| 1 | Abilene Perfect Energy JV LLC | | Oil & Gas Operator | Dec 2017 |
| 2 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 3 | Churchill Energy, Inc. | | Oil & Gas Operator | Aug 2020 |
| 4 | Citation Oil & Gas Corp | Houston, TX 77269 | Oil & Gas Operator | Dec 2025 |
| 5 | Gadeco, LLC | | Oil & Gas Operator | Oct 2025 |
| 6 | Grand Mesa Operating Company | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 7 | Halde Oil Inc | | Oil & Gas Operator | Sep 2025 |
| 8 | JWC Operating LLC | | Oil & Gas Operator | Sep 2025 |
| 9 | KTM Operating LLC | | Oil & Gas Operator | Oct 2025 |
| 10 | Magpie Operating, Inc | | Oil & Gas Operator | Sep 2025 |
| 11 | Mountain Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Apr 2013 |
| 12 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 13 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Oct 2025 |
| 14 | Nighthawk Production LLC | | Oil & Gas Operator | May 2016 |
| 15 | Own Resources Operating LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2025 |
| 16 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 17 | Phoenix Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Jul 2022 |
| 18 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Jun 2025 |
| 19 | Polaris Production Opco LLC | | Oil & Gas Operator | Aug 2025 |
| 20 | Pronghorn Operating LLC | | Oil & Gas Operator | Jan 2023 |
| 21 | Rampike Resources, LTD | Denver, CO 80202 | Oil Operator | Aug 2025 |
| 22 | Ritchie Exploration, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jun 2025 |
| 23 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Dec 2025 |
| 24 | Vecta Oil & Gas LTD | Dallas, TX 75235 | Oil & Gas Operator | Sep 2025 |
| 25 | Wiepking-Fullerton Energy LLC | | Oil & Gas Operator | Sep 2025 |