EXHIBIT 23.1



            Consent of Independent Registered Public Accounting Firm
            --------------------------------------------------------


To the Board of Directors
Occidental Petroleum Corporation:

     We consent to the incorporation by reference in the registration statements
(Nos. 33-14662, 33-47636, 33-59395, 33-64719, 333-49207, 333-72719, 333-78031,
333-37970, 333-55404, 333-63444, 333-82246, 333-83124, 333-96951, 333-104827,
and 333-115099) on Forms S-3 and S-8 of Occidental Petroleum Corporation of our
report dated February 25, 2005, with respect to the consolidated balance sheets
of Occidental Petroleum Corporation as of December 31, 2004 and 2003, and the
related consolidated statements of operations, stockholders' equity,
comprehensive income, and cash flows for each of the years in the three-year
period ended December 31, 2004 and the related financial statement schedule,
management's assessment of the effectiveness of internal control over financial
reporting as of December 31, 2004 and the effectiveness of internal control over
financial reporting as of December 31, 2004, which reports appear in the
December 31, 2004 annual report on Form 10-K of Occidental Petroleum
Corporation. Our report on financial statements of Occidental Petroleum
Corporation refers to (i) a change in the method of accounting for inventories
purchased from third parties, (ii) a change in the method of accounting for
asset retirement obligations, (iii) a change in the method of accounting for the
consolidation of variable interest entities, (iv) a change in the method of
accounting for certain financial instruments with characteristics of both
liabilities and equity, and (v) a change in the method of accounting for the
impairment of goodwill and other intangibles.



/s/ KPMG LLP
Los Angeles, California
March 1, 2005