Company: OXY-WT
Filing Date: 2025-03-03
Form Type: 424B3
Source: 0001140361-25-006657
Chunk: 0

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-03-03
Form: 424B3
Chunk 0
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#### Filed Pursuant to Rule 424(b)(3)

#### Registration No. 333-266420

#### Prospectus Supplement
**(to Prospectus dated July 29, 2022 as supplemented March 3, 2025)**

This prospectus supplement is being filed to update and supplement the information contained in our prospectus dated July 29, 2022 (as supplemented by the prospectus supplement thereto dated March 3, 2025, the “Prospectus”), with the following information. Capitalized but undefined terms have the meanings ascribed to such terms in the Prospectus.

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Pursuant to the terms and subject to the conditions of the Offer to Exercise Warrants to Purchase Common Stock of Occidental Petroleum Corporation, dated March 3, 2025 (the “Offer to Exercise”), included as Exhibit (a)(1)(B) to our Schedule TO filed with the U.S. Securities and Exchange Commission on the date hereof, we are offering to holders of our outstanding publicly traded warrants (the “Warrants”), each exercisable for one share of our common stock, par value $0.20 per share (“Common Stock”), at an exercise price of $22.00, the opportunity to exercise such Warrants at a temporarily reduced exercise price of $21.30 per Warrant. During the offer period under the Offer to Exercise, holders of the Warrants may exercise their Warrants at the temporarily reduced exercise price through the procedures described in the Offer to Exercise or holders of Warrants may exercise such Warrants at the initial exercise price of $22.00 per Warrant following the procedures set forth in the warrant agreement, dated as of July 24, 2020, by and between the Company and Equiniti Trust Company, LLC, as Warrant Agent (as amended, the “Warrant Agreement”), and instruct Equiniti Trust Company, LLC, as the depositary agent and our warrant and transfer agent (the “Depositary Agent”), to issue the shares of Common Stock purchased pursuant to such Warrants to you or your broker or nominee in book-entry form. Pursuant to the Offer to Exercise, the opportunity to exercise the Warrants at the temporarily reduced exercise price will be available until 5:00 p.m. (Eastern Time) on March 31, 2025 (the “Expiration Date”), subject to extension in our discretion as described in the Offer to Exercise. Following the Expiration Date, holders of the W