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


                                    FORM 8-K

                                 CURRENT REPORT

                         PURSUANT TO SECTION 13 OR 15(D)
                                     OF THE
                         SECURITIES EXCHANGE ACT OF 1934



                DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED)
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                       OCTOBER 27, 2004 (OCTOBER 26, 2004)


                          CHESAPEAKE ENERGY CORPORATION
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             (Exact name of registrant as specified in its charter)


          OKLAHOMA                      1-13726                  73-1395733
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(State or other jurisdiction     (Commission File No.)        (IRS Employer
      of incorporation)                                     Identification No.)


 6100 NORTH WESTERN AVENUE, OKLAHOMA CITY, OKLAHOMA                73118
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    (Address of principal executive offices)                     (Zip Code)


                                 (405) 848-8000
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              (Registrant's telephone number, including area code)


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[_] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.1425)

[_] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[_] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[_] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))



SECTION 8- OTHER EVENTS

ITEM 8.01 - OTHER EVENTS

         On October  26,  2004,  Chesapeake  Energy  Corporation  issued a press
release  announcing an agreement to participate in the oil and gas activities of
Greystone Oil and Gas, L.L.P. This press release is attached as Exhibit 99.1.


ITEM 9.01 - EXHIBITS

(c)      Exhibits

EXHIBIT NO.             DOCUMENT DESCRIPTION
-----------             --------------------

   99.1                 Press Release dated October 26, 2004


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                                   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 hereunto duly authorized.

                                         CHESAPEAKE ENERGY CORPORATION


                                         By:     /S/ AUBREY K. MCCLENDON
                                             ----------------------------------
                                                     Aubrey K. McClendon
                                                  Chairman of the Board and
                                                   Chief Executive Officer

Date:         October 27, 2004


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                                  EXHIBIT INDEX


EXHIBIT NO.             DOCUMENT DESCRIPTION
-----------             --------------------

   99.1                 Press Release dated October 26, 2004

                                       4