Charles R Williamson

Charles R. Williamson a director of the company since October 2004, was the executive vice president of Chevron Texaco Corporation (international oil company) from August, 2005 until his retirement on December 1, 2005. He was chairman and chief executive officer of Unocal Corporation (oil and natural gas) until its acquisition by Chevron Texaco Corporation in 2005. He served as Unocal Corporation's executive vice president, International Energy Operations from 1999 to 2000; group vice president, Asia Operations from 1998 to 1999; group vice president, International Operations from 1996 to 1997; and held numerous management jobs including positions in the United Kingdom, Thailand and the Netherlands since joining Unocal in 1977. He was a director of Unocal Corporation and former Chairman of the US-ASEAN Business Council. He is also a director of Talisman Energy Inc. and PACCAR Inc.