| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | W. L. Estis | Oil & Gas Operator | Dec 1999 | |
| 2 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 3 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
| 4 | Watchtower Petroleum LLC | Oil & Gas Operator | Dec 2024 | |
| 5 | Wayne J. Spears | Oil & Gas Operator | Sep 2005 | |
| 6 | Wheless DRLG Co &R.M.Bergstein | Oil Operator | May 1986 | |
| 7 | White River Operating LLC | Gilmer, TX 75644 | Oil & Gas Operator | Dec 2024 |
| 8 | Wilcox Energy Company | Oil & Gas Operator | Dec 2024 | |
| 9 | Wilcox Operating Company | Oil Operator | Dec 1989 | |
| 10 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | Mar 2025 |
| 11 | Witt Oil Production, Inc. | Oil & Gas Operator | Nov 1984 | |
| 12 | World Oil & Gas Expl., Inc. | Oil & Gas Operator | Mar 1988 |