Occidental to Hold Earnings Conference Call

LOS ANGELES, April 11, 2003 (PRIMEZONE) -- Occidental Petroleum
Corporation (NYSE:OXY) will hold a conference call on Tuesday, April 22,
2003, following the release of its first-quarter 2003 financial results.
The conference call, which will begin at 11:30 a.m. EST, may be accessed
by calling 1-888-868-9080.  The conference call also can be heard live
on the company's website, www.oxy.com.

All remarks made during the conference call will be current at the time
of the call and will not be updated to reflect subsequent material
developments.

First-quarter financial results will be available through the Investor
Relations section of the company's website concurrent with the SEC
filing.  An archived edition of the conference call also will be
available on the website within several hours after the call is
completed.

CONTACTS: Occidental Petroleum Corporation
          Lawrence P. Meriage (media)
           310-443-6562
          Kenneth J. Huffman (investors)
           212-603-8183
          On the web: www.oxy.com