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KERR MCGEE CORP /DE

Disclosed activity across 1 company

Tapewire entity
67630
SEC CIK
0001141185

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Western Midstream Partners, LPWES · Entity 325810% ownerFebruary 03, 2026February 05, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
COMMON UNITS (LIMITED PARTNER INTERESTS)SEC Table I · non-derivativeIndirectSee Footnotes150,374,176 Reported balance After 2026-02-03 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2026-02-03 · Other · Disposed 15,307,402 · Balance 150,374,176

F1: 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.

F2: 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.

F3: 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").

F4: 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.

Filing footnotes · ownership attribution and instrument terms

F1: 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.

F2: 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.

F3: 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").

F4: 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 03, 2026 Filed Feb 5, 2026 22:32 UTC Western Midstream Partners, LP WES · Entity 3258 OtherCOMMON UNITS (LIMITED PARTNER INTERESTS) 15,307,402 Not disclosed Not disclosed
Disclosure

SEC source: 0001140361-26-003922 · form4.xml · nonDerivative · entry 1

OCCIDENTAL PETROLEUM CORP /DE/ · CIK 0000797468 · 10% owner

WESTERN GAS RESOURCES INC · CIK 0000856716 · 10% owner

APC Midstream Holdings, LLC · CIK 0001601306 · 10% owner

Kerr-McGee Worldwide Corp · CIK 0001699285 · 10% owner

Anadarko USH1 Corp · CIK 0001824936 · 10% owner

KERR MCGEE CORP /DE · CIK 0001141185 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 150,374,176

F1 · kind: 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.

F1 · price: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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").

F4 · ownership.nature: 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.

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August 14, 2024 Filed Aug 16, 2024 21:09 UTC Western Midstream Partners, LP WES · Entity 3258 SaleCOMMON UNITS (LIMITED PARTNER INTERESTS) 19,500,000 $35.75 $697,125,000.00
Disclosure

SEC source: 0000797468-24-000144 · wk-form4_1723842558.xml · nonDerivative · entry 1

OCCIDENTAL PETROLEUM CORP /DE/ · CIK 0000797468 · 10% owner

WESTERN GAS RESOURCES INC · CIK 0000856716 · 10% owner

APC Midstream Holdings, LLC · CIK 0001601306 · 10% owner

WGR Asset Holding Co LLC · CIK 0001771584 · 10% owner

Kerr-McGee Worldwide Corp · CIK 0001699285 · 10% owner

Anadarko USH1 Corp · CIK 0001824936 · 10% owner

KERR MCGEE CORP /DE · CIK 0001141185 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 165,681,578

F1 · kind: On August 14, 2024, WGR Asset Holding Company LLC ("WGRAH") and Anadarko USH1 Corporation ("AUSH1") sold 14,139,260 and 5,360,740 common units representing limited partner interests in the Issuer (the "Common Units"), respectively, in an underwritten public offering at a price of $35.75 per Common Unit.

F1 · price: On August 14, 2024, WGR Asset Holding Company LLC ("WGRAH") and Anadarko USH1 Corporation ("AUSH1") sold 14,139,260 and 5,360,740 common units representing limited partner interests in the Issuer (the "Common Units"), respectively, in an underwritten public offering at a price of $35.75 per Common Unit.

F2 · ownership.nature: Following the transaction reported herein, Western Gas Resources, Inc. ("WGRI") holds 156,219,520 Common Units, APC Midstream Holdings, LLC ("APCMH") holds 457,849 Common Units and 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.

F3 · ownership.nature: 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").

F4 · ownership.nature: 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, KMWW and WGRAH are all direct or indirect wholly owned subsidiaries of Occidental.

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September 12, 2023 Filed Sep 14, 2023 21:48 UTC Western Midstream Partners, LP WES · Entity 3258 SaleCOMMON UNITS (LIMITED PARTNER INTERESTS) 5,100,000 $25.00 $127,500,000.00
Disclosure

SEC source: 0001140361-23-044011 · form4.xml · nonDerivative · entry 1

OCCIDENTAL PETROLEUM CORP /DE/ · CIK 0000797468 · 10% owner

WESTERN GAS RESOURCES INC · CIK 0000856716 · 10% owner

APC Midstream Holdings, LLC · CIK 0001601306 · 10% owner

WGR Asset Holding Co LLC · CIK 0001771584 · 10% owner

Kerr-McGee Worldwide Corp · CIK 0001699285 · Former 10% Owner

Anadarko USH1 Corp · CIK 0001824936 · 10% owner

KERR MCGEE CORP /DE · CIK 0001141185 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 185,181,578

F1 · kind: On September 7, 2023, Western Midstream Partners, LP (the "Issuer") entered into a unit purchase agreement with Western Gas Resources, Inc. ("WGRI") pursuant to which the Issuer agreed to purchase 5,100,000 common units representing limited partner interests in the Issuer (the "Common Units") from WGRI at a price of $25.00 per Common Unit. WGRI and the Issuer completed the sale of such Common Units on September 12, 2023.

F1 · price: On September 7, 2023, Western Midstream Partners, LP (the "Issuer") entered into a unit purchase agreement with Western Gas Resources, Inc. ("WGRI") pursuant to which the Issuer agreed to purchase 5,100,000 common units representing limited partner interests in the Issuer (the "Common Units") from WGRI at a price of $25.00 per Common Unit. WGRI and the Issuer completed the sale of such Common Units on September 12, 2023.

F2 · ownership.nature: Following the transaction reported herein, WGRI holds 156,219,520 Common Units, WGR Asset Holding Company LLC ("WGRAH") holds 14,139,260 Common Units, APC Midstream Holdings, LLC ("APCMH") holds 457,849 Common Units and Anadarko USH1 Corporation ("Anadarko USH1") holds 14,364,949 Common Units. WGRI also is the sole member of Western Midstream Holdings, LLC, the 2% economic general partner of the Issuer.

F3 · ownership.nature: 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").

F4 · ownership.nature: 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, and APCMH is the sole member of WGRAH. 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 Anadarko USH1. Accordingly, OXY USA, OOP, BMS, APC, AHC, WGRI, Anadarko USH1, KMG, APCMH, WGRAH and KMWW are all direct or indirect wholly owned subsidiaries of Occidental.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.