| 1 | Ranger 40 Petroleum, LLC | Fairfield, CT 06824 | Oil & Gas Operator | Apr 2024 |
| 2 | Rattler Midstream Operating LLC | Midland, TX 79701 | Oil Operator | Apr 2024 |
| 3 | Read & Stevens, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jul 2023 |
| 4 | Red Willow Production, LLC | Ignacio, CO 81137 | Oil & Gas Operator | Oct 2015 |
| 5 | Reef Exploration, L.P. | Richardson, TX 75080 | Oil & Gas Operator | Apr 2024 |
| 6 | Reeves County Systems, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Aug 2019 |
| 7 | Remnant Oil Operating, LLC | Midland, TX 79704 | Oil & Gas Operator | Dec 2023 |
| 8 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Apr 2024 |
| 9 | Renaud Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 10 | Richardson, Bud II | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 11 | Richmond Petroleum Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Aug 2003 |
| 12 | Rio Oil And Gas (Permian) II,LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Apr 2024 |
| 13 | Rki Exploration & Production LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2024 |
| 14 | Robertson Resources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2024 |
| 15 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 16 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 17 | Rockbridge Petroleum LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2009 |
| 18 | Rodan, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Apr 2024 |
| 19 | Rosehill Operating Company, LLC | Houston, TX 77084 | Oil & Gas Operator | Sep 2021 |
| 20 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 21 | Rover Operating Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2000 |
| 22 | RSP Permian, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 23 | Rust Oil Corp. | Fort Worth, TX 76108 | Oil & Gas Operator | Apr 2024 |