UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) May 22, 2007

OCCIDENTAL PETROLEUM CORPORATION

(Exact name of registrant as specified in its charter)

Delaware |  | 1-9210 |  | 95-4035997
(State or other jurisdiction |  | (Commission |  | (I.R.S. Employer
of incorporation) |  | File Number) |  | Identification No.)

10889 Wilshire Boulevard |  |
Los Angeles, California |  | 90024
(Address of principal executive offices) |  | (ZIP code)

Registrant’s telephone number, including area code:

(310) 208-8800

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Section 7 — Regulation FD

Item 7.01. Regulation FD Disclosure

Attached as Exhibit 99.1 is a presentation made by Occidental management in connection with the May 23, 2007, UBS 2007 Global Oil & Gas Conference.

Section 9 - Financial Statements and Exhibits

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1 Presentation of May 23, 2007.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

|  | OCCIDENTAL PETROLEUM CORPORATION
|  | (Registrant)
DATE: May 22, 2007 |  | /s/ Jim A. Leonard
|  | Jim A. Leonard, Vice President and Controller
|  | (Principal Accounting and Duly Authorized Officer)

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EXHIBIT INDEX

99.1 Presentation of May 23, 2007.

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