| 31001 | Wagon Wheel Production Company | Crawford, OK 73638-9502 | Oil & Gas Operator | Mar 2025 |
| 31002 | Wagoner, Walter M | | Oil Operator | Jun 2025 |
| 31003 | Wainoco Oil & Ga | | Oil & Gas Operator | Jan 1993 |
| 31004 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
| 31005 | Wakefield Oil Company, Inc. | Winfield, KS 67156 | Oil Operator | Aug 1999 |
| 31006 | Wako Oil Co. LLC | Graham, TX 76450 | Oil Operator | Nov 2025 |
| 31007 | Walbet | Monahans, TX 79756 | Oil & Gas Operator | Dec 1993 |
| 31008 | Walbet, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Nov 2025 |
| 31009 | Walcher Oil, LC | Bellevue, WA 98009 | Oil & Gas Operator | Jun 2025 |
| 31010 | Walcher, Wayne E. | Wichita, KS 67202 | Oil & Gas Operator | May 2024 |
| 31011 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 31012 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 31013 | Waldrop, L. E. | Houston, TX 77024 | Oil & Gas Operator | Jun 1996 |
| 31014 | Walgann Oil & Gas Inc | Sperry, OK 74073 | Oil Operator | Aug 2025 |
| 31015 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Nov 2025 |
| 31016 | Walker Billy R | Henryetta, OK 74437-0026 | Oil & Gas Operator | Sep 2014 |
| 31017 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 31018 | Walker David Wayne | Okemah, OK 74859-9731 | Oil & Gas Operator | Sep 2022 |
| 31019 | Walker Energy Group | Houston, TX 77215-1089 | Oil & Gas Operator | Jun 1992 |
| 31020 | Walker Energy, LLC | | Oil & Gas Operator | Nov 2024 |
| 31021 | Walker Ervin G | | Oil Operator | Jul 1992 |
| 31022 | Walker Explor & Prod Corp | Unknown, UT 99999 | Oil & Gas Operator | Dec 1989 |
| 31023 | Walker Gas Company | Romney, WV 25757-0000 | Oil & Gas Operator | Dec 2018 |
| 31024 | Walker Jeffery Scott | Owasso, OK 74055-7420 | Oil Operator | Jul 2025 |
| 31025 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 31026 | Walker L Willis | | Oil Operator | Dec 1985 |
| 31027 | Walker La. Properties | | Oil & Gas Operator | Oct 1990 |
| 31028 | Walker Management Company | | Oil & Gas Operator | Apr 1988 |
| 31029 | Walker Oil & Gas | Early, TX 76802 | Oil & Gas Operator | Dec 2002 |
| 31030 | Walker Oil & Gas Corporaton | Roswell, NM 88202 | Oil & Gas Operator | Oct 1998 |
| 31031 | Walker Oil And Gas Inc | | Oil & Gas Operator | Jun 2021 |
| 31032 | Walker Oil And Gas LTD | Snyder, TX 79550 | Oil Operator | Nov 2025 |
| 31033 | Walker Operating (I) | Wichita Falls, TX 76308 | Oil Operator | Nov 2025 |
| 31034 | Walker Paul | Duncan, OK 73533-9782 | Oil & Gas Operator | Feb 2022 |
| 31035 | Walker Resources Co, LLC | | Oil & Gas Operator | Dec 2013 |
| 31036 | Walker Tank Service, Inc | Utica, KS 67584 | Oil Operator | Aug 2022 |
| 31037 | Walker Well Service Inc | Big Bend, WV 26136-0000 | Oil & Gas Operator | Dec 2021 |
| 31038 | Walker'S Well Service | Gladewater, TX 75647 | Oil & Gas Operator | Aug 2003 |
| 31039 | Walker, Daniel J. | La Vernia, TX 78121 | Oil Operator | Nov 2025 |
| 31040 | Walker, Ervin Gilbert | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2020 |
| 31041 | Walker, Harrel L. | La Vernia, TX 78121 | Oil & Gas Operator | May 2023 |
| 31042 | Walker, Kent | Midland, TX 79704 | Oil & Gas Operator | Jun 2004 |
| 31043 | Walker, Tigner | Shreveport, LA 71138 | Oil & Gas Operator | Feb 2005 |
| 31044 | Walker-Wilson | | Oil & Gas Operator | Jul 1999 |
| 31045 | Walking X Oil Co. | Whiteface, TX 79379 | Oil & Gas Operator | Nov 2025 |
| 31046 | Wall Shelby | | Oil & Gas Operator | Oct 1998 |
| 31047 | Wallace D. Putman, Jr. | | Oil Operator | Jan 2025 |
| 31048 | Wallace Energy I | | Oil Operator | Mar 1990 |
| 31049 | Wallace Energy Inc | Denver, CO 80202-4327 | Oil Operator | Jun 2015 |
| 31050 | Wallace George C | Oklahoma City, OK 73120-0135 | Oil Operator | Nov 1994 |
| 31051 | Wallace John J Jr | Cooperstown, PA 16317-1909 | Oil & Gas Operator | Dec 2024 |
| 31052 | Wallace Oil & Ga | | Gas Operator | Oct 1995 |
| 31053 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Nov 2025 |
| 31054 | Wallace Operating Company | | Oil & Gas Operator | Sep 1986 |
| 31055 | Wallace Operating Company LLC | Metairie, LA 70003 | Gas Operator | Nov 2025 |
| 31056 | Wallace Sherrie D | Dewey, OK 74029 | Oil & Gas Operator | Jun 2025 |
| 31057 | Wallace, Drexel And June | New Milton, WV 26411-0000 | Oil & Gas Operator | Dec 2021 |
| 31058 | Wallace, Sharon J. | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 31059 | Wallen Production Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 31060 | Waller Brothers Inc | | Oil & Gas Operator | Jul 2004 |
| 31061 | Waller Oil, LLC | Stockton, KS 67669 | Oil Operator | Jun 2025 |
| 31062 | Waller, C.W. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Nov 2025 |
| 31063 | Wallick Petroleum Co | Reynoldsburg, OH 43068 | Oil & Gas Operator | Dec 1994 |
| 31064 | Walling, Buster H | | Oil Operator | Jul 2022 |
| 31065 | Wallis Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Nov 2025 |
| 31066 | Walls Energy, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 31067 | Walls, Charles A. | Caney, KS 67333 | Oil Operator | Aug 2016 |
| 31068 | Walls, G. M. & Frances, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2025 |
| 31069 | Wallway M J | Casper, WY 82601 | Oil & Gas Operator | Jan 1993 |
| 31070 | Wally Tucker | | Gas Operator | Dec 1994 |
| 31071 | Walrath Oil Co. LLC | | Oil Operator | Sep 2025 |
| 31072 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Nov 2025 |
| 31073 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Jul 2025 |
| 31074 | Walsh Jr F Howard Opr Co Inc | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2016 |
| 31075 | Walsh Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2022 |
| 31076 | Walsh Production Inc | | Oil & Gas Operator | Dec 2007 |
| 31077 | Walsh Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Nov 2025 |
| 31078 | Walsh, F H Jr. Operating Co. Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2019 |
| 31079 | Walsh, F. Howard, Jr. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 1994 |
| 31080 | Walter Black Warrior Basin LLC | | Gas Operator | Dec 2014 |
| 31081 | Walter E & Bernice N Darnall | | Oil Operator | Jun 2025 |
| 31082 | Walter Exploration Company | Dallas, TX 75206 | Oil & Gas Operator | Nov 2025 |
| 31083 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 31084 | Walter H. Husfeld Oil Co LLC | Bowie, TX 76230 | Oil & Gas Operator | Nov 2025 |
| 31085 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 31086 | Walter Parker Inc | Talala, OK 74080-3808 | Oil & Gas Operator | Jun 2025 |
| 31087 | Walter T. Lanaux | | Oil & Gas Operator | Nov 1990 |
| 31088 | Walter W. Heard, Jr. | | Oil & Gas Operator | Dec 1995 |
| 31089 | Walters Drilling | | Oil Operator | Mar 1988 |
| 31090 | Walters Frank | Pernell, OK 73076 | Oil & Gas Operator | Sep 2014 |
| 31091 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Aug 2025 |
| 31092 | Walters Oil LLC | Elmore City, OK 73433-8637 | Oil Operator | Apr 2020 |
| 31093 | Walters Oil Well Service Inc | Walters, OK 73572-0467 | Oil & Gas Operator | Nov 2000 |
| 31094 | Walters Production | | Oil Operator | Mar 2005 |
| 31095 | Walterscheid, A. D. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2014 |
| 31096 | Walterscheid, R. F. | Muenster, TX 76252 | Oil & Gas Operator | Oct 1993 |
| 31097 | Waltman Family LP | Maud, OK 74854-2603 | Oil Operator | Jun 2025 |
| 31098 | Waltman Oil & Gas | Maud, OK 74854-9739 | Oil Operator | Sep 2001 |
| 31099 | Walton Producing Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2005 |
| 31100 | Walton Producing Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2025 |