Oil & Gas Companies in Cimarron County, OK
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | R C Taylor Operating Company LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 2 | R D T Properties | Tulsa, OK 74105-7122 | Oil & Gas Operator | Sep 2017 |
| 3 | Ra-Jac LLC | Norman, OK 73072 | Oil & Gas Operator | Jul 2025 |
| 4 | Ramco Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2006 |
| 5 | Ramsey Property Management LLC | Oklahoma City, OK 73120-1955 | Oil & Gas Operator | Jul 2025 |
| 6 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 7 | Range Production Company, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 8 | Red Ox Resources LLC | Dumas, TX 79029 | Gas Operator | Jun 2025 |
| 9 | Reno Resources Inc | Boynton, OK 74422-9762 | Oil & Gas Operator | May 2015 |
| 10 | Reserve Management, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Oct 2025 |
| 11 | RKK Production Company | Mustang, OK 73064 | Oil & Gas Operator | Jul 2025 |
| 12 | Roring Jr Roy W | Duncan, OK 73533-3048 | Oil & Gas Operator | Aug 2022 |
| 13 | Rupe Oil Company, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jun 2025 |
Production numbers shown above are only for Cimarron County, OK and for the production period listed.