Marathon Oil (MRO)

Charles F. Bolden, Jr.

Director since 2003

Age 60

Chief Executive Officer of JackandPanther LLC, a privately-held military and aerospace consulting firm

Mr. Charles F. Bolden, Jr. received a bachelor’s of science degree from the U.S. Naval Academy, a master of science degree in systems management from the University of Southern California, and is a graduate of the U.S. Naval Test Pilot School at Patuxent River, Maryland. He has received Honorary Doctorates from several distinguished universities. He was a space shuttle pilot astronaut for the National Aeronautics and Space Administration (NASA) for 13 years, flying four space missions. From April 1992 to June 1993 Mr. Bolden served as Assistant Deputy Administrator for NASA. He was assigned Deputy Commanding General, 1MEF, Marine Forces, Pacific in 1997. Mr. Bolden served as Commanding General, 1 MEF (FWD) for Operation Desert Thunder in Kuwait from February to June 1998. In July 1998, he was promoted to Major General serving as the Commanding General of the Third Marine Aircraft Wing. Mr. Bolden retired from the United States Marine Corps on January 1, 2003 after serving 34 and a half years. He has been awarded a number of military and NASA decorations. Mr. Bolden was the President and Chief Operating Officer of American PureTex Water Corporation and PureTex Water Works from January to April 2003. He was Senior Vice President at TechTrans International, Inc. from April 2003 until January 1, 2005. Mr. Bolden is currently Chief Executive Officer of JackandPanther LLC, a privately-held military and aerospace consulting small business firm. He is a director of Bristow Group Inc., GenCorp Inc. and Palmetto GBA, a subsidiary of BlueCross BlueShield of South Carolina. Mr. Bolden is a trustee for the University of Southern California, and is also a director of the Military Child Education Coalition, the Family Literacy Foundation, and the Tailhook Education Foundation.

Charles R. Lee

Director since 1991

Age 66

Retired Chairman of the Board, Verizon Communications Inc.

Mr. Lee received his bachelor’s degree in metallurgical engineering from Cornell University and an MBA with distinction from the Harvard Graduate School of Business Administration. He served in various financial and management positions before becoming Senior Vice President-Finance for Penn Central Corp. and then Columbia Pictures Industries Inc. In 1983, Mr. Lee joined GTE Corporation (which merged with Bell Atlantic Corporation to form Verizon Communications in 2000) as Senior Vice President of Finance and in 1986 was named Senior Vice President of Finance and Planning. He was elected President, Chief Operating Officer and a director in December 1988 and was elected Chairman of the Board and Chief Executive Officer of GTE in 1992. Mr. Lee served as Chairman of the Board and Co-CEO of Verizon Communications from June 30, 2000 through March 31, 2002, and served as non-executive Chairman of the Board from April 2002 to December 2003. He is a director of United States Steel Corporation, The Proctor & Gamble Company, United Technologies Corporation, DIRECTV Group, Inc., American Institutes for Research, and Project GRAD USA. Mr. Lee is a member of the Board of Overseers of Weill Cornell Medical College. He is a member of The Business Council. Mr. Lee is also a Trustee Emeritus and Presidential Councilor of Cornell University.

Dennis H. Reilley

Director since 2002

Age 53

Chairman, Praxair, Inc.

Mr. Reilley graduated from Oklahoma State University with a BS in finance in 1975. He began working at Conoco, Inc. in 1975 as a pipeline engineer and in 1979 was promoted to Executive Assistant to the Chairman. Mr. Reilley held many key positions at E. I. Du Pont de Nemours & Company which purchased Conoco in 1981. He held senior management positions in DuPont’s Chemicals and Specialties business including Vice President and General Manager of Special Chemicals. In May 1999 he was appointed Executive Vice President and Chief Operating Officer of DuPont with responsibility for pigments and chemicals, specialty polymers, nylon and polyester. Mr. Reilley became Chairman, President and Chief Executive Officer of Praxair, Inc. in 2000. From March 1, 2006 through December 2006, he held the positions of Chairman and Chief Executive Officer and is currently the Chairman. Mr. Reilley is a director of H. J. Heinz Co. and the Conservation Fund. Mr. Reilley is former Chairman of the American Chemistry Council.

John W. Snow

Director since September 2006

Age 67

Chairman, Cerberus Capital Management LP and Former Secretary of the Treasury

Mr. Snow graduated from the University of Toledo in 1962 with a BA degree. He also holds a master’s degree from Johns Hopkins University and a doctorate in economics from the University of Virginia. Mr. Snow graduated with a law degree from George Washington University in 1967. He joined Cerberus Capital Management LP as Chairman in October 2006.  Mr. Snow was sworn into office as Secretary of the Treasury in February 2003, where he served until leaving office in June 2006. Prior to becoming Secretary of the Treasury, he was Chairman and Chief Executive Officer of CSX Corporation. He also held several high-ranking positions in the Department of Transportation during the Ford Administration. Mr. Snow is a director of Verizon Communications, Inc. He is a former co-chairman of the Conference Board’s Blue-Ribbon Commission on Public Trust and Private Enterprise. He also served as co-chairman of the National Commission on Financial Institution Reform, Recovery and Enforcement. Prior to serving as Secretary of the Treasury, Mr. Snow served on various corporate and nonprofit boards, including the American Enterprise Institute and Johns Hopkins University. He previously served as a member of USX Corporation’s Board of Directors from March 1995 through December 2001.

Thomas J. Usher

Director since 1991

Age 64

Non-executive Chairman of the Board, Marathon Oil Corporation

Mr. Usher graduated from the University of Pittsburgh with a BS degree in industrial engineering, an MS degree in operations research and a Ph.D. in systems engineering. He joined United States Steel Corporation (later renamed USX Corporation) in 1965 and held various positions in industrial engineering. From 1975 through 1979, he held a number of management positions at U.S. Steel’s South and Gary Works. Mr. Usher was elected Executive Vice President-Heavy Products in 1986, President-U.S. Steel Group and director of USX in 1991, President and Chief Operating Officer of USX in 1994 and Chairman of the Board and Chief Executive Officer effective July 1, 1995. He retired from United States Steel Corporation as Chief Executive Officer in September 2004, and as non-executive Chairman of the Board on February 1, 2006. Mr. Usher is a director of H. J. Heinz Co., The PNC Financial Services Group, Inc., and PPG Industries, Inc. He is a trustee of the University of Pittsburgh, and a director of the Extra Mile Education Foundation and the Boy Scouts of America. Mr. Usher is a member of The Business Council.