| 1801 | DK GAS/HOLLOBAUGH | Clarion County, PA | Gas Property | Dec 2023 |
| 1802 | DK GAS/ROGER SHORE TRACT | Clarion County, PA | Gas Property | Dec 2023 |
| 1803 | DMC PROPERTIES | Washington County, PA | Gas Property | Sep 2024 |
| 1804 | DOBROSIELSKI | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1805 | DOBSON | Jefferson County, PA | Gas Property | Dec 2023 |
| 1806 | DOEBLER UNIT | Lycoming County, PA | Gas Property | Sep 2024 |
| 1807 | DOG RUN HUNTING CLUB UNIT | Lycoming County, PA | Gas Property | Sep 2024 |
| 1808 | DOLLIE BECKMAN | Clearfield County, PA | Gas Property | Dec 2023 |
| 1809 | DON C FREDERICK | Venango County, PA | Oil Property | Dec 2023 |
| 1810 | DON FLAMENCO | Greene County, PA | Gas Property | Sep 2024 |
| 1811 | DON J DAVIS A | Lycoming County, PA | Gas Property | Sep 2024 |
| 1812 | DONAHEY HEIRS | Washington County, PA | Oil Property | Dec 2012 |
| 1813 | DONAHOO | Washington County, PA | Gas Property | Sep 2024 |
| 1814 | DONAHUE & WHITE 0 | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1815 | DONALD | Erie County, PA | Gas Property | Dec 2023 |
| 1816 | DONALD | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 1817 | DONALD BOGDANSKI ET AL | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 1818 | DONALD E & MABEL S MARTIN | Indiana County, PA | Gas Property | Dec 2023 |
| 1819 | DONALD G & LOIS JEAN WINDOWS | Armstrong County, PA | Gas Property | Dec 2023 |
| 1820 | DONALD H | Crawford County, PA | Gas Property | Dec 2023 |
| 1821 | DONALD MAUTHE | Clarion County, PA | Gas Property | Dec 2023 |
| 1822 | DONALD MCCRAY | Crawford County, PA | Gas Property | Dec 2023 |
| 1823 | DONALD P MCPHERSON | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 1824 | DONALD POWELL | Jefferson County, PA | Gas Property | Dec 2023 |
| 1825 | DONALD SHIREY | Clarion County, PA | Gas Property | Dec 2023 |
| 1826 | DONALD STREAMS | Indiana County, PA | Gas Property | Dec 2023 |
| 1827 | DONALD STROUP | Armstrong County, PA | Gas Property | Dec 2023 |
| 1828 | DONALD W DEITZ | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 1829 | DONALD W STREAMS | Indiana County, PA | Gas Property | Dec 2023 |
| 1830 | DONEY | Westmoreland County, PA | Oil & Gas Property | Sep 2024 |
| 1831 | DONLEY | Greene County, PA | Oil & Gas Property | Sep 2024 |
| 1832 | DONNA | Bradford County, PA | Gas Property | Sep 2024 |
| 1833 | DONNA CLARE DC | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1834 | DONOVAN OR STEWART RUN CLUB | Venango County, PA | Oil Property | Dec 2023 |
| 1835 | DORADO | Butler County, PA | Gas Property | Sep 2024 |
| 1836 | DORAZIO | Fayette County, PA | Gas Property | Dec 2023 |
| 1837 | DORN (02-180 | Tioga County, PA | Gas Property | Sep 2024 |
| 1838 | DOROTHEA TAYLOR T | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1839 | DOROTHY MCNAUGHTON | Indiana County, PA | Gas Property | Dec 2023 |
| 1840 | DORSCH UNIT | Butler County, PA | Oil & Gas Property | Sep 2024 |
| 1841 | DOSS | Bradford County, PA | Gas Property | Aug 2024 |
| 1842 | DOTTS | Clearfield County, PA | Gas Property | Dec 2023 |
| 1843 | DOTY | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 1844 | DOUGHERTY | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 1845 | DOUGHERTY HEIRS | Clarion County, PA | Gas Property | Dec 2023 |
| 1846 | DOUGLAS BIEDA | Westmoreland County, PA | Gas Property | Dec 2023 |
| 1847 | DOUGLAS E. BIEDA | Indiana County, PA | Gas Property | Dec 2023 |
| 1848 | DOUGLAS G MINICH | Clarion County, PA | Gas Property | Dec 2023 |
| 1849 | DOUGLAS HEIRS | Indiana County, PA | Gas Property | Dec 2023 |
| 1850 | DOUGLAS MINICH | Clarion County, PA | Gas Property | Dec 2023 |
| 1851 | DOUTHIT 00 | Jefferson County, PA | Gas Property | Dec 2023 |
| 1852 | DOVEN SPIKE | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 1853 | DOVERSPIKE | Jefferson County, PA | Gas Property | Dec 2023 |
| 1854 | DOVERSPIKE | Armstrong County, PA | Gas Property | Dec 2023 |
| 1855 | DOVERSPIKE EBERLE 00 | Armstrong County, PA | Gas Property | Dec 2023 |
| 1856 | DPH NE 1H | Wyoming County, PA | Gas Property | Sep 2024 |
| 1857 | DPH NW | Wyoming County, PA | Gas Property | Sep 2024 |
| 1858 | DPH SE | Wyoming County, PA | Gas Property | Sep 2024 |
| 1859 | DPH SW | Wyoming County, PA | Gas Property | Sep 2024 |
| 1860 | DR C M SMITH | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 1861 | DR02 WT5201 CP | Forest County, PA | Oil & Gas Property | Aug 2024 |
| 1862 | DRACO | Butler County, PA | Gas Property | Sep 2024 |
| 1863 | DRAGON CHAN | Greene County, PA | Gas Property | Sep 2024 |
| 1864 | DRAKE | Butler County, PA | Gas Property | Sep 2024 |
| 1865 | DRAKE | Bradford County, PA | Gas Property | Sep 2024 |
| 1866 | DRAKULIC | Allegheny County, PA | Gas Property | Dec 2023 |
| 1867 | DRANN | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1868 | DRAPE JAMES 18118 | Allegheny County, PA | Gas Property | Sep 2024 |
| 1869 | DRAYER | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1870 | DREHER A UNIT | Butler County, PA | Gas Property | Sep 2024 |
| 1871 | DREHER B UNIT | Butler County, PA | Oil & Gas Property | Sep 2024 |
| 1872 | DREW KIMMEL | Armstrong County, PA | Gas Property | Dec 2023 |
| 1873 | DRIFT RIDGE | Greene County, PA | Gas Property | Sep 2024 |
| 1874 | DRISCOLL | Bradford County, PA | Gas Property | Jan 2024 |
| 1875 | DROP | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 1876 | DROPP | Susquehanna County, PA | Gas Property | Sep 2024 |
| 1877 | DRUGGAN | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 1878 | DRUGMAND UNIT | Washington County, PA | Oil & Gas Property | Sep 2024 |
| 1879 | DRUSHEL UNIT | Butler County, PA | Oil & Gas Property | Sep 2024 |
| 1880 | DUANE | Bradford County, PA | Gas Property | Sep 2024 |
| 1881 | DUBOIS 3 | Clearfield County, PA | Oil & Gas Property | Dec 2023 |
| 1882 | DUCHESS 00 | Westmoreland County, PA | Gas Property | Dec 2023 |
| 1883 | DUFF | Westmoreland County, PA | Gas Property | Sep 2024 |
| 1884 | DUFFIELD | Bradford County, PA | Gas Property | Sep 2024 |
| 1885 | DUFFY ESTATE D | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 1886 | DUHRING | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1887 | DULCEY BRA | Bradford County, PA | Gas Property | Sep 2024 |
| 1888 | DUNCAN FORK | Washington County, PA | Oil & Gas Property | Dec 2023 |
| 1889 | DUNHAM | Bradford County, PA | Gas Property | Sep 2024 |
| 1890 | DUNLAP | Indiana County, PA | Gas Property | Dec 2023 |
| 1891 | DUNLAP-BARNETT UNIT | Clearfield County, PA | Gas Property | Dec 2023 |
| 1892 | DUNMIRE UNIT | Butler County, PA | Gas Property | Sep 2024 |
| 1893 | DUNN | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 1894 | DUNN | Warren County, PA | Oil & Gas Property | Dec 2022 |
| 1895 | DUNN CLINGERMAN UNIT | Washington County, PA | Oil & Gas Property | Sep 2024 |
| 1896 | DUNN JOHN UNIT | Washington County, PA | Oil & Gas Property | Sep 2024 |
| 1897 | DUNNY | Wyoming County, PA | Gas Property | Sep 2024 |
| 1898 | DUNSHIE D | Potter County, PA | Gas Property | Dec 2019 |
| 1899 | DUQUESNE LIGHT CO | Allegheny County, PA | Oil & Gas Property | Dec 2023 |
| 1900 | DURALIA 1 | Westmoreland County, PA | Gas Property | Sep 2024 |