| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Highmount Midwest Energy LLC | Oil & Gas Operator | Sep 2011 | |
| 2 | Hoy Production LLC | Gas Operator | Feb 2024 | |
| 3 | HRF Exploration & Production LLC | Gaylord, MI 49734-0160 | Gas Operator | Apr 2024 |
| 4 | HRF Exploration & Production,Inc | Denver, CO 80237 | Oil & Gas Operator | Mar 2009 |