| 1 | Eagle Well Service, Inc | Salyersville, KY 41465 | Oil & Gas Operator | Dec 2023 |
| 2 | East Fork Energy Inc | | Oil Operator | Dec 2015 |
| 3 | East Fork Energy Partners Inc | Edmonton, KY 42129 | Oil Operator | Dec 2016 |
| 4 | East Fork Oil Corporation | | Oil Operator | Dec 2016 |
| 5 | Eastern Energy Corporation | Bowling Green, KY 42104 | Oil & Gas Operator | Dec 2014 |
| 6 | Eastern Ky Oil & Gas, Inc | Paintsville, KY 41240 | Oil & Gas Operator | Dec 2020 |
| 7 | Eastern Ky Prod Co | | Oil Operator | Dec 2023 |
| 8 | Eastern States Oil & Gas, Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2020 |
| 9 | Edgington, Jimmy C | MT Carmel, IL 62863 | Oil Operator | Dec 2021 |
| 10 | Elliott, W E & Elliott, W E Jr | Pikeville, KY 41502 | Gas Operator | Dec 2023 |
| 11 | Elliott, W E Et Al | Pikeville, KY 41502 | Gas Operator | Dec 2023 |
| 12 | Elna Oil Co, Inc | Martha, KY 41159 | Oil Operator | Dec 2023 |
| 13 | Empire Oil & Gas Co. | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2017 |
| 14 | Encore Operating Kentucky LLC | Bowling Green, KY 42101 | Oil & Gas Operator | Dec 2023 |
| 15 | Endeavor Energy Resources, LP | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 16 | Energy Associates, Inc | Lexington, KY 40502 | Oil & Gas Operator | Dec 2023 |
| 17 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2023 |
| 18 | Energy Enterprises, LLC | MT Vernon, IL 62864 | Oil Operator | Dec 2023 |
| 19 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 20 | Engle, George S | | Oil Operator | Dec 2023 |
| 21 | Enpro, Inc | Winchester, KY 40391 | Oil & Gas Operator | Dec 2023 |
| 22 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Aug 2025 |
| 23 | Eureka Expl Co, Inc | | Oil Operator | Dec 2013 |
| 24 | Eureka Gas Co, Inc | Pikeville, KY 41502 | Gas Operator | Dec 2010 |
| 25 | Eureka Oil And Gas LLC | Columbus, OH 43230 | Oil Operator | Dec 2020 |
| 26 | Evan Energy Co, LC | | Gas Operator | Dec 2013 |
| 27 | Ewm Services, LLC | Morganfield, KY 42437 | Oil Operator | Dec 2022 |
| 28 | Exco Resources (Pa), LLC | Dallas, TX 75251-2224 | Oil & Gas Operator | Aug 2025 |
| 29 | Explo Oil, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Nov 2025 |
| 30 | Exxo Resources Co | Dana, KY 41615 | Oil & Gas Operator | Dec 2023 |