| 1 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 2 | Walden E F | Ada, OK 74820 | Oil & Gas Operator | Aug 2014 |
| 3 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 4 | Ward Oil Company An Okla Corp | McAlester, OK 74501 | Oil & Gas Operator | Feb 1993 |
| 5 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Dec 2023 |
| 6 | Watkins J L | Morris, OK 74445-0325 | Oil & Gas Operator | Jan 2024 |
| 7 | Weatherly Nell M Estate | Ada, OK 74821-0669 | Oil & Gas Operator | Feb 1997 |
| 8 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 9 | Wells Jimme D | Ponca City, OK 74604 | Oil Operator | Jan 2024 |
| 10 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Jan 2024 |
| 11 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Jan 2024 |
| 12 | White Oak Production Company | Conway, AR 72034 | Oil & Gas Operator | Sep 2005 |
| 13 | Whittington Curtis | Stonewall, OK 74871-0482 | Oil & Gas Operator | Feb 2011 |
| 14 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 15 | Williams Brothers Engineering Company | Tulsa, OK 74134-5885 | Oil & Gas Operator | May 2013 |
| 16 | Williams Petroleum Company, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2024 |
| 17 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 18 | Woodward Iodine Corporation | Woodward, OK 73802-1245 | Oil & Gas Operator | Jan 2024 |
| 19 | Worldwide Energy Corp. | Freer, TX 78357 | Oil & Gas Operator | Jan 1997 |