Company: OXY-WT
Filing Date: 2025-03-03
Form Type: 424B2
Source: 0001140361-25-006655
Chunk: 19

Company: OCCIDENTAL PETROLEUM CORP /DE/
Filing Date: 2025-03-03
Form: 424B2
Chunk 19
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 filed with the SEC. They contain important information about us and our financial condition.

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 Items 2.02 or 7.01 (and corresponding information furnished under Item 9.01 or included as an exhibit) in any past or future Current Report on Form 8-K that we file with the SEC, unless otherwise expressly specified in such report, is not incorporated by reference in this prospectus supplement. We will provide, without charge upon written or oral request, a copy of any or all of the documents which are incorporated by reference into this prospectus supplement. Requests should be directed to: Occidental Petroleum Corporation 5 Greenway Plaza, Suite 110 Houston, Texas 77046 Attn: Corporate Secretary Telephone: (713) 215-7000

S-12

#### TABLE OF CONTENTS

#### Prospectus

#### Senior Debt Securities

#### Subordinated Debt Securities

#### Common Stock

#### Preferred Stock

#### Warrants

#### Depositary Shares

#### Stock Purchase Contracts

#### Stock Purchase Units

#### Units
Occidental Petroleum Corporation may offer from time to time an indeterminate number of our senior debt securities, subordinated debt securities, common stock, preferred stock, warrants, depositary shares, stock purchase contracts, stock purchase units and units. We refer to our senior debt securities, subordinated debt securities, common stock, preferred stock, warrants, depositary shares, stock purchase contracts, stock purchase units and units collectively as the “securities” in this prospectus. The securities we may offer may be convertible into or exercisable or exchangeable for other securities. This prospectus describes the general terms of these securities and the general manner in which we will offer these securities. We will provide the specific terms of the securities in supplements to this prospectus. You should read this prospectus and any supplement carefully before you invest.

Occidental Petroleum Corporation common stock is traded on the New York Stock Exchange under the trading symbol “OXY.”

<div align='center'>**Investing in these securities involves risk. See “Risk Factors” beginning on page**</div>

#### 5

#### of this prospectus.
**Neither the U.S. Securities and Exchange Commission (the “SEC”) nor any state