| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 301 | West Texas Diversified Interests | Eastland, TX 76448 | Oil & Gas Operator | Jun 2006 |
| 302 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 303 | Williams Prod. Gulf Coast, L.P. | Benbrook, TX 76126 | Oil & Gas Operator | Jan 2012 |
| 304 | Wilson - Owens Production Co. | Longview, TX 75601 | Oil & Gas Operator | Nov 1998 |
| 305 | Wimco | Dallas, TX 75229 | Oil & Gas Operator | Jul 2008 |
| 306 | WTR Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 307 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Sep 2026 |