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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                         APRIL 26, 2004 (APRIL 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, OK                        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)


                    INFORMATION TO BE INCLUDED IN THE REPORT

ITEM 7.   FINANCIAL STATEMENTS AND EXHIBITS

    (c)   Exhibits. The following exhibit is filed herewith:

     99   Press Release issued by the Registrant on April 26, 2004.

          Exhibit  99 and the  information  included  in it shall  not be deemed
          "filed" for purposes of Section 18 of the  Securities  Exchange Act of
          1934,as amended (the "Exchange  Act"), or incorporated by reference in
          any  filing  under the  Securities  Act of 1933,  as  amended,  or the
          Exchange  Act,  except  as may be  expressly  set  forth  by  specific
          reference in this Report other than under Item 9 or Item 12 hereof.

ITEM 9.  REGULATION FD DISCLOSURE

         We issued a press release on April 26, 2004, which includes information
regarding our consolidated  results of operations and financial  condition as of
and for the  quarterly  period ended March 31, 2004.  It also  includes  updated
information  on our 2004 outlook.  The text of that press release is attached to
this Report as Exhibit 99 and is incorporated by reference  herein.  In addition
to disclosure of the information in compliance with Regulation FD, the following
information  and the  information in the related  exhibit is also intended to be
furnished  under Item 12 of Form 8-K,  "Disclosure  of Results of Operations and
Financial  Condition," in accordance with the Securities and Exchange Commission
SEC Release No. 33-8126.

     The press release contains  information  concerning financial measures that
we use that may be considered "non-GAAP financial measures" under Securities and
Exchange Commission rules. Specifically,  the press release contains information
concerning  operating cash flow (defined as cash flow from operating  activities
before changes in assets and liabilities), EBITDA adjusted earnings and adjusted
EBITDA,  each of which is reconciled in the press release to cash from operating
activities,  the most  directly  comparable  financial  measures  reported under
generally accepted accounting principles.

         With the  filing  of this  report on Form 8-K and the  issuance  of the
attached press release,  we are also updating our future  outlook,  which can be
found on our  website at  WWW.CHKENERGY.COM.  We caution you that our outlook is
given as of April 26, 2004 based on currently available information, and that we
are not undertaking any obligation to update our estimates as conditions  change
or other information becomes available.

         This information,  including the exhibit 99 attached hereto,  shall not
be deemed "filed" for purposes of Section 18 of the  Securities  Exchange Act of
1934,  as amended (the  "Exchange  Act"),  or  incorporated  by reference in any
filing under the Securities Act of 1933, as amended, or the Exchange Act, except
as may be  expressly  set forth by specific  reference in this Report other than
under Item 9 or Item 12 hereof.


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                                    SIGNATURE


         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.

                                     CHESAPEAKE ENERGY CORPORATION



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

Dated:   April 26, 2004

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