CHESAPEAKE ENERGY CORPORATION ANNOUNCES ACCEPTANCE OF
                 8.375% SENIOR NOTES TENDERED FOR EARLY PAYMENT

OKLAHOMA  CITY,  OKLAHOMA,  DECEMBER  13, 2004 - Chesapeake  Energy  Corporation
(NYSE:CHK)  today  announced,  pursuant to its previously  announced cash tender
offer and consent solicitation (the "Offer") for any and all of its $209,815,000
aggregate  principal  amount  outstanding  of 8.375%  Senior Notes due 2008 (the
"Notes")  (CUSIP  #165167AV9),  it has received the consents  necessary to adopt
certain proposed  amendments to the indenture  governing the Notes. The proposed
amendments will eliminate  substantially all of the restrictive covenants of the
indenture.  Adoption of the proposed  amendments requires the consent of holders
of at least a majority  of the  aggregate  principal  amount of the  outstanding
Notes.

Holders who validly tendered their Notes by 5:00 p.m., Eastern Standard Time, on
December 13, 2004 (the "Consent Date"), and consented to the proposed amendments
will receive the total consideration of $1,084.33 per $1,000.00 principal amount
of  Notes  accepted  for  purchase,  consisting  of (i) the  purchase  price  of
$1,074.33 and (ii) the consent payment of $10.00,  plus accrued  interest up to,
but not including, the date of acceptance.  As of the Consent Date, $190,825,000
in  aggregate  principal  amount of the Notes had been  tendered  in the  Offer.
Acceptance  of and payment  for such Notes is expected to occur on December  14,
2004, subject to satisfaction or waiver of certain conditions.  Upon payment for
such Notes, the amendments will become effective.

Notes in the aggregate  principal amount of $18,990,000  remain  outstanding and
subject to the Offer which is  scheduled  to expire at 12:00  midnight,  Eastern
Standard Time, on December 28, 2004,  unless extended (the  "Expiration  Date").
Holders who validly  tender  their Notes after the Consent Date and prior to the
Expiration  Date will receive the  purchase  price of  $1,074.33  per  $1,000.00
principal  amount of Notes  accepted for  purchase.  Payment for Notes  tendered
after the Consent  Date is expected to be on or about  December  29,  2004.  All
holders  whose Notes are  accepted  for payment  will also  receive  accrued and
unpaid interest up to, but not including, the applicable date of payment for the
Notes.

The terms of the Offer are  described  in the  Company's  Offer to Purchase  and
Consent  Solicitation  Statement dated November 30, 2004, copies of which may be
obtained from MacKenzie Partners,  Inc., the information agent for the Offer, at
(800) 322-2885 (US toll free) and (212) 929-5500 (collect).

The Company has engaged  Deutsche Bank  Securities Inc. to act as dealer manager
and  solicitation  agent in connection with the Offer.  Questions  regarding the
Offer may be directed to  Deutsche  Bank  Securities  Inc.,  High Yield  Capital
Markets, at (800) 553-2826 (US toll-free) and (212) 250-7466 (collect).

This  announcement  is not an offer to purchase,  a solicitation  of an offer to
purchase or a solicitation of consent with respect to any securities.  The Offer
was made solely by the Offer to  Purchase  and  Consent  Solicitation  Statement
dated November 30, 2004.

THIS DOCUMENT CONTAINS FORWARD-LOOKING  STATEMENTS WITHIN THE MEANING OF SECTION
27A OF THE SECURITIES ACT OF 1933 AND SECTION 21E OF THE SECURITIES EXCHANGE ACT
OF 1934.  FORWARD-LOOKING  STATEMENTS  INCLUDE  ESTIMATES  AND GIVE OUR  CURRENT
EXPECTATIONS   OR   FORECASTS  OF  FUTURE   EVENTS.   ALTHOUGH  WE  BELIEVE  OUR
FORWARD-LOOKING  STATEMENTS ARE  REASONABLE,  THEY CAN BE AFFECTED BY INACCURATE
ASSUMPTIONS OR BY KNOWN OR UNKNOWN RISKS AND UNCERTAINTIES.

CHESAPEAKE  ENERGY  CORPORATION  IS THE SIXTH  LARGEST  INDEPENDENT  PRODUCER OF
NATURAL GAS IN THE U.S. HEADQUARTERED IN OKLAHOMA CITY, THE COMPANY'S OPERATIONS
ARE FOCUSED ON EXPLORATORY  AND  DEVELOPMENTAL  DRILLING AND PRODUCING  PROPERTY
ACQUISITIONS IN THE MID-CONTINENT,  PERMIAN BASIN, SOUTH TEXAS, TEXAS GULF COAST
AND ARK-LA-TEX  REGIONS OF THE UNITED STATES.  THE COMPANY'S INTERNET ADDRESS IS
WWW.CHKENERGY.COM.