| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 2 | Natural Gas Processing Company | Worland, WY 82401 | Oil & Gas Operator | Sep 2024 |
| 3 | Nepeco | Byron, WY 82412 | Oil Operator | Sep 2024 |