| 1 | E & C Miller Production LTD | Utica, OH 43080 | Gas Operator | Dec 2024 |
| 2 | E I C Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 1984 |
| 3 | Eagle Drilling | Lowell, OH 45744 | Oil & Gas Operator | Dec 2022 |
| 4 | Eagle Expl Co/Johnson J | Bolivar, OH 44612 | Oil & Gas Operator | Dec 1989 |
| 5 | Eagle Mountain Energy | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 6 | Eap Ohio LLC | Oklahoma City, OK 73134-2646 | Oil & Gas Operator | Sep 2025 |
| 7 | Earley Donald E | Utica, OH 43080 | Oil Operator | Dec 2019 |
| 8 | East Union Resources, LLC | Zanesville, OH 43701-5137 | Oil & Gas Operator | Dec 2024 |
| 9 | Eastern Amer Energy Corp | Charleston, WV 25304 | Oil & Gas Operator | Dec 2006 |
| 10 | Eastern Mountain Fuel Inc | Marietta, OH 45750-1240 | Oil & Gas Operator | Dec 2002 |
| 11 | Eastern Petroleum Company | Girard, OH 44420 | Oil & Gas Operator | Sep 1995 |
| 12 | Eastern States Oil & Gas, Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2020 |
| 13 | Eastland Energy Group Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2024 |
| 14 | Echo Drilling Inc | Dover, OH 43622 | Oil & Gas Operator | Dec 2024 |
| 15 | Eclipse Resources I LP | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 16 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 17 | Eco Production LLC | Wooster, OH 44691-4683 | Oil & Gas Operator | Dec 2024 |
| 18 | Edco Drilling & Producing | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2006 |
| 19 | Eei Inc | MT Pleasant, MI 48858 | Oil & Gas Operator | Dec 1990 |
| 20 | Elan Energy Inc | Toledo, OH 43604-1207 | Oil & Gas Operator | Dec 1990 |
| 21 | Elba Oil Company LLC | Macksburg, OH 45746 | Oil Operator | Dec 2024 |
| 22 | Elephant Exploration Inc. | Hartville, OH 44632 | Oil & Gas Operator | Dec 2024 |
| 23 | Elk Oil Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2018 |
| 24 | Elkhead Gas & Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 25 | Ellen P Sharp LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 26 | Ellvie Wells LLC | New Franklin, OH 44319 | Oil & Gas Operator | Dec 2024 |
| 27 | Elsaan Energy LLC | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2023 |
| 28 | Em Energy Ohio LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Sep 2019 |
| 29 | Embassy Energy Inc. | Akron, OH 44333-8357 | Oil & Gas Operator | Dec 2024 |
| 30 | Emmert Leo R | Marblehead, OH 43440 | Oil & Gas Operator | Dec 2004 |
| 31 | Ems Prod Systems Inc | Columbus, OH 43235 | Oil & Gas Operator | Dec 1995 |
| 32 | Enczi Frank | Junction City, OH 43748 | Oil & Gas Operator | Dec 2016 |
| 33 | Energex Oil & Gas Corp | Marietta, OH 45750 | Oil & Gas Operator | Dec 1985 |
| 34 | Energy Contractors, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2019 |
| 35 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2024 |
| 36 | Energy Distributors Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1987 |
| 37 | Energy Exploration & Development | Cortland, OH 44410 | Oil & Gas Operator | Dec 2024 |
| 38 | Energy Production, Inc. | Canton, OH 44711 | Oil & Gas Operator | Dec 2021 |
| 39 | Energy Resources Of America Inc | North Jackson, OH 44451 | Oil & Gas Operator | Dec 2022 |
| 40 | Energy Search Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2007 |
| 41 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 42 | Eninun Inc | Dayton, OH 45415 | Oil & Gas Operator | Dec 1984 |
| 43 | Enterprise Energy Corp | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1985 |
| 44 | Enveron Corporation | Portage, MI 49024 | Oil & Gas Operator | Dec 2017 |
| 45 | Envirocorp Inc | Hamburg, NY 14075 | Oil & Gas Operator | Dec 1990 |
| 46 | Envirogas Inc | Hamburg, NY 14075 | Oil & Gas Operator | Dec 1992 |
| 47 | Environmental BR Ser Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 1987 |
| 48 | Environmental Exp Co | North Canton, OH 44720 | Oil & Gas Operator | Dec 1998 |
| 49 | Environmental Oil Co | Thornville, OH 43076 | Oil & Gas Operator | Dec 2024 |
| 50 | EOG Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 51 | Eos Energy LLC | Columbus, OH 43026 | Oil & Gas Operator | Dec 2024 |
| 52 | EP Operating Co. | Dallas, TX 75201 | Oil & Gas Operator | Jan 1993 |
| 53 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Dec 2025 |
| 54 | Equinor USA Onshore Properties Inc. | Houston, TX 77042 | Oil & Gas Operator | Mar 2024 |
| 55 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 56 | Equity Oil & Gas Co. | Canton, OH 44709 | Oil & Gas Operator | Dec 2018 |
| 57 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103 | Oil & Gas Operator | Dec 2025 |
| 58 | Eric Petroleum Corp | Austintown, OH 44515-1053 | Oil & Gas Operator | Dec 2024 |
| 59 | Erie Oil & Gas Co | Columbus, OH 43229 | Oil & Gas Operator | Dec 1989 |
| 60 | Euroamerican Pet Corp | Columbus, OH 43229 | Gas Operator | Dec 1991 |
| 61 | Evanco Inc | Cleveland, OH 44115 | Oil & Gas Operator | Dec 1987 |
| 62 | Everflow Eastern Partners LP | Canfield, OH 44406 | Oil & Gas Operator | Dec 2024 |
| 63 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 64 | Excalibur Exploration Inc | Greentown, OH 44630 | Oil & Gas Operator | Dec 2020 |
| 65 | Exco - North Coast Energy Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2018 |
| 66 | Expand Oper LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2025 |
| 67 | Exploration Energy Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 2009 |
| 68 | Explore Energy Corp. | Westerville, OH 43086 | Oil & Gas Operator | Dec 2016 |
| 69 | Eyster Oil Company LLC | Magnolia, OH 44643 | Oil & Gas Operator | Dec 2024 |