| 1 | W&W Oil And Gas, Inc. | Muenster, TX 76252 | Oil Operator | Dec 2024 |
| 2 | W.E.S. Operating Company, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2011 |
| 3 | Waggoner-Baldridge Oper. Co, Inc | Dallas, TX 75206 | Oil & Gas Operator | Jan 1998 |
| 4 | Wako Oil Co. LLC | Graham, TX 76450 | Oil Operator | Dec 2024 |
| 5 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Dec 2024 |
| 6 | Walter Exploration Company | Dallas, TX 75206 | Oil & Gas Operator | Dec 2024 |
| 7 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 8 | Walter H. Husfeld Oil Co LLC | Bowie, TX 76230 | Oil & Gas Operator | Dec 2024 |
| 9 | Warnock Operating Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2013 |
| 10 | Watkins Production Company | Dallas, TX 75229 | Oil & Gas Operator | Feb 2008 |
| 11 | Watson Energy Investments, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2024 |
| 12 | WBH Energy Partners LLC | Austin, TX 78703 | Oil & Gas Operator | Dec 2024 |
| 13 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Sep 2024 |
| 14 | Westbrook Oil & Gas Co. Inc. | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2024 |
| 15 | Western Chief Oil & Gas Company | Graham, TX 76450 | Oil & Gas Operator | Jul 2009 |
| 16 | Western Chief Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 17 | Westside Energy Op. Co., LP | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2008 |
| 18 | WFW Production Company, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2024 |
| 19 | White Knight Production LLC | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2024 |
| 20 | Whitehead Prod. Co., Inc. | Humble, TX 77338 | Oil & Gas Operator | Oct 2024 |
| 21 | Wichita Operating Company, Inc. | Spring, TX 77393 | Oil & Gas Operator | May 2009 |
| 22 | Willowbend Investments, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2024 |
| 23 | Wills Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 24 | Winchester Exploration, Inc. | Arlington, TX 76013 | Oil & Gas Operator | Aug 2003 |
| 25 | Window Operating Co., The | Coleman, TX 76834 | Oil & Gas Operator | Dec 2024 |
| 26 | Wineland Oil - LLC | Hays, KS 67601 | Oil Operator | Jul 2024 |
| 27 | Winfield Operating Company | Dallas, TX 75214 | Oil & Gas Operator | Dec 2024 |
| 28 | Wise Exploration | Perrin, TX 76486 | Oil & Gas Operator | Dec 2024 |
| 29 | Wise Production Company | Bowie, TX 76230 | Oil & Gas Operator | Dec 2024 |
| 30 | Wise Well Service | Bowie, TX 76230 | Oil & Gas Operator | Jul 2017 |
| 31 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 32 | WJR Production LLC | Fort Worth, TX 76177 | Oil Operator | Dec 2024 |
| 33 | Wolsey Oil Inc. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2013 |
| 34 | Wolsey Well Service, Inc. | Windthorst, TX 76389 | Oil & Gas Operator | Jul 2006 |
| 35 | Wolsey Well Service, L.P. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2014 |
| 36 | Woodbine Petroleum, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Aug 2003 |
| 37 | Wooley Petroleum | Alvord, TX 76225 | Oil & Gas Operator | Oct 1994 |
| 38 | Wortham Operating, LLC | Holliday, TX 76366 | Oil & Gas Operator | Apr 2023 |
| 39 | WT Fitts Operating | Bowie, TX 76230 | Oil & Gas Operator | Dec 2024 |
| 40 | WTG Exploration | Midland, TX 79705 | Oil & Gas Operator | Dec 2024 |
| 41 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 42 | Wynne Petroleum Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 1997 |