| 1 | Alliance Petroleum Corporation | Canton, OH 44718-2553 | Oil & Gas Operator | Dec 2019 |
| 2 | Am-Tek Oil Inc | Spokane, WA 99201 | Oil & Gas Operator | Dec 2023 |
| 3 | American Energy Corporation | Bealsville, OH 43716 | Oil & Gas Operator | Dec 2019 |
| 4 | American Energy Utica LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2015 |
| 5 | Antero Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 6 | Ascent Resources Utica LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jun 2025 |
| 7 | Atwood Resources Inc | Houston, TX 72151 | Oil & Gas Operator | Dec 1993 |
| 8 | Bands Company Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2014 |
| 9 | Blauser Energy Corporation | Marietta, OH 45750-6964 | Oil & Gas Operator | Dec 2018 |
| 10 | Brammer Engineering, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2025 |
| 11 | Carless Resources, Inc. | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1997 |
| 12 | Cgas Exploration | Charleston, WV 25301 | Oil & Gas Operator | Dec 2006 |
| 13 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2025 |
| 14 | Columbia Gas Transmission, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 15 | Connoil LLC | Grove City, OH 43123 | Oil & Gas Operator | Dec 2024 |
| 16 | David R Hill Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2024 |
| 17 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Sep 2025 |
| 18 | Dominion East Ohio | North Canton, OH 44720 | Oil & Gas Operator | Dec 2023 |
| 19 | Doran & Associates | Pittsburgh, PA 15220 | Oil & Gas Operator | Dec 1988 |
| 20 | Eastern States Oil & Gas, Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2020 |
| 21 | Eclipse Resources I LP | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 22 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 23 | Energy Search Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2007 |
| 24 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2025 |
| 25 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 26 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103 | Oil & Gas Operator | Dec 2024 |
| 27 | Exco - North Coast Energy Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2018 |
| 28 | Expand Operating LLC | Morgantown, WV 26508 | Oil & Gas Operator | Jun 2025 |
| 29 | G-R Contracting Inc | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2024 |
| 30 | Gulfport Appalachia LLC | Oklahoma City, OK 73114-2640 | Oil & Gas Operator | Jun 2025 |
| 31 | Gulfport Energy Corporation | Oklahoma City, OK 73114-5003 | Oil & Gas Operator | Feb 2025 |
| 32 | Hess Ohio Developments LLC | Houston, TX 77010 | Oil & Gas Operator | Sep 2018 |
| 33 | Hess Ohio Resources LLC | Houston, TX 77010 | Oil & Gas Operator | Jun 2014 |
| 34 | Kerogen Resources | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2004 |
| 35 | KST Oil & Gas Co Inc | Tallmadge, OH 44278-1142 | Oil & Gas Operator | Dec 1995 |
| 36 | M & R Investments Ohio LLC | Birmingham, AL 35238 | Oil & Gas Operator | Dec 2019 |
| 37 | Mid-Con Petroleum Co Inc | Heath, OH 43056 | Oil & Gas Operator | Dec 2010 |
| 38 | Miley Gas Company | Sarahsville, OH 43779 | Gas Operator | Dec 2023 |
| 39 | Moore Well Services Inc | Mogadore, OH 44260 | Oil & Gas Operator | Dec 2024 |
| 40 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2024 |
| 41 | Ngo Development Corp. | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 42 | Northwood Energy Corp | Columbus, OH 43221 | Oil & Gas Operator | Jun 2025 |
| 43 | Oxford Oil | Zanesville, OH 43702 | Oil & Gas Operator | Dec 2012 |
| 44 | PDC Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Jul 2025 |
| 45 | Petro Drilling Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1993 |
| 46 | Phillips Exploration Inc | Warrendale, PA 15086 | Oil & Gas Operator | Dec 2012 |
| 47 | Profit Energy Company | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2024 |
| 48 | RHDK Oil & Gas LLC/Dba Red Hill | Dover, OH 44622-9801 | Oil & Gas Operator | Dec 2024 |
| 49 | Rice Drilling D LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jun 2025 |
| 50 | Rocanville Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 51 | Shafer Berman J | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 52 | Sound Energy Co Inc | Dover, OH 44622 | Oil & Gas Operator | Jun 2025 |
| 53 | Stright Roger | Amesville, OH 45711 | Oil & Gas Operator | Dec 2016 |
| 54 | SWN Production (Ohio), LLC | Morgantown, WV 26508 | Oil & Gas Operator | Mar 2024 |
| 55 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Jun 2025 |
| 56 | Trans Atlantic Ener Corp | Caldwell, OH 43724 | Oil & Gas Operator | Dec 1993 |
| 57 | Viking Resources LLC | Uniontown, OH 44685 | Oil & Gas Operator | Dec 2017 |
| 58 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 59 | Weiss Drilling Inc | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2024 |
| 60 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2024 |
| 61 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Sep 2025 |
| 62 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 63 | Yontz James | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2018 |
| 64 | Zilkha Energy Inc | Houston, TX 77002-5223 | Oil & Gas Operator | Dec 2008 |