| 1 | Advantage Resources Inc | Broomfield, CO 80020 | Oil & Gas Operator | Dec 2023 |
| 2 | Aksarben Petroleum, Inc. | | Oil Operator | Sep 2022 |
| 3 | Antelope Energy Company LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
| 4 | Babcock & Brown Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2007 |
| 5 | Baney Well Service Inc | Denver, CO 80237 | Oil Operator | Jun 2016 |
| 6 | Banner Petroleum LLC | | Oil Operator | Dec 2015 |
| 7 | Bellaire Oil Company | | Oil & Gas Operator | Dec 2023 |
| 8 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
| 9 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Feb 2024 |
| 10 | Braden-Deem Inc | Wichita, KS 67226 | Oil & Gas Operator | Dec 2023 |
| 11 | Brown Oil & Gas LLC | | Oil & Gas Operator | Jan 2024 |
| 12 | C And M Oil Inc | Kimball, NE 69145 | Oil & Gas Operator | Jan 2023 |
| 13 | Cardinal Oil Company, Inc. | | Oil Operator | Dec 2022 |
| 14 | Century Stimulation & Eng LLC | | Oil Operator | Dec 2015 |
| 15 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Feb 2024 |
| 16 | CM Production LLC | | Oil & Gas Operator | Aug 2020 |
| 17 | Colton Limited Liability Co | | Oil & Gas Operator | Sep 2023 |
| 18 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Feb 2024 |
| 19 | Davis, Edward Mike | | Oil Operator | Dec 2011 |
| 20 | DNR Oil And Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Feb 2024 |
| 21 | Dowd, Gene | | Oil & Gas Operator | Dec 2013 |
| 22 | Eagle Creek Resources, LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2022 |
| 23 | Evertson Operating Company Inc | Kimball, NE 69145 | Oil & Gas Operator | Nov 2022 |
| 24 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Dec 2023 |
| 25 | Fairways Exploration & Production, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 26 | Foundation Energy MGT, LLC | | Oil & Gas Operator | Jan 2014 |
| 27 | Frerichs, Everett | | Oil Operator | Dec 2022 |
| 28 | Gregory, JD | | Oil & Gas Operator | Dec 2021 |
| 29 | H & M Petroleum Corporation | Lincoln, NE 68516 | Oil & Gas Operator | Jan 2024 |
| 30 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
| 31 | HRM Resources II, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 32 | Impetro Nonop LLC | | Oil Operator | Dec 2022 |
| 33 | Intermountain Petroleum Co | | Oil Operator | Dec 2011 |
| 34 | Jel Resources, LLC | Castle Rock, CO 80109 | Oil Operator | Dec 2023 |
| 35 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | Jan 2024 |
| 36 | Lilis Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Aug 2017 |
| 37 | Lone Mountain Prod | | Oil Operator | Dec 2018 |
| 38 | Monahan | | Oil Operator | Dec 2009 |
| 39 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 40 | O&Apos;Brien Energy Resources Corp | | Oil & Gas Operator | Dec 2022 |
| 41 | Open Range Energy LLC | Jones, OK 73049 | Oil & Gas Operator | Jan 2024 |
| 42 | P & E Oil | | Oil & Gas Operator | Dec 2022 |
| 43 | Paine Petroleum Company LLC | | Oil Operator | Dec 2013 |
| 44 | Paladin Energy Partners LLC | | Oil & Gas Operator | Dec 2006 |
| 45 | Petro-Canada Resources (USA) | | Oil & Gas Operator | Dec 2009 |
| 46 | Petrowest Energy Co Inc | | Oil & Gas Operator | Dec 2022 |
| 47 | Platte Valley Oil Co., Inc. | Ralston, NE 68127 | Oil Operator | Dec 2023 |
| 48 | Prima Exploration, Inc. | Denver, CO 80206 | Oil & Gas Operator | Feb 2024 |
| 49 | R. Lacy Services, LTD. | Longview, TX 75606 | Oil & Gas Operator | Apr 2024 |
| 50 | Rampart Energy Company | | Oil & Gas Operator | Dec 2022 |
| 51 | Recovery Energy Inc | | Oil & Gas Operator | Jan 2014 |
| 52 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Apr 2024 |
| 53 | Rta Petroleum, LLC | | Oil Operator | Dec 2022 |
| 54 | RV Borchert Oil Producer | | Oil & Gas Operator | Dec 2022 |
| 55 | Singletree Resources Inc | | Oil & Gas Operator | Aug 2014 |
| 56 | Smith Red Plains Production | | Oil & Gas Operator | Dec 2022 |
| 57 | Smith Red Plains Production LLC | | Oil Operator | Feb 2024 |
| 58 | Soper Production | | Oil & Gas Operator | Dec 2011 |
| 59 | Tidal Wave Energy, Inc. | New Castle, PA 16105 | Oil & Gas Operator | Jun 2022 |
| 60 | Timka Resources LTD | | Oil & Gas Operator | Feb 2024 |
| 61 | Tri Family Oil Co | | Oil Operator | Dec 2022 |
| 62 | Twin Oil Partnership LLC | | Oil Operator | Dec 2022 |
| 63 | Walsh Production Inc | | Oil & Gas Operator | Nov 2008 |
| 64 | Warner Ventures Inc | | Oil Operator | Dec 2022 |
| 65 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Feb 2024 |
| 66 | Wieser Oil LLC | | Oil & Gas Operator | Dec 2022 |
| 67 | Wind River Exploration Inc | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2023 |
| 68 | Wistrom | | Oil Operator | Aug 2019 |
| 69 | Z & S Construction Co Inc | Kimball, NE 69145 | Oil & Gas Operator | Feb 2024 |