press release

Unocal panel to present at Banc of America conference

El Segundo, Calif., Nov. 11, 2004 - Unocal Corporation (NYSE: UCL) today said that it will participate in a panel discussion at the Banc of America Energy and Power Conference on Nov. 16, 2004, at 3:10 pm Pacific time.

The presentation is expected to include information concerning Unocal's recent financial and operating results and outlook regarding certain exploration, development and production activities.

The Unocal panelists will include James H. Painter, senior vice president for Global Exploration and Technology; Robert E. Wright, vice president of Investor Relations; and Lee M. Ahlstrom, manager, Investor Relations.

A live webcast of the presentation will be available on Unocal's web site, www.unocal.com. Replays of the webcast will be available through Dec. 3, 2004.

Listeners can access the webcast by clicking on the "News and Presentations" link in the Investor Relations section of the Unocal web site.

About Unocal Corporation

Unocal is one of the world's leading independent natural gas and crude oil exploration and production companies. The company's principal oil and gas activities are in Asia and North America.

Updated: November 2004