| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | R And B Energy Co LLC | Oil Operator | Dec 2011 | |
| 2 | Rainbow Oil And Gas Inc | Oil & Gas Operator | Jun 2016 | |
| 3 | Ranch Production Co | Oil & Gas Operator | Jul 2000 | |
| 4 | Range Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2000 |
| 5 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Feb 2024 |
| 6 | Reef Petroleum Corp | Oil & Gas Operator | Feb 1994 | |
| 7 | Rovsek Adolph E | Oil & Gas Operator | Oct 1991 |