| 1 | Rainbow Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Nov 2002 |
| 2 | Ram Operating Inc. | Browns, IL 62818 | Oil & Gas Operator | Aug 2008 |
| 3 | Ramtex Energy LLC | Tulsa, OK 74114 | Oil & Gas Operator | Oct 2025 |
| 4 | Ranger 40 Petroleum, LLC | Fairfield, CT 06824 | Oil & Gas Operator | Oct 2025 |
| 5 | Rasmussen, Hal J. Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 2009 |
| 6 | Raw Oil & Gas, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Oct 2025 |
| 7 | Read & Stevens, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jul 2023 |
| 8 | Red River Oil & Gas LLC | Cherry Hills, CO 80110 | Oil & Gas Operator | Feb 2025 |
| 9 | Red Tail Exploration, LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 10 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 11 | Regency Petroleum Co. | Irving, TX 75016 | Oil & Gas Operator | Aug 2002 |
| 12 | Regency Petroleum Co. Of New Mex | Coppell, TX 75019 | Oil & Gas Operator | Apr 2008 |
| 13 | Reliance Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 14 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Oct 2025 |
| 15 | Reserve Management, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Oct 2025 |
| 16 | Resolute Natural Res. Co., LLC | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 17 | Reverence Operating LLC | Odessa, TX 79768 | Oil & Gas Operator | Oct 2025 |
| 18 | Rhonda Operating Company | Midland, TX 79710 | Oil & Gas Operator | Aug 2017 |
| 19 | Ricks Exploration, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2008 |
| 20 | Riley Exploration Opg Co, LLC | La Grange, TX 78945 | Oil & Gas Operator | Oct 2025 |
| 21 | Riley Permian Operating Co, LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Oct 2025 |
| 22 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 23 | Rio-Tex, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 24 | Robert C. Brower, LLC | Southlake, TX 76092 | Oil & Gas Operator | Oct 2025 |
| 25 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Oct 2025 |
| 26 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 27 | Rogers, S. K. Oil, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Oct 2025 |
| 28 | Roosevelt Resources LP | Dallas, TX 75225 | Oil & Gas Operator | Oct 2025 |
| 29 | RSP Permian, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 30 | Rusk Co. Well Service Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |