| 1 | R W Operating | Graford, TX 76449 | Oil & Gas Operator | Dec 2016 |
| 2 | Rainwater, John | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 3 | Ranger Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 4 | Raven Operating Group, Inc. | Sedalia, CO 80135 | Oil & Gas Operator | Dec 2010 |
| 5 | Ray Herring Estate | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 6 | Ray Herring Operating Co., LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 7 | Rayco Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 8 | Raylee Operating Company | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 9 | Red River Crude Oil LLC | Houston, TX 77081 | Oil Operator | Oct 2024 |
| 10 | Red Rock Resources, L.L.C. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2024 |
| 11 | Regal Petroleum Services | Euless, TX 76039 | Oil & Gas Operator | Aug 2002 |
| 12 | Remington Oil | South Bend, TX 76481 | Oil & Gas Operator | Mar 2008 |
| 13 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Mar 2025 |
| 14 | Republic Energy Operating, LLC | Decatur, TX 76234 | Oil & Gas Operator | Jan 2016 |
| 15 | Rhodes Drilling Company | Abilene, TX 79608 | Oil & Gas Operator | Sep 2000 |
| 16 | Rhyne, J.V. | Cisco, TX 76437 | Oil & Gas Operator | Mar 2025 |
| 17 | Richey Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2025 |
| 18 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Mar 2025 |
| 19 | Ridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 20 | Rife Energy Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2025 |
| 21 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2025 |
| 22 | Rife Operating, LTD. | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2005 |
| 23 | Rife, M. O., Jr. | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 1998 |
| 24 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 25 | RKW Operating LLC | Weatherford, TX 76085 | Gas Operator | Mar 2025 |
| 26 | RLB Enterprises, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Feb 1997 |
| 27 | Roanoke Corporation | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 1995 |
| 28 | Rob-Joe Gas & Oil Co. | Ranger, TX 76470 | Oil & Gas Operator | Mar 2025 |
| 29 | Rocker B Production, L.L.C. | Graham, TX 76450 | Gas Operator | Mar 2025 |
| 30 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2025 |
| 31 | Roco Petroleum, Incorporated | Abilene, TX 79605 | Oil & Gas Operator | Mar 2025 |
| 32 | Rogers Oilfield Op, Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2019 |
| 33 | Rollo Resources, LLC | Granbury, TX 76049 | Gas Operator | Mar 2025 |
| 34 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2025 |
| 35 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 36 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 37 | Rover Operating Company, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 38 | Roxanna Oil Company | Oklahoma City, OK 73120-2717 | Oil Operator | Aug 2016 |
| 39 | Royal Texan Resources Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 40 | Royal Texas Petroleum | Lago VIsta, TX 78645 | Oil & Gas Operator | Mar 2025 |
| 41 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Mar 2025 |
| 42 | Ryan, Joseph G. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |