| 1 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 2 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Oct 2025 |
| 3 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2025 |
| 4 | Cholla Production LLC | Littleton, CO 80127 | Oil & Gas Operator | Jun 2025 |
| 5 | Colorado Interstate Gas Company LLC | Colorado Springs, CO 80944 | Oil & Gas Operator | Sep 2025 |
| 6 | Dover Atwood Corp. | Massillon, OH 44646 | Oil & Gas Operator | Dec 2024 |
| 7 | Energy Alliance Company Inc | | Oil & Gas Operator | Jan 2018 |
| 8 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 9 | Hayes Oil & Gas Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2003 |
| 10 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Sep 2025 |
| 11 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2025 |
| 12 | Lorentz Oil & Gas LLC | Edmond, OK 73034-7266 | Oil & Gas Operator | Aug 2025 |
| 13 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Oct 2025 |
| 14 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2025 |
| 15 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 16 | P & M Petroleum Management LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2021 |
| 17 | Phoenix Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Jul 2022 |
| 18 | Poncho Production Co | | Oil & Gas Operator | Jan 2022 |
| 19 | Sandlin Oil Corp | Dacono, CO 80514 | Oil & Gas Operator | Oct 2025 |
| 20 | Schreider & Company, Inc | | Oil & Gas Operator | Jun 2023 |
| 21 | Sovereign Operating Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2016 |
| 22 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Aug 2025 |
| 23 | Tindall Operating Company | Englewood, CO 80112 | Oil & Gas Operator | Jan 2025 |
| 24 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Dec 2025 |
| 25 | West Texas Operating Co LLC D/B/A Xtreme Energy Co | Victoria, TX 77902-2326 | Oil & Gas Operator | Sep 2025 |