| 1801 | KETNER 1 | Barber County, KS | Gas Property | Nov 2023 |
| 1802 | KETO | Weld County, CO | Oil & Gas Property | Feb 2018 |
| 1803 | KETOLA | Ashtabula County, OH | Oil & Gas Property | Dec 2025 |
| 1804 | KETTERER | Stark County, OH | Oil & Gas Property | Dec 1995 |
| 1805 | KETTERER GEO | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 1806 | KETTL | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 1807 | KETTLE | Allen County, KS | Oil Property | Feb 2026 |
| 1808 | KETTLER | Los Angeles County, CA | Oil & Gas Property | May 2022 |
| 1809 | KETTUNEN | Ashtabula County, OH | Oil & Gas Property | Dec 1991 |
| 1810 | KETZNER | Barber County, KS | Oil Property | Mar 2026 |
| 1811 | KEUREN VAN | Irion County, TX | Oil & Gas Property | Mar 2026 |
| 1812 | KEVECH | Washington County, PA | Gas Property | Apr 2026 |
| 1813 | KEVIN | Stephens County, OK | Oil & Gas Property | Sep 1996 |
| 1814 | KEVIN 24-9H | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 1815 | KEVIN 2706 | Grant County, OK | Oil & Gas Property | May 2026 |
| 1816 | KEVIN 29-18-6 | Kingfisher County, OK | Oil & Gas Property | Apr 2026 |
| 1817 | KEVIN 34-28-12 1H | Alfalfa County, OK | Oil & Gas Property | Apr 2026 |
| 1818 | KEVIN BENZ 24-31H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1819 | KEVIN COM | Canadian County, OK | Oil & Gas Property | Apr 2026 |
| 1820 | KEVIN HUDSON | Licking County, OH | Oil Property | Dec 2021 |
| 1821 | KEVIN LC26-7 | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 1822 | KEVIN LYNN | Logan County, OK | Oil & Gas Property | Apr 2026 |
| 1823 | KEVIN WAYNE 10-3H | Williams County, ND | Oil & Gas Property | May 2026 |
| 1824 | KEVORKIAN | Washington County, OK | Oil Property | May 2022 |
| 1825 | KEWANEE | Eastland County, TX | Oil & Gas Property | Apr 2026 |
| 1826 | KEWANEE | Martin County, TX | Oil & Gas Property | Jul 2022 |
| 1827 | KEWANEE 1 | Uinta County, WY | Oil & Gas Property | May 2026 |
| 1828 | KEWANEE OIL CO | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 1829 | KEWISH | Lake County, OH | Oil & Gas Property | Dec 1994 |
| 1830 | KEY #2-25H24 | Pittsburg County, OK | Gas Property | Apr 2026 |
| 1831 | KEY 'B' | Reno County, KS | Oil Property | Mar 2026 |
| 1832 | KEY 1 | Wheeler County, TX | Oil & Gas Property | Apr 2026 |
| 1833 | KEY 1 | Nacogdoches County, TX | Oil & Gas Property | Mar 2026 |
| 1834 | KEY 3-25H24 | Pittsburg County, OK | Gas Property | Apr 2026 |
| 1835 | KEY 9 | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 1836 | KEY A | Throckmorton County, TX | Oil & Gas Property | Apr 2026 |
| 1837 | KEY BEATRICE GAS UNIT | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1838 | KEY DELORES | Scurry County, TX | Oil & Gas Property | Apr 2026 |
| 1839 | KEY DOLLY BELL | Gregg County, TX | Oil & Gas Property | Apr 2026 |
| 1840 | KEY E | Gray County, TX | Oil & Gas Property | Apr 2026 |
| 1841 | KEY G. A | Archer County, TX | Oil & Gas Property | Apr 2026 |
| 1842 | KEY GAS UNIT | Nacogdoches County, TX | Oil & Gas Property | Sep 2019 |
| 1843 | KEY GROVER | Burleson County, TX | Oil & Gas Property | Apr 2026 |
| 1844 | KEY HOBART | Gregg County, TX | Oil & Gas Property | Apr 2026 |
| 1845 | KEY ROCK MINING | Whitley County, KY | Oil & Gas Property | Nov 2022 |
| 1846 | KEY WEST TEN UNIT | Dawson County, TX | Oil & Gas Property | Apr 2026 |
| 1847 | KEY WEST WATERFLOOD UNIT | Dawson County, TX | Oil & Gas Property | Apr 2026 |
| 1848 | KEY, GREG | Monroe County, KY | Oil & Gas Property | Dec 2021 |
| 1849 | KEY, WILMA | Upton County, TX | Oil & Gas Property | Apr 2026 |
| 1850 | KEYDETS-A 47 4H | San Augustine County, TX | Gas Property | Apr 2026 |
| 1851 | KEYES | Creek County, OK | Oil & Gas Property | Apr 2026 |
| 1852 | KEYES | Warren County, PA | Gas Property | Dec 2025 |
| 1853 | KEYES | Seminole County, OK | Oil & Gas Property | Apr 2026 |
| 1854 | KEYES | Barber County, KS | Oil & Gas Property | Sep 2018 |
| 1855 | KEYES TRUST | Pratt County, KS | Oil Property | Mar 2026 |
| 1856 | KEYES USA 21-3H | McKenzie County, ND | Oil & Gas Property | May 2026 |
| 1857 | KEYHOLE 43 | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 1858 | KEYS | Eddy County, NM | Oil Property | Aug 2013 |
| 1859 | KEYS COM | San Juan County, NM | Oil & Gas Property | May 2026 |
| 1860 | KEYS GAS COM | San Juan County, NM | Oil & Gas Property | May 2026 |
| 1861 | KEYS GAS COM | San Juan County, NM | Oil & Gas Property | May 2026 |
| 1862 | KEYS HEIRS | Wilson County, KS | Oil Property | Mar 2026 |
| 1863 | KEYS PATSY | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 1864 | KEYS UNIT | Karnes County, TX | Oil & Gas Property | Apr 2026 |
| 1865 | KEYSER | Jack County, TX | Oil & Gas Property | Apr 2026 |
| 1866 | KEYSER | Young County, TX | Oil & Gas Property | Mar 2019 |
| 1867 | KEYSTONE | Marshall County, OK | Oil Property | Apr 2026 |
| 1868 | KEYSTONE | Midland County, TX | Oil & Gas Property | Apr 2026 |
| 1869 | KEYSTONE | La Salle County, TX | Oil & Gas Property | Apr 2026 |
| 1870 | KEYSTONE | Burleson County, TX | Oil & Gas Property | Mar 2026 |
| 1871 | KEYSTONE | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 1872 | KEYSTONE | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 1873 | KEYSTONE | Eddy County, NM | Oil & Gas Property | May 2026 |
| 1874 | KEYSTONE | Montgomery County, TX | Oil & Gas Property | Apr 2026 |
| 1875 | KEYSTONE | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 1876 | KEYSTONE | Meade County, KS | Oil & Gas Property | Mar 2026 |
| 1877 | KEYSTONE 12-15 UNIT | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 1878 | KEYSTONE 6 FEDERAL COM | Lea County, NM | Oil & Gas Property | May 2026 |
| 1879 | KEYSTONE CATTLE CO | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 1880 | KEYSTONE CATTLE CO | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 1881 | KEYSTONE FERNANDES | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 1882 | KEYSTONE HOLT UNIT | Winkler County, TX | Oil & Gas Property | Oct 2022 |
| 1883 | KEYSTONE SILURIAN UNIT | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 1884 | KEYSTONE STATE PARK | Westmoreland County, PA | Gas Property | Dec 2025 |
| 1885 | KEYSTONE TRUST 34-10-3 | Jefferson County, OH | Oil & Gas Property | Mar 2026 |
| 1886 | KEYSTONE UNIT MIRABELLI KEYSTONE 1H | Wyoming County, PA | Gas Property | Apr 2026 |
| 1887 | KEYSTONE UNLIMITED, LLC 19-1 | Kalamazoo County, MI | Oil & Gas Property | Apr 2026 |
| 1888 | KEZAR,R | Labette County, KS | Gas Property | Mar 2026 |
| 1889 | KGA 1 | Yuma County, CO | Gas Property | May 2026 |
| 1890 | KGA 2 | Yuma County, CO | Gas Property | May 2026 |
| 1891 | KGC 31-6H | Dunn County, ND | Oil & Gas Property | May 2026 |
| 1892 | KGFCU | Waller County, TX | Oil & Gas Property | Apr 2026 |
| 1893 | KGFU | Fort Bend County, TX | Oil & Gas Property | Apr 2026 |
| 1894 | KGFU 2 W7 | Waller County, TX | Oil & Gas Property | Jan 2026 |
| 1895 | KGS-A | Eddy County, NM | Oil & Gas Property | May 2026 |
| 1896 | KH SASSER | Atascosa County, TX | Oil & Gas Property | Apr 2026 |
| 1897 | KHA J | Webb County, TX | Oil & Gas Property | Apr 2026 |
| 1898 | KHA N | Webb County, TX | Oil & Gas Property | Apr 2026 |
| 1899 | KHA S | Webb County, TX | Oil & Gas Property | Apr 2026 |
| 1900 | KHAKI CAMPBELL | Weld County, CO | Oil & Gas Property | Apr 2026 |