| 101 | H & S Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2016 |
| 102 | H I Smith Oil & Gas Inc | Holmesville, OH 44633 | Oil & Gas Operator | Dec 2024 |
| 103 | Hamblin Ralph Inc | MT Vernon, OH 43050 | Oil & Gas Operator | Dec 1991 |
| 104 | Hardesty Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 2024 |
| 105 | Hardin Hanley E | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1995 |
| 106 | Hill William F | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1993 |
| 107 | Hoover Frank W Dba Cherokee Drilling | Miramar Beach, FL 32550 | Oil & Gas Operator | Dec 2024 |
| 108 | Hoover Producing & Operating | Newark, OH 43055 | Oil & Gas Operator | Dec 2001 |
| 109 | Hopewell Oil & Gas Development Company | Columbus, OH 43228 | Oil & Gas Operator | Dec 2019 |
| 110 | Hortin & Huffman Pet Geol | Worthington, OH 43085 | Oil & Gas Operator | Dec 2000 |
| 111 | Houghton Investments LLC | Columbus, OH 43235 | Oil & Gas Operator | Dec 2025 |
| 112 | Huffman-Bowers Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2025 |
| 113 | Inland Drilling Co Inc | Garretsville, OH 44231 | Oil & Gas Operator | Dec 1992 |
| 114 | Inland Petroleum | Newark, OH 43055 | Oil Operator | Dec 2009 |
| 115 | Irvin Drilling Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1990 |
| 116 | J. D. Gas & Oil, Inc. | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2025 |
| 117 | Jack Moran Oil Co | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2009 |
| 118 | Jadoil Inc D Vernau | Newark, OH 43055 | Oil & Gas Operator | Dec 1990 |
| 119 | James Wray Inc | Utica, OH 43080 | Oil & Gas Operator | Dec 2025 |
| 120 | Jay Bee Production | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2023 |
| 121 | Jerry Oil Co. | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 122 | JHC II LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2025 |
| 123 | Jonsu Oil Corp | Granville, OH 43023 | Oil & Gas Operator | Dec 1994 |
| 124 | Kenoil LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 125 | Kidd William E Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 1993 |
| 126 | King Petroleum 2 | Nashport, OH 43830 | Oil & Gas Operator | Dec 2023 |
| 127 | Knox Energy Inc | New Albany, OH 43054 | Oil & Gas Operator | Dec 2024 |
| 128 | L & S Oil And Gas | Newark, OH 43055-8732 | Oil & Gas Operator | Dec 2014 |
| 129 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 130 | LBJ Drilling Co Inc | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2024 |
| 131 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 132 | Lincoln Oil Well Service | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 133 | Lippizan Petroleum, Inc. | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2025 |
| 134 | Lothes John W | Newark, OH 43055 | Oil & Gas Operator | Dec 2025 |
| 135 | Ludco Inc | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1986 |
| 136 | Ludwig Cleo R | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1987 |
| 137 | Lydic, W. J., Inc. | Zanesville, OH 43702-2310 | Oil & Gas Operator | Jan 2005 |
| 138 | M & L Drilling Co | Utica, OH 43080 | Oil & Gas Operator | Dec 1992 |
| 139 | M & R Investments Ohio LLC | Birmingham, AL 35238 | Oil & Gas Operator | Dec 2019 |
| 140 | Mackenco Inc | Columbus, OH 43235 | Oil & Gas Operator | Dec 2020 |
| 141 | Mallett Luke-Dba Mallett Energy | New Concord, OH 43762 | Oil & Gas Operator | Dec 2016 |
| 142 | Maram Energy Inc | MT Vernon, OH 43050 | Oil & Gas Operator | Dec 2024 |
| 143 | Mare Energy | Danville, OH 43014 | Oil & Gas Operator | Dec 2021 |
| 144 | Marion Operating Corp | Marion, OH 43301 | Oil & Gas Operator | Dec 2020 |
| 145 | Mason Drilling Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2022 |
| 146 | McClain Oil Co | Granville, OH 43023 | Oil & Gas Operator | Dec 1988 |
| 147 | McDonald Dale E | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2024 |
| 148 | McKee Don Drill Co Inc | Newark, OH 43058 | Oil & Gas Operator | Dec 2012 |
| 149 | McQueen Kevin L | Newark, OH 43055 | Oil Operator | Dec 2024 |
| 150 | Meridian Energy Company | Cambridge, OH 43725 | Oil & Gas Operator | Dec 2010 |
| 151 | Mesh LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2025 |
| 152 | Metzgers Bob | Junction City, OH 43748 | Oil & Gas Operator | Dec 2024 |
| 153 | Meyer Richard C Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |
| 154 | MFC Drilling Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2024 |
| 155 | MH Oilfield Service LLC | Amesville, OH 45711 | Oil & Gas Operator | Dec 2023 |
| 156 | Michigan Geosearch Inc | Lansing, MI 48917 | Oil & Gas Operator | Apr 2026 |
| 157 | Mid Atlantic Oil Co | Hillsdale, MI 49242 | Oil & Gas Operator | Dec 1999 |
| 158 | Mid-Con Petroleum Co Inc | Heath, OH 43056 | Oil & Gas Operator | Dec 2010 |
| 159 | Midland Oil Co | Brownsville, OH 43721 | Oil & Gas Operator | Dec 2000 |
| 160 | Midwest Exploration Inc | Villa Park, IL 60181 | Oil & Gas Operator | Dec 1990 |
| 161 | Miller William P Jr | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1997 |
| 162 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 163 | Moran James R | Frazeysburg, OH 43822 | Oil Operator | Dec 2017 |
| 164 | Moran Oil Partners LLC | Utica, OH 43080 | Oil Operator | Dec 2024 |
| 165 | Moran Ronald F | Frazeysburgysburg, OH 43822 | Oil & Gas Operator | Dec 2024 |
| 166 | Moran Sherman Dean | Utica, OH 43080 | Oil & Gas Operator | Dec 2024 |
| 167 | Moran Well Service Inc. | Gambier, OH 43022 | Oil & Gas Operator | Dec 2023 |
| 168 | Morgan Pennington Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 1990 |
| 169 | Mormack Ind Inc | Orrville, OH 44667 | Oil & Gas Operator | Dec 2025 |
| 170 | Mossholder Drilling Co | Newark, OH 43055 | Oil Operator | Dec 1990 |
| 171 | Mossholder Linda Dba | Newark, OH 43055 | Oil & Gas Operator | Dec 2015 |
| 172 | Mount Richard | Newark, OH 43055 | Oil Operator | Dec 2005 |
| 173 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2024 |
| 174 | National Energy Exp Inc | Centerville, OH 45458-2005 | Oil & Gas Operator | Dec 2024 |
| 175 | Nethers Brothers LLC | Newark, OH 43055 | Oil & Gas Operator | Dec 2025 |
| 176 | Nethers Gary L | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 177 | Nethers Oil And Gas LLC | Newark, OH 43055 | Oil Operator | Dec 2025 |
| 178 | Ngo Development Corp. | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 179 | Noble Oil Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1996 |
| 180 | North Amer Petroleum Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 181 | Northwood Energy Corp | Columbus, OH 43221 | Oil & Gas Operator | Dec 2025 |
| 182 | Og Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 2026 |
| 183 | Ohio Oil & Gas | Fowler, OH 44418 | Oil & Gas Operator | Dec 1988 |
| 184 | Ows Acquisition Co LLC | Louisville, OH 44641 | Oil & Gas Operator | Dec 2025 |
| 185 | Oxford Oil | Zanesville, OH 43702 | Oil & Gas Operator | Dec 2012 |
| 186 | Pedgeco Inc | Cleveland, OH 44115 | Oil & Gas Operator | Dec 1984 |
| 187 | Pepper Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1992 |
| 188 | Petro Drilling Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1993 |
| 189 | Petro Quest Inc | Guysville, OH 45735 | Oil & Gas Operator | Dec 2024 |
| 190 | Petroc Company | Rocky River, OH 44116 | Oil Operator | Dec 2008 |
| 191 | Phillips Margaret E | Newark, OH 43055 | Oil Operator | Dec 1993 |
| 192 | Pinevue Farms | Chillicothe, OH 45601 | Oil & Gas Operator | Dec 1993 |
| 193 | Porter Brothers | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1995 |
| 194 | Porter Petroleum | Hopewell, OH 43746 | Oil & Gas Operator | Dec 2021 |
| 195 | Porter Petroleum Of Seo LLC | Hopewell, OH 43746 | Oil Operator | Dec 2024 |
| 196 | Poston Operating Co Inc | Ashley, OH 43003 | Oil & Gas Operator | Dec 2003 |
| 197 | Prime Energy Corp | Charleston, WV 25301-1707 | Oil & Gas Operator | Sep 2015 |
| 198 | Prime Time Energy Investment Inc | MT Vernon, OH 43050 | Oil & Gas Operator | Dec 2024 |
| 199 | Quadrant Exploration Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2000 |
| 200 | Quaker State Oil Ref Corp | North Canton, OH 44720-1541 | Oil & Gas Operator | Dec 1994 |