1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED) APRIL 17, 2001 (APRIL 16, 2001) -------------------------------------------------------------------------------- CHESAPEAKE ENERGY CORPORATION -------------------------------------------------------------------------------- (Exact name of Registrant as specified in its Charter) OKLAHOMA 1-13726 73-1395733 ------------------------------------------------------------------------------------------------------------------- (State or other jurisdiction (Commission File No.) (IRS Employer Identification No.) of incorporation) 6100 NORTH WESTERN AVENUE, OKLAHOMA CITY, OKLAHOMA 73118 -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) (405) 848-8000 -------------------------------------------------------------------------------- (Registrant's telephone number, including area code) 2 INFORMATION TO BE INCLUDED IN THE REPORT ITEM 5. OTHER EVENTS On April 16, 2001, Chesapeake Energy Corporation issued a press release announcing its updated Outlook, first quarter 2001 earnings release and conference call. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS (c) Exhibits. The following exhibit is filed herewith: 99. Press Release issued by the Registrant on April 16, 2001. 2 3 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. CHESAPEAKE ENERGY CORPORATION BY: /s/ AUBREY K. MCCLENDON ----------------------------------- AUBREY K. MCCLENDON Chairman of the Board and Chief Executive Officer Dated: April 17, 2001 3 4 INDEX OF EXHIBITS EXHIBIT NUMBER DESCRIPTION ------- ----------- 99 Press Release issued by the Registrant on April 16, 2001. 4