| 1 | C & H Oil LLC | Greensburg, KY 42743 | Oil Operator | Dec 2022 |
| 2 | C & R Oil Co. | Abilene, TX 79605 | Oil & Gas Operator | Mar 2025 |
| 3 | Cain, Chas | Lexington, KY 40509 | Gas Operator | Dec 2022 |
| 4 | Cain, Nicholas A & Darry R | | Oil Operator | Dec 2002 |
| 5 | Callaham, John David | | Gas Operator | Dec 2022 |
| 6 | Callahan, Stephen Et Al | Navarre, FL 32566 | Oil Operator | Dec 2022 |
| 7 | Camco Oil, LLC | Whitesville, KY 42378 | Oil Operator | Dec 2022 |
| 8 | Camco, Inc | Columbia, KY 42728 | Oil Operator | Dec 2022 |
| 9 | Camplin, Raymond | Greenville, KY 42345 | Oil Operator | Dec 2018 |
| 10 | Capp Petroleum, LLC | Ashland, KY 41105 | Oil & Gas Operator | Dec 2020 |
| 11 | Caprock Drilling & Operating Co Inc | Edmonton, KY 42129 | Oil Operator | Dec 2022 |
| 12 | Carson Assoc, Inc | Ashland, KY 41102 | Oil & Gas Operator | Dec 2013 |
| 13 | Carter Oil Co | | Oil & Gas Operator | Dec 2013 |
| 14 | Case Drilling Company | Philpot, KY 42366 | Oil Operator | Dec 2019 |
| 15 | Catalyst Energy Inc | Pittsburgh, PA 15218 | Oil & Gas Operator | Jan 2025 |
| 16 | Central Energy Group, LLC | | Oil & Gas Operator | Dec 2020 |
| 17 | Central Hydrocarbons, LLC | | Oil Operator | Dec 2013 |
| 18 | Chaffin, Willis D | Louisa, KY 41230 | Oil Operator | Dec 2022 |
| 19 | Champ Oil Company | Hickory Creek, TX 75065 | Oil & Gas Operator | Dec 2020 |
| 20 | Charmane Oil Corp | | Oil Operator | Dec 2012 |
| 21 | Cherry Oil & Gas, Inc | | Oil Operator | Dec 2013 |
| 22 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2025 |
| 23 | Classic Oil & Gas Resources Inc | | Gas Operator | Dec 2008 |
| 24 | Clean Gas, Inc | Hindman, KY 41822 | Oil & Gas Operator | Dec 2021 |
| 25 | Clendening, John A | | Oil Operator | Dec 2021 |
| 26 | Clinton County Crude Inc | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 27 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jan 2025 |
| 28 | Cobb, E M | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 29 | Cobb, Maurice W Dba M W C Oil Co | Eddyville, KY 42038 | Oil Operator | Dec 2022 |
| 30 | Cobra Petroleum Production Corp | | Oil & Gas Operator | Dec 2018 |
| 31 | Coffman Oil & Real Estate Inc | Newport Beach, CA 92661 | Oil Operator | Dec 2022 |
| 32 | Colonial Corporation | St Simons Island, GA 31522 | Oil & Gas Operator | Dec 2000 |
| 33 | Columbia Gas Transmission, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 34 | Combs, Steven H | Corydon, KY 42406 | Oil Operator | Dec 2022 |
| 35 | Comstock Oil & Gas, Inc. | Frisco, TX 75034 | Oil & Gas Operator | Dec 2012 |
| 36 | Conley Oil, Inc | Salyersville, KY 41465 | Oil & Gas Operator | Dec 2022 |
| 37 | Conner, E B Jr | | Oil Operator | Dec 2022 |
| 38 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Mar 2025 |
| 39 | Contrast Energy, LLC | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2025 |
| 40 | Coomer, Mitchell | Columbia, KY 42728 | Oil Operator | Dec 2021 |
| 41 | Core Appalachia Operating LLC | Charleston, WV 25362 | Oil & Gas Operator | Dec 2020 |
| 42 | Core Minerals Operating Co Inc | | Oil Operator | Dec 2021 |
| 43 | Countrymark Energy Resources, LLC | MT Vernon, IN 47620 | Oil & Gas Operator | Dec 2022 |
| 44 | Cracker Oil & Gas Co | | Gas Operator | Dec 2013 |
| 45 | Cross, Howard W | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 46 | Crudewell Drilling, Inc | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 47 | Crystal Expl Co, Inc | | Oil & Gas Operator | Dec 2009 |
| 48 | Cumberland Harlan Expl Corp | Barbourville, KY 40906 | Oil & Gas Operator | Dec 2018 |
| 49 | Cumberland River Oil & Gas, Inc | Williamsburg, KY 40769 | Oil & Gas Operator | Dec 2022 |
| 50 | Cumberland Valley Resources, LLC | Louisville, KY 40204 | Oil & Gas Operator | Dec 2022 |
| 51 | Cut Through Hydrocarbon | Florence, KY 41042 | Gas Operator | Dec 2019 |
| 52 | Cyrus, Scott | Louisa, KY 41230 | Oil Operator | Dec 2022 |