| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Champlin Petroleum Co. | Rock Springs, WY 82902 | Oil & Gas Operator | Mar 1991 |
| 2 | Citation Oil & Gas Corp | Houston, TX 77269 | Oil & Gas Operator | Dec 2025 |
| 3 | Conoco Inc | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |