| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ward-Williston Company | Oil & Gas Operator | Apr 2014 | |
| 2 | Wesco Operating Inc | Casper, WY 82602 | Oil & Gas Operator | Nov 2025 |
| 3 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 4 | Whiting Petroleum Corporation | Denver, CO 80290 | Oil & Gas Operator | Jan 2025 |