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    SEC Form SC 13D/A filed by Western Midstream Partners LP (Amendment)

    9/14/23 4:54:54 PM ET
    $WES
    Natural Gas Distribution
    Utilities
    Get the next $WES alert in real time by email
    SC 13D/A 1 ef20010691_sc13da.htm SC 13 D/A
    UNITED STATES
    SECURITIES AND EXCHANGE COMMISSION
    WASHINGTON, DC 20549

    SCHEDULE 13D
    Under the Securities Exchange Act of 1934
    (Amendment No. 6)


    Western Midstream Partners, LP
    (Name of Issuer)

    Common Units Representing Limited Partner Interests
    (Title of Class of Securities)

    958669 103
    (CUSIP Number)

    Nicole E. Clark
    5 Greenway Plaza, Suite 110
    Houston, Texas 77046
    (713) 215-7000
    (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

    September 7, 2023
    (Date of Event Which Requires Filing of This Statement)



    If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

    Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent.

    *The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosure provided in a prior cover page.

    The information required on the remainder of this cover page shall not be deemed to be filed for the purpose of section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).



    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Occidental Petroleum Corporation
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    185,181,578*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    185,181,578*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    185,181,578*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    48.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents (i) 156,219,520 common units representing limited partner interests in the Issuer (“Common Units”) held by Western Gas Resources, Inc. (“WGRI”), (ii) 457,849 Common Units held by APC Midstream Holdings, LLC (“AMH”), (iii) 14,364,949 Common Units held by Anadarko USH1 Corporation (“AUSH1”) and (iv) 14,139,260 Common Units held by WGR Asset Holding Company LLC (“WGRAH”). Occidental Petroleum Corporation (“Occidental”) indirectly owns 100% of the issued and outstanding common stock of Anadarko Petroleum Corporation (“Anadarko”), which directly or indirectly owns 100% of the issued and outstanding equity interests of WGRI, AMH, AUSH1 and WGRAH. Occidental may, therefore, be deemed to beneficially own the Common Units held by WGRI, AMH, AUSH1 and WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    OXY USA Inc.
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    185,181,578*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    185,181,578*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    185,181,578*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    48.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    CO
     
     
     
     
    * Represents (i) 156,219,520 Common Units held by WGRI, (ii) 457,849 Common Units held by AMH, (iii) 14,364,949 Common Units held by AUSH1 and (iv) 14,139,260 Common Units held by WGRAH. OXY USA Inc. indirectly owns 100% of the issued and outstanding common stock of Anadarko, which directly or indirectly owns 100% of the issued and outstanding equity interests of WGRI, AMH, AUSH1 and WGRAH. OXY USA Inc. may, therefore, be deemed to beneficially own the Common Units held by WGRI, AMH, AUSH1 and WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    OXY Oil Partners, Inc.
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    185,181,578*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    185,181,578*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    185,181,578*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    48.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    CO
     
     
     
     
    * Represents (i) 156,219,520 Common Units held by WGRI, (ii) 457,849 Common Units held by AMH, (iii) 14,364,949 Common Units held by AUSH1 and (iv) 14,139,260 Common Units held by WGRAH. OXY Oil Partners, Inc. indirectly owns 100% of the issued and outstanding common stock of Anadarko, which directly or indirectly owns 100% of the issued and outstanding equity interests of WGRI, AMH, AUSH1 and WGRAH. Oxy Oil Partners, Inc. may be deemed to beneficially own the Common Units held by WGRI, AMH, AUSH1 and WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Baseball Merger Sub 2, Inc.
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    185,181,578*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    185,181,578*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    185,181,578*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    48.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents (i) 156,219,520 Common Units held by WGRI, (ii) 457,849 Common Units held by AMH, (iii) 14,364,949 Common Units held by AUSH1 and (iv) 14,139,260 Common Units held by WGRAH. Baseball Merger Sub 2, Inc. indirectly owns 100% of the issued and outstanding common stock of Anadarko, which directly or indirectly owns 100% of the issued and outstanding equity interests of WGRI, AMH, AUSH1 and WGRAH. Baseball Merger Sub 2, Inc. may, therefore, be deemed to beneficially own the Common Units held by WGRI, AMH, AUSH1 and WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Anadarko Petroleum Corporation
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    185,181,578*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    185,181,578*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    185,181,578*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    48.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents (i) 156,219,520 Common Units held by WGRI, (ii) 457,849 Common Units held by AMH, (iii) 14,364,949 Common Units held by AUSH1 and (iv) 14,139,260 Common Units held by WGRAH. Anadarko directly or indirectly owns 100% of the issued and outstanding equity interests of WGRI, AMH, AUSH1 and WGRAH and may, therefore, be deemed to beneficially own the Common Units held by WGRI, AMH, AUSH1 and WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Western Gas Resources, Inc.
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    170,816,629*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    170,816,629*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    170,816,629*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    45.0%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents (i) 156,219,520 Common Units held by WGRI, (ii) 457,849 Common Units held by AMH and (iii) 14,139,260 Common Units held by WGRAH. In addition to its Common Units held of record, WGRI directly or indirectly owns 100% of the issued and outstanding equity interests of AMH and WGRAH and may, therefore, be deemed to beneficially own the Common Units held by AMH and WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    APC Midstream Holdings, LLC
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    14,597,109*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    14,597,109*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    14,597,109*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    3.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    OO - limited liability company
     
     
     
     
    * Represents (i) 457,849 Common Units held by AMH and (ii) 14,139,260 Common Units held by WGRAH. In addition to its Common Units held of record, AMH directly owns 100% of the issued and outstanding equity interests of WGRAH and may, therefore, be deemed to beneficially own the Common Units held by WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    WGR Asset Holding Company LLC
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    14,139,260*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    14,139,260*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    14,139,260*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    3.7%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    OO - limited liability company
     
     
     
     
    * Represents 14,139,260 Common Units held of record by WGRAH.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Anadarko Holding Company
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Utah
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    14,364,949*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    14,364,949*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    14,364,949*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    3.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents 14,364,949 Common Units held by AUSH1.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Kerr-McGee Corporation
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    14,364,949*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    14,364,949*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    14,364,949*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    3.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents 14,364,949 Common Units held by AUSH1.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Kerr-McGee Worldwide Corporation
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    14,364,949*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    14,364,949*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    14,364,949*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    3.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    HC; CO
     
     
     
     
    * Represents 14,364,949 Common Units held by AUSH1.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    CUSIP No.: 958669 103
    1
    NAMES OF REPORTING PERSONS
     
     
    Anadarko USH1 Corporation
     
     
     
     
    2
    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (a)
    ☐

    (b)
    ☐
     
     
    3
    SEC USE ONLY
     
     

     
     
     
     
    4
    SOURCE OF FUNDS (SEE INSTRUCTIONS)
     
     
    OO (please see Item 3)
     
     
     
     
    5
    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
     
    ☐

     
     
     
     
    6
    CITIZENSHIP OR PLACE OF ORGANIZATION
     
     
    Delaware
     
     
     
     
    NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
    7
    SOLE VOTING POWER
     
     
    0
     
     
     
     
    8
    SHARED VOTING POWER
     
     
    14,364,949*
     
     
     
     
    9
    SOLE DISPOSITIVE POWER
     
     
    0
     
     
     
     
    10
    SHARED DISPOSITIVE POWER
     
     
    14,364,949*
     
     
     
     
    11
    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     
     
    14,364,949*
     
     
     
     
    12
    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
     
    ☐

     
     
     
     
    13
    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     
     
    3.8%**
     
     
     
     
    14
    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
     
     
    CO
     
     
     
     
    * Represents 14,364,949 Common Units held of record by AUSH1.

    ** The calculation is based on a total of 384,614,611 Common Units issued and outstanding as of August 3, 2023 and gives effect to the Common Unit repurchase reported herein.


    Explanatory Note

    This Amendment No. 6 amends and supplements the Schedule 13D filed with the Securities and Exchange Commission on August 19, 2019 (the “Original Schedule 13D,” and as amended, the “Schedule 13D”) relating to the common units representing limited partner interests (the “Common Units”) in Western Midstream Partners, LP, a Delaware master limited partnership (the “Issuer”) beneficially owned by Occidental Petroleum Corporation (“Occidental”), OXY USA Inc. (“OXY USA”), OXY Oil Partners, Inc. (“OOP”), Baseball Merger Sub 2, Inc. (“BMS”), Anadarko Petroleum Corporation (“Anadarko”), Western Gas Resources, Inc. (“WGRI”), APC Midstream Holdings, LLC (“AMH”), WGR Asset Holding Company LLC (“WGRAH”), Anadarko Holding Company (“AHC”), Kerr-McGee Corporation (“KMG”), Kerr-McGee Worldwide Corporation (“KWC”) and Anadarko USH1 Corporation (“AUSH1” and together with Occidental, OXY USA, OOP, BMS, Anadarko, WGRI, AMH, WGRAH, AHC and KWC, the “Reporting Persons”). Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Original Schedule 13D and subsequent amendments, as applicable.

    The filing of this Amendment No. 6 shall not be construed as an admission that any of the Reporting Persons is for the purposes of Section 13(d) or 13(g) of the Securities Exchange Act of 1934, the beneficial owner of any of the Common Units reported herein. Pursuant to Rule 13d-4, each of the Reporting Persons disclaims all such beneficial ownership in any such Common Units.

    Item 3.
    Source and Amount of Funds or Other Consideration.

    Item 3 of the Schedule 13D is hereby amended and supplemented by adding the following:

    The description of the transaction contemplated by the Third Unit Purchase Agreement (as defined below) in Item 4 of this Schedule 13D is hereby incorporated by reference into this Item 3.

    Item 4.
    Purpose of Transaction.

    Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following:

    September 2023 Issuer Repurchase

    On September 7, 2023, the Issuer entered into a Unit Purchase Agreement with WGRI (the “Third Unit Purchase Agreement”), pursuant to which, on September 12, 2023, the Issuer repurchased 5,100,000 Common Units held by WGRI for a purchase price of $25.00 per Common Unit, representing an aggregate purchase price of $127,500,000.

    The foregoing description of the Third Unit Purchase Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Third Unit Purchase Agreement, which is incorporated by reference as Exhibit AB.

    Item 5.
    Interest in Securities of the Issuer.

    Item 5 of the Schedule 13D is hereby amended and restated in its entirety as follows:

    (a) and (b) See the information on the cover pages of this Amendment No. 5 to the Schedule 13D, which is incorporated by reference herein.

    (c) None of the Reporting Persons, or to the Reporting Persons’ knowledge, none of the Listed Persons, has effected any transactions in the Common Units during the past 60 days, other than as described in Item 4 of this Amendment No. 5 to the Schedule 13D.

    (d) The Reporting Persons have the right to receive distributions from, and the proceeds from the sale of, the respective Common Units reported by such persons on the cover pages of the Schedule 13D and in this Item 5.  Except for the foregoing, no other person is known by the Reporting Persons to have the right to receive or the power to direct the receipt of distributions from, or the proceeds from the sale of, Common Units beneficially owned by the Reporting Persons or, to the Reporting Persons’ knowledge, the Listed Persons.


    (e) Not applicable.

    Item 6.
    Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

    Item 6 is hereby amended and supplemented by adding the following:

    The description of the Third Unit Purchase Agreement in Item 4 above is hereby incorporated by reference into this Item 6. A copy of the Third Unit Purchase Agreement is included as an exhibit to this filing.

    Item 7.
    Material to be Filed as Exhibits.

    Item 7 of the Schedule 13D is hereby amended and supplemented by inserting the following exhibit:

    Exhibit
    AB
     Unit Purchase Agreement, dated as of September 7, 2023, by and between Western Gas Resources, Inc. and Western Midstream Partners, LP.
     

    SIGNATURES

    After reasonable inquiry and to the best of their knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct.
    Date: September 14, 2023
     
    OCCIDENTAL PETROLEUM CORPORATION
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President, Corporate Secretary and Chief Compliance Officer
     
     
    OXY USA INC.
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    OXY OIL PARTNERS, INC.
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    BASEBALL MERGER SUB 2, INC.
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     

     
    ANADARKO PETROLEUM CORPORATION
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    WESTERN GAS RESOURCES, INC.
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    APC MIDSTREAM HOLDINGS, LLC
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    WGR ASSET HOLDING COMPANY LLC
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    ANADARKO HOLDING COMPANY
     
         
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    KERR-MCGEE CORPORATION
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    KERR-MCGEE WORLDWIDE CORPORATION
     
           
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     
     
    ANADARKO USH1 CORPORATION
     
         
     
    By:
    /s/ Nicole E. Clark
     
       
    Name:
    Nicole E. Clark
     
       
    Title:
    Vice President and Secretary
     



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