John U. Clarke
Since December 2004, Mr. Clarke has been Chairman of the Board and Chief Executive Officer of NATCO Group, Inc., a publicly traded oil services and equipment company. From May 2001 until assuming his current position with NATCO, Mr. Clarke was the President of Concept Capital Group, a financial and strategic advisory firm originally founded by Mr. Clarke in 1995. During 2001, Mr. Clarke was a Managing Director of SCF Partners, a private equity investment company focused on the oil and gas services and equipment sectors of the energy industry. From 1999 to 2000, Mr. Clarke was Executive Vice President of Dynegy, Inc., a publicly traded global energy merchant, where he was also an Advisory Director and member of the Office of the Chairman. Mr. Clarke joined Dynegy in April 1997 as Senior Vice President and Chief Financial Officer. Prior to joining Dynegy, Mr. Clarke was a managing director and co-head of a specialty energy practice group with Simmons & Company International, a Houston-based investment banking firm. From 1995 to 1997, he served as President of Concept Capital Group. Mr. Clarke was Executive Vice President and Chief Financial and Administrative Officer with Cabot Oil and Gas, a publicly traded Appalachian oil and gas producer, from 1993 to 1995. He was with Transco Energy, a publicly traded interstate pipeline company, from 1981 to 1993, last serving as Senior Vice President and Chief Financial Officer. Mr. Clarke began his professional career with Tenneco, Inc. in 1978. In addition to being on the Board of Directors of NATCO, Mr. Clarke is a member of the Board of Directors of the Houston Exploration Company, a publicly traded North American exploration and production company. He is also Chairman and a member of the Board of Directors of FuelQuest, a market service provider to petroleum marketers. Mr. Clarke earned a Bachelor of Arts degree in Economics from the University of Texas in 1975 and a Master of Business Administration degree from Southern Methodist University in 1977.

