| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
| 2 | Wapiti Oil & Gas LLC | Houston, TX 77024 | Oil Operator | Dec 2011 |
| 3 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Jun 2025 |
| 4 | Wave Petroleum Operating LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 5 | West Gas Inc | Oil & Gas Operator | Dec 2017 | |
| 6 | Whisler Enterprise Company | Erie, CO 80516 | Oil & Gas Operator | Aug 2025 |
| 7 | Wilshire Enterprises Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 8 | Wyatt Petroleum Corporation | Evergreen, CO 80437 | Gas Operator | Jul 2002 |
| 9 | Wyoming Western Oil | Pine Bluffs, WY 82082 | Oil Operator | Sep 2019 |