| 12801 | Herman Riemer Gas Co | Sarver, PA 16055-8507 | Oil & Gas Operator | Dec 2016 |
| 12802 | Herman V Wallis | Kerrville, TX 780281858 | Gas Operator | Feb 2003 |
| 12803 | Hermat Salt Water Disposal, Inc. | Corpus Chrsti, TX 78426 | Oil Operator | Aug 2012 |
| 12804 | Hermes, A. J. | Lindsay, TX 76250 | Oil & Gas Operator | Mar 2018 |
| 12805 | Hermreck Oil Com | | Oil & Gas Operator | Aug 1996 |
| 12806 | Hermreck Oil Company | | Oil Operator | Oct 2025 |
| 12807 | Herms, Walter | Luling, TX 78648 | Oil & Gas Operator | Sep 2002 |
| 12808 | Herod, Bill | Ranger, TX 76470 | Oil & Gas Operator | Apr 2022 |
| 12809 | Heron Operating, LLC | | Oil & Gas Operator | Dec 2025 |
| 12810 | Herricks Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Jan 2010 |
| 12811 | Herring Production Co | | Oil & Gas Operator | Mar 1992 |
| 12812 | Herring, Casey Oil Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Nov 2008 |
| 12813 | Herring, D Oil & Gas Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Sep 2026 |
| 12814 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 12815 | Herrman & Ikenberry | Cushing, OK 74023-0247 | Oil & Gas Operator | Dec 2003 |
| 12816 | Herrmann Arnold | Chandler, OK 74834 | Oil & Gas Operator | Sep 2024 |
| 12817 | Herrmann Energy | Amarillo, TX 79159 | Oil & Gas Operator | May 2015 |
| 12818 | Herrmann J B Oil And Gas | Amarillo, TX 79159-0670 | Oil & Gas Operator | Feb 2015 |
| 12819 | Herrmann, J.B. | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2019 |
| 12820 | Herrmann, S. W. Oil & Gas | Amarillo, TX 79159 | Oil & Gas Operator | Sep 2026 |
| 12821 | Herschap Bros. | Bruni, TX 78344 | Oil & Gas Operator | Sep 2026 |
| 12822 | Hershey Oil | Pasadena, CA 91103 | Oil & Gas Operator | Dec 1988 |
| 12823 | Hershey Oil Corporation | | Oil & Gas Operator | Jul 1992 |
| 12824 | Hertel Oil Company | | Oil Operator | Jan 2026 |
| 12825 | Hertel Oil Company LLC | Hays, KS 67601 | Oil Operator | May 2026 |
| 12826 | Herv Oil, LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jul 2026 |
| 12827 | Herzfeld Fabricators Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2017 |
| 12828 | Hesperus Energy II LLC | | Oil Operator | Jun 2026 |
| 12829 | Hesperus Energy LLC | | Oil Operator | Dec 2025 |
| 12830 | Hess Bakken Investments II, LLC | | Oil & Gas Operator | Jun 2026 |
| 12831 | Hess Bros. DRLG. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 12832 | Hess Co2 Resources LLC | Seminole, TX 79360 | Gas Operator | Aug 2017 |
| 12833 | Hess Corporation | Houston, TX 77010 | Oil & Gas Operator | Aug 2017 |
| 12834 | Hess Corporation, A De Corp. | | Oil & Gas Operator | Oct 2006 |
| 12835 | Hess Ohio Developments LLC | Houston, TX 77010 | Oil & Gas Operator | Sep 2018 |
| 12836 | Hess Ohio Resources LLC | Houston, TX 77010 | Oil & Gas Operator | Jun 2014 |
| 12837 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | May 2026 |
| 12838 | Hess Production | Quitaque, TX 79255 | Oil & Gas Operator | Sep 2026 |
| 12839 | Hess Seminole Assets LLC | Seminole, TX 79360 | Oil & Gas Operator | Aug 2017 |
| 12840 | Hess, Jay E. | Andover, NY 14806 | Oil & Gas Operator | Dec 2025 |
| 12841 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | Sep 2026 |
| 12842 | Hesse Petroleum Co.,L.L.C. | Wichita, KS 67208 | Oil & Gas Operator | May 2026 |
| 12843 | Hessert Edward C | | Oil & Gas Operator | Sep 1993 |
| 12844 | Hessert Loc Inc | Carl Junction, MO 64834 | Oil Operator | Dec 2009 |
| 12845 | Hester Jr J C | Lawton, OK 73502-1887 | Oil & Gas Operator | Oct 1997 |
| 12846 | Heston Oil Company | Tulsa, OK 74108 | Oil & Gas Operator | Mar 2005 |
| 12847 | Hett Oil & Gas, LLC | Lincolnville, KS 66858 | Oil & Gas Operator | Apr 2026 |
| 12848 | Heuston Oil LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 12849 | Hewitt Energy Group Inc | Salt Lake City, UT 84111 | Oil & Gas Operator | Apr 2015 |
| 12850 | Hewitt Oil, LLC | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2025 |
| 12851 | Hewitt, Alan P. | Midland, TX 79702 | Oil & Gas Operator | Aug 1997 |
| 12852 | Hewitt, Douglas R | | Oil Operator | May 2026 |
| 12853 | Hewitt, Robert J. | Victoria, TX 77901 | Oil & Gas Operator | Jun 2004 |
| 12854 | Hexadyne Energy Corp. | | Oil & Gas Operator | Dec 2013 |
| 12855 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Sep 2026 |
| 12856 | Hexp Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Sep 2026 |
| 12857 | Heydrick Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 12858 | Hez Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 12859 | HG Energy II Appalachia, LLC | Parkersburg, WV 26101 | Oil & Gas Operator | Mar 2022 |
| 12860 | HG Energy LLC | Parkersburg, WV 26101 | Oil & Gas Operator | Dec 2021 |
| 12861 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | May 2026 |
| 12862 | HG Operating LLC | Plano, TX 75026 | Oil & Gas Operator | Sep 2026 |
| 12863 | HGB Oil Company | Denver, CO 80224 | Oil Operator | Mar 2006 |
| 12864 | HGH Energy, Inc. | | Oil & Gas Operator | Jun 2001 |
| 12865 | Hgi Corporation | Nada, TX 77460 | Oil & Gas Operator | Apr 2016 |
| 12866 | HGN Operating Co. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2014 |
| 12867 | HGN Operating I, LLC | Abilene, TX 79604 | Oil & Gas Operator | Sep 2026 |
| 12868 | HHH & G Oil Co | Owasso, OK 74055 | Oil Operator | Jun 2020 |
| 12869 | HHL Development Inc | Garber, OK 73738 | Oil & Gas Operator | Jun 2026 |
| 12870 | Hi - Mountain Energy Corporation | Odessa, TX 79762 | Oil & Gas Operator | Sep 2026 |
| 12871 | Hi Plains Hydrocarbons, Inc. | Sunray, TX 79086 | Oil & Gas Operator | Oct 2002 |
| 12872 | Hi Snyder/Snyder Oil & Gas Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2019 |
| 12873 | Hi-Kat Petroleum | | Oil Operator | Mar 1990 |
| 12874 | Hi-Kat Petroleum Company | Liberal, KS 67905-1261 | Oil & Gas Operator | May 2014 |
| 12875 | Hi-Mi Exploration, LLC | Alvaton, KY 42122 | Oil & Gas Operator | Dec 2022 |
| 12876 | Hi-Pro Production | Gillette, WY 82717 | Gas Operator | Nov 2003 |
| 12877 | Hiawatha Exploration Company | Oklahoma City, OK 73116-7326 | Oil & Gas Operator | Mar 2009 |
| 12878 | Hibbard Energy, LP | Whitehouse, TX 75791 | Oil & Gas Operator | Sep 2026 |
| 12879 | Hibbard-Frost-Smith | | Oil & Gas Operator | Apr 1990 |
| 12880 | Hibbert R E Estate Of | Houston, TX 77002-3211 | Oil & Gas Operator | Apr 2015 |
| 12881 | Hibernia Resources III, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2023 |
| 12882 | Hibernia Resources IV, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2026 |
| 12883 | Hibernia Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Jun 2014 |
| 12884 | Hibernian Compan | | Oil & Gas Operator | Feb 1991 |
| 12885 | Hickey, Jeff | Whitesville, KY 42378 | Oil Operator | Dec 2023 |
| 12886 | Hickey, Kevin F. & Mary | Akron, NY 14001 | Gas Operator | Dec 2025 |
| 12887 | Hickman & Ickert | Olney, TX 76374 | Oil & Gas Operator | Feb 2002 |
| 12888 | Hickman, Johnny | | Oil & Gas Operator | Oct 2011 |
| 12889 | Hickman-Jordan-Halligan Ranches | Blackwell, TX 79506 | Oil & Gas Operator | Feb 1998 |
| 12890 | Hickory Petroleum Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2013 |
| 12891 | Hickory-National Co. | | Oil Operator | Dec 1986 |
| 12892 | Hickox Oil Texas Company, Inc. | Mobile, AL 36689 | Oil & Gas Operator | Feb 1996 |
| 12893 | Hickox, I. N. | | Oil Operator | Nov 1967 |
| 12894 | Hicks Exploration, LLC | Dover, OK 73734 | Gas Operator | Oct 2024 |
| 12895 | Hicks Oil & Gas Inc | Farmington, NM 87499 | Oil & Gas Operator | Oct 2012 |
| 12896 | Hicks Production Co. | | Oil & Gas Operator | Apr 1991 |
| 12897 | Hicon Gas Producers, Inc. | New York, NY 10110 | Oil & Gas Operator | Oct 1999 |
| 12898 | Hidalgo Oil & Exploration Corp. | New Braunfels, TX 78131 | Oil & Gas Operator | Sep 2026 |
| 12899 | Hidden Oaks Oil Company, LLC | New Braunfels, TX 78132 | Oil Operator | Sep 2026 |
| 12900 | Hiebert & Wedel | | Oil & Gas Operator | May 1995 |