| 1 | R & P Operating | Tuscola, TX 79562 | Oil & Gas Operator | Jun 1997 |
| 2 | R & R Well Service | Fort Worth, TX 76120 | Oil & Gas Operator | Jan 2005 |
| 3 | R & R Well Service, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Dec 2024 |
| 4 | Ram Operating Inc. | Browns, IL 62818 | Oil & Gas Operator | Aug 2008 |
| 5 | Ranger Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 6 | Ratex Energy Inc. | Manchaca, TX 78652 | Oil & Gas Operator | Sep 2002 |
| 7 | Ratts, Robert V. Inc. | Bedford, TX 76021 | Oil & Gas Operator | Aug 2003 |
| 8 | Rayco Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2024 |
| 9 | RBD-Shelby Agency | Dallas, TX 75283 | Oil & Gas Operator | Dec 1993 |
| 10 | Red Willow Production, LLC | Ignacio, CO 81137 | Oil & Gas Operator | Oct 2015 |
| 11 | Red-Tex Petroleum, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Aug 2003 |
| 12 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Dec 2024 |
| 13 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Dec 2024 |
| 14 | Resource Expl & Prod, Inc. | Salado, TX 76571 | Oil & Gas Operator | Dec 2024 |
| 15 | Revard Petroleum, L.L.C. | Tulsa, OK 74170 | Oil & Gas Operator | Dec 2024 |
| 16 | Rhyne, J.V. | Cisco, TX 76437 | Oil & Gas Operator | Dec 2024 |
| 17 | Riata Energy Inc | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2008 |
| 18 | Rice Drilling Company | Santa Anna, TX 76878 | Oil & Gas Operator | Dec 2024 |
| 19 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 20 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Dec 2024 |
| 21 | Ridglea Energy I, LLC | Spring, TX 77379 | Oil & Gas Operator | Dec 2024 |
| 22 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2024 |
| 23 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2024 |
| 24 | Rivercity Operating, Inc. | Austin, TX 78766 | Oil & Gas Operator | Dec 2024 |
| 25 | Ro-Jo, Inc. | Highland VLG, TX 75077 | Oil & Gas Operator | Aug 2003 |
| 26 | Robertson Resources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Dec 2024 |
| 27 | Robertson, French M. Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 1995 |
| 28 | Rockwood Resources Inc | Coleman, TX 76834 | Oil & Gas Operator | Dec 2024 |
| 29 | Roco Petroleum, Incorporated | Abilene, TX 79605 | Oil & Gas Operator | Dec 2024 |
| 30 | Rosson, Robert K. | Novice, TX 79538 | Oil & Gas Operator | Aug 2003 |
| 31 | Rough Creek Exploration, Inc. | Santa Anna, TX 76878 | Oil & Gas Operator | Jan 1996 |
| 32 | Royal Texan Resources Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 33 | Rust Oil Corp. | Fort Worth, TX 76108 | Oil & Gas Operator | Dec 2024 |
| 34 | Ruthson Energy, Inc. | Judson, TX 75660 | Oil Operator | Dec 2024 |
| 35 | RWJ Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 36 | Ryholland Fielder, Inc | Delray Beach, FL 33446 | Oil & Gas Operator | Dec 2024 |