| 1801 | HARBISON | Washington County, PA | Gas Property | Mar 2026 |
| 1802 | HARBISON | Indiana County, PA | Gas Property | Dec 2025 |
| 1803 | HARBISON | Archer County, TX | Oil & Gas Property | Mar 2026 |
| 1804 | HARBISON | Noble County, OK | Oil & Gas Property | May 2014 |
| 1805 | HARBISON WALKER | Clinton County, PA | Gas Property | Dec 2025 |
| 1806 | HARBISON-FISCHER | Tarrant County, TX | Oil & Gas Property | Mar 2026 |
| 1807 | HARBISON-WALKER | Clearfield County, PA | Gas Property | Dec 2025 |
| 1808 | HARBISON-WALKER | Clearfield County, PA | Gas Property | Dec 2025 |
| 1809 | HARBOLD | Eddy County, NM | Oil & Gas Property | Mar 2026 |
| 1810 | HARBOLT(WINGER) FIELD UNIT | Cooke County, TX | Oil & Gas Property | Mar 2026 |
| 1811 | HARBORDT | Santa Barbara County, CA | Oil & Gas Property | Jan 2021 |
| 1812 | HARBOUR | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 1813 | HARBOUR | Hutchinson County, TX | Oil & Gas Property | Mar 2026 |
| 1814 | HARBOUR 5 | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 1815 | HARBOURTOWN FED | Duchesne County, UT | Oil & Gas Property | Mar 2013 |
| 1816 | HARCROW | Leon County, TX | Oil & Gas Property | Mar 2026 |
| 1817 | HARD AS NAILS AMD ST | Chaves County, NM | Gas Property | Mar 2026 |
| 1818 | HARD DEAL | San Juan County, NM | Gas Property | Sep 2019 |
| 1819 | HARD KNOX 0304 | Garvin County, OK | Oil & Gas Property | Mar 2026 |
| 1820 | HARD ROCK | Cass County, TX | Oil & Gas Property | Mar 2026 |
| 1821 | HARDAGE | McClain County, OK | Oil & Gas Property | Oct 2020 |
| 1822 | HARDAGE & WILSON | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 1823 | HARDAWAY | Webster Parish, LA | Oil Property | Jan 2025 |
| 1824 | HARDAWAY | Adams County, CO | Oil Property | Dec 1999 |
| 1825 | HARDBARGER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 1826 | HARDBARGER | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 1827 | HARDBERGER | Gaines County, TX | Oil & Gas Property | Feb 2026 |
| 1828 | HARDCASTLE | Allen County, KY | Oil Property | Dec 2024 |
| 1829 | HARDCASTLE | Jackson County, MI | Oil & Gas Property | Apr 2026 |
| 1830 | HARDCASTLE | Johnson County, TX | Oil & Gas Property | Feb 2026 |
| 1831 | HARDCASTLE | Oklahoma County, OK | Oil Property | Mar 2026 |
| 1832 | HARDCASTLE STATE 27-34-39 | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 1833 | HARDEE | Mitchell County, TX | Oil & Gas Property | Mar 2026 |
| 1834 | HARDEMAN | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 1835 | HARDEMAN | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 1836 | HARDEMAN | Lee County, TX | Oil & Gas Property | Jan 2026 |
| 1837 | HARDEMAN DOROTHY JEAN | Denton County, TX | Gas Property | Mar 2026 |
| 1838 | HARDEMAN-HARDEMAN (SA) A 1H | Denton County, TX | Gas Property | Mar 2026 |
| 1839 | HARDEMAN-TURNER UNIT | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 1840 | HARDEN | Alfalfa County, OK | Oil & Gas Property | Mar 2026 |
| 1841 | HARDEN | Greene County, PA | Gas Property | Mar 2026 |
| 1842 | HARDEN | Hughes County, OK | Oil & Gas Property | Mar 2026 |
| 1843 | HARDEN | Hockley County, TX | Oil & Gas Property | Mar 2026 |
| 1844 | HARDEN | Roger Mills County, OK | Oil & Gas Property | Mar 2026 |
| 1845 | HARDEN | Clark County, KS | Oil & Gas Property | Jun 2024 |
| 1846 | HARDEN FARMS ROG230H | Greene County, PA | Gas Property | Mar 2026 |
| 1847 | HARDER | Chase County, KS | Gas Property | Aug 2021 |
| 1848 | HARDER | Glacier County, MT | Gas Property | Aug 2013 |
| 1849 | HARDER | Allegany County, NY | Oil Property | Dec 2022 |
| 1850 | HARDER BROUSSARD UNIT | Jefferson County, TX | Oil & Gas Property | Feb 2026 |
| 1851 | HARDER L | Allegany County, NY | Gas Property | Dec 2000 |
| 1852 | HARDESTY | Sheridan County, KS | Oil Property | Jan 2008 |
| 1853 | HARDESTY | Red Willow County, NE | Oil Property | Dec 2025 |
| 1854 | HARDESTY | Sumner County, KS | Oil Property | Feb 2026 |
| 1855 | HARDESTY | Weld County, CO | Oil & Gas Property | Mar 2018 |
| 1856 | HARDESTY | Grady County, OK | Oil & Gas Property | Mar 2026 |
| 1857 | HARDESTY | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 1858 | HARDESTY | Neosho County, KS | Oil Property | Apr 1987 |
| 1859 | HARDESTY A-HOOKS 4 USW | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 1860 | HARDESTY UNIT A | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 1861 | HARDGRAVE | Logan County, AR | Gas Property | Jun 2024 |
| 1862 | HARDGRAVE, BEN | Johnson County, AR | Gas Property | Jun 2024 |
| 1863 | HARDIE | San Juan County, NM | Oil & Gas Property | Apr 2026 |
| 1864 | HARDIE | San Juan County, NM | Oil & Gas Property | Apr 2026 |
| 1865 | HARDIE | Greene County, PA | Oil & Gas Property | Mar 2026 |
| 1866 | HARDIN | Le Flore County, OK | Gas Property | Mar 2026 |
| 1867 | HARDIN | Jack County, TX | Oil & Gas Property | Mar 2026 |
| 1868 | HARDIN | Claiborne Parish, LA | Oil & Gas Property | May 2012 |
| 1869 | HARDIN | Martin County, TX | Oil & Gas Property | Mar 2023 |
| 1870 | HARDIN | Hemphill County, TX | Oil & Gas Property | Mar 2026 |
| 1871 | HARDIN | Pottawatomie County, OK | Oil & Gas Property | Jul 2019 |
| 1872 | HARDIN | Wilson County, KS | Oil & Gas Property | Sep 2023 |
| 1873 | HARDIN | Wilson County, TX | Oil & Gas Property | Feb 2026 |
| 1874 | HARDIN | Young County, TX | Oil & Gas Property | Mar 2026 |
| 1875 | HARDIN | Panola County, TX | Oil & Gas Property | Jan 2026 |
| 1876 | HARDIN | Martin County, KY | Gas Property | Dec 2024 |
| 1877 | HARDIN | Wheeler County, TX | Oil & Gas Property | Mar 2026 |
| 1878 | HARDIN | Martin County, TX | Oil & Gas Property | Feb 2025 |
| 1879 | HARDIN | Carter County, OK | Oil & Gas Property | Mar 2026 |
| 1880 | HARDIN | Frio County, TX | Oil & Gas Property | Feb 2023 |
| 1881 | HARDIN | Kay County, OK | Oil Property | Feb 2026 |
| 1882 | HARDIN | Wagoner County, OK | Gas Property | Sep 2008 |
| 1883 | HARDIN | Lea County, NM | Oil & Gas Property | Dec 2001 |
| 1884 | HARDIN 2212 | Major County, OK | Oil & Gas Property | Mar 2026 |
| 1885 | HARDIN COUNTY O | Hardin County, TX | Oil & Gas Property | Mar 2026 |
| 1886 | HARDIN E. E | Wichita County, TX | Oil & Gas Property | Mar 2026 |
| 1887 | HARDIN FAMILY, LLC | Barbour County, WV | Oil & Gas Property | Dec 2021 |
| 1888 | HARDIN, CATHERINE | Pike County, KY | Oil & Gas Property | Dec 2024 |
| 1889 | HARDIN, D | Clinton County, KY | Oil Property | Dec 2009 |
| 1890 | HARDIN, JOHN F | Martin County, KY | Gas Property | Dec 2024 |
| 1891 | HARDIN, LARRY | Monroe County, KY | Oil Property | Dec 2011 |
| 1892 | HARDIN, T J | Martin County, KY | Oil & Gas Property | Dec 2024 |
| 1893 | HARDIN-JOHNSTON-STARNES | Hutchinson County, TX | Oil & Gas Property | Mar 2026 |
| 1894 | HARDIN-RAYES | McMullen County, TX | Oil & Gas Property | Mar 2026 |
| 1895 | HARDIN-SIMMONS | Shelby County, TX | Oil & Gas Property | Dec 2025 |
| 1896 | HARDIN-SIMMONS CRE | Reeves County, TX | Oil & Gas Property | Aug 2019 |
| 1897 | HARDING | Latimer County, OK | Gas Property | Mar 2026 |
| 1898 | HARDING | Chautauqua County, NY | Oil & Gas Property | Dec 2024 |
| 1899 | HARDING | Carroll County, OH | Oil & Gas Property | Dec 2025 |
| 1900 | HARDING | Yuma County, CO | Gas Property | Apr 2026 |