
	Mr. Mark A. McCollum has been the Chief Financial Officer and Executive Vice President of Halliburton Company since January 2008. Mr. McCollum served as Chief Accounting Officer and Senior Vice President of Halliburton from August 25, 2003 to December 31, 2007. He worked for Tenneco Inc., from January 1995 to August 2003, including as its Chief Financial Officer and Senior Vice President from April 1998 to August 15, 2003 and Vice President of Corporate Development, Vice President and Controller. He has been a Director of Butler Manufacturing Co. since January 2003 and has been Director of Exterran Holdings, Inc. since May 28, 2009. He served as Director of Exterran Partners, L.P. since May 2009. Mr. McCollum served as Director of UCO GP LLC, which is a General Partner of Exterran Partners, L.P. from October 16, 2006 to May 2009. He served as an Independent Director at Exterran GP LLC, by the General Partner of Exterran Energy Solutions, L.P. until May 28, 2009. He served as a Director of KBR, Inc. from June 2006 to April 2007. He serves as a Member of Advisory Board of Hankamer School of Business. He serves on Accounting Department Advisory Council of Baylor University. Mr. McCollum is a Certified Public Accountant in Texas, and is a Member of the AICPA, the Texas Society of CPA&#39;s, the Financial Executives Institute and the Institute of Management Accountants. Mr. McCollum received his Bachelor of Business Administration from Baylor University.
