| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | W. E. O'Malley Inc. | Oil & Gas Operator | Jun 1991 | |
| 2 | W.I.F.T. Operating, LLC | Oil & Gas Operator | Feb 2026 | |
| 3 | Watchtower Petroleum, LLC | Oil & Gas Operator | Jun 2025 | |
| 4 | White River Operating LLC | Gilmer, TX 75644 | Oil & Gas Operator | Jan 2026 |
| 5 | Whitehead, Cecil | Oil Operator | May 1997 | |
| 6 | Wickham, R. R. | Oil Operator | Jan 1980 | |
| 7 | Wilcox Energy Company | Oil & Gas Operator | Jan 2026 | |
| 8 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | Apr 2026 |
| 9 | Wilcox Ventures, LLC | Oil & Gas Operator | Feb 2026 | |
| 10 | Williams Producing Co | Oil & Gas Operator | Jan 2026 | |
| 11 | Williams, Kenneth O. Jr | Oil Operator | Nov 2006 |