| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Nov 2025 |
| 2 | Walsh Production Inc | Oil & Gas Operator | Dec 2007 | |
| 3 | Warner Ventures Inc | Oil Operator | Dec 2024 | |
| 4 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Sep 2025 |
| 5 | Western Operating Company | Denver, CO 80204 | Oil & Gas Operator | Aug 2025 |
| 6 | Wieser Oil LLC | Oil & Gas Operator | Dec 2024 | |
| 7 | Williams Inc | Oil Operator | Dec 2019 | |
| 8 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Jun 2025 |
| 9 | Wistrom | Oil Operator | Aug 2019 |