| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
| 2 | Warwick Oil Corp. | Oil & Gas Operator | Mar 1990 | |
| 3 | Weaver Exploration Company | Oil & Gas Operator | Jun 1991 | |
| 4 | White Oak Operating Company LLC | Houston, TX 77077 | Oil & Gas Operator | May 2024 |
| 5 | Whittington Operating Company | Houston, TX 77069 | Oil & Gas Operator | May 2024 |
| 6 | Whitton Company, Inc. | Oil & Gas Operator | Jul 2020 | |
| 7 | Wintershall Corporation | Oil & Gas Operator | Oct 1989 | |
| 8 | Wintershall Oil & Gas Corp | Houston, TX 77027 | Oil & Gas Operator | Jul 1989 |
| 9 | Wle, Inc. | Oil & Gas Operator | Feb 2012 |