HENRY E. LENTZ has been a director of the Company since 1998. Mr. Lentz is currently employed as an Advisory Director by Lehman Brothers. He joined Lehman Brothers in 1971 and became a Managing Director in 1976. He left the firm in 1988 to become Vice Chairman of Wasserstein Perella Group, Inc., an investment banking firm. In 1993, he returned to Lehman Brothers as a Managing Director and served as head of the firm's worldwide energy practice. In 1996, he joined Lehman Brothers' Merchant Banking Group as a Principal and in January 2003 became a consultant to the Merchant Banking Group. He assumed his current role with Lehman Brothers effective January 2004. Mr. Lentz is also a director of Rowan Companies, Inc. and CARBO Ceramics, Inc.
