Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
MITCHELL JAMES M
2. Issuer Name and Ticker or Trading Symbol
GULFMARK OFFSHORE INC [GLF]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP & CFO
(Last)
(First)
(Middle)

842 W. SAM HOUSTON PARKWAY N., STE 400
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2017
(Street)


HOUSTON, TX 77024
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(check applicable line)

_X_ Form Filed by One Reporting Person
___ Form Filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Class A Common Stock, $0.01 par value 10/06/2017   F(2) 22,429 D $ 0.183 0 D  
Class A Common Stock, $0.01 par value 11/14/2017   J(1)(3) 118,993 (4) D $ (3) 0 D  
Common Stock, $0.01 par value 11/14/2017   J(1)(3) 323 A $ (3) 323 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 2270 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Warrants (rights to buy) $ 100 11/14/2017   J(1)(3) 3,488     (3)   (3) Common Stock
3,488
(3) 3,488
D
 
Warrants (rights to buy) $ 100 11/14/2017   J(5) 3,981     (5)   (5) Common Stock
3,981
(5) 7,469
D
 
Phantom Stock   01/13/2017   A 2,193.75     (6)   (6) Class A Common Stock
2,193.75
$ 1.3 0
D
 
Phantom Stock   01/31/2017   A 1,677.58     (6)   (6) Class A Common Stock
1,677.58
$ 1.7 0
D
 
Phantom Stock   02/15/2017   A 2,037.06     (6)   (6) Class A Common Stock
2,037.06
$ 1.4 0
D
 
Phantom Stock   02/28/2017   A 2,037.06     (6)   (6) Class A Common Stock
2,037.06
$ 1.4 0
D
 
Phantom Stock   03/15/2017   A 7,129.73     (6)   (6) Class A Common Stock
7,129.73
$ 0.4 0
D
 
Phantom Stock   03/31/2017   A 8,148.23     (6)   (6) Class A Common Stock
8,148.23
$ 0.35 0
D
 
Phantom Stock   04/11/2017   J(7)   61.33   (7)   (7) Class A Common Stock
61.33
$ 1.55 0
D
 
Phantom Stock   04/12/2017   A 11,346.17     (6)   (6) Class A Common Stock
11,346.17
$ 0.25 0
D
 
Phantom Stock   04/28/2017   A 8,912.13     (6)   (6) Class A Common Stock
8,912.13
$ 0.32 0
D
 
Phantom Stock   05/31/2017   A 14,259.4     (6)   (6) Class A Common Stock
14,259.4
$ 0.2 0
D
 
Phantom Stock   06/15/2017   A 12,963.09     (6)   (6) Class A Common Stock
12,963.09
$ 0.22 0
D
 
Phantom Stock   07/14/2017   A 15,843.78     (6)   (6) Class A Common Stock
15,843.78
$ 0.18 0
D
 
Phantom Stock   10/13/2017   A 15,843.78     (6)   (6) Class A Common Stock
15,843.78
$ 0.18 0
D
 
Phantom Stock   11/14/2017   J(5) 135,828     (5)   (5) Class A Common Stock
135,828
(5) 0
D
 
Phantom Stock   11/14/2017   J(5) 368     (5)   (5) Common Stock
368
(5) 368
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
MITCHELL JAMES M
842 W. SAM HOUSTON PARKWAY N.
STE 400
HOUSTON, TX 77024
      EVP & CFO  

Signatures

/s/ James M. Mitchell 03/27/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Effective November 14, 2017 (the "Effective Date"), the Issuer emerged from bankruptcy pursuant to a Chapter 11 Plan (the "Plan").
(2) Transaction was a withholding and sale by the Issuer of a portion of vested restricted Class A Common Stock, $0.01 par value per share, of the Issuer outstanding immediately prior to the Effective Date ("Predecessor Common Stock"), to satisfy the reporting person's tax obligations upon the immediate vesting of such shares in anticipation of the Issuer's emergence from bankruptcy.
(3) On the Effective Date, all Predecessor Common Stock was canceled and each holder of such Predecessor Common Stock, including the reporting person, received his pro rata share of (a) new shares of the Issuer's common stock ("Shares"), representing in the aggregate 0.75% of the Shares, or as applicable, certain warrants (the "Reorganized GulfMark Equity"), subject to dilution by the Reorganized GulfMark Equity issued or issuable under the Issuer's management incentive plan (the "MIP") and upon exercise of the New Existing Equity Warrants (as defined below), and (b) warrants for 7.5% of the equity in the reorganized Issuer subject to dilution by the Reorganized GulfMark Equity issued or issuable under the MIP, with an exercise price based on an equity value of $1 billion (the "New Existing Equity Warrants"). Accordingly, the reporting person's 118,993 shares of Predecessor Common Stock were canceled and he received 323 Shares and New Existing Equity Warrants to purchase 3,488 Shares.
(4) The reporting person's Form 4 filed on March 27, 2017 incorrectly stated, in Column 5, due to a transcription error, the total number of shares of Predecessor Common Stock owned by the reporting person. The correct amount of shares that should have been reported was 141,422 shares of Predecessor Common Stock and not 141,922 shares of Predecessor Common Stock.
(5) On the Effective Date and pursuant to the Plan, the reporting person's 135,828 shares of Predecessor Common Stock underlying the Phantom Stock units held in a "Rabbi" trust to hold the stock portion of the reporting person's benefits under the Issuer's Executive Nonqualified Excess Plan (the "Excess Plan") were cancelled in exchange for 368 Shares and 3,981 New Existing Equity Warrants
(6) Phantom Stock units credited under the Excess Plan. Participants are always 100% vested in their contributions to the Excess Plan. Employer contributions vest according to the provisions of the Excess Plan, which is generally based on years of service (20% per year of credited service); participant is 100% vested after 5 years of credited service.
(7) On March 31, 2017, 8148.42 Phantom Stock units were credited to the reporting person under the Excess Plan. However, it was later determined that 61.33 units of those Phantom Stock units previously credited were incorrectly credited to the reporting person's account due to a payroll error. Accordingly, on April 11, 2017, 61.33 Phantom Stock units were deducted from the reporting person's account.

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