| 1 | R & R Energy, LTD. | Muenster, TX 76252 | Oil Operator | Apr 2024 |
| 2 | R. & R. Exploration, Inc. | Denton, TX 76202 | Oil Operator | Nov 1993 |
| 3 | Ramsey, Sid | Arlington, TX 76010 | Oil & Gas Operator | Aug 2012 |
| 4 | Raven Operating Group, Inc. | Sedalia, CO 80135 | Oil & Gas Operator | Dec 2010 |
| 5 | Reed Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Jun 2005 |
| 6 | Reed Production, Inc. | Gainesville, TX 76241 | Oil Operator | Apr 2024 |
| 7 | Richey Properties, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Apr 2024 |
| 8 | Richland Energy, Inc. | Irving, TX 75063 | Oil & Gas Operator | Apr 2024 |
| 9 | Rife Energy Operating, Inc. | Fort Worth, TX 76106 | Oil & Gas Operator | Apr 2024 |
| 10 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2024 |
| 11 | Rincon Production Co., Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 1997 |
| 12 | Ro-Jo, Inc. | Highland VLG, TX 75077 | Oil & Gas Operator | Aug 2003 |
| 13 | Roach, R. Byron Trustee | Judson, TX 75660 | Oil & Gas Operator | Mar 1999 |
| 14 | Robinett Resources Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 1999 |
| 15 | Rockin C Production, L.L.C. | Nocona, TX 76255 | Oil Operator | Apr 2024 |
| 16 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 17 | Rohmer, A. J. | Muenster, TX 76252 | Oil & Gas Operator | Apr 1997 |
| 18 | Rohmer, Tony S. | Muenster, TX 76252 | Oil & Gas Operator | Sep 2015 |
| 19 | Romco | Muenster, TX 76252 | Oil & Gas Operator | Mar 2015 |
| 20 | Ropa Exploration Corp. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2011 |
| 21 | Rowland Tank Truck Company | Sherman, TX 75090 | Oil & Gas Operator | Apr 2024 |