press release

Unocal's 2Q 2002 earnings conference call set for July 24

El Segundo, Calif., July 17, 2002 -- Unocal Corporation (NYSE: UCL) will discuss its second quarter 2002 financial and operating results in a conference call webcast on Unocal's web site on Wednesday, July 24, 2002. The conference call will begin at 1:00 p.m. PDT (4:00 p.m. EDT).

Investors, analysts, stockholders, news media, employees and the general public are invited to listen to the webcast. Listeners can use RealPlayer or Windows Media Player. Replays and transcripts of the conference call will be available on the Unocal web site through Aug. 30, 2002.

Robert E. Wright, vice president of Investor Relations for Unocal, will be the conference call moderator. Charles R. Williamson, Unocal chairman and chief executive officer; Timothy H. Ling, Unocal president and chief operating officer; and Terry G. Dallas, Unocal chief financial officer, will also participate in the call. Unocal will offer graphics during the call that can be viewed or downloaded onto your computer from the Unocal web site.

Unocal expects to announce its second quarter 2002 earnings results on July 24 before the open of trading on the NYSE.

About Unocal Corporation

Unocal is one of the world's leading independent natural gas and crude oil exploration and production companies. The company's oil and gas activities are in North America, Asia, Latin America, and the North Sea. Unocal is one of the world's largest producers of geothermal energy with operations in the Philippines and Indonesia.

Updated: July 2002