Company: OXY-WT
Filing Date: 2025-08-07
Form Type: 424B2
Source: 0001628280-25-038901
Chunk: 18

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-08-07
Form: 424B2
Chunk 18
---
, New York, has issued an opinion in respect of the validity of the shares of Common Stock issuable upon exercise of the Warrants.

### EXPERTS
The consolidated financial statements of Occidental Petroleum Corporation and subsidiaries as of December 31, 2024 and 2023, and for each of the years in the three-year period ended December 31, 2024 and management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2024 have been incorporated by reference herein in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

The consolidated financial statements of CrownRock, L.P. and its subsidiaries (“CrownRock”) as of and for the year ended December 31, 2023 incorporated by reference in this prospectus supplement have been so incorporated in reliance upon the report of BDO USA, P.C., independent auditors, given on the authority of said firm as experts in accounting and auditing.

Certain information with respect to the oil and gas reserves associated with Occidental’s oil and gas properties is confirmed in the process review letter of Ryder Scott Company, L.P., independent petroleum engineering consultants, and has been incorporated by reference herein, upon the authority of said firm as experts with respect to the matters covered by such process review letter and in giving such process review letter.

Certain information with respect to the oil and gas reserves associated with CrownRock’s oil and gas properties is confirmed in the report of Cawley, Gillespie & Associates, Inc., independent petroleum engineering consultants, with respect to estimates of reserves and future net revenues of CrownRock as of December 31, 2023, and has been incorporated by reference herein, upon the authority of said firm as experts with respect to the matters covered by such report and in giving such report.

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### WHERE YOU CAN FIND MORE INFORMATION
We are subject to the information reporting requirements of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). In accordance with the Exchange Act, we file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC file number is 001-09210. The SEC maintains a website that contains reports, proxy statements and other information about issuers, like us, that file electronically with the SEC. The address of that site is www.sec.gov. Such reports, proxy statements and other