| 201 | DEWEES | Bradford County, PA | Gas Property | Feb 2024 |
| 202 | DEWEY | Armstrong County, PA | Oil & Gas Property | Dec 2023 |
| 203 | DEWING 05 100 0 | Bradford County, PA | Gas Property | Feb 2024 |
| 204 | DEYARMIN | Indiana County, PA | Gas Property | Dec 2023 |
| 205 | DF BROWN | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 206 | DF GOURLEY | Jefferson County, PA | Gas Property | Dec 2023 |
| 207 | DGSM | Bradford County, PA | Gas Property | Jan 2024 |
| 208 | DIAMOND | Fayette County, PA | Gas Property | Dec 2022 |
| 209 | DIAZ | Susquehanna County, PA | Gas Property | Feb 2024 |
| 210 | DIAZ FAMILY L P | Susquehanna County, PA | Gas Property | Feb 2024 |
| 211 | DIAZ FAMILY LP 0 | Susquehanna County, PA | Gas Property | Feb 2024 |
| 212 | DIAZ M 0 | Susquehanna County, PA | Gas Property | Feb 2024 |
| 213 | DIAZ M 06 | Susquehanna County, PA | Gas Property | Feb 2024 |
| 214 | DICARLO | Fayette County, PA | Oil & Gas Property | Feb 2024 |
| 215 | DICE | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 216 | DICENZO | Fayette County, PA | Gas Property | Dec 2023 |
| 217 | DICESARE F PARTNERSHIP 00 | Westmoreland County, PA | Gas Property | Dec 2023 |
| 218 | DICK | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 219 | DICK-1 | Indiana County, PA | Gas Property | Dec 2023 |
| 220 | DICKEY | Armstrong County, PA | Gas Property | Feb 2024 |
| 221 | DICKEY | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 222 | DICKEY | Warren County, PA | Oil & Gas Property | Dec 2015 |
| 223 | DICKEY | Clearfield County, PA | Gas Property | Dec 2023 |
| 224 | DICKEY LUMBER CO | Clearfield County, PA | Gas Property | Dec 2023 |
| 225 | DICKINSON | Elk County, PA | Oil & Gas Property | Dec 2023 |
| 226 | DIKEMAN | McKean County, PA | Oil Property | Dec 2023 |
| 227 | DILLAWAY | Potter County, PA | Oil & Gas Property | Dec 2012 |
| 228 | DILLINGER EDWIN | Fayette County, PA | Gas Property | Dec 2023 |
| 229 | DILLON | Cambria County, PA | Gas Property | Dec 2023 |
| 230 | DILLON | Fayette County, PA | Gas Property | Dec 2023 |
| 231 | DIMMIG | Wyoming County, PA | Gas Property | Feb 2024 |
| 232 | DINDIOS | Cambria County, PA | Gas Property | Dec 2023 |
| 233 | DINNEEN | Crawford County, PA | Gas Property | Dec 2023 |
| 234 | DIOCESE OF ERIE | Warren County, PA | Gas Property | Dec 2023 |
| 235 | DIXON | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 236 | DIXON | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 237 | DIXON S LIGHTCAP | Indiana County, PA | Gas Property | Dec 2023 |
| 238 | DJ BRA | Bradford County, PA | Gas Property | Feb 2024 |
| 239 | DK GAS/HOLLOBAUGH | Clarion County, PA | Gas Property | Dec 2023 |
| 240 | DK GAS/ROGER SHORE TRACT | Clarion County, PA | Gas Property | Dec 2023 |
| 241 | DMC PROPERTIES | Washington County, PA | Gas Property | Feb 2024 |
| 242 | DOBROSIELSKI | Susquehanna County, PA | Gas Property | Feb 2024 |
| 243 | DOBSON | Jefferson County, PA | Gas Property | Dec 2023 |
| 244 | DOEBLER UNIT | Lycoming County, PA | Gas Property | Feb 2024 |
| 245 | DOG RUN HUNTING CLUB UNIT | Lycoming County, PA | Gas Property | Feb 2024 |
| 246 | DOLLIE BECKMAN | Clearfield County, PA | Gas Property | Dec 2023 |
| 247 | DON C FREDERICK | Venango County, PA | Oil Property | Dec 2023 |
| 248 | DON FLAMENCO | Greene County, PA | Gas Property | Feb 2024 |
| 249 | DON J DAVIS A | Lycoming County, PA | Gas Property | Feb 2024 |
| 250 | DONAHEY HEIRS | Washington County, PA | Oil Property | Dec 2012 |
| 251 | DONAHOO | Washington County, PA | Gas Property | Feb 2024 |
| 252 | DONAHUE & WHITE 0 | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 253 | DONALD | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 254 | DONALD | Erie County, PA | Gas Property | Dec 2023 |
| 255 | DONALD BOGDANSKI ET AL | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 256 | DONALD E & MABEL S MARTIN | Indiana County, PA | Gas Property | Dec 2023 |
| 257 | DONALD G & LOIS JEAN WINDOWS | Armstrong County, PA | Gas Property | Dec 2023 |
| 258 | DONALD H | Crawford County, PA | Gas Property | Dec 2023 |
| 259 | DONALD MAUTHE | Clarion County, PA | Gas Property | Dec 2023 |
| 260 | DONALD MCCRAY | Crawford County, PA | Gas Property | Dec 2023 |
| 261 | DONALD P MCPHERSON | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 262 | DONALD POWELL | Jefferson County, PA | Gas Property | Dec 2023 |
| 263 | DONALD SHIREY | Clarion County, PA | Gas Property | Dec 2022 |
| 264 | DONALD STREAMS | Indiana County, PA | Gas Property | Dec 2023 |
| 265 | DONALD STROUP | Armstrong County, PA | Gas Property | Dec 2023 |
| 266 | DONALD W DEITZ | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 267 | DONALD W STREAMS | Indiana County, PA | Gas Property | Dec 2023 |
| 268 | DONEY | Westmoreland County, PA | Oil & Gas Property | Feb 2024 |
| 269 | DONLEY | Greene County, PA | Oil & Gas Property | Feb 2024 |
| 270 | DONNA | Bradford County, PA | Gas Property | Feb 2024 |
| 271 | DONNA CLARE DC | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 272 | DONOVAN OR STEWART RUN CLUB | Venango County, PA | Oil Property | Dec 2023 |
| 273 | DORADO | Butler County, PA | Gas Property | Feb 2024 |
| 274 | DORAZIO | Fayette County, PA | Gas Property | Dec 2023 |
| 275 | DORN (02-180 | Tioga County, PA | Gas Property | Feb 2024 |
| 276 | DOROTHEA TAYLOR T | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 277 | DOROTHY MCNAUGHTON | Indiana County, PA | Gas Property | Dec 2023 |
| 278 | DORSCH UNIT | Butler County, PA | Oil & Gas Property | Feb 2024 |
| 279 | DOSS | Bradford County, PA | Gas Property | Feb 2024 |
| 280 | DOTTS | Clearfield County, PA | Gas Property | Dec 2023 |
| 281 | DOTY | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 282 | DOUGHERTY | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 283 | DOUGHERTY HEIRS | Clarion County, PA | Gas Property | Dec 2023 |
| 284 | DOUGLAS BIEDA | Westmoreland County, PA | Gas Property | Dec 2023 |
| 285 | DOUGLAS E. BIEDA | Indiana County, PA | Gas Property | Dec 2023 |
| 286 | DOUGLAS G MINICH | Clarion County, PA | Gas Property | Dec 2023 |
| 287 | DOUGLAS HEIRS | Indiana County, PA | Gas Property | Dec 2023 |
| 288 | DOUGLAS MINICH | Clarion County, PA | Gas Property | Dec 2022 |
| 289 | DOUTHIT 00 | Jefferson County, PA | Gas Property | Dec 2023 |
| 290 | DOVEN SPIKE | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 291 | DOVERSPIKE | Jefferson County, PA | Gas Property | Dec 2023 |
| 292 | DOVERSPIKE | Armstrong County, PA | Gas Property | Dec 2023 |
| 293 | DOVERSPIKE EBERLE 00 | Armstrong County, PA | Gas Property | Dec 2023 |
| 294 | DPH NE 1H | Wyoming County, PA | Gas Property | Feb 2024 |
| 295 | DPH NW | Wyoming County, PA | Gas Property | Feb 2024 |
| 296 | DPH SE | Wyoming County, PA | Gas Property | Feb 2024 |
| 297 | DPH SW | Wyoming County, PA | Gas Property | Feb 2024 |
| 298 | DR C M SMITH | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 299 | DR02 WT5201 CP | Forest County, PA | Oil & Gas Property | Feb 2024 |
| 300 | DRACO | Butler County, PA | Gas Property | Feb 2024 |