| 101 | DECKMAN UNIT | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 102 | DEEDS | Licking County, OH | Oil & Gas Property | Dec 2012 |
| 103 | DEEDS | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 104 | DEERFIELD | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 105 | DEERSVILLE HN FRA | Harrison County, OH | Oil & Gas Property | Jun 2025 |
| 106 | DEFFENBAUGH | Hocking County, OH | Oil & Gas Property | Dec 2015 |
| 107 | DEIBEL | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 108 | DEININGER | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 109 | DEIST JR | Monroe County, OH | Gas Property | Dec 2024 |
| 110 | DEL SCORCHO | Belmont County, OH | Gas Property | Jun 2025 |
| 111 | DELAPLAINE WA | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 112 | DELMAR 24-13-6 | Carroll County, OH | Oil & Gas Property | Jun 2025 |
| 113 | DELMAR SANOR | Columbiana County, OH | Oil & Gas Property | Dec 2024 |
| 114 | DELMUL | Ashtabula County, OH | Oil & Gas Property | Dec 1990 |
| 115 | DELONG | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 116 | DELONG UNIT | Monroe County, OH | Oil & Gas Property | Jun 2025 |
| 117 | DELORIS MITCHELL | Washington County, OH | Oil & Gas Property | Dec 1998 |
| 118 | DELPH GEORGE | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 119 | DELTA LAND INVESTMENT | Medina County, OH | Oil & Gas Property | Dec 1997 |
| 120 | DEMETER | Medina County, OH | Oil & Gas Property | Dec 2024 |
| 121 | DEMIS 12-12-6 | Harrison County, OH | Oil & Gas Property | Jun 2025 |
| 122 | DEMOSS | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 123 | DEMUTH | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 124 | DENBOW | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 125 | DENMAN | Licking County, OH | Oil & Gas Property | Dec 2024 |
| 126 | DENMAN | Trumbull County, OH | Oil & Gas Property | Dec 1990 |
| 127 | DENNING | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 128 | DENNIS | Perry County, OH | Oil & Gas Property | Dec 2012 |
| 129 | DENNIS HUCK | Washington County, OH | Oil & Gas Property | Dec 2017 |
| 130 | DENNY | Columbiana County, OH | Oil & Gas Property | Dec 2024 |
| 131 | DENNY | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 132 | DENOON | Jefferson County, OH | Oil & Gas Property | Jun 2025 |
| 133 | DENT | Muskingum County, OH | Oil & Gas Property | Dec 1996 |
| 134 | DEPUE | Athens County, OH | Oil & Gas Property | Dec 2023 |
| 135 | DEPUY | Washington County, OH | Gas Property | Dec 2024 |
| 136 | DEROLPH | Perry County, OH | Oil & Gas Property | Dec 2017 |
| 137 | DERRY | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 138 | DETE | Holmes County, OH | Oil & Gas Property | Dec 2000 |
| 139 | DETWEILER | Geauga County, OH | Oil & Gas Property | Dec 2024 |
| 140 | DETWEILER | Guernsey County, OH | Oil & Gas Property | Jun 2025 |
| 141 | DETWEILER JOHN W ETAL SWITZ26 | Monroe County, OH | Gas Property | Jun 2025 |
| 142 | DETWEILER R | Perry County, OH | Oil & Gas Property | Dec 1999 |
| 143 | DETWILER | Medina County, OH | Oil & Gas Property | Dec 2024 |
| 144 | DEUCHER | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 145 | DEUCKER 27-12-5 | Harrison County, OH | Oil & Gas Property | Jun 2025 |
| 146 | DEVORE | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 147 | DEVORE | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 148 | DEWEY | Hocking County, OH | Oil & Gas Property | Dec 1997 |
| 149 | DEWITT ZETTA | Muskingum County, OH | Oil Property | Dec 1999 |
| 150 | DEXTER REALTY CORP | Noble County, OH | Gas Property | Dec 1991 |
| 151 | DI MICHELE | Athens County, OH | Oil & Gas Property | Dec 2022 |
| 152 | DIAL | Wayne County, OH | Oil Property | Dec 2024 |
| 153 | DIAMOND | Lake County, OH | Oil & Gas Property | Dec 2018 |
| 154 | DIAMOND SHAMROCK | Lake County, OH | Oil & Gas Property | Dec 2021 |
| 155 | DIAMOND UNIT | Noble County, OH | Oil & Gas Property | Jun 2025 |
| 156 | DICK JO | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 157 | DICK YOUNG | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 158 | DICKENS | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 159 | DICKERHOOF | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 160 | DICKERSON | Guernsey County, OH | Oil & Gas Property | Dec 2016 |
| 161 | DICKEY | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 162 | DICKINSON | Guernsey County, OH | Oil & Gas Property | Dec 2023 |
| 163 | DICKINSON UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 164 | DICKSON | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 165 | DICKSON | Muskingum County, OH | Oil & Gas Property | Dec 2002 |
| 166 | DICKSON | Muskingum County, OH | Oil & Gas Property | Dec 2022 |
| 167 | DIERICK | Carroll County, OH | Oil & Gas Property | Dec 2009 |
| 168 | DIERINGER | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 169 | DIERKES | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 170 | DIEST | Monroe County, OH | Gas Property | Dec 2024 |
| 171 | DIETRICH | Monroe County, OH | Gas Property | Jun 2025 |
| 172 | DIETRICH | Medina County, OH | Oil & Gas Property | Dec 2024 |
| 173 | DIETZ | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 174 | DILGARD | Ashland County, OH | Oil & Gas Property | Dec 2020 |
| 175 | DILLER | Perry County, OH | Oil Property | Dec 2011 |
| 176 | DILLES BOTTOM | Belmont County, OH | Gas Property | Jun 2025 |
| 177 | DILLEY | Muskingum County, OH | Oil & Gas Property | Dec 2021 |
| 178 | DILLEY | Licking County, OH | Oil & Gas Property | Dec 2010 |
| 179 | DILLON | Muskingum County, OH | Oil & Gas Property | Dec 2005 |
| 180 | DILLON | Morgan County, OH | Oil & Gas Property | Dec 2006 |
| 181 | DILTS | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 182 | DIMMERLING | Noble County, OH | Oil & Gas Property | Dec 2024 |
| 183 | DIMMERLING | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 184 | DIMMERLING | Noble County, OH | Oil & Gas Property | Dec 2024 |
| 185 | DIMMERLING UNIT | Monroe County, OH | Oil & Gas Property | Jun 2025 |
| 186 | DINGESS | Muskingum County, OH | Oil & Gas Property | Dec 2015 |
| 187 | DINGEY | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 188 | DINGEY | Morgan County, OH | Oil & Gas Property | Dec 2014 |
| 189 | DINGUS UNIT | Noble County, OH | Oil & Gas Property | Jun 2025 |
| 190 | DIOCESS OF STEUBENVILLE AKA MONKS | Morgan County, OH | Oil & Gas Property | Dec 2024 |
| 191 | DIRENZO-FIMPLE UNIT | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 192 | DITTMER | Portage County, OH | Oil & Gas Property | Dec 1995 |
| 193 | DITTOE | Perry County, OH | Oil & Gas Property | Dec 1988 |
| 194 | DIXON POOL | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 195 | DK CARPENTER UNIT | Monroe County, OH | Oil & Gas Property | Jun 2025 |
| 196 | DOBBIN | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 197 | DOBBINS | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 198 | DOBRANSKY | Stark County, OH | Oil & Gas Property | Dec 2020 |
| 199 | DOCIE A | Athens County, OH | Oil & Gas Property | Dec 2024 |
| 200 | DOCTOR UNIT | Noble County, OH | Oil & Gas Property | Jun 2025 |