| 1 | A.D.I.D. Corporation | Emlyn, KY 40730 | Oil & Gas Operator | Dec 2019 |
| 2 | Abarta Oil & Gas Co., Inc. | Pittsburgh, PA 15238 | Oil & Gas Operator | Dec 2020 |
| 3 | Abarta Oil & Gas Co., LLC | | Oil & Gas Operator | Dec 2021 |
| 4 | Adkins, Howard M | Louisa, KY 41230 | Oil Operator | Dec 2023 |
| 5 | Adkins, Russell M & Mary | Louisa, KY 41230 | Oil Operator | Dec 2019 |
| 6 | Advanced Petroleum Enhancement, Inc | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2021 |
| 7 | Alert Oil & Gas Co, Inc | | Gas Operator | Dec 2006 |
| 8 | Alteria, LLC | Grayson, KY 41143 | Oil & Gas Operator | Dec 2023 |
| 9 | American Energy Resources, LLC | Belton, MO 64012 | Oil Operator | Aug 2025 |
| 10 | American Natural Gas Inc | Saint Clairsville, OH 43950 | Oil & Gas Operator | Dec 2020 |
| 11 | Ames, C B Dba Ames Oil & Gas | | Oil Operator | Dec 2004 |
| 12 | Amwes Exploration, LLC | Barbourville, KY 40906 | Oil & Gas Operator | Dec 2023 |
| 13 | An-Car Oil Co Inc | Owensboro, KY 42302-1329 | Oil & Gas Operator | Dec 2014 |
| 14 | Anaconda DRLG Of Kentucky, LLC | | Gas Operator | Dec 2011 |
| 15 | Anderson Oil LTD. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 16 | Angel Rose Energy, LLC | Olney, IL 62450 | Oil Operator | Dec 2023 |
| 17 | Antares Oil Corp | Denver, CO 80202 | Oil & Gas Operator | Oct 2015 |
| 18 | Antle Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 19 | Apex DRLG | Bermuda Dunes, CA 92203 | Oil & Gas Operator | Dec 2019 |
| 20 | App Energy, LLC | Monroe, MI 48161 | Oil & Gas Operator | Dec 2021 |
| 21 | Appalachian Resources Of Florida, LLC | Fort Myers, FL 33902 | Oil Operator | Dec 2023 |
| 22 | Aquila Resources | Burkesville, KY 42717 | Oil & Gas Operator | Dec 2022 |
| 23 | Argo Energy Corp | Gray, KY 40734 | Gas Operator | Dec 2019 |
| 24 | Arnold Ridge LLC | | Oil Operator | Dec 2023 |
| 25 | Arrowhead Industries | Horse Cave, KY 42749 | Oil Operator | Dec 2011 |
| 26 | Ashland Oil, Inc | | Oil & Gas Operator | Dec 2023 |
| 27 | Atlas Oil Co, Inc | | Oil Operator | Dec 2023 |
| 28 | Atlas Oil Company, LLC | Versailles, KY 40383 | Oil Operator | Dec 2023 |
| 29 | Atwell, Harold | | Gas Operator | Dec 2023 |
| 30 | Aus-Tex Exploration, Inc | | Oil & Gas Operator | Dec 2025 |
| 31 | Axp Energy, Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2023 |