| 1 | R2Q Operating LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2025 |
| 2 | Ranger Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 3 | Raylee Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 4 | Red River Operating & DRLG. Co. | Electra, TX 76360 | Oil & Gas Operator | Jun 2025 |
| 5 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 6 | Revier Resources Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2005 |
| 7 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Jun 2025 |
| 8 | Rife Energy Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Jun 2025 |
| 9 | Rife, M. O., Jr. | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 1998 |
| 10 | Rio Bravo Production, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2025 |
| 11 | Rising Star Energy, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Aug 2006 |
| 12 | RLS Oil Company | Tulia, TX 79088 | Oil & Gas Operator | Jun 2025 |
| 13 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2025 |
| 14 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Jun 2025 |
| 15 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2025 |
| 16 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Jun 2025 |
| 17 | Rodgers, William L. | Fort Worth, TX 76147 | Oil & Gas Operator | Jan 1995 |
| 18 | Rogers Drilling Co. | Olney, TX 76374 | Oil & Gas Operator | Jun 2025 |
| 19 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 2025 |
| 20 | Ross, Dwight M. DRLG. Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 2025 |
| 21 | Royal Petroleum Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2025 |
| 22 | Rubis Oil, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2025 |
| 23 | Rucker, Gary | Archer City, TX 76351 | Oil & Gas Operator | Dec 2003 |
| 24 | Ruwco Oil And Gas Corp. | Austin, TX 78701 | Oil & Gas Operator | Aug 2021 |
| 25 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Jun 2025 |
| 26 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |