Marathon Announces Retirement of kenneth l matheny vice president of investor relations and public affairs

Marathon Announces Retirement of Kenneth L. Matheny, Vice President of Investor Relations and Public Affairs

10-31-2007

Marathon Board Elects Howard J. Thill to Succeed Matheny

Marathon Oil Corporation announced today that Kenneth L. Matheny, vice president of Investor Relations and Public Affairs will retire effective Dec. 31, 2007, after more than 30 years of service. Howard J. Thill, currently director of Investor Relations for Marathon, has been elected by the Company's Board of Directors to succeed Matheny, effective Jan. 1, 2008.

Commenting on the announcement, Marathon president and CEO said, "Ken has made many important contributions to Marathon's success during his career, and it has been a privilege to work with him. His knowledge of our industry, as well as his professionalism and commitment to the highest standards of personal and professional integrity, have been an asset to Marathon throughout his career. On behalf of all Marathon employees, I wish him and his family good health and happiness in retirement.

"I also want to express our confidence in Howard Thill who has played an integral role in shaping and presenting Marathon's continued profitable growth outlook to investors and many other audiences. Howard's industry knowledge, business and financial skills and ability to communicate complex business related information are competencies essential in today's constantly changing global business environment. We look forward to the many contributions he will make toward Marathon's continued success."

Kenneth L. Matheny

Matheny, who holds a bachelor's degree in accounting from the University of Akron and a master's degree in business administration from Bowling Green State University, joined Marathon in 1977 as an advanced tax analyst in the Company's Findlay, Ohio, offices. He subsequently held a number of positions of increasing responsibility until 1988 when he was appointed director of Corporate Finance. The following year, he was named director of Human Resources, and in 1994, he was appointed vice president, Human Resources and Environment.

In 1997, Matheny was named vice president and comptroller at USX Corporation's Pittsburgh headquarters. He was named vice president of Investor Relations for USX in 2000, and in 2002, he was appointed vice president of Investor Relations for Marathon Oil Corporation following the reorganization and renaming of USX to Marathon Oil Corporation. He was appointed to his current position in 2003.

Matheny is a member of the American Institute of Certified Public Accountants, National Investor Relations Institute (NIRI) and the Petroleum Investor Relations Association (PIRA). He also participated in the Stanford University executive program in 1991.

Howard J. Thill

Thill, a native of Bartlesville, Okla., earned bachelor's degrees in accounting and marketing, as well as a master of business administration degree from Oklahoma State University. He began his career with Phillips Petroleum Company in 1982 as a drilling fluids sales/service engineer. He subsequently held positions of increasing responsibility in natural gas operations, federal and international tax, chemical accounting and international finance.

In 1997, Thill was appointed senior economic specialist in Phillips' Upstream Business Development Department, and in 1999, he was named director of Investor Relations in the Company's Investor and Public Relations Department. Thill joined Marathon Oil Corporation in 2002 as manager of Investor Relations and was appointed to his current position in 2003.

He is active in Junior Achievement and serves on the Houston Chapter's board of directors. Thill is a Certified Public Accountant and is active in NIRI, as well as PIRA where he currently serves as Treasurer. He also is active in the Oklahoma State University Alumni Association, having served as a past president of the Washington County (Okla.) chapter.

Marathon is an integrated international energy company engaged in exploration and production; oil sands mining; integrated gas; and refining, marketing and transportation operations. Marathon, which is based in Houston, Texas, has principal operations in the United States, Angola, Canada, Equatorial Guinea, Gabon, Indonesia, Ireland, Libya, Norway and the United Kingdom. Marathon is the fourth largest United States-based integrated oil company and the nation's fifth largest refiner.