Filed pursuant to Rule 424(b)(3)
                                                     Registration No. 333-76546

                                3,000,000 SHARES

                                       OF

                          CHESAPEAKE ENERGY CORPORATION

                  6.75% Cumulative Convertible Preferred Stock

                     (Liquidation Preference $50 per share)

                                       and

                                  Common Stock,

                           (Par Value $.01 per share)



                           PROSPECTUS SUPPLEMENT NO. 4
                               DATED MAY 21, 2002
                      TO PROSPECTUS DATED JANUARY 30, 2002





     The selling securityholders table on page 27 and 28 of the prospectus is
amended by this supplement no. 4 to read as follows.





                                   Number of                   Number of                                   Number of
                                   Shares of                   Shares of      Number of      Number of     Shares of
                                   Preferred     Number of     Preferred      Shares of      Shares of   Common Stock
                                     Stock       Shares of    Stock to be   Common Stock   Common Stock   to be Owned
                                 Beneficially    Preferred    Owned After   Beneficially       Being         After
                                  Owned Prior   Stock Being   Completion   Owned Prior to     Offered     Completion
NAME                                to the        Offered       of the      the Offering      Hereby        of the
                                   Offering       Hereby       Offering                                    Offering
                                                                                                  

AIG Soundshore Holdings Ltd.....      139,500       139,500             0        905,843        905,843             0
AIG Soundshore Opportunity
Holding Fund Ltd................       76,400        76,400             0        496,103        496,103             0
AIG Soundshore Strategic
Holding Fund Ltd................       46,100        46,100             0        299,350        299,350             0
Alpine Associates...............      100,000       100,000             0        649,350        649,350             0
Alpine Partners, L.P............       15,000        15,000             0         97,403         97,403             0
Argent Classic Convertible
Arbitrage Fund (Bermuda) Ltd....       20,000        20,000             0        129,870        129,870             0
Argent LowLev Convertible
Arbitrage Fund Ltd..............       40,000        40,000             0        259,740        259,740             0
Bear, Stearns & Co. Inc.........        5,000         5,000             0         32,468         32,468             0
BGI Global Investors c/o Forest
Investment Mngt. L.L.C..........        6,200         6,200             0         40,260         40,260             0
Banc of America Securities
LLC.............................      180,000       180,000             0      1,168,830      1,168,830             0
Credit Suisse First Boston
Corporation.....................      128,500       128,500             0        834,415        834,415             0
CSFB Convertible and
Quantitative Strategies.........       50,000        50,000             0        324,675        324,675             0
Fidelity Financial Trust:
Fidelity Convertible Securities
Fund............................      405,000       405,000             0      2,629,868      2,629,868             0
First Union National
Bank............................      295,000       295,000             0      1,915,583      1,915,583             0
FIST - Franklin Convertible
Securities Fund.................       40,000        40,000             0        259,740        259,740             0
Forest Alternative Strategies
II..............................        1,800         1,800             0         11,688         11,688             0
Forest Fulcrum Fund L.L.P.......       20,000        20,000             0        129,870        129,870             0
Forest Global Convertible Fund
Series A-5......................       75,600        75,600             0        490,909        490,909             0
FTIF - Franklin Income Fund.....        1,000         1,000             0          6,494          6,494             0
Franklin Custodian Fund -
Income Fund.....................      270,800       270,800             0      1,758,440      1,758,440             0
FTVIPT - Franklin Income
Securities Fund.................       18,000        18,000             0        116,883        116,883             0
Global Bermuda Limited
Partnership.....................        4,000         4,000             0         25,974         25,974             0
Highbridge International LLC....       10,000        10,000             0         64,935         64,935             0
Jefferies & Co..................        8,000         8,000             0         51,948         51,948             0
KBC Financial Products USA Inc..       17,500        17,500             0        113,636        113,636             0
Lakeshore International Ltd.....       16,000        16,000             0        103,896        103,896             0
Lipper Convertibles, L.P........      150,000       150,000             0        974,025        974,025             0
LLT Limited.....................        6,200         6,200             0         40,260         40,260             0
Lyxor Master Fund...............        2,000         2,000             0         12,987         12,987             0
Navigator Offshore Fund, Ltd....       15,000        15,000             0         97,403         97,403             0
Navigator Partners L.P..........        3,000         3,000             0         19,481         19,481             0
The Northwestern Mutual Life
Insurance Company...............       30,000        30,000             0        194,805        194,805             0
Onex Industrial Partners
Limited.........................        7,250         7,250             0         47,078         47,078             0
Pebble Capital Inc..............        3,000         3,000             0         19,481         19,481             0
Peoples Benefit Life Insurance
Company/TEAMSTERS...............       17,500        17,500             0        113,636        113,636             0
Ramius Capital Group............       10,000        10,000             0         64,935         64,935             0
RBC Capital Services Inc.  c/o
Forest Investment Mngt. LLC.....        1,500         1,500             0          9,740          9,740             0
RCG Halifax Master Fund Ltd.....        5,000         5,000             0         32,468         32,468             0
RCG Latitude Master Fund Ltd....       15,000        15,000             0         97,403         97,403             0
RCG Multi Strategy LP...........       10,000        10,000             0         64,935         64,935             0
Retail Clerks Pension Trust #2..       17,500        17,500             0        113,636        113,636             0
Silvercreek Limited
Partnership.....................        5,000         5,000             0         32,468         32,468             0
Silvercreek II Limited..........        9,750         9,750             0         63,312         63,312             0
Speer, Leeds & Kellogg L.P......       10,000        10,000             0         64,935         64,935             0
Sunrise Partners LLC............      269,000       269,000             0      1,746,752      1,746,752             0
Sylvan (IMA) Ltd. c/o Forest
Investment Mngt. L.L.C..........        7,500         7,500             0         48,701         48,701             0
UBS O'Connoz LLC F/B/O UBS
Global Equity Arbitrage Master
Ltd.............................       70,000        70,000             0        454,545        454,545
White River Securities L.L.C....        5,000         5,000             0         32,468         32,468             0
Yield Strategies Fund I, LP.....        7,500         7,500             0         48,701         48,701             0
Yield Strategies Fund II, LP....        7,500         7,500             0         48,701         48,701             0
Zurich Master Hedge Fund c/o
Forest Investment Mngt. L.L.C...        6,200         6,200             0         40,260         40,260             0

Total                               2,679,800



(1)  The stated amounts, to the extent they describe common stock issuable upon
     conversion of the holder's preferred stock, assume conversion of all of the
     holders' preferred stock at a conversion ratio of 6.4935 shares of our
     common stock per share of preferred stock. This conversion ratio, however,
     will be subject to adjustment as described under "Description of the
     Preferred Stock - Conversion Price Adjustment". As a result, the number of
     shares of our common stock issuable upon conversion of the preferred stock
     and, therefore, attributable to holders of preferred stock, may increase or
     decrease in the future.