UNITED STATES 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): August 13, 2002 MARATHON OIL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-5153 25-0996816 -------------------- ------------------------ --------------------- (State or Other Jurisdiction of (Commission File Number) (IRS Employer Incorporation) Identification Number) 5555 San Felipe Road, Houston, TX 77056-2723 ----------------------------------------------- (Address of Principal Executive Offices) (713) 629-6600 ------------------------------ (Registrant's telephone number, including area code) ITEM 7. Financial Statements and Exhibits (c) Exhibits 99.1 Statement Under Oath of President and Chief Executive Officer dated August 13, 2002 99.2 Statement Under Oath of Chief Financial Officer dated August 13, 2002 ITEM 9. Regulation FD Disclosure On August 13, 2002, each of the President and Chief Executive Officer, Clarence P. Cazalot, Jr., and Chief Financial Officer, John T. Mills, of Marathon Oil Corporation submitted to the SEC sworn statements pursuant to Securities and Exchange Commission Order No. 4-460. A copy of each of these statements is attached hereto as an Exhibit (99.1 and 99.2). SIGNATURES 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 hereunto duly authorized. MARATHON OIL CORPORATION By: /s/ A. G. Adkins ----------------------------- A. G. Adkins Vice President - Accounting and Controller Dated: August 13, 2002