Mark A McCollum

Mark McCollum is Executive Vice President and Chief Financial Officer for Halliburton. He is a member of the Company’s Executive Committee. Previously, he was Senior Vice President and Chief Accounting Officer. Prior to joining Halliburton as CAO in 2003, Mr. McCollum served as senior vice president and chief financial officer for Tenneco Automotive. Before that, he was vice president of Corporate Development for Tenneco Inc. He initially joined Tenneco as vice president for Financial Analysis and Planning in 1995, adding the title and responsibilities of corporate controller that same year. Before joining Tenneco, Mr. McCollum spent 14 years with Arthur Andersen, and served as an audit and business advisory partner of the firm’s worldwide partnership from 1991 through 1994. Mr. McCollum serves on the board of directors for Exterran Partners, LP, a master limited partnership providing natural gas compression services to customers throughout the U.S. He also serves on the board of trustees for Houston’s Star of Hope Mission and the Foundation for the Retarded. Mr. McCollum has a bachelor’s degree in business administration from Baylor University. He is a certified public accountant in Texas, and a member of the American Institute of Certified Public Accountants, the Texas Society of Certified Public Accountants, the Institute of Management Accountants and Financial Executives International.