| 1 | A5 Oil And Gas LLC | | Oil Operator | Dec 2025 |
| 2 | Arkies Well Service Inc | | Oil Operator | Aug 2009 |
| 3 | Babcock & Brown Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2007 |
| 4 | Baney Well Service Inc | Denver, CO 80237 | Oil Operator | Dec 2015 |
| 5 | Banner Petroleum LLC | | Oil Operator | Dec 2015 |
| 6 | Bellaire Oil Co | | Oil & Gas Operator | Mar 2026 |
| 7 | Bellaire Operating LLC. | | Oil Operator | Dec 2025 |
| 8 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jun 2026 |
| 9 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | May 2026 |
| 10 | C And M Oil Inc | Kimball, NE 69145 | Oil & Gas Operator | Dec 2024 |
| 11 | Cannon, Robert D. | | Oil & Gas Operator | Dec 2022 |
| 12 | Cardinal Oil Company, Inc. | | Oil Operator | Dec 2025 |
| 13 | Central Operating Inc | Denver, CO 80202 | Oil & Gas Operator | Mar 2026 |
| 14 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Apr 2026 |
| 15 | CM Production, LLC | | Oil & Gas Operator | Aug 2020 |
| 16 | Colton Limited Liability Co | | Oil & Gas Operator | Sep 2023 |
| 17 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Feb 2026 |
| 18 | Davis, Edward Mike | | Oil Operator | Dec 2011 |
| 19 | Delta Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 20 | Devon Energy Production Co | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2015 |
| 21 | Diamond Operating Inc | | Oil & Gas Operator | Aug 2021 |
| 22 | Diversified Operating Corp. | Golden, CO 80401 | Oil & Gas Operator | Oct 2012 |
| 23 | Eagle Creek Resources, LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2025 |
| 24 | Evertson Operating Company Inc | Kimball, NE 69145 | Oil & Gas Operator | Nov 2022 |
| 25 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 26 | Flatirons Resources LLC | Westminster, CO 80021 | Oil & Gas Operator | Dec 2022 |
| 27 | Foundation Energy MGT, LLC | | Oil & Gas Operator | Jan 2014 |
| 28 | Frerichs, Everett | | Oil Operator | Dec 2025 |
| 29 | Grayhorse Operating Inc | Tulsa, OK 74103-4438 | Oil & Gas Operator | Mar 2026 |
| 30 | Gregory, JD | | Oil & Gas Operator | Dec 2021 |
| 31 | HRM Resources II, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 32 | Impetro Nonop LLC | | Oil Operator | Feb 2026 |
| 33 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Mar 2026 |
| 34 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | Feb 2026 |
| 35 | Kuhn Oil Co Inc | Timber Lake, SD 57656 | Oil Operator | Dec 2025 |
| 36 | Lone Mountain Prod | | Oil Operator | Dec 2018 |
| 37 | Monahan | | Oil Operator | Dec 2009 |
| 38 | Peterson Energy Operating | | Oil Operator | Dec 2025 |
| 39 | Petrowest Energy Co Inc | | Oil & Gas Operator | Dec 2025 |
| 40 | Rampart Energy Co | | Oil & Gas Operator | Dec 2025 |
| 41 | Raymond Oil Co., Inc. | Wichita, KS 67201 | Oil & Gas Operator | Feb 2026 |
| 42 | Recovery Energy, Inc | | Oil Operator | Dec 2012 |
| 43 | Remora Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 44 | Rta Petroleum, LLC | | Oil Operator | Dec 2025 |
| 45 | Singletree Resources, Inc. | | Oil Operator | Aug 2014 |
| 46 | Smith Oil Properties Inc | | Oil & Gas Operator | Nov 2022 |
| 47 | Smith Red Plains Production | | Oil & Gas Operator | Dec 2025 |
| 48 | Smith Red Plains Production LLC | | Oil & Gas Operator | Apr 2026 |
| 49 | Soper Production | | Oil & Gas Operator | Dec 2011 |
| 50 | Tidal Wave Energy, Inc. | New Castle, PA 16105 | Oil & Gas Operator | Jun 2022 |
| 51 | Tri Family Oil Co | | Oil Operator | Dec 2025 |
| 52 | Warner Ventures Inc | | Oil Operator | Dec 2025 |
| 53 | Wieser Oil LLC | | Oil & Gas Operator | Dec 2025 |
| 54 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Feb 2026 |
| 55 | Wistrom | | Oil Operator | Aug 2019 |
| 56 | Z & S Construction Co Inc | Kimball, NE 69145 | Oil & Gas Operator | Feb 2026 |