| 1 | W F D Oil Corp. | Edmond, OK 73012 | Oil & Gas Operator | Jan 2026 |
| 2 | W M Energy Corp | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2015 |
| 3 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 4 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 5 | Waterbridge Arkoma Operating LLC | Houston, TX 77056 | Oil Operator | Jan 2026 |
| 6 | Waterloo Exploration LLC | Tulsa, OK 74136-4226 | Gas Operator | Jan 2026 |
| 7 | Watkins J L | Henryetta, OK 74437 | Oil & Gas Operator | Feb 2026 |
| 8 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | May 2026 |
| 9 | Weinkauf Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 10 | Wentworth Operating Company | Oklahoma City, OK 73162-1863 | Oil & Gas Operator | Feb 2026 |
| 11 | Western Mountain Resources LLC | Cogan Station, PA 17728 | Oil & Gas Operator | Feb 2026 |
| 12 | Wheeler Energy Co. | Tulsa, OK 74101 | Oil & Gas Operator | Feb 2026 |
| 13 | Wheeler Energy, LLC | Tulsa, OK 74101 | Oil & Gas Operator | May 2026 |
| 14 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | Jan 2026 |
| 15 | Williams Doyle Dba BCF Gas | Tulsa, OK 74114-7099 | Oil & Gas Operator | Jul 2023 |
| 16 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Jan 2026 |
| 17 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 18 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 19 | Winston Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 2025 |
| 20 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 21 | Wolverine Petroleum Corp | Holdenville, OK 74848 | Oil & Gas Operator | Jul 1999 |
| 22 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 23 | WPX Energy Mid-Continent Co | Oklahoma City, OK 73102-5010 | Oil & Gas Operator | Apr 2016 |
| 24 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Jan 2026 |
| 25 | Wytex Production Corporation | Fort Smith, AR 72903 | Oil & Gas Operator | Jan 2026 |