Occidental Petroleum 1st Quarter 2013 Results to be Announced April 25, 2013

  Occidental Petroleum 1st Quarter 2013 Results to be Announced April 25, 2013

Business Wire

LOS ANGELES -- April 18, 2013

Occidental Petroleum Corporation (NYSE:OXY) will hold a conference call on
Thursday, April 25, 2013, following the release of its first quarter 2013
financial results. The conference call, which will begin at 11:30 a.m.
Eastern, may be accessed by calling 800-473-6123 (for international callers
dial 973-582-2710). 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 may not be updated to reflect subsequent material developments.

First quarter 2013 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 (OXY) is an international oil and gas
exploration and production company with operations in the United States, the
Middle East region and Latin America. Oxy is one of the largest U.S. oil and
gas companies, based on equity market capitalization. Oxy's wholly owned
subsidiary OxyChem manufactures and markets chlor-alkali products and vinyls.
Oxy 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.

Contact:

Occidental Petroleum Corporation
Media
Melissa E. Schoeb
310-443-6504
melissa_schoeb@oxy.com
or
Investors
Chris Stavros
212-603-8184
chris_stavros@oxy.com
On the web: www.oxy.com