| 31101 | Walbet | Monahans, TX 79756 | Oil & Gas Operator | Dec 1993 |
| 31102 | Walbet, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2025 |
| 31103 | Walcher Oil, LC | Bellevue, WA 98009 | Oil & Gas Operator | Feb 2025 |
| 31104 | Walcher, Wayne E. | Wichita, KS 67202 | Oil & Gas Operator | May 2024 |
| 31105 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 31106 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 31107 | Waldrop, L. E. | Houston, TX 77024 | Oil & Gas Operator | Jun 1996 |
| 31108 | Walgann Oil & Gas Inc | Sperry, OK 74073 | Oil Operator | Mar 2025 |
| 31109 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Jul 2025 |
| 31110 | Walker Billy R | Henryetta, OK 74437-0026 | Oil & Gas Operator | Sep 2014 |
| 31111 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 31112 | Walker David Wayne | Okemah, OK 74859-9731 | Oil & Gas Operator | Sep 2022 |
| 31113 | Walker Energy Group | Houston, TX 77215-1089 | Oil & Gas Operator | Jun 1992 |
| 31114 | Walker Energy, LLC | | Oil & Gas Operator | Nov 2024 |
| 31115 | Walker Ervin G | | Oil Operator | Jul 1992 |
| 31116 | Walker Explor & Prod Corp | Unknown, UT 99999 | Oil & Gas Operator | Dec 1989 |
| 31117 | Walker Gas Company | Romney, WV 25757-0000 | Oil & Gas Operator | Dec 2018 |
| 31118 | Walker Jeffery Scott | Owasso, OK 74055-7420 | Oil Operator | Apr 2025 |
| 31119 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 31120 | Walker L Willis | | Oil Operator | Dec 1985 |
| 31121 | Walker La. Properties | | Oil & Gas Operator | Oct 1990 |
| 31122 | Walker Management Company | | Oil & Gas Operator | Apr 1988 |
| 31123 | Walker Oil & Gas | Early, TX 76802 | Oil & Gas Operator | Dec 2002 |
| 31124 | Walker Oil & Gas Co LLC* Keith F | | Oil & Gas Operator | Jun 2011 |
| 31125 | Walker Oil & Gas Corporaton | Roswell, NM 88202 | Oil & Gas Operator | Oct 1998 |
| 31126 | Walker Oil And Gas Inc | | Oil & Gas Operator | Jun 2021 |
| 31127 | Walker Oil And Gas LTD | Snyder, TX 79550 | Oil Operator | Jul 2025 |
| 31128 | Walker Operating (I) | Wichita Falls, TX 76308 | Oil Operator | Jul 2025 |
| 31129 | Walker Paul | Duncan, OK 73533-9782 | Oil & Gas Operator | Feb 2022 |
| 31130 | Walker Resources Co, LLC | | Oil & Gas Operator | Dec 2013 |
| 31131 | Walker Tank Service, Inc | Utica, KS 67584 | Oil Operator | Aug 2022 |
| 31132 | Walker Well Service Inc | Big Bend, WV 26136-0000 | Oil & Gas Operator | Dec 2021 |
| 31133 | Walker'S Well Service | Gladewater, TX 75647 | Oil & Gas Operator | Aug 2003 |
| 31134 | Walker, Daniel J. | La Vernia, TX 78121 | Oil Operator | Jul 2025 |
| 31135 | Walker, Ervin Gilbert | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2020 |
| 31136 | Walker, Harrel L. | La Vernia, TX 78121 | Oil & Gas Operator | May 2023 |
| 31137 | Walker, Kent | Midland, TX 79704 | Oil & Gas Operator | Jun 2004 |
| 31138 | Walker, Tigner | Shreveport, LA 71138 | Oil & Gas Operator | Feb 2005 |
| 31139 | Walker-Wilson | | Oil & Gas Operator | Jul 1999 |
| 31140 | Walking X Oil Co. | Whiteface, TX 79379 | Oil & Gas Operator | Jul 2025 |
| 31141 | Wall Shelby | | Oil & Gas Operator | Oct 1998 |
| 31142 | Wallace D. Putman, Jr. | | Oil Operator | Jan 2025 |
| 31143 | Wallace Energy I | | Oil Operator | Mar 1990 |
| 31144 | Wallace Energy, Inc. | Denver, CO 80202-4327 | Oil Operator | Jun 2015 |
| 31145 | Wallace George C | Oklahoma City, OK 73120-0135 | Oil Operator | Nov 1994 |
| 31146 | Wallace John J Jr | Cooperstown, PA 16317-1909 | Oil & Gas Operator | Dec 2024 |
| 31147 | Wallace Oil & Ga | | Gas Operator | Oct 1995 |
| 31148 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Jul 2025 |
| 31149 | Wallace Operating Company | | Oil & Gas Operator | Sep 1986 |
| 31150 | Wallace Sherrie D | Dewey, OK 74029 | Oil & Gas Operator | Apr 2025 |
| 31151 | Wallace, Drexel And June | New Milton, WV 26411-0000 | Oil & Gas Operator | Dec 2021 |
| 31152 | Wallace, Sharon J. | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 31153 | Wallen Production Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 31154 | Waller Brothers, Inc. | | Oil & Gas Operator | Jul 2004 |
| 31155 | Waller Oil, LLC | Stockton, KS 67669 | Oil Operator | Feb 2025 |
| 31156 | Waller, C.W. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 31157 | Wallick Petroleum Co | Reynoldsburg, OH 43068 | Oil & Gas Operator | Dec 1994 |
| 31158 | Walling, Buster H | | Oil Operator | Jul 2022 |
| 31159 | Wallis Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 31160 | Walls Energy, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 31161 | Walls, Charles A. | Caney, KS 67333 | Oil Operator | Aug 2016 |
| 31162 | Walls, G. M. & Frances, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Jul 2025 |
| 31163 | Wallway M J | Casper, WY 82601 | Oil & Gas Operator | Jan 1993 |
| 31164 | Wally Tucker | | Gas Operator | Dec 1994 |
| 31165 | Walrath Oil Co. LLC | | Oil Operator | May 2025 |
| 31166 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Jul 2025 |
| 31167 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Apr 2025 |
| 31168 | Walsh Jr F Howard Opr Co Inc | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2016 |
| 31169 | Walsh Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2022 |
| 31170 | Walsh Production Inc | | Oil & Gas Operator | Nov 2008 |
| 31171 | Walsh Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Jul 2025 |
| 31172 | Walsh, F H Jr. Operating Co. Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2019 |
| 31173 | Walsh, F. Howard, Jr. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 1994 |
| 31174 | Walter Black Warrior Basin LLC | | Gas Operator | Dec 2014 |
| 31175 | Walter E & Bernice N Darnall | | Oil Operator | Apr 2025 |
| 31176 | Walter Exploration Company | Dallas, TX 75206 | Oil & Gas Operator | Jul 2025 |
| 31177 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 31178 | Walter H. Husfeld Oil Co LLC | Bowie, TX 76230 | Oil & Gas Operator | Jul 2025 |
| 31179 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 31180 | Walter Parker Inc | Talala, OK 74080-3808 | Oil & Gas Operator | Mar 2025 |
| 31181 | Walter T. Lanaux | | Oil & Gas Operator | Nov 1990 |
| 31182 | Walter W. Heard, Jr. | | Oil & Gas Operator | Dec 1995 |
| 31183 | Walters Drilling | | Oil Operator | Mar 1988 |
| 31184 | Walters Frank | Pernell, OK 73076 | Oil & Gas Operator | Sep 2014 |
| 31185 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Apr 2025 |
| 31186 | Walters Oil LLC | Elmore City, OK 73433-8637 | Oil Operator | Apr 2020 |
| 31187 | Walters Oil Well Service Inc | Walters, OK 73572-0467 | Oil & Gas Operator | Nov 2000 |
| 31188 | Walters Production | | Oil Operator | Mar 2005 |
| 31189 | Walterscheid, A. D. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2014 |
| 31190 | Walterscheid, R. F. | Muenster, TX 76252 | Oil & Gas Operator | Oct 1993 |
| 31191 | Waltman Family LP | Maud, OK 74854-2603 | Oil Operator | Apr 2025 |
| 31192 | Waltman Oil & Gas | Maud, OK 74854-9739 | Oil Operator | Sep 2001 |
| 31193 | Walton Producing Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2005 |
| 31194 | Walton Producing Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 31195 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 31196 | Walton, James A. | Midland, TX 79702 | Oil & Gas Operator | Oct 1994 |
| 31197 | Walton, Tara | Copan, OK 74022 | Oil Operator | Oct 2024 |
| 31198 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 31199 | Wam Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2016 |
| 31200 | Wandering Star Partners #1 LLLP | | Oil & Gas Operator | Apr 2015 |