| 1 | Walker Corporation (The) | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 2 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 3 | Walker Paul | Duncan, OK 73533-9782 | Oil & Gas Operator | Feb 2022 |
| 4 | Walling, Buster H | | Oil Operator | Jul 2022 |
| 5 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2025 |
| 6 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Mar 2025 |
| 7 | Warwick-Jupiter LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2025 |
| 8 | Washita Energy Inc | Pauls Valley, OK 73075-0923 | Oil & Gas Operator | Mar 2015 |
| 9 | Watertech Disposal | Enid, OK 73702-0125 | Oil Operator | Sep 2007 |
| 10 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Jun 2025 |
| 11 | Webber Wesley | Davis, OK 73030 | Oil & Gas Operator | Oct 2009 |
| 12 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Mar 2025 |
| 13 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Apr 2025 |
| 14 | Wetzel Producing Company | Duncan, OK 73533-4602 | Oil & Gas Operator | Apr 2025 |
| 15 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 16 | White Goat Resources LLC | Yukon, OK 73099 | Oil & Gas Operator | Apr 2025 |
| 17 | White Oak Production Company | Conway, AR 72034 | Oil & Gas Operator | Sep 2005 |
| 18 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2025 |
| 19 | Wible Limited Liability Co | Edmond, OK 73012 | Oil Operator | Oct 2024 |
| 20 | Wil-Mar Operations | Duncan, OK 73534-1566 | Oil & Gas Operator | Oct 2016 |
| 21 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 22 | Wild Outdoors Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | Apr 2025 |
| 23 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 24 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Jun 2025 |
| 25 | Wildwood Operating LLC | Hennessey, OK 73742-7711 | Oil & Gas Operator | Mar 2025 |
| 26 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 27 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 28 | Wilkinson Oil & Gas LLC | Duncan, OK 73533-2048 | Oil Operator | Apr 2025 |
| 29 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | Mar 2025 |
| 30 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Mar 2025 |
| 31 | Williford Energy Company | Tulsa, OK 74135 | Oil & Gas Operator | Jun 2025 |
| 32 | Williford Petroleum, L.L.C. | Green CV SPGS, FL 32043 | Oil & Gas Operator | Jun 2025 |
| 33 | Williford Resources, L.L.C. | Tulsa, OK 74136-1020 | Oil & Gas Operator | Apr 2025 |
| 34 | Wilson Charles R | Durant, OK 74701 | Oil Operator | Apr 2025 |
| 35 | Wilson Claude And Ila | Loco, OK 73442-9404 | Oil & Gas Operator | Mar 2025 |
| 36 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 37 | Wimberley James A | Dallas, TX 75229-6180 | Oil & Gas Operator | Nov 2014 |
| 38 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 39 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 40 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 41 | Wright Richard | Ratliff City, OK 73481-0155 | Oil & Gas Operator | Mar 2015 |
| 42 | Wylie Henry C | Ratliff City, OK 73481-0102 | Oil Operator | May 2020 |