A Report for Western Midstream Partners, LP Common Units Representing Limited Partner Interests (WES)

Filing Manager: OCCIDENTAL PETROLEUM CORP /DE/
Reporting Manager: Occidental Petroleum Corporation
Security: Western Midstream Partners, LP Common Units Representing Limited Partner Interests
Symbol: WES
Shares outstanding: 408,082,704 shares
Disclosed Ownership: 165,681,578 shares
Ownership: 41%
Form type: SCHEDULE 13D/A
Filing time: 21 Jan 2026, 20:42:11 UTC
Date of event: 16 Jan 2026
Next filing: 05 Feb 2026
SEC: View on sec.gov

Reporting Managers (11)

Name	Ownership	Shares Owned	shared voting power	Signature	Title	CIK
Occidental Petroleum Corporation	41%	165,681,578	165,681,578	/s/ Nicole E. Clark	Nicole E. Clark/Vice President, Corporate Secretary and Chief Compliance Officer	0000797468
OXY USA Inc.	41%	165,681,578	165,681,578	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
OXY Oil Partners, Inc.	41%	165,681,578	165,681,578	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Baseball Merger Sub 2, Inc.	41%	165,681,578	165,681,578	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Anadarko Petroleum Corporation	41%	165,681,578	165,681,578	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Western Gas Resources, Inc.	38%	156,677,369	156,677,369	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
APC Midstream Holdings, LLC	0.1%	457,849	457,849	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Anadarko Holding Company	2.2%	9,004,209	9,004,209	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Kerr-McGee Corporation	2.2%	9,004,209	9,004,209	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Kerr-McGee Worldwide Corporation	2.2%	9,004,209	9,004,209	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary
Anadarko USH1 Corporation	2.2%	9,004,209	9,004,209	/s/ Nicole E. Clark	Nicole E. Clark/Vice President and Secretary