| 1 | W.O.G., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 2 | Waddell, Kent | Abilene, TX 79606 | Oil & Gas Operator | Nov 2010 |
| 3 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2024 |
| 4 | Waller, C.W. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Dec 2024 |
| 5 | Waters Petroleum | Albany, TX 76430 | Oil & Gas Operator | Aug 2016 |
| 6 | Weaver Global Operating, LLC | Colleyville, TX 76034 | Oil Operator | Dec 2024 |
| 7 | Wells Oilfield Services, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 8 | West-States Energy, Inc. | Rimrock, AZ 86335 | Oil Operator | Dec 2024 |
| 9 | Western Reserves Corporation | Abilene, TX 79608 | Oil & Gas Operator | Jan 2008 |
| 10 | Western Sky Oil & Gas | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 11 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 12 | Westridge Oil & Gas Properties | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2024 |
| 13 | Westwood Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2013 |
| 14 | White, Oscar | Tuscola, TX 79562 | Oil & Gas Operator | Dec 2024 |
| 15 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 16 | Whitt Oil & Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Dec 2024 |
| 17 | Whitt, W. J. | Albany, TX 76430 | Oil & Gas Operator | Nov 1996 |
| 18 | Wilbanks, Bruce A. | Midland, TX 79701 | Oil & Gas Operator | Aug 1996 |
| 19 | Wilbrook Exploration, Inc. | Lingleville, TX 76461 | Oil & Gas Operator | Aug 2003 |
| 20 | Williams Deville Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2024 |
| 21 | Wimsco, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 1994 |
| 22 | Winco Oil Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 23 | Winfrey Oil Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2016 |
| 24 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2024 |
| 25 | WM Wild Wolf Production LLC | Albany, TX 76430 | Oil Operator | Dec 2024 |