| 101 | Harris Engineering Co | Dallas, TX 75248 | Oil & Gas Operator | Dec 1996 |
| 102 | Harrison Energy | Tippecanoe, OH 44699 | Oil & Gas Operator | Dec 2000 |
| 103 | Holl Investment Co | Logan, OH 43138 | Oil & Gas Operator | Dec 2019 |
| 104 | Hoover Producing & Operating | Newark, OH 43055 | Oil & Gas Operator | Dec 2001 |
| 105 | Hopco Resources Inc | Columbus, OH 43065 | Oil & Gas Operator | Dec 2023 |
| 106 | Hopewell Oil & Gas Development Company | Columbus, OH 43228 | Oil & Gas Operator | Dec 2019 |
| 107 | Hortin & Huffman Pet Geol | Worthington, OH 43085 | Oil & Gas Operator | Dec 2000 |
| 108 | Householder Oil Co | Junction City, OH 43748 | Oil & Gas Operator | Dec 1988 |
| 109 | Howdyshell Pumping Inc | Logan, OH 43138 | Oil Operator | Dec 2022 |
| 110 | Huffman-Bowers Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2022 |
| 111 | Irvin Drilling Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1990 |
| 112 | J M Adams Roustabout & Pipeline Construction Inc. | New Concord, OH 43762 | Oil & Gas Operator | Dec 2023 |
| 113 | J R Development Co | Pickerington, OH 43147 | Oil & Gas Operator | Dec 1997 |
| 114 | J T Plus Well Service LLC | Corning, OH 43730 | Oil & Gas Operator | Dec 2023 |
| 115 | J. D. Gas & Oil, Inc. | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 116 | J.D. Drilling Co. | Basehor, KS 66007 | Oil & Gas Operator | Dec 2022 |
| 117 | Jadoil Inc D Vernau | Newark, OH 43055 | Oil & Gas Operator | Dec 1990 |
| 118 | James R Smail Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2020 |
| 119 | James Wray Inc | Utica, OH 43080 | Oil & Gas Operator | Dec 2023 |
| 120 | Janco Well Operation | Canton, OH 44735 | Oil & Gas Operator | Dec 1993 |
| 121 | Jeanie Enterprises LLC | Somerset, OH 43783 | Oil & Gas Operator | Dec 2023 |
| 122 | Jefferson Oil & Gas Company | Pickerington, OH 43147 | Oil & Gas Operator | Dec 2022 |
| 123 | JHC II LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 124 | Johnson M & Gingerich M | New Lexington, OH 43764 | Oil & Gas Operator | Dec 1995 |
| 125 | Johnson Mike | MT Perry, OH 43760 | Oil & Gas Operator | Dec 2018 |
| 126 | Johnson Oil & Gas LLC | Mount Perry, OH 43760-9641-9641 | Oil & Gas Operator | Dec 2023 |
| 127 | Jonsu Oil Corp | Granville, OH 43023 | Oil & Gas Operator | Dec 1994 |
| 128 | JRM Oil Co | Dalton, OH 44618 | Oil & Gas Operator | Dec 1993 |
| 129 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |
| 130 | Keller Brothers & Co | Nelsonville, OH 45764 | Oil Operator | Dec 2019 |
| 131 | Kenoil LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 132 | Ketcham VIctor A | Columbus, OH 43214 | Oil Operator | Dec 2021 |
| 133 | Kilbarger Investments Inc | Logan, OH 43138 | Oil & Gas Operator | Dec 2022 |
| 134 | Kingston Oil Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 135 | Knox Energy Inc | Pataskala, OH 43062 | Oil & Gas Operator | Dec 2023 |
| 136 | KST Oil & Gas Co Inc | Tallmadge, OH 44278-1142-1142 | Oil & Gas Operator | Dec 1995 |
| 137 | L & M Petroleum Co | Reno, OH 45773 | Oil & Gas Operator | Dec 1987 |
| 138 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 139 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 140 | Logan Clay Prod Company | Logan, OH 43138 | Oil & Gas Operator | Dec 2005 |
| 141 | Luoil Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2023 |
| 142 | Lydic, W. J., Inc. | Zanesville, OH 43702-2310-2310 | Oil & Gas Operator | Jan 2005 |
| 143 | M & R Investments Ohio LLC | Birmingham, AL 35238 | Oil & Gas Operator | Dec 2019 |
| 144 | M & S Oil Co | Lawrenceburg, IN 47025-8675-8675 | Oil & Gas Operator | Aug 2000 |
| 145 | Mackenco Inc | Columbus, OH 43235 | Oil & Gas Operator | Dec 2020 |
| 146 | Marion Operating Corp | Marion, OH 43301-0453-0453 | Oil & Gas Operator | Dec 2020 |
| 147 | Marjac Energy Co | Bremen, OH 43107 | Oil & Gas Operator | Dec 1986 |
| 148 | Mason John C | Millersburg, OH 44654 | Oil & Gas Operator | Dec 1994 |
| 149 | Matt Prod Enterprises | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2017 |
| 150 | McCandlish R L Oil Co Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 1997 |
| 151 | McKee Don Drill Co Inc | Newark, OH 43058 | Oil & Gas Operator | Dec 2012 |
| 152 | Megas Corp | North Ridgevill, OH 44039 | Oil & Gas Operator | Dec 1984 |
| 153 | Meridian Energy Company | Cambridge, OH 43725 | Oil & Gas Operator | Dec 2010 |
| 154 | Mesh LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2023 |
| 155 | Metzger Ed W & Sue | Junction City, OH 43748 | Oil Operator | Dec 2023 |
| 156 | Metzger Francis A | Junction City, OH 43748 | Oil & Gas Operator | Dec 1999 |
| 157 | Metzgers Bob | Junction City, OH 43748 | Oil & Gas Operator | Dec 2022 |
| 158 | MFC Drilling Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2023 |
| 159 | Mga Energy Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2023 |
| 160 | MH Oilfield Service LLC | Amesville, OH 45711 | Oil & Gas Operator | Dec 2022 |
| 161 | Mid-Con Petroleum Co Inc | Heath, OH 43056 | Oil & Gas Operator | Dec 2010 |
| 162 | Midland Oil Co | Brownsville, OH 43721 | Oil & Gas Operator | Dec 2000 |
| 163 | Midwest Exploration Inc | Villa Park, IL 60181 | Oil & Gas Operator | Dec 1990 |
| 164 | Midwest Oil & Gas | Columbus, OH 43220-1836-1836 | Oil & Gas Operator | Dec 2021 |
| 165 | Miller William P Jr | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1997 |
| 166 | Mobreal Oil Inc | Wilmington, DE 19808 | Oil & Gas Operator | Dec 1989 |
| 167 | Monday Creek Resources LTD | Logan, OH 43138 | Oil Operator | Dec 2022 |
| 168 | Mossholder Linda Dba | Newark, OH 43055 | Oil & Gas Operator | Dec 2015 |
| 169 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2022 |
| 170 | Mutual Oil & Gas Co | Akron, OH 44313 | Oil & Gas Operator | Dec 2001 |
| 171 | N & N Oil | Somerset, OH 43783 | Oil & Gas Operator | Dec 2014 |
| 172 | Newstar Energy USA Inc | Thornville, OH 43076 | Oil & Gas Operator | Aug 2004 |
| 173 | Ngo Development Corp. | Newark, OH 43058 | Oil & Gas Operator | Dec 2023 |
| 174 | Noble Gas Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 1997 |
| 175 | Noble Oil Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1996 |
| 176 | North Amer Petroleum Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 177 | Northwood Energy Corp | Columbus, OH 43221 | Oil & Gas Operator | Dec 2023 |
| 178 | Nuttco Oil & Gas | Corning, OH 43730 | Oil & Gas Operator | Dec 2010 |
| 179 | Oak Dale Drilling Co | Logan, OH 43138-1851-1851 | Oil & Gas Operator | Dec 2015 |
| 180 | Ohio L & M Company Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2008 |
| 181 | Ohio Production* | Newark, OH 43055 | Oil & Gas Operator | Dec 1987 |
| 182 | Oil Enterprises | Logan, OH 43138 | Oil & Gas Operator | Dec 2022 |
| 183 | Omac Oil & Gas Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1990 |
| 184 | Orwig Oil Company Inc | Bradenton, FL 34212 | Oil & Gas Operator | Dec 2022 |
| 185 | Ows Acquisition Co LLC | Bolivar, OH 44612 | Oil & Gas Operator | Dec 2022 |
| 186 | Oxford Oil | Zanesville, OH 43702-0910-0910 | Oil & Gas Operator | Dec 2012 |
| 187 | Paroco DRLG Funds Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1993 |
| 188 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 189 | Pelican Producing Inc | Caldwell, OH 43724 | Oil & Gas Operator | Dec 1996 |
| 190 | Pepper Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1992 |
| 191 | Petro Quest Inc | Guysville, OH 45735 | Oil & Gas Operator | Dec 2023 |
| 192 | Petroleum Development Cor | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2004 |
| 193 | Petrox, Inc | Streetsboro, OH 44241 | Oil & Gas Operator | Dec 2023 |
| 194 | Pettigrew Pumping Service Inc | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2023 |
| 195 | Pilot Energy LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2013 |
| 196 | Pineco | Laurelville, OH 43135 | Oil & Gas Operator | Dec 2023 |
| 197 | Porter Petroleum | Hopewell, OH 43746 | Oil & Gas Operator | Dec 2021 |
| 198 | Poston Operating Co Inc | Ashley, OH 43003 | Oil & Gas Operator | Dec 2003 |
| 199 | Power Resour Oper Co Inc | Canton, OH 44718 | Oil & Gas Operator | Dec 2005 |
| 200 | Progressive Oil & Gas | Moxahala, OH 43761 | Oil & Gas Operator | Dec 2023 |