Filed Pursuant Rule 424(b)(3) Relating to Form S-3 Registration Statement Nos. 333-04027 and 333-12533 CHESAPEAKE ENERGY CORPORATION Supplement to Prospectus dated September 27, 1996 _____________________ This Supplement to Prospectus dated September 27, 1996 supplements and amends the Selling Shareholders table at page 13 of the Prospectus to reflect the results of certain donations made since the date of the Prospectus. The Prospectus is used in connection with the offering of an aggregate 929,100 shares of the common stock, par value $.10 per share (the "Common Stock"), of Chesapeake Energy Corporation (CHK). The number of shares of Common Stock covered by the Prospectus remains unchanged and, except as set forth below, the Selling Shareholders table set forth in the Prospectus remains unchanged: Common Stock Number of Shares to Selling Beneficially Owned Prior be Offered for Shareholder Address to August 31, 1996 Owner's Account ----------- ------- ------------------------ -------------------- John J. Mack c/o Morgan Stanley 172,250 152,250 Group, Inc. 1585 Broadway New York, NY 10036 CJ Mack Foundation 91 Sunset Lane -- 20,000 Rye, NY 10580 Robert E. Braver 3512 S.E. 15th 12,150 11,650 Edmond, OK 73013 Heritage Hall 1401 N.W. 115th -- 500 School Oklahoma City, OK 73114 This Supplement to Prospectus dated September 27, 1996 relates to Chesapeake Energy Corporation's Registration Statement of Form S-3, No. 333-04027, effective May 22, 1996, and Registration Statement on Form S-3, No. 333-12533, effective September 27, 1996. The date of this Supplement is December 23, 1996.