As filed with the Securities and Exchange Commission on August 17, 2004 Registration No. 333-_______ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ---------------------- FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 CHESAPEAKE ENERGY CORPORATION (Exact name of registrant as specified in its charter) OKLAHOMA 73-1395733 (State of Incorporation) (I.R.S. Employer Identification No.) 6100 NORTH WESTERN AVENUE, OKLAHOMA CITY, OKLAHOMA 73118 (Address of principal executive offices) (zip code) CHESAPEAKE ENERGY CORPORATION SAVINGS AND INCENTIVE STOCK BONUS PLAN (Full title of the plans) AUBREY K. MCCLENDON CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER CHESAPEAKE ENERGY CORPORATION 6100 NORTH WESTERN AVENUE OKLAHOMA CITY, OKLAHOMA 73118 (Name and address for agent for service) (405) 848-8000 (Telephone number, including area code, of agent for service) CALCULATION OF REGISTRATION FEE ============================= ================ ================= ==================== ==================== Title of Amount Proposed Proposed Amount of Securities to be Registered to be Maximum Maximum Registration Fee(2) Registered(1) Offering Price Aggregate Per Share(2) Offering Price(2) ----------------------------- ---------------- -------------------------------------- -------------------- Common Stock, $.01 par 1,000,000 $14.23 $14,230,000 $1,803 value per share ============================= ================ ================= ==================== ==================== (1) Pursuant to Rule 416(c), this registration statement also covers an indeterminate amount of interests to be offered or sold pursuant to the plan named above. (2) Calculated pursuant to paragraphs (c) and (h) of Rule 457, based on the average of the high and low prices of the Common Stock of Chesapeake Energy Corporation on the New York Stock Exchange on August 13, 2004. EXPLANATORY NOTE By this registration statement, Chesapeake Energy Corporation is registering an additional 1,000,000 shares of its common stock, $.01 par value, to be offered under the Chesapeake Energy Corporation Savings and Incentive Stock Bonus Plan. Chesapeake has previously filed two registration statements relating to plan interests and 560,000 shares of its common stock offered pursuant to the plan (SEC File Nos. 333-07255 and 333-30324 filed on January 28, 1996 and February 14, 2000, respectively). The contents of these two prior registration statements are incorporated by reference into this registration statement pursuant to General Instruction E of Form S-8. The consents filed with this registration statement are set forth in the Exhibit Index. 2 SIGNATURES THE REGISTRANT. Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma on August 17, 2004. CHESAPEAKE ENERGY CORPORATION By: /S/ AUBREY K. MCCLENDON ---------------------------------- Aubrey K. McClendon Chairman of the Board and Chief Executive Officer Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following persons in the capacities indicated on August 17, 2004. SIGNATURE TITLE /S/ AUBREY K. MCCLENDON Chairman of the Board, Chief Executive ------------------------------------- Officer and Director Aubrey K. McClendon (Principal Executive Officer) /S/ TOM L. WARD President, Chief Operating Officer and ------------------------------------- Director Tom L. Ward /S/ MARCUS C. ROWLAND Executive Vice President and Chief ------------------------------------- Financial Officer Marcus C. Rowland (Principal Financial Officer) /S/ MICHAEL A. JOHNSON Senior Vice President - Accounting ------------------------------------ (Principal Accounting Officer) Michael A. Johnson /S/ FRANK KEATING Director ------------------------------------ Frank Keating /S/ BREENE M. KERR* Director ------------------------------------ Breene M. Kerr /S/ CHARLES T. MAXWELL Director ------------------------------------ Charles T. Maxwell /S/ SHANNON SELF* Director ------------------------------------ Shannon Self /S/ FREDERICK B. WHITTEMORE* Director ------------------------------------- Frederick B. Whittemore *By: /S/ AUBREY K. MCCLENDON ------------------------------ Aubrey K. McClendon Attorney in Fact 3 THE PLAN. Pursuant to the requirements of the Securities Act of 1933, the Plan Administrator has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Oklahoma City, State of Oklahoma, on August 17, 2004. CHESAPEAKE ENERGY CORPORATION SAVINGS AND INCENTIVE STOCK BONUS PLAN By: CHESAPEAKE ENERGY CORPORATION By: /S/ MARTHA A. BURGER ----------------------------- Name: Martha A. Burger Title: Treasurer and Senior Vice President - Human Resources 4 EXHIBIT INDEX Exhibit NUMBER DESCRIPTION ------ ----------- 23.1 Consent of PricewaterhouseCoopers LLP 23.2 Consent of Ryder Scott Company L.P. 23.3 Consent of Lee Keeling and Associates, Inc. 23.4 Consent of Netherland, Sewell & Associates, Inc. 24.1 Power of Attorney 5