| 1 | Rainwater, John | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2 | Ranger Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 3 | Ray Herring Estate | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 4 | Ray Herring Operating Co., LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 5 | Raylee Operating Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 6 | Reed, Robert T. | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 7 | Regal Energy Corporation | Rhome, TX 76078 | Oil & Gas Operator | Feb 2026 |
| 8 | Remington Oil | South Bend, TX 76481 | Oil & Gas Operator | Mar 2008 |
| 9 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 10 | Reneau Oil Co. | Shamrock, TX 79079 | Oil & Gas Operator | Feb 2026 |
| 11 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Feb 2026 |
| 12 | Republic Energy Inc. | Decatur, TX 76234 | Oil & Gas Operator | Dec 2016 |
| 13 | Revier, J. B. Prod. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Apr 1996 |
| 14 | Rhodes Disposal, Inc. | Bryson, TX 76427 | Oil Operator | Feb 2026 |
| 15 | Rhyne, J.V. | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 16 | Richards, Michael Dewain | Graham, TX 76450 | Oil & Gas Operator | Apr 2011 |
| 17 | Richey Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |
| 18 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Feb 2026 |
| 19 | Rico Oil Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 20 | Rife Energy Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2026 |
| 21 | Riggs Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 22 | Rimfire Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 23 | Rio Bravo Production, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 24 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 25 | RKW Operating LLC | Weatherford, TX 76085 | Gas Operator | Feb 2026 |
| 26 | RMR Oil Company | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2005 |
| 27 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Feb 2026 |
| 28 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 29 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 30 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Feb 2026 |
| 31 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Feb 2026 |
| 32 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 33 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Feb 2026 |
| 34 | Rogers Drilling Co. | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 35 | Rogers Oilfield Op, Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2019 |
| 36 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Feb 2026 |
| 37 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 38 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 39 | Rover Operating Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2000 |
| 40 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 41 | Royal Petroleum Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jan 2025 |
| 42 | Rubicon Energy, L.L.C. | Arlington, TX 76006 | Oil & Gas Operator | Sep 1999 |
| 43 | Rush, Charles Ray | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 44 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Feb 2026 |
| 45 | Ryan, Joseph G. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 46 | Ryder Scott Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 47 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |