press release

Unocal CEO to address Lehman Brothers conference; Internet webcast available

El Segundo, Calif., Aug. 29, 2002 -- Unocal Corporation (NYSE: UCL) today said that the company's Chairman and Chief Executive Officer Charles R. Williamson will speak at the Lehman Brothers CEO Energy/Power Conference on Wednesday, Sept. 4, 2002, at 10:40 a.m. EDT.

A live audio webcast of Williamson's remarks will be accessible via Unocal's web site. The presentation and associated question and answer session is expected to last about 35 minutes. Copies of the handouts will be available for downloading or printing. Replays of the presentation will be available within 24 hours and archived on Unocal's web site until Oct. 4, 2002.

About Unocal Corporation

Unocal is one of the world's largest independent natural gas and crude oil exploration and production companies. Based in El Segundo, Calif., Unocal's principal production operations are in North America, Asia, and the North Sea. Unocal is also one of the world's largest producers of geothermal energy with operations in Indonesia and the Philippines.

Updated: August 2002