| 1 | W S Crude Oil Purchasing Inc | Oklahoma City, OK 73129-7613 | Oil & Gas Operator | May 2008 |
| 2 | Wadkins T Roy | Bartlesville, OK 74006 | Oil & Gas Operator | Nov 2019 |
| 3 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 4 | Westamerica Corporation | Dewey, OK 74029-0040 | Oil & Gas Operator | Aug 1999 |
| 5 | Westend Operating LLC | | Oil Operator | Feb 2024 |
| 6 | Western Oil And Gas Development Corp | Oklahoma City, OK 73103-3735 | Oil & Gas Operator | Mar 2024 |
| 7 | WFD Oil Corporation | Edmond, OK 73012-0619 | Oil & Gas Operator | Mar 2024 |
| 8 | White Alton L Trust | Nowata, OK 74048-0583 | Oil & Gas Operator | Aug 2013 |
| 9 | White Eagle Oil & Gas LLC | | Oil Operator | Feb 2024 |
| 10 | Wila Inc | | Oil Operator | Dec 2000 |
| 11 | Windward Development LLC | Tulsa, OK 74136-7007 | Oil & Gas Operator | Jul 2019 |
| 12 | Wise Oil & Gas Company LLC | Shawnee, OK 74801-8507 | Oil & Gas Operator | Feb 2024 |
| 13 | Woodward Iodine Corporation | Woodward, OK 73802-1245 | Oil & Gas Operator | Mar 2024 |
| 14 | Woolever Stephen L | Tulsa, OK 74108-2303 | Oil Operator | Jun 2023 |
| 15 | Worstell Oil & Gas Company | Collinsville, OK 74021 | Oil Operator | Nov 2005 |
| 16 | Wyatt'S Oil Corporation | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2024 |