| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Unioil | Denver, CO 80203 | Oil & Gas Operator | Jun 2012 |
| 2 | United States Exploration, Inc. | Denver, CO 80802 | Oil & Gas Operator | Jun 2009 |
| 3 | Upland Exploration LLC | Oil & Gas Operator | Jan 2024 |