| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ward-Williston Company | Oil & Gas Operator | Apr 2014 | |
| 2 | White Butte Oil Operations, LLC | Oil & Gas Operator | Dec 2025 | |
| 3 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Feb 2026 |
| 4 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 5 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Jan 2025 |
| 6 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 7 | WPX Energy Williston, LLC | Oil & Gas Operator | Sep 2025 |