Chevron Vice President, Unocal CEO To Retire

Chevron Corporation announced today that Charles R. Williamson, executive vice president and former chairman of the board and chief executive officer of Unocal Corporation has elected to retire effective Dec. 1, 2005, the company announced on its website.

"Chuck has been a valuable, principled and respected leader in our industry. He has played an important role in helping ensure a seamless integration of Unocal into Chevron, which is now largely complete," said Dave O'Reilly, chairman and chief executive officer of Chevron Corporation. "Many of Chuck's accomplishments will contribute to Chevron's future growth, including his development of a leading international asset base, particularly in Southeast Asia and the Caspian region. We wish him well in his retirement."

"I am pleased to have contributed to this important transaction," said Williamson. "I leave knowing there is strong leadership in place and many exciting opportunities for Unocal's highly skilled employees who are now part of Chevron."

Williamson joined Union Oil Company of California (Unocal) as a research scientist in 1977 and worked on a wide range of research and technical applications with domestic and international exploration and production operations. In 1983, he was posted to London as Unocal's chief geologist for the United Kingdom and Ireland. In 1986, he was named exploration manager for Unocal Netherlands, where he served until 1989. From 1989 to 1992, he served as vice president of exploration for Unocal Thailand in Bangkok.