| 1 | R & C Petroleum, Inc. | Flint, TX 75762 | Oil & Gas Operator | Mar 2025 |
| 2 | R. Lacy Services, LTD. | Longview, TX 75606 | Oil & Gas Operator | Mar 2025 |
| 3 | Rawlins Operating Company, LLC | Elkhart, TX 75839 | Oil & Gas Operator | Mar 2025 |
| 4 | Redmon Oil Company, Inc., The | Plano, TX 75023 | Oil & Gas Operator | Mar 2025 |
| 5 | Regal Energy Operating, L.L.C. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 6 | Reserve Operating Corp. | Houston, TX 77040 | Oil & Gas Operator | Mar 2025 |
| 7 | Reserve Production, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Mar 2008 |
| 8 | Richey Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2025 |
| 9 | Richey Properties, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2025 |
| 10 | Ridge Petroleum Inc. | Tyler, TX 75701 | Oil & Gas Operator | Mar 2025 |
| 11 | Ridley Oil Corporation | Tyler, TX 75702 | Oil & Gas Operator | Nov 1996 |
| 12 | Rippy Oil Company | Tyler, TX 75702 | Oil & Gas Operator | Mar 2025 |
| 13 | Rising Star Petroleum, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Apr 2010 |
| 14 | Riverstone Energy Operating, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2025 |
| 15 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 16 | Road Oil Sales Inc. | Tyler, TX 75711 | Oil Operator | Dec 1984 |
| 17 | Rockcliff Energy Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 18 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Mar 2025 |
| 19 | Roosth & Genecov Production Co. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2003 |
| 20 | Roosth Production Co. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2025 |
| 21 | Rosbottom Production Corp | Shreveport, LA 71134 | Oil & Gas Operator | Dec 2017 |
| 22 | Rose City Resources, LLC | Tyler, TX 75703 | Oil & Gas Operator | Mar 2025 |
| 23 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 24 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 25 | Rowan, Al | Van, TX 75790 | Oil & Gas Operator | Apr 2021 |
| 26 | Royal Production Company, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2025 |
| 27 | RTD Resources, LLC | Arp, TX 75750 | Oil & Gas Operator | Mar 2025 |
| 28 | Rusk Co. Well Service Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 29 | Rusk Energy Management, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2008 |
| 30 | Russell - FT. Trinidad Op., LLC | Tyler, TX 75710 | Oil & Gas Operator | Mar 2025 |
| 31 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Mar 2025 |
| 32 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |