| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Rampart Energy Company | Oil & Gas Operator | Dec 2024 | |
| 2 | Riley Leo M Co | Gas Operator | Oct 1998 | |
| 3 | Riverside Energy Michigan LLC | Oil & Gas Operator | Jul 2025 | |
| 4 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |