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Allen T. McInnes has served as a member of our Board of Directors since 1993. He served as our President and Chief Executive Officer from April 1996 to January 2000. Mr. McInnes currently serves on our Audit Committee and our Nominating and Corporate Governance Committee. He has served as Dean of the Business School of Texas Tech University since September 2001. He has served as Chairman of the Board of TGC Industries, which is involved in the geophysical business, since July 1993. Mr. McInnes has been a director of Chase Packaging Corporation since 1993. He has been a director of Alamosa Holdings, Inc., a public company that provides wireless communications services, since February 2003. Mr. McInnes is a former Executive Vice President and director of Tenneco, Inc., where at various times he had overall corporate-level responsibility for chemicals, minerals, packaging, international development and real estate operations. Mr. McInnes received his B.B.A., M.B.A. and Ph.D. degrees from the University of Texas and he completed the Advanced Management Program at Harvard Business School in 1973. | 