As filed with the Securities and Exchange Commission on October 7, 2003


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                             ______________________


                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(B) OR (G) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                               ___________________


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



              OKLAHOMA                                         73-1395733
(State of incorporation or organization)                    (I.R.S. Employer
                                                            Identification No.)
 6100 NORTH WESTERN AVENUE
  OKLAHOMA CITY, OKLAHOMA                                         73118
(Address of principal executive offices)                        (Zip Code)

                               ___________________


        Securities to be registered pursuant to Section 12(b) of the Act:


TITLE OF EACH CLASS                              NAME OF EACH EXCHANGE ON WHICH
TO BE SO REGISTERED                              EACH CLASS IS TO BE REGISTERED
-------------------                              ------------------------------


6.0% Cumulative Convertible Preferred Stock          New York Stock Exchange



     If this Form relates to the registration of a class of securities  pursuant
to  Section  12(b) of the  Exchange  Act and is  effective  pursuant  to General
Instruction A.(c), check the following box. [X]


     If This Form releats to the registration of a class of securities pursuant
to  Section  12(g) of the  Exchange  Act and is  effective  pursuant  to General
Instruction A.(d) check the following box.  [ ]

Securities Act registration statement file number to which this form relates:N/A

Securities to be registered pursuant to Section 12(g) of the Act: None




ITEM 1.  DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED

         The securities to be registered consist of 6.0% Cumulative  Convertible
Preferred Stock, par value $.01 per share (the "Preferred  Stock") of Chesapeake
Energy  Corporation (the  "Registrant").  The Registrant hereby  incorporates by
reference  herein the  description of the terms,  rights and  preferences of the
Preferred Stock set forth under the caption "Description of the Preferred Stock"
in the Prospectus forming a part of the Registrant's  registration  statement on
Form S-3 (No. 333-104394).  Such Prospectus was filed with the Commission by the
Registrant  pursuant  to Rule  424(b)(3)  under  the  Securities  Act of 1933 on
October 1, 2003.


ITEM 2.  EXHIBITS

         The following exhibits are filed pursuant to the Instruction to Item 2:


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


        1.          Registrant's    Restated   Certificate   of   Incorporation,
                    including  Registrant's  Certificate  of Designation of 6.0%
                    Cumulative Convertible Preferred Stock.  Incorporated herein
                    by  reference  to Exhibit 3.1 to  Registrant's  Registration
                    Statement on Form S-3 (No. 333-104394).

        2.          Registrant's Amended and Restated Bylaws.

                    Rights Agreement dated July 15, 1998 between  Registrant and
        3.          UMB Bank,  N.A.,  as  Rights  Agent.   Incorporated   herein
                    by reference   to  Exhibit  1  to  Registrant's registration
                    statement on Form 8-A filed July 16, 1998.  Amendment  No. 1
                    to Rights  Agreement dated September 11, 1998.  Incorporated
                    herein  by  reference   to  Exhibit  10.3  to   Chesapeake's
                    quarterly   report  on  Form  10-Q  for  the  quarter  ended
                    September 30, 1998.





                                   SIGNATURES

         Pursuant to the  requirements of Section 12 of the Securities  Exchange
Act of 1934, the registrant  has duly caused this  registration  statement to be
signed on its behalf by the undersigned, thereto duly authorized.


                                       CHESAPEAKE ENERGY CORPORATION


                                   By: /s/ Aubrey K. McClendon
                                       ________________________________________
                                       Aubrey K. McClendon
                                       Chairman and Chief Executive Officer


Date:  October 7, 2003