| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Robert A. Cohan | Oil & Gas Operator | Jan 2018 | |
| 2 | Romara Energy Inc. | Oil & Gas Operator | Dec 2017 | |
| 3 | Rosetta Resources Operating LP | San Antonio, TX 78216 | Oil & Gas Operator | May 2026 |
| 4 | Royale Energy Inc | San Diego, CA 92108-4518 | Oil & Gas Operator | Mar 2026 |