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Previous: GOTHIC ENERGY CORP, SC 13D/A, 2000-07-05 |
Next: GOTHIC ENERGY CORP, SC 13D/A, EX-99.5, 2000-07-05 |
<PAGE> 1
EXHIBIT 99.4
CUSIP NO. 383482106
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(f) under the Securities Exchange Act of
1934, as amended, the undersigned hereby agree to the joint filing with each
other of the attached statement on Schedule 13D and to all amendments to such
statement and that such statement and all amendments to such statement are made
on behalf of each of them.
IN WITNESS WHEREOF, the undersigned hereby execute this agreement on
June 30, 2000.
Chesapeake Energy Corporation, an Oklahoma
corporation
By /s/Aubrey K. McClendon
----------------------------------------
Aubrey K. McClendon, Chief Executive
Officer
Chesapeake Exploration Limited Partnership,
an Oklahoma limited partnership
By Chesapeake Operating, Inc., an
Oklahoma corporation, as general
partner
By /s/Aubrey K. McClendon
----------------------------------
Aubrey K. McClendon
Chief Executive Officer
Chesapeake Energy Marketing, Inc.,
an Oklahoma corporation
By /s/Aubrey K. McClendon
----------------------------------------
Aubrey K. McClendon, Chief Executive
Officer
Exhibit "99.4"
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