| 1 | W.R. Guffey LLC | Dallas, TX 75206 | Oil & Gas Operator | Jul 2020 |
| 2 | Waggoner-Baldridge Oper. Co, Inc | Dallas, TX 75206 | Oil & Gas Operator | Jan 1998 |
| 3 | Wagner Energy LLC | Enid, OK 73701 | Oil Operator | Sep 2024 |
| 4 | Watco Energy, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Apr 1996 |
| 5 | WBR, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 1995 |
| 6 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Sep 2024 |
| 7 | Western Chief Oil & Gas Company | Graham, TX 76450 | Oil & Gas Operator | Jul 2009 |
| 8 | Western Pride Resources, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jan 2011 |
| 9 | Western Reserves Oil Co Inc | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 10 | Wilbanks, Bruce A. | Midland, TX 79701 | Oil & Gas Operator | Aug 1996 |
| 11 | Wilbanks, Bruce A. Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
| 12 | Willowbend Investments, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
| 13 | Winchester Operating, Inc. | Bryan, TX 77808 | Oil & Gas Operator | Aug 2001 |
| 14 | Winco Oil Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 15 | Window Operating Co., The | Coleman, TX 76834 | Oil & Gas Operator | Dec 2024 |
| 16 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 17 | WJC, Inc. | Post, TX 79356 | Oil & Gas Operator | Dec 2024 |
| 18 | WTG Exploration | Midland, TX 79705 | Oil & Gas Operator | Dec 2024 |
| 19 | WTG Exploration Inc | Midland, TX 79705 | Oil & Gas Operator | Dec 2023 |