| 101 | DEFFENBAUGH | Hocking County, OH | Oil & Gas Property | Dec 2015 |
| 102 | DEIBEL | Coshocton County, OH | Oil & Gas Property | Dec 2023 |
| 103 | DEININGER | Carroll County, OH | Oil & Gas Property | Dec 2022 |
| 104 | DEIST JR | Monroe County, OH | Gas Property | Dec 2023 |
| 105 | DEL SCORCHO | Belmont County, OH | Gas Property | Dec 2023 |
| 106 | DELAPLAINE WA | Monroe County, OH | Oil & Gas Property | Dec 2022 |
| 107 | DELMAR 24-13-6 | Carroll County, OH | Oil & Gas Property | Dec 2023 |
| 108 | DELMAR SANOR | Columbiana County, OH | Oil & Gas Property | Dec 2023 |
| 109 | DELMUL | Ashtabula County, OH | Oil & Gas Property | Dec 1990 |
| 110 | DELONG | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 111 | DELONG UNIT | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 112 | DELPH GEORGE | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 113 | DELTA LAND INVESTMENT | Medina County, OH | Oil & Gas Property | Dec 1997 |
| 114 | DEMETER | Medina County, OH | Oil & Gas Property | Dec 2022 |
| 115 | DEMIS 12-12-6 | Harrison County, OH | Oil & Gas Property | Dec 2023 |
| 116 | DEMOSS | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 117 | DEMUTH | Tuscarawas County, OH | Oil & Gas Property | Dec 2022 |
| 118 | DENBOW | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 119 | DENMAN | Licking County, OH | Oil & Gas Property | Dec 2023 |
| 120 | DENMAN | Trumbull County, OH | Oil & Gas Property | Dec 1990 |
| 121 | DENNING | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 122 | DENNIS HUCK | Washington County, OH | Oil & Gas Property | Dec 2017 |
| 123 | DENNY | Columbiana County, OH | Oil & Gas Property | Dec 2022 |
| 124 | DENNY | Holmes County, OH | Oil & Gas Property | Dec 2023 |
| 125 | DENOON | Jefferson County, OH | Oil & Gas Property | Dec 2023 |
| 126 | DENT | Muskingum County, OH | Oil & Gas Property | Dec 1996 |
| 127 | DEPUE | Athens County, OH | Oil & Gas Property | Dec 2022 |
| 128 | DEROLPH | Perry County, OH | Oil & Gas Property | Dec 2017 |
| 129 | DERRY | Muskingum County, OH | Oil & Gas Property | Dec 2023 |
| 130 | DETE | Holmes County, OH | Oil & Gas Property | Dec 2000 |
| 131 | DETWEILER | Geauga County, OH | Oil & Gas Property | Dec 2022 |
| 132 | DETWEILER | Guernsey County, OH | Oil & Gas Property | Dec 2023 |
| 133 | DETWEILER JOHN W ETAL SWITZ26 | Monroe County, OH | Gas Property | Dec 2023 |
| 134 | DETWEILER R | Perry County, OH | Oil & Gas Property | Dec 1999 |
| 135 | DETWILER | Medina County, OH | Oil & Gas Property | Dec 2023 |
| 136 | DEUCHER | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 137 | DEUCKER 27-12-5 | Harrison County, OH | Oil & Gas Property | Dec 2023 |
| 138 | DEVORE | Coshocton County, OH | Oil & Gas Property | Dec 2022 |
| 139 | DEVORE | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 140 | DEWEY | Hocking County, OH | Oil & Gas Property | Dec 1997 |
| 141 | DEWITT ZETTA | Muskingum County, OH | Oil Property | Dec 1999 |
| 142 | DI MICHELE | Athens County, OH | Oil & Gas Property | Dec 2022 |
| 143 | DIAL | Wayne County, OH | Oil Property | Dec 2023 |
| 144 | DIAMOND | Lake County, OH | Oil & Gas Property | Dec 2018 |
| 145 | DIAMOND SHAMROCK | Lake County, OH | Oil & Gas Property | Dec 2021 |
| 146 | DIAMOND UNIT | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 147 | DICK JO | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 148 | DICK YOUNG | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 149 | DICKENS | Holmes County, OH | Oil & Gas Property | Dec 2023 |
| 150 | DICKERHOOF | Stark County, OH | Oil & Gas Property | Dec 2022 |
| 151 | DICKERSON | Guernsey County, OH | Oil & Gas Property | Dec 2016 |
| 152 | DICKEY | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 153 | DICKINSON | Guernsey County, OH | Oil & Gas Property | Dec 2023 |
| 154 | DICKINSON UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 155 | DICKSON | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 156 | DICKSON | Muskingum County, OH | Oil & Gas Property | Dec 2002 |
| 157 | DICKSON | Muskingum County, OH | Oil & Gas Property | Dec 2022 |
| 158 | DICKSON CRC JF | Jefferson County, OH | Gas Property | Dec 2023 |
| 159 | DIERICK | Carroll County, OH | Oil & Gas Property | Dec 2009 |
| 160 | DIERINGER | Stark County, OH | Oil & Gas Property | Dec 2023 |
| 161 | DIERKES | Mahoning County, OH | Oil & Gas Property | Dec 2023 |
| 162 | DIEST | Monroe County, OH | Gas Property | Dec 2023 |
| 163 | DIETRICH | Monroe County, OH | Gas Property | Dec 2023 |
| 164 | DIETRICH | Medina County, OH | Oil & Gas Property | Dec 2023 |
| 165 | DIETZ | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 166 | DILGARD | Ashland County, OH | Oil & Gas Property | Dec 2020 |
| 167 | DILLER | Perry County, OH | Oil Property | Dec 2011 |
| 168 | DILLES BOTTOM | Belmont County, OH | Gas Property | Dec 2023 |
| 169 | DILLEY | Muskingum County, OH | Oil & Gas Property | Dec 2021 |
| 170 | DILLEY | Licking County, OH | Oil & Gas Property | Dec 2010 |
| 171 | DILLON | Muskingum County, OH | Oil & Gas Property | Dec 2005 |
| 172 | DILLON | Morgan County, OH | Oil & Gas Property | Dec 2006 |
| 173 | DILTS | Muskingum County, OH | Oil & Gas Property | Dec 2023 |
| 174 | DIMMERLING | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 175 | DIMMERLING | Stark County, OH | Oil & Gas Property | Dec 2023 |
| 176 | DIMMERLING | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 177 | DIMMERLING UNIT | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 178 | DINGESS | Muskingum County, OH | Oil & Gas Property | Dec 2015 |
| 179 | DINGEY | Muskingum County, OH | Oil & Gas Property | Dec 2023 |
| 180 | DINGEY | Morgan County, OH | Oil & Gas Property | Dec 2014 |
| 181 | DINGUS UNIT | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 182 | DIOCESS OF STEUBENVILLE AKA MONKS | Morgan County, OH | Oil & Gas Property | Dec 2023 |
| 183 | DIRENZO-FIMPLE UNIT | Stark County, OH | Oil & Gas Property | Dec 2023 |
| 184 | DITTMER | Portage County, OH | Oil & Gas Property | Dec 1995 |
| 185 | DITTOE | Perry County, OH | Oil & Gas Property | Dec 1988 |
| 186 | DIXON POOL | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 187 | DK CARPENTER UNIT | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 188 | DOBBIN | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 189 | DOBRANSKY | Stark County, OH | Oil & Gas Property | Dec 2020 |
| 190 | DOCIE A | Athens County, OH | Oil & Gas Property | Dec 2019 |
| 191 | DOCTOR UNIT | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 192 | DODDERER | Meigs County, OH | Oil & Gas Property | Dec 1998 |
| 193 | DODRILL | Licking County, OH | Oil & Gas Property | Dec 2023 |
| 194 | DODSON | Harrison County, OH | Oil & Gas Property | Dec 2023 |
| 195 | DOLAN | Ashtabula County, OH | Oil & Gas Property | Dec 2007 |
| 196 | DOLLISON | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 197 | DOMINATOR | Belmont County, OH | Gas Property | Dec 2023 |
| 198 | DOMINO CDZ HR | Harrison County, OH | Oil & Gas Property | Dec 2023 |
| 199 | DOMINO N | Harrison County, OH | Oil & Gas Property | Dec 2023 |
| 200 | DOMINO NE CDZ HR 7H-A | Harrison County, OH | Oil & Gas Property | Dec 2023 |