[Form 4] Western Midstream Partners, LP Insider Trading Activity

Rhea-AI Filing Summary

Western Gas Resources, Inc., an Occidental Petroleum affiliate, transferred and surrendered 15,307,402 common units of Western Midstream Partners to the partnership on February 3, 2026 under a Unit Redemption Agreement tied to amendments of operating agreements.

After this transaction, WGRI holds 140,912,118 common units, APC Midstream Holdings, LLC holds 457,849 common units, and Anadarko USH1 Corporation holds 9,004,209 common units, all through a chain of entities that are wholly owned, directly or indirectly, by Occidental.

Insights

Equity capital markets analyst

Occidental affiliates redeemed 15,307,402 Western Midstream units with the issuer.

The filing shows Western Gas Resources, Inc. entered a Unit Redemption Agreement and on February 3, 2026 surrendered 15,307,402 Western Midstream common units to the issuer. The transaction is coded "J", indicating an event such as a redemption or other non-open-market transfer at a stated price of 0.0000 per unit.

Following the redemption, Occidental’s affiliate structure still collectively holds large positions: WGRI with 140,912,118 units, APC Midstream Holdings, LLC with 457,849, and Anadarko USH1 Corporation with 9,004,209. All are wholly owned, directly or indirectly, by Occidental Petroleum Corporation, so changes mainly affect how ownership is held within this corporate group rather than introducing a new outside holder.

The arrangement is tied to amendments to existing operating agreements, so future company disclosures about those amended terms may clarify how governance or economic rights evolve after this redemption.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

OCCIDENTAL PETROLEUM CORP /DE/

(Last) (First) (Middle)

5 GREENWAY PLAZA

SUITE 110

(Street)

HOUSTON TX 77046

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Western Midstream Partners, LP [ WES ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
COMMON UNITS (LIMITED PARTNER INTERESTS)	02/03/2026		J(1)		15,307,402	D	(1)	150,374,176	I	See Footnotes(2)(3)(4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

OCCIDENTAL PETROLEUM CORP /DE/

(Last) (First) (Middle)

5 GREENWAY PLAZA

SUITE 110

(Street)

HOUSTON TX 77046

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

WESTERN GAS RESOURCES INC

(Last) (First) (Middle)

1099 18TH STREET, SUITE 1200

(Street)

DENVER CO 80202-1955

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

APC Midstream Holdings, LLC

(Last) (First) (Middle)

5 GREENWAY PLAZA

SUITE 110

(Street)

HOUSTON TX 77046

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Kerr-McGee Worldwide Corp

(Last) (First) (Middle)

5 GREENWAY PLAZA

SUITE 110

(Street)

HOUSTON TX 77046

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Anadarko USH1 Corp

(Last) (First) (Middle)

5 GREENWAY PLAZA

SUITE 110

(Street)

HOUSTON TX 77046

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

KERR MCGEE CORP /DE

(Last) (First) (Middle)

5 GREENWAY PLAZA

SUITE 110

(Street)

HOUSTON TX 77046

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. On January 16, 2026, Western Gas Resources, Inc. ("WGRI") entered into a Unit Redemption Agreement with the Issuer and the other parties thereto, pursuant to which WGRI transferred and surrendered on February 3, 2026 an aggregate of 15,307,402 common units representing limited partner interests in the Issuer (the "Common Units") to the Issuer in connection with certain amendments to existing operating agreements, as described in the Unit Redemption Agreement.

2. Following the transaction reported herein, WGRI holds 140,912,118 Common Units, APC Midstream Holdings, LLC ("APCMH") holds 457,849 Common Units and Anadarko USH1 Corporation ("AUSHI") holds 9,004,209 Common Units. WGRI also is the sole member of Western Midstream Holdings, LLC, the 2% economic general partner of the Issuer.

3. OXY USA Inc. ("OXY USA") is a wholly owned subsidiary of Occidental Petroleum Corporation ("Occidental"). OXY USA owns 100% of the outstanding common stock of OXY Oil Partners, Inc. ("OOP"). OOP owns 100% of the outstanding common stock of Baseball Merger Sub 2, Inc. ("BMS").

4. Anadarko Petroleum Corporation ("APC") is a wholly owned subsidiary of BMS. APC owns (i) 100% of Anadarko Holding Company ("AHC") and (ii) indirectly, 100% of the common stock of WGRI and Kerr-McGee Corporation ("KMG"). WGRI is the sole member of APCMH. KMG and AHC together own 100% of the common stock of Kerr-McGee Worldwide Corporation ("KMWW"), and APC and KMWW together indirectly own 100% of the common stock of AUSH1. Accordingly, OXY USA, OOP, BMS, APC, AHC, WGRI, AUSH1, KMG, APCMH and KMWW are all direct or indirect wholly owned subsidiaries of Occidental.

Remarks:

Due to the limitations of the U.S. Securities and Exchange Commission's electronic filing system, each of Occidental, OXY USA, OOP, BMS, APC and AHC are concurrently filing a Form 4 to report the transaction disclosed herein.

	/s/ Nicole E. Clark of Western Gas Resources, Inc.	02/05/2026
	/s/ Nicole E. Clark of APC Midstream Holdings, LLC	02/05/2026
	/s/ Nicole E. Clark of Kerr-McGee Worldwide Corporation	02/05/2026
	/s/ Nicole E. Clark of Anadarko USH1 Corporation	02/05/2026
	/s/ Nicole E. Clark of Kerr-McGee Corporation	02/05/2026
	** Signature of Reporting Person	Date
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