Company: OXY-WT
Filing Date: 2025-06-27
Form Type: 11-K
Source: 0000797468-25-000098
Chunk: 1

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-06-27
Form: 11-K
Chunk 1
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| * Other supplemental schedules have been omitted because they are not applicable or are not required by 29 CFR 2520.103-10 of the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974, as amended. |   |     |                                                                                         |     |    |     |      |

<div align='center'>Report of Independent Registered Public Accounting Firm</div>

To the Occidental Petroleum Corporation Pension and Retirement Plan Administrative Committee and

Plan Participants of Occidental Petroleum Corporation Savings Plan

Houston, Texas

### Opinion on the Financial Statements
We have audited the accompanying statements of net assets available for benefits of the Occidental Petroleum Corporation Savings Plan (the Plan) as of December 31, 2024 and 2023, and the related statements of changes in net assets available for benefits for the years ended December 31, 2024 and 2023, and the related notes and schedules (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2024 and 2023, and the changes in net assets available for benefits for the years ended December 31, 2024 and 2023, in conformity with accounting principles generally accepted in the United States of America.

#### Basis for Opinion
These financial statements are the responsibility of Plan management. Our responsibility is to express an opinion on these financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test