| 1 | Atlas Oil Co, Inc | | Oil Operator | Dec 2013 |
| 2 | Atlas Oil Company, LLC | Versailles, KY 40383 | Oil Operator | Dec 2022 |
| 3 | Axp Energy, Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2021 |
| 4 | B & A Oil Services LLC | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 5 | Bandit Energy, LLC | Perry, MI 48872 | Oil Operator | Dec 2021 |
| 6 | Basin Petroleum, LLC | | Oil Operator | Dec 2017 |
| 7 | Beeson, Richard W | | Oil Operator | Dec 2022 |
| 8 | Berry, Richard A | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 9 | Big Man Oil Co, Inc | Owensboro, KY 42302 | Oil & Gas Operator | Dec 2022 |
| 10 | Brookston Resources, Inc | Newburgh, IN 47630 | Oil Operator | Dec 2022 |
| 11 | Cain, Nicholas A & Darry R | | Oil Operator | Dec 2002 |
| 12 | Callahan, Stephen Et Al | Navarre, FL 32566 | Oil Operator | Dec 2022 |
| 13 | Carter Oil Co | | Oil & Gas Operator | Dec 2013 |
| 14 | Cobb, E M | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 15 | Cobb, Maurice W Dba M W C Oil Co | Eddyville, KY 42038 | Oil Operator | Dec 2022 |
| 16 | Combs, Steven H | Corydon, KY 42406 | Oil Operator | Dec 2022 |
| 17 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Mar 2025 |
| 18 | Core Minerals Operating Co Inc | | Oil Operator | Dec 2021 |
| 19 | Countrymark Energy Resources, LLC | MT Vernon, IN 47620 | Oil & Gas Operator | Dec 2022 |
| 20 | Del Energy, Inc | | Oil Operator | Dec 2013 |
| 21 | Duncan, Gene L Dba Duncan Oil Co | Salem, IL 62881 | Oil Operator | Dec 2018 |
| 22 | Energy Enterprises, LLC | MT Vernon, IL 62864 | Oil Operator | Dec 2021 |
| 23 | Farrar Oil Co | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2000 |
| 24 | Geigo Co, LLP | | Oil Operator | Dec 2017 |
| 25 | Geo Oil Co Inc | Bloomington, IN 47402 | Oil Operator | Dec 2021 |
| 26 | Goebel, Kenneth & Paula S | MT Vernon, IN 47620 | Oil Operator | Dec 2022 |
| 27 | Greenville Oil Company | Greenville, KY 42345 | Oil Operator | Dec 2020 |
| 28 | Har-Ken Agent Ok, LTD | Owensboro, KY 42302 | Oil & Gas Operator | Dec 2022 |
| 29 | Har-Ken Oil Co | | Oil & Gas Operator | Dec 2021 |
| 30 | Hoffman George A | | Oil & Gas Operator | Dec 2022 |
| 31 | Hydrocarbon Inv, Inc | | Oil Operator | Dec 2018 |
| 32 | Jackson, Fred & CC Royer | | Oil Operator | Dec 2022 |
| 33 | Jaguar Oil, LLC | Evansville, IN 47713 | Oil Operator | Dec 2022 |
| 34 | Jarvis Drilling, Inc. | MT Zion, IL 62549 | Oil & Gas Operator | Aug 2020 |
| 35 | Kelcas Well Services LTD | Owensboro, KY 42303 | Oil Operator | Dec 2021 |
| 36 | Kelly Energy Co, Inc | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 37 | KLC Petroleum Company, LLC | Henderson, KY 42420 | Oil Operator | Dec 2021 |
| 38 | Ky Energy Group, LLC | | Oil & Gas Operator | Dec 2015 |
| 39 | L. A. W. Oil, LLC | | Oil Operator | Dec 2018 |
| 40 | Loeb Bros., LLC | Lawrenceville, IL 62439 | Oil Operator | Dec 2016 |
| 41 | Loeb, Herman L, LLC | Lawrenceville, IL 62439 | Oil Operator | Dec 2017 |
| 42 | Lone Star Oil & Gas, Inc | Greenville, KY 42345 | Oil & Gas Operator | Dec 2022 |
| 43 | Magnum Hunter Production, Inc. | Irving, TX 75014 | Oil & Gas Operator | Dec 2019 |
| 44 | Marsh Oil & Gas Field Services, Inc | Sebree, KY 42455 | Oil & Gas Operator | Dec 2022 |
| 45 | Montgomery Oil Co | | Oil Operator | Dec 2018 |
| 46 | Nally, Joseph L | Uniontown, KY 42461 | Oil & Gas Operator | Dec 2021 |
| 47 | Navitas Land And Mineral Development, LLC | | Oil Operator | Dec 2016 |
| 48 | Numatex, Inc | | Oil Operator | Dec 2013 |
| 49 | Oilfield Research, Inc | | Oil Operator | Dec 2021 |
| 50 | Pioneer Oil Company, Inc | Vincennes, IN 47501 | Oil & Gas Operator | Nov 2024 |
| 51 | Ralph, C D | Owensboro, KY 42301 | Oil Operator | Dec 2004 |
| 52 | Ravenna Oil Co | Beattyville, KY 41311 | Oil Operator | Dec 2021 |
| 53 | Raw Oil & Gas, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Mar 2025 |
| 54 | Robinson Engineering & Oil Company, Inc | Evansville, IN 47716 | Oil & Gas Operator | Dec 2022 |
| 55 | Roseclare Oil Co | | Oil Operator | Dec 2016 |
| 56 | Sand Dollar, LLC | Henderson, KY 42420 | Oil & Gas Operator | Dec 2018 |
| 57 | Southern Triangle Oil Co | MT Carmel, IL 62863 | Oil & Gas Operator | Dec 2022 |
| 58 | Standard Oil Of Kentucky, Inc | | Oil Operator | Dec 2022 |
| 59 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2021 |
| 60 | Steinwachs SR, James M | Robards, KY 42452 | Oil Operator | Dec 2022 |
| 61 | Tamarack Pet Co, Inc | | Oil Operator | Dec 2020 |
| 62 | Tartan Oil Co | Carmi, IL 62821 | Oil & Gas Operator | Dec 2022 |
| 63 | Texas Gas Transmission LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 64 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2020 |
| 65 | Union Petro Inc | Uniontown, KY 42461 | Oil Operator | Dec 2022 |
| 66 | Universal Operating, Inc | Evansville, IN 47715 | Oil & Gas Operator | Dec 2022 |
| 67 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2022 |
| 68 | W W Pet Service, Inc | Dixon, KY 42409 | Oil & Gas Operator | Dec 2022 |
| 69 | Whitney Oil & Gas Co, LLC | | Oil & Gas Operator | Dec 2017 |
| 70 | Wildcat Oil, LLC | Sebree, KY 42455 | Oil Operator | Dec 2021 |
| 71 | Williams, Floyd E | | Oil Operator | Dec 2015 |
| 72 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2018 |