Company: OXY-WT
Filing Date: 2025-06-27
Form Type: 11-K
Source: 0000797468-25-000098
Chunk: 0

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-06-27
Form: 11-K
Chunk 0
---
<div align='center'>United States

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 11-K</div>

(Mark One)

| [X] |     | ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |

<div align='center'>For the fiscal year ended December 31, 2024

OR</div>

| [   ] |     | TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |

For the transition period from ____________ to ______________

Commission file number: 1-9210

| A.  Full title of the plan and the address of the plan, if different from that of the issuer named below: |

<div align='center'>Occidental Petroleum Corporation Savings Plan</div>

| B.  Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: |

<div align='center'>Occidental Petroleum Corporation

5 Greenway Plaza, Suite 110

Houston, Texas 77046

1</div>

### OCCIDENTAL PETROLEUM CORPORATION

### SAVINGS PLAN

#### Index
| Report of Independent Registered Public Accounting Firm                                                                                                                                                                                                                           
 Statements of Net Assets Available for Benefits - As ofDecember 31, 2024and2023                                                                                                                                                                                                   
 Statements of Changes in Net Assets Available for Benefits -Years ended December 31, 2024and2023                                                                                                                                                                                  |   |     |                                                                                         |     |  3 
  4 
  5 |     | Page |
|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--:|:----|:----------------------------------------------------------------------------------------|:----|---:|:----|:-----|
| Notes to Financial Statements                                                                                                                                                                                                                                                     |   |     |                                                                                         |     |  6 |     |      |
| Supplemental Schedules *                                                                                                                                                                                                                                                          |   |     |                                                                                         |     |    |     |      |
|                                                                                                                                                                                                                                                                                   | 1 |     | Schedule H, Line 4i – Schedule of Assets (Held at End of Year) -As of December 31, 2024 |     | 21 |     |      |
|                                                                                                                                                                                                                                                                                   | 2 |     | Schedule H, Line 4j – Schedule of Reportable Transactions -Year ended December 31, 2024 |     | 22 |