EXHIBIT 99.1


                          CHESAPEAKE ENERGY CORPORATION
     ANNOUNCES 2005 FIRST QUARTER EARNINGS RELEASE DATE AND CONFERENCE CALL

OKLAHOMA  CITY,  OKLAHOMA,  APRIL  11,  2005  -  Chesapeake  Energy  Corporation
(NYSE:CHK)  has scheduled its 2005 first quarter  earnings  release to be issued
after the close of  trading  on the New York Stock  Exchange  on Monday,  May 2,
2005.

A conference call is scheduled for Tuesday  morning,  May 3, 2005 at 9:00 am EDT
to discuss the release.  The telephone  number to access the conference  call is
913.981.5582.  We encourage  those who would like to  participate in the call to
place your calls between 8:50 and 9:00 am EDT.

For  those  unable to  participate  in the  conference  call,  a replay  will be
available  for audio  playback at 12:00 pm EDT on Tuesday,  May 3, 2005 and will
run through midnight  Monday,  May 16, 2005. The number to access the conference
call replay is 719.457.0820; passcode for the replay is 4449787.

The  conference  call will also be  simulcast  live on the  Internet  and can be
accessed by going directly to the Chesapeake  website at  www.chkenergy.com  and
selecting "Conference Calls" under the "Investor Relations" section. The webcast
of the conference call will be available on our website indefinitely.


CHESAPEAKE  ENERGY  CORPORATION  IS THE FOURTH 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 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.