| 101 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 102 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103-6103 | Oil & Gas Operator | Dec 2023 |
| 103 | Exco - North Coast Energy Inc | Kittanning, PA 16201 | Oil & Gas Operator | Dec 2018 |
| 104 | Ferenbaugh Albert & Denise | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 105 | Fidelity Petroleum Corporation | Plano, TX 75074 | Oil & Gas Operator | Mar 2025 |
| 106 | Flame Energy Co Inc | Dalton, OH 44618 | Oil & Gas Operator | Dec 2006 |
| 107 | Franklin Gas & Oil Co LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 108 | Frazee Paul O | Walhonding, OH 43843 | Oil & Gas Operator | Dec 1994 |
| 109 | Frost Black Creek Oil & Gas Production LLC | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2024 |
| 110 | G & S Oil & Gas Inc | Parkersburg, WV 26101-5762-5762 | Oil & Gas Operator | Dec 2015 |
| 111 | Gaia Exploration LLC | Cumberland, OH 43732-9760-9760 | Oil & Gas Operator | Dec 2023 |
| 112 | Gas & Oil Pipe Supply | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2006 |
| 113 | Geo Energy Inc | Dublin, OH 43017 | Oil & Gas Operator | Dec 1989 |
| 114 | Geopetro Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1994 |
| 115 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Jan 2025 |
| 116 | Gomez Stella M | Warsaw, OH 43844 | Oil & Gas Operator | Dec 2010 |
| 117 | Gormley Joseph A | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2018 |
| 118 | Green Energy Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 119 | Green Gas Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 2020 |
| 120 | Gregg Price Corp | Dover, OH 44622 | Oil & Gas Operator | Dec 2014 |
| 121 | Gress Oil & Gas | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2024 |
| 122 | Guardian Management Inc | Marion, OH 43302 | Oil & Gas Operator | Dec 1997 |
| 123 | H & D Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2023 |
| 124 | H & S Drilling Co Inc | Frazeysburg, OH 43822-0040-0040 | Oil & Gas Operator | Dec 2016 |
| 125 | H & S Operating Co., Inc. | Winesburg, OH 44690 | Oil & Gas Operator | Dec 2024 |
| 126 | H I Smith Oil & Gas Inc | Holmesville, OH 44633 | Oil & Gas Operator | Dec 2023 |
| 127 | Halter Ralph P | Robertsville, OH 44670 | Oil Operator | Dec 1999 |
| 128 | Hamblin Ralph Inc | MT Vernon, OH 43050 | Oil & Gas Operator | Dec 1991 |
| 129 | Hardesty Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 2023 |
| 130 | Hawke Inc | Barbertib, OH 44203 | Oil & Gas Operator | Dec 2024 |
| 131 | Helms Oil | Brinkhaven, OH 43006 | Oil Operator | Dec 2018 |
| 132 | Hill Drilling Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1997 |
| 133 | Hill William F | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1993 |
| 134 | Hoover Frank W Dba Cherokee Drilling | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2023 |
| 135 | Hoover Producing & Operating | Newark, OH 43055 | Oil & Gas Operator | Dec 2001 |
| 136 | Hopco Resources Inc | Columbus, OH 43065 | Oil & Gas Operator | Dec 2023 |
| 137 | Hopewell Oil & Gas Development Company | Columbus, OH 43228 | Oil & Gas Operator | Dec 2019 |
| 138 | Hortin & Huffman Pet Geol | Worthington, OH 43085 | Oil & Gas Operator | Dec 2000 |
| 139 | Independent Oil Investors | Lakeside, MI 49116 | Oil & Gas Operator | Dec 1992 |
| 140 | Inland Drilling Co Inc | Garretsville, OH 44231 | Oil & Gas Operator | Dec 1992 |
| 141 | J M Adams Roustabout & Pipeline Construction Inc. | New Concord, OH 43762 | Oil & Gas Operator | Dec 2023 |
| 142 | J. D. Gas & Oil, Inc. | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 143 | J. D. Oil & Gas, Inc. | North Canton, OH 44720 | Oil & Gas Operator | Dec 2011 |
| 144 | Jadoil Inc D Vernau | Newark, OH 43055 | Oil & Gas Operator | Dec 1990 |
| 145 | James Drilling Corp | Blairsville, PA 15717 | Oil & Gas Operator | Dec 2004 |
| 146 | James R Bernhardt Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 147 | James R Smail Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2020 |
| 148 | James Wray Inc | Utica, OH 43080 | Oil & Gas Operator | Dec 2023 |
| 149 | Jay Bee Production | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2023 |
| 150 | Jefferson Oil & Gas Company | Pickerington, OH 43147 | Oil & Gas Operator | Dec 2023 |
| 151 | Jerry Moore Inc | Hartville, OH 44632 | Oil & Gas Operator | Dec 2023 |
| 152 | Jerry Oil Co. | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 153 | John F Williams Oil Field Services Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2023 |
| 154 | Jonsu Oil Corp | Granville, OH 43023 | Oil & Gas Operator | Dec 1994 |
| 155 | JRD Energy | Wooster, OH 44691 | Oil & Gas Operator | Dec 1999 |
| 156 | KBD Oil And Gas Production LLC | Brinkhaven, OH 43006 | Oil & Gas Operator | Dec 2023 |
| 157 | Kenoil LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 158 | Kidd William E Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 1993 |
| 159 | Killbuck Oilfield Service | Killbuck, OH 44637 | Oil & Gas Operator | Dec 2022 |
| 160 | Kingston Oil Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 161 | Kistler John & Ruth | Newcomerstown, OH 43832 | Oil & Gas Operator | Dec 1998 |
| 162 | Kmfad Oil And Gas LLC | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2023 |
| 163 | Knox Energy Inc | Pataskala, OH 43062 | Oil & Gas Operator | Dec 2023 |
| 164 | KST Oil & Gas Co Inc | Tallmadge, OH 44278-1142-1142 | Oil & Gas Operator | Dec 1995 |
| 165 | Lake Region Oil Inc | Massillon, OH 44648 | Oil & Gas Operator | Dec 2023 |
| 166 | Landprovest Inc | Cambridge, OH 43725-858-858 | Oil & Gas Operator | Dec 1993 |
| 167 | LBJ Drilling Co Inc | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2023 |
| 168 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 169 | Levengood Oil & Gas(Us)In | Dover, OH 44621-2900-2900 | Oil & Gas Operator | Dec 1997 |
| 170 | Lincoln Oil Well Service | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 171 | LLP Gas And Oil Corporation | Dover, OH 44622 | Oil & Gas Operator | Dec 2023 |
| 172 | Lothes John W | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 173 | M & L Drilling Co | Utica, OH 43080-176-176 | Oil & Gas Operator | Dec 1992 |
| 174 | M & R Investments Ohio LLC | Birmingham, AL 35238 | Oil & Gas Operator | Dec 2019 |
| 175 | M C F Oil Co Inc | Dellroy, OH 44620 | Oil & Gas Operator | Dec 1995 |
| 176 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | Mar 2025 |
| 177 | Mackenco Inc | Columbus, OH 43235 | Oil & Gas Operator | Dec 2020 |
| 178 | Mallett Luke-Dba Mallett Energy | New Concord, OH 43762 | Oil & Gas Operator | Dec 2016 |
| 179 | Manitou Explor Co Inc | Granville, OH 43023 | Oil & Gas Operator | Dec 1997 |
| 180 | Maram Energy Inc | MT Vernon, OH 43050 | Oil & Gas Operator | Dec 2023 |
| 181 | Maranatha Exploration Inc | Killbuck, OH 44637 | Oil & Gas Operator | Dec 1992 |
| 182 | Mare Energy | Danville, OH 43014 | Oil & Gas Operator | Dec 2021 |
| 183 | Mare Energy LLC | Danville, OH 43014 | Oil & Gas Operator | Dec 2023 |
| 184 | Marion Operating Corp | Marion, OH 43301-0453-0453 | Oil & Gas Operator | Dec 2020 |
| 185 | Mason Drilling Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2022 |
| 186 | Mason John C | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1994 |
| 187 | Mason Producing Inc | Millersburg, OH 44654-2696 | Oil & Gas Operator | Dec 2023 |
| 188 | McDonald Dale E | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2023 |
| 189 | McKee Don Drill Co Inc | Newark, OH 43058 | Oil & Gas Operator | Dec 2012 |
| 190 | Melanie Oil Dril USA Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1989 |
| 191 | Meridian Oil & Gas Enter | Blairsville, PA 15717-0337-0337 | Oil & Gas Operator | Dec 2004 |
| 192 | Mesh LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 193 | Meyer Richard C Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |
| 194 | Meyers Marsha L | Danville, OH 43014 | Oil & Gas Operator | Dec 2007 |
| 195 | MFC Drilling Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2023 |
| 196 | Midwest Exploration Inc | Villa Park, IL 60181 | Oil & Gas Operator | Dec 1990 |
| 197 | Midwest Oil & Gas | Columbus, OH 43220-1836-1836 | Oil & Gas Operator | Dec 2021 |
| 198 | Miller Oil & Gas | Dundee, OH 44624-9629-9629 | Oil & Gas Operator | Dec 1998 |
| 199 | Miller Roy/R A Miller Energy LLC | Holmesville, OH 44633 | Oil & Gas Operator | Dec 2023 |
| 200 | Mke Producing Inc | Canton, OH 44735 | Oil & Gas Operator | Dec 2023 |