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Clarence P. Cazalot, Jr.
President and CEO, Marathon Oil CorporationClarence P. Cazalot Jr. is president and chief executive officer of Marathon Oil Corporation and a member of the Marathon Oil Corporation Board of Directors. He joined Marathon in March 2000.
Immediately prior to this, Mr. Cazalot served as vice president of Texaco Inc. and president of Texaco’s worldwide production operations. He was appointed president of Texaco’s worldwide production operations in 1999.
Mr. Cazalot joined Texaco in 1972 as a geophysicist in Bellaire, and transferred to the company’s offshore division in New Orleans, Louisiana, in 1974. He subsequently held a number of posts of increasing responsibility before being named assistant district geologist in 1976, district geologist in 1977, assistant division geologist in 1979 and regional manager of exploration in 1981.
Mr. Cazalot is a native of New Orleans and graduated from Louisiana State University with a bachelor’s degree in geology. In May 2007, he was awarded an Honorary Doctorate of Humane Letters from Louisiana State University.
He serves on the Boards of Directors of Baker Hughes Incorporated, the U.S.-Saudi Arabian Business Council, the American Petroleum Institute and the Greater Houston Partnership. He is a member of The Business Council and serves on the Advisory Board of the World Affairs Council of Houston.
Mr. Cazalot is also a member of the American Association of Petroleum Geologists, the Texas Governor’s Business Council, the National Petroleum Council, the 25-Year Club of the Petroleum Industry and the All-American Wildcatters organization.

