Thursday, April 8, 2021 09:00 ET 

Occidental to Announce First Quarter Results Monday, May 10, 2021; Hold Conference Call Tuesday, May 11, 2021

HOUSTON — April 8, 2021 — Occidental (NYSE: OXY) will announce its first quarter 2021 financial results after close of market on Monday, May 10, 2021, and will hold a conference call to discuss results on Tuesday, May 11, 2021, at 1 p.m. Eastern/12 p.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 oxy.com/investors. Participants may pre-register for the conference call at https://dpregister.com/sreg/10154029/e5f102f8a9.

First quarter 2021 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 after the call is completed.