       5.87         16,341,305       567,415      7.01
-------------------------------------------------------------------------------------------------------------------------------
  Cash and other assets                       2,705,684                                   1,943,011
-------------------------------------------------------------------------------------------------------------------------------
        Total assets                      $  21,160,151                               $  18,284,316
-------------------------------------------------------------------------------------------------------------------------------

Liabilities And Shareholders' Equity
  Transaction deposits                    $   7,595,724        69,930       1.85%     $   6,257,933        94,609      3.05%
  Savings deposits                              158,375           386       0.49            150,952           741      0.99
  Time deposits                               4,150,654        83,945       4.06          4,463,961       104,581      4.72
-------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing  deposits        11,904,753       154,261       2.60         10,872,846       199,931      3.71
-------------------------------------------------------------------------------------------------------------------------------
  Funds purchased and repurchase
   agreements                                 3,093,946        38,829       2.52          2,633,821        66,694      5.11
  Other borrowings                            1,803,962        25,750       2.86            767,634        20,858      5.48
  Subordinated debentures                       398,288        11,220       5.65            354,657        12,027      6.84
-------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing liabilities      17,200,949       230,060       2.68         14,628,958       299,510      4.13
-------------------------------------------------------------------------------------------------------------------------------
  Demand deposits                             1,286,552                                   1,346,620
  Other liabilities                             687,681                                     542,505
  Shareholders' equity                        1,984,969                                   1,766,233
-------------------------------------------------------------------------------------------------------------------------------
    Total liabilities and  shareholders'
      equity                              $  21,160,151                               $  18,284,316
-------------------------------------------------------------------------------------------------------------------------------
  Tax-Equivalent Net Interest Revenue (3)                     310,305       3.19%                         267,905      2.88%
  Tax-Equivalent Net Interest Revenue
     To Earning Assets (3)                                                  3.37                                       3.31
     Less tax-equivalent adjustment (1)                         4,238                                       4,154
-------------------------------------------------------------------------------------------------------------------------------
Net Interest Revenue                                          306,067                                     263,751
Provision for credit losses                                    76,881                                      14,320
Other operating revenue                                       176,178                                     181,960
Other operating expense                                       312,672                                     266,242
-------------------------------------------------------------------------------------------------------------------------------
Income Before Taxes                                            92,692                                     165,149
Federal and state income tax                                   31,588                                      58,493
-------------------------------------------------------------------------------------------------------------------------------
Net Income                                                $    61,104                                 $   106,656
-------------------------------------------------------------------------------------------------------------------------------
Earnings Per Average Common Share Equivalent:
  Net Income:
    Basic                                                 $      0.91                                 $      1.59
-------------------------------------------------------------------------------------------------------------------------------
    Diluted                                               $      0.90                                 $      1.58
-------------------------------------------------------------------------------------------------------------------------------

(1)  Tax  equivalent  at the  statutory  federal and state rates for the periods
     presented.  The taxable  equivalent  adjustments  shown are for comparative
     purposes.
(2)  The loan averages  included loans on which the accrual of interest has been
     discontinued and are stated net of unearned income.
(3)  Yield calculations exclude security trades that have been recorded on trade
     date with no corresponding interest income.


 49


------------------------------------------------------------------------------------------------------------------------------
Quarterly Financial Summary - Unaudited
Consolidated Daily Average Balances, Average Yields and Rates
(Dollars in Thousands, Except Per Share
Data)
                                                                           Three Months Ended
                                         -------------------------------------------------------------------------------------
                                                        June 30, 2008                               March 31, 2008
                                         ------------------------------------------      -------------------------------------
                                              Average        Revenue/    Yield /         Average        Revenue/    Yield /
                                              Balance       Expense(1)     Rate          Balance       Expense(1)     Rate
                                         -------------------------------------------------------------------------------------
Assets
                                                                                                   
  Taxable securities (3)                  $   6,026,769   $    75,959       5.08%    $   5,624,430   $    72,055       5.11%
  Tax-exempt securities (3)                     259,410         4,165       6.46           264,398         4,189       6.38
------------------------------------------------------------------------------------------------------------------------------
    Total securities (3)                      6,286,179        80,124       5.14         5,888,828        76,244       5.17
------------------------------------------------------------------------------------------------------------------------------
  Trading securities                             74,058         1,267       6.88            74,957         1,433       7.69
  Funds sold and resell agreements               72,444           355       1.97            80,735           840       4.18
  Loans (2)                                  12,527,011       180,424       5.79        12,181,279       199,678       6.59
    Less reserve for loan losses                145,524             -         -            131,709             -         -
------------------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                      12,381,487       180,424       5.86        12,049,570       199,678       6.66
------------------------------------------------------------------------------------------------------------------------------
    Total earning assets (3)                 18,814,168       262,170       5.61        18,094,090       278,195       6.17
------------------------------------------------------------------------------------------------------------------------------
  Cash and other assets                       2,794,132                                  2,402,963
------------------------------------------------------------------------------------------------------------------------------
        Total assets                      $  21,608,300                              $  20,497,053
------------------------------------------------------------------------------------------------------------------------------

Liabilities And Shareholders' Equity
  Transaction deposits                    $   7,717,777   $    27,755       1.45%    $   7,473,670   $    42,175       2.27%
  Savings deposits                              159,798           148       0.37           156,953           238       0.61
  Time deposits                               4,076,167        38,211       3.77         4,225,141        45,734       4.35
------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing deposits         11,953,742        66,114       2.22        11,855,764        88,147       2.99
------------------------------------------------------------------------------------------------------------------------------
  Funds purchased and repurchase
    agreements                                3,126,110        15,180       1.95         3,061,783        23,649       3.11
  Other borrowings                            2,267,076        14,032       2.49         1,340,846        11,718       3.51
  Subordinated debentures                       398,336         5,821       5.88           398,241         5,399       5.45
------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing liabilities      17,745,264       101,147       2.29        16,656,634       128,913       3.11
------------------------------------------------------------------------------------------------------------------------------
  Demand deposits                             1,336,552                                  1,236,552
  Other liabilities                             541,693                                    618,721
  Shareholders' equity                        1,984,791                                  1,985,146
------------------------------------------------------------------------------------------------------------------------------
  Total liabilities and shareholders'
    equity                                $  21,608,300                              $  20,497,053
------------------------------------------------------------------------------------------------------------------------------
  Tax-Equivalent Net Interest Revenue (3)                $    161,023       3.32%                    $    149,282        3.06%
  Tax-Equivalent Net Interest  Revenue
     To Earning Assets (3)                                                  3.44                                         3.31
   Less tax-equivalent adjustment (1)                           2,084                                      2,154
------------------------------------------------------------------------------------------------------------------------------
Net Interest Revenue                                          158,939                                    147,128
Provision for credit losses                                    59,310                                     17,571
Other operating revenue                                        55,616                                    120,562
Other operating expense                                       159,268                                    153,404
------------------------------------------------------------------------------------------------------------------------------
Income (loss) before taxes                                     (4,023)                                    96,715
Federal and state income tax                                   (2,862)                                    34,450
------------------------------------------------------------------------------------------------------------------------------
Net Income (Loss)                                         $    (1,161)                               $    62,265
------------------------------------------------------------------------------------------------------------------------------
Earnings Per Average Common Share Equivalent:
  Net income (loss):
    Basic                                                 $     (0.02)                               $      0.93
------------------------------------------------------------------------------------------------------------------------------
    Diluted                                               $     (0.02)                               $      0.92
------------------------------------------------------------------------------------------------------------------------------


(1)  Tax  equivalent  at the  statutory  federal and state rates for the periods
     presented.  The taxable  equivalent  adjustments  shown are for comparative
     purposes.
(2)  The loan averages  included loans on which the accrual of interest has been
     discontinued and are stated net of unearned income.
(3)  Yield calculations exclude security trades that have been recorded on trade
     date with no corresponding interest income.

 50




-------------------------------------------------------------------------------------------------------------------------



                                                   Three Months Ended
-------------------------------------------------------------------------------------------------------------------------
              December 31, 2007                      September 30, 2007                        June 30, 2007
-------------------------------------------------------------------------------------------------------------------------
      Average       Revenue/    Yield /       Average        Revenue/    Yield /      Average       Revenue/    Yield /
      Balance      Expense(1)     Rate        Balance       Expense(1)    Rate        Balance      Expense(1)    Rate
-------------------------------------------------------------------------------------------------------------------------

                                                                                           
  $   5,633,173  $    68,670       4.86%  $   5,206,482   $    62,531       4.84% $   5,014,231  $    60,176       4.85%
        328,900        5,990       7.19         360,710         5,820       6.44        354,956        4,681       5.81
-------------------------------------------------------------------------------------------------------------------------
      5,962,073       74,660       4.99       5,567,192        68,351       4.95      5,369,187       64,857       4.90
-------------------------------------------------------------------------------------------------------------------------
         29,303          489       6.62          24,413           459       7.46         32,897          481       5.86
         86,948        1,303       5.95         101,281         1,588       6.22         67,057          924       5.53
     11,806,242      223,146       7.50      11,709,638       232,446       7.88     11,338,140      224,492       7.94
        125,996            -         -          123,059             -         -         118,505            -         -
-------------------------------------------------------------------------------------------------------------------------
     11,680,246      223,146       7.58      11,586,579       232,446       7.96     11,219,635      224,492       8.03
-------------------------------------------------------------------------------------------------------------------------
     17,758,570      299,598       6.70      17,279,465       302,844       6.99     16,688,776      290,754       7.00
-------------------------------------------------------------------------------------------------------------------------
      2,224,045                               2,056,910                               1,869,294
-------------------------------------------------------------------------------------------------------------------------
  $  19,982,615                           $  19,336,375                           $  18,558,070
-------------------------------------------------------------------------------------------------------------------------


  $   7,016,136  $    49,358       2.79%  $   6,683,056   $    50,650       3.01% $   6,414,014  $    48,242       3.02%
        160,170          348       0.86         200,362           410       0.81        158,718          377       0.95
      4,544,802       53,613       4.68       4,798,812        58,436       4.83      4,507,053       53,440       4.76
-------------------------------------------------------------------------------------------------------------------------
     11,721,108      103,319       3.50      11,682,230       109,496       3.72     11,079,785      102,059       3.69
-------------------------------------------------------------------------------------------------------------------------

      3,158,153       35,169       4.42       2,603,372        32,484       4.95      2,627,230       33,129       5.06
        936,353       11,611       4.92         880,894        11,789       5.31        866,096       11,760       5.45
        398,109        5,708       5.69         471,458         7,166       6.03        410,883        6,824       6.66
-------------------------------------------------------------------------------------------------------------------------
     16,213,723      155,807       3.81      15,637,954       160,935       4.08     14,983,994      153,772       4.12
-------------------------------------------------------------------------------------------------------------------------
      1,293,419                               1,300,280                               1,295,930
        580,574                                 577,161                                 487,400
      1,894,899                               1,820,980                               1,790,746
-------------------------------------------------------------------------------------------------------------------------
  $  19,982,615                           $  19,336,375                           $  18,558,070
-------------------------------------------------------------------------------------------------------------------------
                 $    143,791      2.89%                  $    141,909      2.91%                $   136,982       2.88%


                                   3.22                                     3.27                                   3.31
                       2,502                                    2,464                                  2,069
-------------------------------------------------------------------------------------------------------------------------
                     141,289                                  139,445                                134,913
                      13,200                                    7,201                                  7,820
                     107,316                                  109,372                                 90,171
                     157,727                                  151,018                                134,131
-------------------------------------------------------------------------------------------------------------------------
                      77,678                                   90,598                                 83,133
                      26,518                                   30,750                                 29,270
-------------------------------------------------------------------------------------------------------------------------
                 $    51,160                              $    59,848                            $    53,863
-------------------------------------------------------------------------------------------------------------------------


                 $      0.76                              $      0.89                            $      0.80
-------------------------------------------------------------------------------------------------------------------------
                 $      0.76                              $      0.89                            $      0.80
-------------------------------------------------------------------------------------------------------------------------


 51


PART II. Other Information

Item 1. Legal Proceedings

See discussion of legal proceedings at footnote 10 to the consolidated financial
statements.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table provides information with respect to purchases made by or on
behalf  of the  Company  or any  "affiliated  purchaser"  (as  defined  in  Rule
10b-18(a)(3) under the Securities Exchange Act of 1934), of the Company's common
stock during the three months ended March 31, 2008.


------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

                          Total Number     Average Price    Total Number of Shares Purchased      Maximum Number of Shares
                            of Shares     Paid per Share      as Part of Publicly Announced      that May Yet Be Purchased
      Period               Purchased (2)                           Plans or Programs (1)               Under the Plans
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------
                                                                                               
April 1, 2008 to               11,618         $59.06                       -                              1,290,927
April 30, 2008
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

May 1, 2008 to May             21,220         $59.40                       -                              1,290,927
31, 2008
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

June 1, 2008 to                 2,895         $54.00                       -                              1,290,927
June 30, 2008
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

Total                          35,733
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

(1)  The Company had a stock  repurchase  plan that was initially  authorized by
     the  Company's  board of  directors on February 24, 1998 and amended on May
     25, 1999.  Under the terms of that plan, the Company could repurchase up to
     800,000  shares of its common stock.  As of March 31, 2005, the Company had
     repurchased  638,642  shares  under  that  plan.  On April  26,  2005,  the
     Company's board of directors  terminated this authorization and replaced it
     with a new stock  repurchase plan  authorizing the Company to repurchase up
     to two million shares of the Company's  common stock.  As of June 30, 2008,
     the Company had repurchased 709,073 shares under the new plan.

(2)  The Company routinely repurchases mature shares from employees to cover the
     exercise  price  and  taxes  in  connection   with  employee  stock  option
     exercises.

 52

Item 4. Submission of Matters to a Vote of Security Holders

Our  Annual  Meeting of  Shareholders  was held on April 29,  2008 (the  "Annual
Meeting").  At the Annual Meeting,  shareholders voted on three matters:  (i) to
fix the number of directors to be elected at eighteen (18) and to elect eighteen
(18) persons as directors for a term of one year or until their  successors have
been  elected and  qualified,  (ii) to approve the  Amended  and  Restated  2003
Executive Incentive Plan, and (iii) to ratify the selection of Ernst & Young LLP
as the  Company's  independent  auditor for the fiscal year ending  December 31,
2008.  The   shareholders   approved  these  matters  by  the  following  votes,
respectively:

(i) Election of eighteen (18) directors for a term of one year:

                                                             Votes
                                                           Withheld/
                                         Votes For          Against
                                       ---------------- -----------------

              Gregory S. Allen           58,881,316         5,603,901
              C. Fred Ball, Jr.          61,869,319         2,615,898
              Sharon J. Bell             64,365,872           119,345
              Peter C. Boylan III        64,200,721           284,496
              Chester Cadieux III        59,296,607         5,188,610
              Joseph W. Craft III        64,382,600           102,617
              William E. Durrett         64,361,940           123,277
              John W. Gibson             64,457,758            27,459
              David F. Griffin           64,469,262            15,955
              V. Burns Hargis            64,319,913           165,303
              E. Carey Joullian IV       59,299,019         5,186,198
              George B. Kaiser           61,772,014         2,713,202
              Thomas L. Kivisto          58,805,718         5,679,499
              Robert J. LaFortune        64,361,941           123,276
              Stanley A. Lybarger        61,899,839         2,585,377
              Steven J. Malcolm          62,166,183         2,319,034
              Paula Marshall             58,378,455         6,106,762
              E. C. Richards             64,466,665            18,552


                                                                                        Votes
                                                                                      Withheld/        Exceptions /
                                                                    Votes For          Against           Abstain

(ii) Approval of the Amended and Restated 2003 Executive
                                                                                               
       Incentive Plan                                              57,852,637         2,946,537         3,876,212

                                                                                        Votes
                                                                                      Withheld/        Exceptions /
                                                                    Votes For          Against           Abstain

(iii) Ratification of Ernst & Young LLP as the independent
        auditor for the year ending December 31, 2008              64,543,595           122,560             9,232


Item 6. Exhibits

31.1 Certification  of Chief  Executive  Officer  Pursuant to Section 302 of the
     Sarbanes-Oxley Act of 2002

31.2 Certification  of Chief  Financial  Officer  Pursuant to Section 302 of the
     Sarbanes-Oxley Act of 2002

32   Certification  of Chief  Executive  Officer  and  Chief  Financial  Officer
     Pursuant to 18 U.S.C.  Section 1350, as Adopted  Pursuant to Section 906 of
     the Sarbanes-Oxley Act of 2002


Items 1A, 3 and 5 are not applicable and have been omitted.



                                   Signatures

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                                 BOK FINANCIAL CORPORATION
                                                 (Registrant)



Date:         August 8, 2008                     /s/ Steven E. Nell
        -------------------------------         -------------------------------
                                                Steven E. Nell
                                                Executive Vice President and
                                                Chief Financial Officer


                                                 /s/ John C. Morrow
                                                 ------------------------------
                                                 John C. Morrow
                                                 Senior Vice President and
                                                 Chief Accounting Officer