| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Resource Development Technology LLC | Morrison, CO 80465 | Oil & Gas Operator | Oct 2020 |
| 2 | River Gas Corporation | Tuscaloosa, AL 35406-2233 | Gas Operator | Dec 2000 |
| 3 | Roemer Oil Company | Denver, CO 80202 | Oil & Gas Operator | Nov 1998 |
| 4 | Rose Petroleum (Utah) LLC | Annapolis, MD 21401 | Oil & Gas Operator | Mar 2024 |
| 5 | Rose, Verl | Spring Creek, NV 89815 | Oil & Gas Operator | Feb 2011 |
| 6 | Royale Energy Inc | San Diego, CA 92108-4518 | Oil & Gas Operator | Mar 2024 |
| 7 | Ruby, Glen Et Al | Oil & Gas Operator | Dec 1981 | |
| 8 | Running Foxes Petroleum Inc. | Centennial, CO 80112 | Oil & Gas Operator | Mar 2024 |