Occidental to Announce Fourth Quarter Results Thursday, February 27, 2020; Hold Conference Call Friday, February 28, 2020

Occidental Petroleum Corporation (NYSE:OXY) will announce its fourth quarter 2019 financial results after close of market on Thursday, February 27, 2020, and will hold a conference call to discuss results on Friday, February 28, 2020, at 11 a.m. Eastern/10 a.m. Central.

The conference call may be accessed by calling 1-866-871-6512 (international callers dial 1-412-317-5417) or via webcast at www.oxy.com/investors. Participants may pre-register for the conference call at http://dpregister.com/10138595.

Fourth quarter 2019 financial results will be available through the Investor Relations section of the company's website. A recording of the webcast will be posted on the website within several hours after the call is completed.

About Occidental

Occidental is an international oil and gas exploration and production company with operations in the United States, Middle East and Latin America. We are the leading producer and largest acreage holder in the Permian Basin. Occidental is advancing a lower-carbon future with our subsidiary Oxy Low Carbon Ventures, which promotes innovative technologies that drive cost efficiencies and economically grow our business while reducing emissions. Occidental’s midstream and marketing segment provides flow assurance for our oil and gas segment, while maximizing the value of our products. OxyChem, our chemical subsidiary, is among the top three U.S. producers for the principal products it manufactures and markets. Occidental posts or provides links to important information on our website at oxy.com.

Contacts: Media: Melissa E. Schoeb 713-366-5615 [e-mail]

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Investors: Jeff [e-mail]

On the web: www.oxy.com