| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | H & R Exploratio | Oil Operator | Feb 1992 | |
| 2 | Harvest Energy Company | Englewood, CO 80110 | Oil & Gas Operator | Aug 2001 |
| 3 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |