Company: OXY-WT
Filing Date: 2025-08-07
Form Type: 424B2
Source: 0001628280-25-038901
Chunk: 4

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-08-07
Form: 424B2
Chunk 4
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 under the heading “Risk Factors” and elsewhere in this prospectus supplement, the accompanying prospectus and our most recent Annual Report on Form 10-K, which is incorporated herein by reference, as well as in any of our subsequently-filed annual, quarterly or current reports that are incorporated by reference in this prospectus supplement and the accompanying prospectus.

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THE OFFERING

| Common Stock to be issued, assuming full exercise of all outstanding Warrants |     | 31,990,880 shares of Common Stock                                                                                                                                                                                                                                                                                                                                                                                 |
| Proceeds, assuming full exercise of all outstanding Warrants                  |     | Approximately $703.8 million (initial exercise price of $22.00 per share)                                                                                                                                                                                                                                                                                                                                         |
| NYSE Listing for the Common Stock                                             |     | “OXY”                                                                                                                                                                                                                                                                                                                                                                                                             |
| NYSE Listing for the Warrants                                                 |     | “OXY WS”                                                                                                                                                                                                                                                                                                                                                                                                          |
| Aggregate number of Warrants outstanding                                      |     | 31,990,880 (as of July 21, 2025).                                                                                                                                                                                                                                                                                                                                                                                 |
| Exercisability                                                                |     | Each Warrant is exercisable for one share of Common Stock, subject to adjustment.                                                                                                                                                                                                                                                                                                                                 |
| Exercise Price                                                                |     | $22.00 per share, subject to adjustment. The Warrants require the payment of cash consideration.                                                                                                                                                                                                                                                                                                                  |
| Exercise Period                                                               |     | The Warrants are generally exercisable at any time until 5:00 p.m., New York City time, on August 3, 2027 (or, if that date is not a business day, the next business day), subject to the terms and conditions set forth in the Warrant Agreement. In particular, the Warrants will be exercisable only if a registration statement relating to the Common Stock issuable upon exercise is effective and current. |

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### OCCIDENTAL PETROLEUM CORPORATION
Occidental is an international energy company with premier diversified assets primarily located in the United States, the Middle East and North Africa. Occidental’s principal businesses consist of three reporting segments: oil and gas, chemical and midstream and marketing.

#### Corporate Information
Occidental is incorporated in Delaware. Its principal executive offices are located at 5 Greenway Plaza, Suite 110, Houston, Texas 77046 and its telephone number is (713) 215-7000. Occidental’s website address