TGS-NOPEC GEOPHYSICAL CO LP competitors

Lee M. Tillman is president and chief executive officer of Marathon Oil Corporation and a member of the Marathon Oil Corporation Board of Directors. He joined the Company in August 2013. Immediately prior to this, Mr. Tillman served as vice president of Engineering for ExxonMobil Development Company where he was responsible for all global engineering staff engaged in major project concept selection, and front end engineering and design. He began his career in the oil and gas industry at Exxon in 1989 as a research engineer. He 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. Mr. Tillman holds a Bachelor of Science degree in chemical engineering with honors from Texas A&M University and a Ph.D. in chemical engineering from Auburn University. He is a board member of the American Petroleum Institute (API), American Exploration & Production Council (AXPC), a member of the University of Houston Energy Advisory Board and the Chemical and Engineering Advisory Councils of Texas A&M University. He is a member of the Society of Petroleum Engineers.

Experienced Service Executive with a demonstrated history of working in the oil & energy industry. Skilled in Petroleum, Contract Management, Strategic Leadership, Deepwater, and Offshore Drilling. Strong operations professional graduated from Massachusetts Maritime Academy with Executive Education from Wharton School of Business, London School of Economics, & INSEAD.