Mr. Tillman, 53, became a director, President and Chief Executive Officer of Marathon Oil Corporation on August 1, 2013. Prior to joining Marathon Oil, he served as vice president of engineering for ExxonMobil Development Company (a project design and execution company), where he was responsible for all global engineering staff engaged in major project concept selection, frontend design and engineering. He served as North Sea production manager and lead country manager for subsidiaries of ExxonMobil in Stavanger, Norway, from 2007 and 2010, and as acting vice president, ExxonMobil Upstream Research Company from 2006 to 2007. Mr. Tillman began his career in the oil and gas industry at Exxon Corporation in 1989 as a research engineer and has extensive operations management and leadership experience that has included assignments in Jakarta, Indonesia; Aberdeen, Scotland; Stavanger, Norway; Malabo, Equatorial Guinea; Dallas and New Orleans.
He is a board member of the American Petroleum Institute, American Exploration Production Council and the Greater Houston Partnership, a member of the University of Houston Energy Advisory Board and the Chemical and Engineering Advisory Councils of Texas AM University. He is also a member of the National Petroleum Council, the Business Roundtable and the Society of Petroleum Engineers. Mr. Tillman serves as a member of the Celebration of Reading Committee within the Barbara Bush Houston Literacy Foundation. He also is a member of the advisory board of Spindletop Charities.
Mr. Tillman holds a B.S. in chemical engineering from Texas AM University and a Ph.D. in chemical engineering from Auburn University.
Marathon Oil Corporation is a United States oil and natural gas exploration and production company. Principal exploration activities are in the United States, Equatorial Guinea, Poland, Angola and Iraqi Kurdistan. Principal production activities are in the United States, the United Kingdom, Norway, and Equatorial Guinea. Within the United States, Marathon Oil has recently focused development efforts on liquids-rich shale plays, including the Bakken and Eagle Ford formations. Marathon Oil owns interests developing Athabasca oil sands (Canada) resources and in Waha Oil Company (Libya). Marathon's headquarters facility is the Marathon Oil Tower in Houston, Texas.