| 1 | Advanced Petroleum Enhancement, Inc | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2021 |
| 2 | Ames, C B Dba Ames Oil & Gas | | Oil Operator | Dec 2004 |
| 3 | Axp Energy, Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2023 |
| 4 | Basin Petroleum, LLC | | Oil Operator | Dec 2017 |
| 5 | Blackhorn USA, LLC | Edwardsville, IL 62025 | Oil Operator | Dec 2024 |
| 6 | Blair, W Lynn | Lewisburg, KY 42256 | Oil & Gas Operator | Dec 2022 |
| 7 | Blue Ridge Group, Inc. | Bowling Green, KY 42101 | Oil & Gas Operator | Dec 2023 |
| 8 | C & C Downhole, LLC | Richmond, KY 40475 | Oil & Gas Operator | Dec 2024 |
| 9 | Callahan, Stephen Et Al | Navarre, FL 32566 | Oil & Gas Operator | Dec 2022 |
| 10 | Chesapeake Appalachia, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2025 |
| 11 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Feb 2026 |
| 12 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Apr 2026 |
| 13 | Countrymark Energy Resources L L C | MT Vernon, IN 47620 | Oil & Gas Operator | Dec 2024 |
| 14 | Edgington, Jimmy C | MT Carmel, IL 62863 | Oil Operator | Dec 2021 |
| 15 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Feb 2026 |
| 16 | Farrar Oil Company | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2000 |
| 17 | Gallagher Drilling Inc | Evansville, IN 47730 | Oil Operator | Dec 2020 |
| 18 | Green River Gas Co, Inc | | Oil & Gas Operator | Dec 2010 |
| 19 | Greenville Oil Company | Greenville, KY 42345 | Oil Operator | Dec 2023 |
| 20 | Har Ken Oil Company | | Oil & Gas Operator | Dec 2021 |
| 21 | Har-Ken Agent Ok, LTD | Owensboro, KY 42302 | Oil & Gas Operator | Dec 2023 |
| 22 | Hydrocarbon Inv, Inc | | Oil Operator | Dec 2018 |
| 23 | K & J Downhole, LLC | Richmond, KY 40475 | Oil & Gas Operator | Dec 2024 |
| 24 | K-B Oil Company | Dallas, TX 75243 | Oil & Gas Operator | Dec 2020 |
| 25 | Kelly Energy Co, Inc | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 26 | Kentucky Exploration LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2014 |
| 27 | Kirby & Son Dozing | Lewisburg, KY 42256 | Oil Operator | Dec 2023 |
| 28 | KLC Petroleum Company, LLC | Henderson, KY 42420 | Oil Operator | Dec 2023 |
| 29 | L. A. W. Oil, LLC | | Oil Operator | Dec 2024 |
| 30 | Lamar Properties | Evansville, IN 47716 | Gas Operator | Dec 2024 |
| 31 | Lincoln Energy Corporation | Dennis, MA 02638 | Oil & Gas Operator | Dec 2021 |
| 32 | Magnum Hunter Production, Inc. | Irving, TX 75014 | Oil & Gas Operator | Dec 2019 |
| 33 | Marsh Oil & Gas Field Services, Inc | Sebree, KY 42455 | Oil & Gas Operator | Dec 2023 |
| 34 | Moody Oil LLC | Henderson, KY 42420 | Oil Operator | Dec 2024 |
| 35 | Mountain V Oil & Gas, Inc. | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2024 |
| 36 | Nally, Joseph L | Uniontown, KY 42461 | Oil & Gas Operator | Dec 2021 |
| 37 | Navitas Land And Mineral Development, LLC | | Oil Operator | Dec 2016 |
| 38 | Nichols Operating LLC | Fort Branch, IN 47648 | Oil & Gas Operator | Dec 2024 |
| 39 | Orbit Gas Transmission, Inc | Owensboro, KY 42303 | Oil & Gas Operator | Dec 2023 |
| 40 | Overfield, Lee R | Waverly, KY 42462 | Oil Operator | Dec 2016 |
| 41 | Pioneer Oil Company, Inc. | Vincennes, IN 47501 | Oil & Gas Operator | Dec 2025 |
| 42 | Quisenberry, Gene | | Oil & Gas Operator | Dec 2016 |
| 43 | Reynolds Res, Inc | Owensboro, KY 42303 | Oil & Gas Operator | Dec 2024 |
| 44 | Robinson Engineering & Oil Company, Inc | Evansville, IN 47716 | Oil & Gas Operator | Dec 2024 |
| 45 | Rossi, Paul | FT Meade, FL 33841 | Oil Operator | Dec 2023 |
| 46 | Sargent Oil & Gas Company | | Oil & Gas Operator | Dec 2022 |
| 47 | Standard Oil Of Kentucky, Inc | | Oil Operator | Dec 2024 |
| 48 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2024 |
| 49 | Sunshine Oil & Gas, LLC | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2024 |
| 50 | Tamarack Pet Co, Inc | | Oil Operator | Dec 2020 |
| 51 | Texas Gas Transmission, LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 52 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2019 |
| 53 | Vinland Energy Operations, LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2024 |
| 54 | Weal DRLG Co, Inc | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2023 |
| 55 | Wema Natural Res, Inc | Sharon Grove, KY 42280 | Oil Operator | Dec 2021 |
| 56 | Whitney Oil & Gas Co, LLC | | Oil & Gas Operator | Dec 2017 |
| 57 | Wildcat Oil, LLC | Sebree, KY 42455 | Oil Operator | Dec 2021 |
| 58 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |