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Mr. Roth was appointed to the position of President and Chief Operating Officer and became a director on March 16, 2007. Previously he served as Executive Vice President of Engineering and Chief Technology Officer since April of 2005 and Senior Vice President of Projects from July 2004 until April 2005. Prior to joining Syntroleum in July 2004, Mr. Roth served with Petrofac Resources International in varying positions from December 1997 to July 2004, and in July 2003 was appointed President and Chief Operating Officer of Petrofac LLC, a company involved in all facets of turnkey engineering, procurement and construction in refining and gas processing. From February 1994 to December 1997, Mr. Roth was Vice President of Engineering & Operations at Zilkha Energy. From December 1979 to February 1994, he worked at ARCO in various capacities, including drilling production operations and business development both domestically and internationally. Mr. Roth has a B.S. in Petroleum Engineering from Texas A&M University and a M.B.A. in Finance from the University of Chicago. | 