William C. Pate has been a director since 1999 and was Chairman of the Board from October 2004 through September 2005. Mr. Pate is Chairman of the Audit Committee and a member of the Finance Committee and the Public Policy Committee. Mr. Pate is Managing Director of EGI, a privately-held investment firm. Mr. Pate has been employed by EGI or its predecessor in various capacities since 1994. Mr. Pate also serves as a director of Exterran Holdings, Inc.