Occidental Petroleum to Hold First Quarter 2010 Earnings Conference Call

LOS ANGELES--(Business Wire)--
Occidental Petroleum Corporation (NYSE:OXY) will hold a conference call on
Thursday, April 29, 2010, following the release of its first quarter 2010
financial results. The conference call, which will begin at 11:30 a.m. Eastern,
may be accessed by calling 800-473-6123. 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 2010 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.

ABOUT OXY

Occidental Petroleum Corporation is an international oil and gas exploration and
production company with operations in the United States, Middle East/North
Africa and Latin America regions. Oxy is the fourth largest U.S. oil and gas
company, based on equity market capitalization. Oxy's wholly owned subsidiary,
OxyChem, manufactures and markets chlor-alkali products and vinyls. Occidental
is committed to safeguarding the environment, protecting the safety and health
of employees and neighboring communities and upholding high standards of social
responsibility in all of the company's worldwide operations.

Occidental Petroleum Corporation
Richard S. Kline (media)
richard_kline@oxy.com
310-443-6249
or
Chris Stavros (investors)
chris_stavros@oxy.com
212-603-8184
or
On the web: www.oxy.com

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