| 1801 | Heat Can Oil, LLC | Chanute, KS 66720 | Oil Operator | Jun 2009 |
| 1802 | Heat Waves Hot Oil Service LLC | Denver, CO 80202 | Oil Operator | Jun 2011 |
| 1803 | Heath, Mark | Leoti, KS 67861 | Oil Operator | Nov 2009 |
| 1804 | Hedrick, Thomasine | Severy, KS 67137 | Oil Operator | May 2011 |
| 1805 | Heger J J & Asso | | Oil Operator | Jun 1983 |
| 1806 | Hegwald, Jacob L. | Humboldt, KS 66748 | Oil Operator | Nov 2019 |
| 1807 | Helberg Oil Comp | | Oil Operator | Mar 1995 |
| 1808 | Held By Producti | | Oil & Gas Operator | Feb 1995 |
| 1809 | Hellar Drilling | | Oil & Gas Operator | Jan 1994 |
| 1810 | Hellar Drilling Company, Inc. | Wichita, KS 67208 | Oil & Gas Operator | Jan 2009 |
| 1811 | Heller, Phillip & Charlene | Columbia, MO 65201 | Oil & Gas Operator | Jan 2024 |
| 1812 | Helm Energy Company | Tulsa, OK 74133 | Oil Operator | Dec 2023 |
| 1813 | Helmerich & Payn | | Oil & Gas Operator | Aug 1995 |
| 1814 | Helmerich & Payne, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2024 |
| 1815 | Helsel, Allan J | South Haven, KS 67140 | Oil Operator | Nov 2023 |
| 1816 | Hembree Oil Production, LLC | Great Bend, KS 67530 | Oil Operator | Jan 2024 |
| 1817 | Hembree Robert F | | Oil Operator | Dec 2009 |
| 1818 | Henderson, Chris | Pawhuska, OK 74056 | Oil Operator | Dec 2009 |
| 1819 | Hennessy Oil Com | | Oil Operator | Mar 1991 |
| 1820 | Hensley Oil Company LLC | Arkansas City, KS 67005 | Oil Operator | Dec 2023 |
| 1821 | Hensley, Cloide J. & Hazel M. | Arkansas City, KS 67005 | Oil Operator | Sep 2001 |
| 1822 | Heritage Oil L.L.C. | Hays, KS 67601 | Oil Operator | Jan 2024 |
| 1823 | Herman Krug - Oil Operations | | Oil Operator | Dec 2023 |
| 1824 | Herman L. Loeb, LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Jan 2024 |
| 1825 | Herman Lang Oil And Gas Co. | | Oil & Gas Operator | Dec 1992 |
| 1826 | Hermreck Oil Com | | Oil & Gas Operator | Aug 1996 |
| 1827 | Hermreck Oil Company | | Oil Operator | Oct 2023 |
| 1828 | Hertel Oil Company | | Oil Operator | Nov 2018 |
| 1829 | Hertel Oil Company LLC | Hays, KS 67601 | Oil Operator | Jan 2024 |
| 1830 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Jan 2024 |
| 1831 | Hesse Petroleum Co.,L.L.C. | Wichita, KS 67208 | Oil & Gas Operator | Jan 2024 |
| 1832 | Hessert Edward C | | Oil & Gas Operator | Sep 1993 |
| 1833 | Hessert Loc Inc | Carl Junction, MO 64834 | Oil Operator | Dec 2009 |
| 1834 | Hett Oil & Gas, LLC | Lincolnville, KS 66858 | Oil & Gas Operator | Jan 2024 |
| 1835 | Hewitt Energy Group, Inc. | Salt Lake City, UT 84111 | Oil & Gas Operator | Apr 2015 |
| 1836 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jan 2024 |
| 1837 | Hi-Kat Petroleum | | Oil Operator | Mar 1990 |
| 1838 | Hi-Kat Petroleum Company | Liberal, KS 67905-1261 | Oil & Gas Operator | May 2014 |
| 1839 | Hibernian Compan | | Oil & Gas Operator | Feb 1991 |
| 1840 | Hiebert & Wedel | | Oil & Gas Operator | May 1995 |
| 1841 | Hiebert, D. O. Lewis | McPherson, KS 67460 | Oil Operator | Feb 1999 |
| 1842 | Higginbottom Engineering, Inc. | Liberal, KS 67905 | Oil & Gas Operator | Jan 2024 |
| 1843 | Higgins Oil & Ga | | Oil Operator | Apr 1992 |
| 1844 | High Bluff Operating, LLC | Littleton, CO 80161 | Oil & Gas Operator | May 2018 |
| 1845 | High Plains Oil | | Oil Operator | Jun 1989 |
| 1846 | High Plains Production, LLC | Murray, KY 42071 | Oil & Gas Operator | Jan 2024 |
| 1847 | High Sierra Crude Oil& Marketing LLC | Ardmore, OK 73401 | Oil Operator | Nov 2013 |
| 1848 | Hill Oil And Gas Co., Inc. | Overland Park, KS 66213 | Oil Operator | Mar 2020 |
| 1849 | Hillary Oil Comp | | Oil & Gas Operator | Apr 1991 |
| 1850 | Hillenburg Oil C | | Oil Operator | Apr 1994 |
| 1851 | Hillenburg Oil Co., A General Partnership | Broken Arrow, OK 74011 | Oil Operator | Jan 2024 |
| 1852 | Hilliker Oil Com | | Oil Operator | Jul 1984 |
| 1853 | Hilliker Production | Indian Wells, CA 92210 | Oil & Gas Operator | Jul 2007 |
| 1854 | Hilltop Exploration, Inc. | Sedan, KS 67361 | Oil Operator | Jan 2000 |
| 1855 | Himco Oil & Gas, Inc. | Enid, OK 73702 | Oil & Gas Operator | Jan 2024 |
| 1856 | Hinkle Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 1857 | Hinkle Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Jan 1999 |
| 1858 | Hinks Petroleum Co., Inc. | Wichita, KS 67201 | Oil Operator | May 1999 |
| 1859 | Hirt Farms Incor | | Oil & Gas Operator | Apr 1994 |
| 1860 | Hizey Service & | | Oil Operator | Apr 1994 |
| 1861 | HJ, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Jan 2024 |
| 1862 | HKW Oil Company, Inc. | Bunker Hill, KS 67626 | Oil Operator | Dec 2009 |
| 1863 | HMN Partnership | Argonia, KS 67004 | Oil Operator | Nov 1993 |
| 1864 | Hodges & Hodges Oil Venture | Gallup, NM 87301 | Oil Operator | May 1999 |
| 1865 | Hodges Oil | | Oil Operator | Jan 2024 |
| 1866 | Hodges, Dennis D. And Peggy D. | Reading, KS 66868 | Oil Operator | Jan 2024 |
| 1867 | Hoehn Oil | Wellsville, KS 66092 | Oil Operator | Oct 1998 |
| 1868 | Hoehn Oil LLC | Wellsville, KS 66092 | Oil Operator | Jan 2024 |
| 1869 | Hoener Ross Inco | | Oil Operator | Dec 1991 |
| 1870 | Hoener, Ross | Iuka, KS 67066 | Oil & Gas Operator | Jan 2024 |
| 1871 | Hoepker, Larry | Humboldt, KS 66748 | Oil Operator | Dec 2023 |
| 1872 | Hoff Oil & Gas | | Oil Operator | May 2013 |
| 1873 | Hoffman Oil, Inc. | Claflin, KS 67525 | Oil Operator | Jan 2024 |
| 1874 | Hoffman Petroleu | | Oil Operator | Sep 1989 |
| 1875 | Hoffman Petroleum, Inc. | Littleton, CO 80120 | Oil Operator | Sep 1996 |
| 1876 | Hoffman Resources LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jan 2024 |
| 1877 | Hoffman, Brian | Claflin, KS 67525 | Oil Operator | Nov 2023 |
| 1878 | Hoffman, Myrle F. | Denver, CO 80202 | Oil Operator | Dec 1986 |
| 1879 | Hogoboom Al Oilf | | Oil Operator | Oct 1990 |
| 1880 | Holcomb Oil Comp | | Oil Operator | Sep 1991 |
| 1881 | Holland Assoc | | Oil Operator | Sep 1987 |
| 1882 | Holt IVan | | Oil Operator | Mar 1989 |
| 1883 | Holt IVan Leroy | | Oil & Gas Operator | Jan 1994 |
| 1884 | Holt Oil & Gas C | | Oil Operator | Sep 1984 |
| 1885 | Holt, Carol | Independence, KS 67301 | Oil Operator | Jan 2024 |
| 1886 | Holtom, Bill, A General Partnership | Saint Paul, KS 66771 | Oil Operator | Jan 2024 |
| 1887 | Holton Brothers | Canton, KS 67428 | Oil Operator | Apr 1990 |
| 1888 | Home-Stake Royalty Corp., The | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2014 |
| 1889 | Hon R J Oil & Ga | | Oil Operator | Nov 1990 |
| 1890 | Hondo Oil & Gas | Houston, TX 77042 | Oil & Gas Operator | Oct 1995 |
| 1891 | Honey Oil Co | Wichita, KS 67226 | Oil & Gas Operator | Mar 2009 |
| 1892 | Honey Well, LLC | Lenexa, KS 66219 | Oil Operator | Jan 2024 |
| 1893 | Hoover Noble C | | Oil Operator | Nov 1992 |
| 1894 | Hope Company, LLC | Longmont, CO 80502 | Gas Operator | Feb 2012 |
| 1895 | Hopewell Operating, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 1896 | Hoppe Oil & Gas | | Oil Operator | Nov 1992 |
| 1897 | Hoppe Oil & Gas Co., Inc. | Wichita, KS 67202 | Oil Operator | Jul 1998 |
| 1898 | Hopper Oil Co., Inc. | Winfield, KS 67156 | Oil Operator | Jan 2024 |
| 1899 | Hopper Oil Compa | | Oil Operator | Sep 1988 |
| 1900 | Horizon Oil & Ga | | Oil & Gas Operator | Jan 1992 |