| 1 | W F D Oil Corp. | Edmond, OK 73012 | Oil & Gas Operator | Dec 2025 |
| 2 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 3 | Warrior Exploration LLC | Sapulpa, OK 74067-1912 | Oil & Gas Operator | Aug 2025 |
| 4 | Wave Energy LLC | Jennings, OK 74038 | Oil Operator | Dec 2025 |
| 5 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 6 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Nov 2025 |
| 7 | Wells Edward K | Sapulpa, OK 74066-4243 | Oil & Gas Operator | Jun 2004 |
| 8 | Wessel Oil And Gas | Cushing, OK 74023-9580 | Oil & Gas Operator | Mar 2015 |
| 9 | Western Mountain Resources LLC | Cogan Station, PA 17728 | Oil & Gas Operator | Nov 2025 |
| 10 | Western Natl Resource Expl LLC | Oklahoma City, OK 73154-0755 | Oil & Gas Operator | Mar 2015 |
| 11 | Western Natural Resources Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Apr 2015 |
| 12 | Western Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2014 |
| 13 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Dec 2025 |
| 14 | Westwood Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2013 |
| 15 | Wheatley Equipment | Morrison, OK 73061-9345 | Oil & Gas Operator | Jul 2012 |
| 16 | White Star Petroleum LLC | Oklahoma City, OK 73116-7906 | Oil & Gas Operator | Nov 2025 |
| 17 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 18 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 19 | Williams Refractories Inc | Cushing, OK 74023 | Oil & Gas Operator | Feb 2015 |
| 20 | Williams Roger F | Tulsa, OK 74152-0951 | Oil & Gas Operator | May 2013 |
| 21 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 22 | Winney Construction Company | Forks, WA 98331-0801 | Oil & Gas Operator | Jan 2013 |
| 23 | WN Operating Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Nov 2025 |
| 24 | Wood Fay C Estate | Enid, OK 73703 | Oil & Gas Operator | Jun 2013 |
| 25 | World Oil | | Oil & Gas Operator | Nov 1998 |