Company: OXY-WT
Filing Date: 2025-08-07
Form Type: 424B2
Source: 0001628280-25-038901
Chunk: 19

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-08-07
Form: 424B2
Chunk 19
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 information filed by us can also be read through the Investor Relations section of our website at www.oxy.com. Information on our website does not constitute part of, and is not incorporated by reference in, this prospectus supplement or the accompanying prospectus and should not be relied upon in connection with making any investment decision with respect to our Common Stock.

The SEC allows us to “incorporate by reference” the information that we file with the SEC. This permits us to disclose important information to you by referencing these filed documents. Any information referenced this way is considered part of this prospectus supplement, and any such information filed with the SEC subsequent to the date of this prospectus supplement will automatically be deemed to update and supersede this information. This prospectus supplement incorporates by reference the documents listed below that we have previously filed with the SEC. They contain important information about us and our financial condition.

• Annual Report on Form 10-K for the year ended December 31, 2024;

• Quarterly Report on Form 10-Q for the quarter ended March 31, 2025;

• Current Reports on Form 8-K filed on July 19, 2024 , August 12, 2024 , March 3, 2025 , May 6, 2025 and July 28, 2025 ; and;

• Portions of our Definitive Proxy Statement on Schedule 14A filed with the SEC on March 20, 2025 that are incorporated by reference into Part III of our Annual Report on Form 10-K for the year ended December 31, 2024; and

• The description of Occidental Common Stock contained in the registration statement on Form 8-B, dated June 26, 1986 (as amended by Form 8, dated December 22, 1986, Form 8, dated February 3, 1988, Form 8-B/A, dated July 12, 1993, Form 8-B/A, dated March 21, 1994, and Form 8-B/A , dated November 2, 1995, and including any amendment or report filed with the SEC for the purpose of updating this description).

We also incorporate by reference all documents we may subsequently file with the SEC pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act from the date of this prospectus supplement until the termination of the offering or offerings to which this prospectus supplement relates. Information furnished under