OCCIDENTAL PETROLEUM CORP /DE/

For the period ended Mar 31, 2026. Filed May 5, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed May 5, 2026

OXY$56.38+0.0%Stored close · as of Nov 6, 2026

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Contents

Item 6. Exhibits

4.1	Fifth Supplemental Indenture to that certain Indenture, dated as of August 8, 2019, by and between Occidental Petroleum Corporation and The Bank of New York Mellon Trust Company, N.A. (filed as Exhibit 4.1 to the Current Report on Form 8-K dated March 5, 2026, File No. 1-9210).
10.1^*	Form of Occidental Petroleum Corporation 2015 Long-Term Incentive Plan Notice of Grant of Cash Return on Capital Employed Incentive Award.
31.1*	Certification of CEO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of CFO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certifications of CEO and CFO Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*	Inline XBRL Instance Document.
101.SCH*	Inline XBRL Taxonomy Extension Schema Document.
101.CAL*	Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.LAB*	Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE*	Inline XBRL Taxonomy Extension Presentation Linkbase Document.
101.DEF*	Inline XBRL Taxonomy Extension Definition Linkbase Document.
104*	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

^ Indicates a management contract or compensatory plan or arrangement.

Filed herewith.

** Furnished herewith.

SIGNATURES

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 thereunto duly authorized.

OCCIDENTAL PETROLEUM CORPORATION

May 5, 2026	/s/ Christopher O. Champion
	Christopher O. Champion
	Vice President, Chief Accounting Officer and Controller

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