Marathon Oil Makes Organizational Changes

Marathon Oil Corporation announced the following organizational changes among its senior management team. All changes are effective April 1, 2008.

-- Steven B. Hinchman, currently senior vice president of Worldwide Production, has been named executive vice president of Technology and Services. He will have responsibility for Health, Environment and Safety; Upstream Technology; Emerging Technology; Major Projects; Corporate Social Responsibility; and Commercial Services.

-- David E. Roberts, Jr., currently senior vice president of Business Development, has been named executive vice president, Upstream. In this role, Roberts will have responsibility for worldwide Exploration, Production and Integrated Gas, as well as upstream business development.

-- R. Douglas Rogers, currently organizational vice president of Environment, Safety and Emergency Response, has been named vice president of Health, Environment and Safety. Rogers' responsibilities will also include emergency preparedness and security.

-- Daniel J. Sullenbarger, currently vice president of Corporate Responsibility, has been named vice president of Corporate Compliance and Ethics. In this role, Sullenbarger will be responsible for Marathon's business integrity office and will serve as the Company's chief compliance officer.

Hinchman, Roberts and Sullenbarger will continue to report to Clarence P. Cazalot, Jr., Marathon president and CEO. Rogers will report to Hinchman.

"The changes announced today will better align Marathon's organizational structure with our business portfolio allowing us to create maximum value in each of our business segments and key support organizations," said Cazalot. "I have full confidence in each of these individuals and their leadership capabilities as we carry out Marathon's business plans and strategies to deliver defined growth across our business segments well into the future."

Steven B. Hinchman has been senior vice president of Worldwide Production for Marathon Oil Corporation and has served as a member of Marathon's Executive Committee since January 2002. Previously, Hinchman was appointed senior vice president of Production Operations in 2000. He joined the Company in 1980 as a field engineer and subsequently held a number of technical, staff and managerial positions of increasing responsibility in the Company's domestic and international exploration and production organizations. Hinchman received a bachelor's degree in petroleum engineering from Pennsylvania State University in 1980, and a master's degree in the same field of study from the Colorado School of Mines in 1987.

David E. Roberts, Jr. joined Marathon in 2006 as senior vice president of Business Development for Marathon Oil Corporation and has served as a member of Marathon's Executive Committee. He previously served as executive vice president/managing director for BG Group with responsibility for Asia and the Middle East. Prior to joining BG, he served as advisor to the vice chairman of ChevronTexaco Corporation (now Chevron Corporation) from 2001 to 2003, where he provided strategic and operational advice to executive management regarding the Company's upstream operations. He joined Texaco in 1983. Roberts is a graduate of the University of Alabama in Tuscaloosa, Ala., where he earned a Bachelor of Science degree in mineral engineering.

R. Douglas Rogers has been organizational vice president, Safety, Environment and Emergency Response since 2007. Previously, in 2005 he was named manager of Marathon Petroleum Company LLC's Environment, Safety and Security organization in Findlay. From 2000 to 2004, he held various management positions including Product Quality manager. Rogers served as Marathon's Emergency Preparedness manager from 1998 until 2000. Since joining Marathon in 1985 as a pipeline engineer, he held various engineering related positions in Findlay and Atlanta before moving into Marathon's Health, Environment and Safety organization in 1997. Rogers is a graduate of Purdue University in Indiana, where he earned a bachelor's degree in civil engineering.

Daniel J. Sullenbarger has been vice president, Corporate Responsibility for Marathon Oil Corporation since 2005. Previously, he had served as vice president of Health, Environment and Safety since September 2000. In September 1998, he was appointed vice president of Human Resources and Environment. Since joining Marathon in 1975, Sullenbarger held a number of positions in the law organization in Findlay, Ohio, London and Houston. Sullenbarger earned an undergraduate degree in political science from Bowling Green State University in 1973 and a law degree from Ohio Northern University in 1976.