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    Amendment: SEC Form SCHEDULE 13D/A filed by ProPetro Holding Corp.

    5/20/26 5:30:32 PM ET
    $PUMP
    Oilfield Services/Equipment
    Energy
    Get the next $PUMP alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13D

    Under the Securities Exchange Act of 1934

    (Amendment No. 2)


    ProPetro Holding Corp.

    (Name of Issuer)


    Common Stock, $0.001 par value per share

    (Title of Class of Securities)




    74347M108

    (CUSIP Number)
    James R. Chapman
    Exxon Mobil Corporation, 22777 Springwoods Village Parkway
    Spring, TX, 77389
    972-940-6000


    Ferrell M. Keel
    Jones Day, 2727 North Harwood Street
    Dallas, TX, 75201
    214-220-3939

    (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
    05/18/2026

    (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. Checkbox not checked

    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).




    schemaVersion:


    SCHEDULE 13D

    CUSIP Number(s):
    74347M108


    1 Name of reporting person

    Exxon Mobil Corporation
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    NEW JERSEY
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    0.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    0.00
    11Aggregate amount beneficially owned by each reporting person

    0.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    0 %
    14Type of Reporting Person (See Instructions)

    CO



    SCHEDULE 13D

    CUSIP Number(s):
    74347M108


    1 Name of reporting person

    Pioneer Natural Resources Company
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    0.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    0.00
    11Aggregate amount beneficially owned by each reporting person

    0.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    0 %
    14Type of Reporting Person (See Instructions)

    CO

    Comment for Type of Reporting Person:
    Row 1: Pioneer Natural Resources Company, a Delaware corporation ("Pioneer"), is a direct wholly owned subsidiary of Exxon Mobil Corporation ("Exxon Mobil").


    SCHEDULE 13D

    CUSIP Number(s):
    74347M108


    1 Name of reporting person

    Pioneer Natural Resources USA, Inc.
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    0.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    0.00
    11Aggregate amount beneficially owned by each reporting person

    0.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    0 %
    14Type of Reporting Person (See Instructions)

    CO

    Comment for Type of Reporting Person:
    Row 1: Pioneer Natural Resources USA, Inc., a Delaware corporation ("Pioneer USA"), is a direct wholly owned subsidiary of Pioneer.


    SCHEDULE 13D

    CUSIP Number(s):
    74347M108


    1 Name of reporting person

    Pioneer Natural Resources Pumping Services LLC
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    0.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    0.00
    11Aggregate amount beneficially owned by each reporting person

    0.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    0 %
    14Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:
    Row 1: Pioneer Natural Resources Pumping Services LLC, a Delaware limited liability company ("Pioneer Pumping Services" and, together with Exxon Mobil, Pioneer and Pioneer USA, the "Reporting Persons"), is a direct wholly owned subsidiary of Pioneer USA.


    SCHEDULE 13D

    Item 1.Security and Issuer
    (a)Title of Class of Securities:

    Common Stock, $0.001 par value per share
    (b)Name of Issuer:

    ProPetro Holding Corp.
    (c)Address of Issuer's Principal Executive Offices:

    One Marienfeld Place, 110 N. Marienfeld Street, Suite 300, Midland, TEXAS , 79701.
    Item 1 Comment:
    Explanatory Note: This Amendment No. 2 ("Amendment No. 2") is being filed by Exxon Mobil Corporation ("Exxon Mobil"), Pioneer Natural Resources Company ("Pioneer"), Pioneer Natural Resources USA, Inc. ("Pioneer USA") and Pioneer Natural Resources Pumping Services LLC ("Pioneer Pumping Services" and, together with Exxon Mobil, Pioneer and Pioneer USA, the "Reporting Persons"), and amends the Schedule 13D filed with the U.S. Securities and Exchange Commission on January 7, 2019, as amended by Amendment No. 1 filed on May 3, 2024 (as so amended prior to the date hereof, the "Original Schedule 13D" and, as amended by this Amendment No. 2, the "Schedule 13D"), by Pioneer, Pioneer USA and Pioneer Pumping Services relating to shares of common stock, par value $0.001 per share ("Common Stock"), of ProPetro Holding Corp., a Delaware corporation (the "Issuer"). Information reported in the Original Schedule 13D remains in effect except to the extent that it is amended, restated or superseded by information contained in this Amendment No. 2. Capitalized terms used but not defined in this Amendment No. 2 have the respective meanings set forth in the Original Schedule 13D.
    Item 2.Identity and Background
    (a)
    Item 2 is hereby amended and supplemented to include the updated Annex A hereto, which is incorporated herein by reference.
    Item 4.Purpose of Transaction
     
    Item 4 is hereby amended and supplemented to include the following: On May 20, 2026, the Reporting Persons monetized their investment via a sale of 16,600,000 shares of Common Stock of the Issuer in a block trade pursuant to Rule 144 of the Securities Act of 1933, at a price of $16.66 per share.
    Item 5.Interest in Securities of the Issuer
    (a)
    The responses of the Reporting Persons to Rows (7) through (11), and (13) of the cover pages of this Schedule 13D are incorporated herein by reference.
    (b)
    The responses of the Reporting Persons to Rows (7) through (11), and (13) of the cover pages of this Schedule 13D are incorporated herein by reference.
    (c)
    Except as set forth in Item 4 of this Amendment No. 2, which information is incorporated by reference into this Item 5(c), the Reporting Persons have not effected any transactions of the Common Stock during the 60 days preceding the date of this report.
    (e)
    On May 20, 2026, the Reporting Persons ceased to be beneficial owners of more than five percent of the Common Stock.
    Item 7.Material to be Filed as Exhibits.
     
    Item 7 is hereby amended and supplemented to include the following: 99.6 Annex A

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    Exxon Mobil Corporation
     
    Signature:/s/ James R. Chapman
    Name/Title:James R. Chapman, Vice President, Treasurer and Investor Relations
    Date:05/20/2026
     
    Pioneer Natural Resources Company
     
    Signature:/s/ Daniel A. Bates
    Name/Title:Daniel A. Bates, Executive Vice President
    Date:05/20/2026
     
    Pioneer Natural Resources USA, Inc.
     
    Signature:/s/ Daniel A. Bates
    Name/Title:Daniel A. Bates, Executive Vice President
    Date:05/20/2026
     
    Pioneer Natural Resources Pumping Services LLC
     
    Signature:/s/ Daniel A. Bates
    Name/Title:Daniel A. Bates, Executive Vice President
    Date:05/20/2026
    Get the next $PUMP alert in real time by email

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