| 12801 | Hassie Hunt Expl. Company | Dallas, TX 75201 | Oil & Gas Operator | Aug 2008 |
| 12802 | Hasso Energy LLC | | Oil & Gas Operator | Jan 2025 |
| 12803 | Hastings, J. W. Oil Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2010 |
| 12804 | Hat Creek Cattle Company, A General Partnership | Paola, KS 66071 | Oil Operator | Aug 2016 |
| 12805 | Hat Creek Energy LLC | Denver, CO 80209 | Oil & Gas Operator | Jun 2019 |
| 12806 | Hat Oil & Gas, Inc. | Slaton, TX 79364 | Oil & Gas Operator | Feb 2002 |
| 12807 | Hat-Top Production Co | Duncan, OK 73533 | Oil Operator | Apr 2011 |
| 12808 | Hatch, Jeffrey And Chelsea | Bemus Point, NY 14712 | Gas Operator | Dec 2023 |
| 12809 | Hatcher, Ray | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2002 |
| 12810 | Hatco Productions LTD | North Augusta, SC 29860 | Oil Operator | Dec 2024 |
| 12811 | Hathaway Company | | Oil & Gas Operator | Feb 2025 |
| 12812 | Hathaway LLC | | Oil & Gas Operator | Mar 2025 |
| 12813 | Hathaway Operators, Inc | | Oil & Gas Operator | Dec 2000 |
| 12814 | Hatler Oil Company, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2000 |
| 12815 | Haug Lawrence | Kimball, NE 69145 | Oil & Gas Operator | Jul 2007 |
| 12816 | Haught Energy Corporation | Smithville, WV 26178-7004 | Oil & Gas Operator | Dec 2021 |
| 12817 | Haught Harold | Hominy, OK 74035 | Oil Operator | Feb 2012 |
| 12818 | Haught, Glenn L. & Sons | | Oil & Gas Operator | Dec 1997 |
| 12819 | Haught, Inc. | Smithville, WV 26178 | Oil & Gas Operator | Nov 2021 |
| 12820 | Haul-Pac, Inc. | Hiawatha, KS 66434 | Oil Operator | Dec 2024 |
| 12821 | Haussler Farms Inc. | | Oil Operator | Dec 1992 |
| 12822 | Haven Oil & Gas | Hutchinson, KS 67504 | Oil & Gas Operator | Mar 2009 |
| 12823 | Havenor Operating Co | Roswell, NM 88201 | Oil & Gas Operator | Jun 2018 |
| 12824 | Havens Oil Company | Early, TX 76803 | Oil & Gas Operator | Feb 2025 |
| 12825 | Haverkamp, Floyd | Muenster, TX 76252 | Oil & Gas Operator | Oct 2001 |
| 12826 | Havins Energy | Burkburnett, TX 76354 | Oil & Gas Operator | May 2006 |
| 12827 | Havoco Inc | Newcastle, WY 82701 | Oil & Gas Operator | Aug 2005 |
| 12828 | Haw Corporation | | Oil Operator | Dec 1979 |
| 12829 | Hawk Exploration And Production | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Oct 1995 |
| 12830 | Hawk Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Aug 2003 |
| 12831 | Hawk Petroleum, L L C | San Diego, TX 78384 | Oil & Gas Operator | May 2025 |
| 12832 | Hawk Well Service | Borger, TX 79007 | Oil & Gas Operator | May 2025 |
| 12833 | Hawk, Lisa | Fredonia, NY 14063 | Gas Operator | Dec 2023 |
| 12834 | Hawk-Hill Operating Company, LLC | Plano, TX 75093 | Oil & Gas Operator | Jun 2009 |
| 12835 | Hawkbend LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |
| 12836 | Hawke Inc | Barbertib, OH 44203 | Oil & Gas Operator | Dec 2024 |
| 12837 | Hawkeye Drilling Co. | Waskom, TX 75692 | Oil & Gas Operator | Feb 2023 |
| 12838 | Hawkeye Oil | | Oil & Gas Operator | Jun 2007 |
| 12839 | Hawkeye Oil & Gas, Inc. | | Gas Operator | Jun 1995 |
| 12840 | Hawkeye Transmission Company | Dallas, TX 75244 | Oil & Gas Operator | Jun 2000 |
| 12841 | Hawkins & Hawkins | Council Hill, OK 74428 | Oil & Gas Operator | Jul 1996 |
| 12842 | Hawkins & Son Inc | Boynton, OK 74422 | Oil & Gas Operator | Aug 2019 |
| 12843 | Hawkins Energy Corporation | Austin, TX 78711 | Oil & Gas Operator | Apr 1997 |
| 12844 | Hawkins Oil & Ga | | Oil & Gas Operator | Jun 1995 |
| 12845 | Hawkins Oil & Gas Company | Richardson, TX 75080 | Oil & Gas Operator | May 2025 |
| 12846 | Hawkins Oil & Gas Inc | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2016 |
| 12847 | Hawkins Oil Of Michigan Inc | | Oil & Gas Operator | Aug 2003 |
| 12848 | Hawkins Oil, L.L.C. | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2025 |
| 12849 | Hawkins, B. O. | Aspermont, TX 79502 | Oil & Gas Operator | May 2025 |
| 12850 | Hawkins, Blanche | Clay City, KY 40312 | Oil Operator | Dec 2023 |
| 12851 | Hawkins, David A | | Oil Operator | Dec 2023 |
| 12852 | Hawkins, G. A. | Graham, TX 76450 | Oil & Gas Operator | Dec 2013 |
| 12853 | Hawkins, James F. | Tulsa, OK 74103 | Oil Operator | Dec 2019 |
| 12854 | Hawkins, Robert S. | Kevin, MT 59454 | Oil Operator | Jun 2018 |
| 12855 | Hawks Company | Casper, WY 82602 | Oil & Gas Operator | Apr 2007 |
| 12856 | Hawks Industries Inc | Casper, WY 82601 | Oil & Gas Operator | Jun 1993 |
| 12857 | Hawkwood Energy Operating, LLC | Houston, TX 77224 | Oil & Gas Operator | Apr 2022 |
| 12858 | Hawley & Desimon | Conrad, MT 59425 | Oil Operator | Mar 2025 |
| 12859 | Hawley Hydrocarbons, Merrill&Carol Hawley Dba | Great Falls, MT 59405 | Oil Operator | Feb 2025 |
| 12860 | Hawley Oil Company | Conrad, MT 59425-9802 | Oil Operator | Dec 2024 |
| 12861 | Hawn Bros. & Venus Oil Co. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Aug 1995 |
| 12862 | Hawn Brothers | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2003 |
| 12863 | Hawn Brothers Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jan 2003 |
| 12864 | Hawn Petroleum I | | Oil Operator | Jun 1989 |
| 12865 | Hawthorn Energy Partners, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | May 2025 |
| 12866 | Hawthorne Carl A | Mounds, OK 74047-4936 | Oil & Gas Operator | Apr 2015 |
| 12867 | Hawthorne Oil And Gas Corp. | Houston, TX 77227 | Oil & Gas Operator | Sep 1993 |
| 12868 | Hawthorne-Tipco | | Oil & Gas Operator | Oct 1978 |
| 12869 | Hay Creek Investments, L.L.C. | Santa Anna, TX 76878 | Oil Operator | Jul 2018 |
| 12870 | Hay Exploration, Inc | Ashland, KY 41102 | Oil & Gas Operator | Dec 2021 |
| 12871 | Hay Leonard | Rock Springs, WY 82901 | Oil & Gas Operator | Sep 1994 |
| 12872 | Hayabusa Energy USA, LLC | Pampa, TX 79065 | Oil & Gas Operator | May 2025 |
| 12873 | Hayden Harper Energy Ka, LLC | Charlotte, NC 28203-4173 | Oil & Gas Operator | Dec 2021 |
| 12874 | Hayden Operating | | Oil & Gas Operator | Jan 2025 |
| 12875 | Hayden, Mabel | Barkerton, KY 42717 | Oil Operator | Dec 2015 |
| 12876 | Haydens Oil And Gas LLC | Dover, OK 73734 | Oil & Gas Operator | Feb 2025 |
| 12877 | Hayes & Assoc Inc | | Oil & Gas Operator | Oct 1991 |
| 12878 | Hayes & Hudson | Bartlesville, OK 74003 | Oil & Gas Operator | Feb 2025 |
| 12879 | Hayes James Brent | Guysville, OH 45735-9496-9496 | Oil & Gas Operator | Dec 2024 |
| 12880 | Hayes Oil & Gas Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2005 |
| 12881 | Hayes Oil & Gas LLC | Attica, KS 67009 | Oil & Gas Operator | Jan 2025 |
| 12882 | Hayes, Marshall A. III | Chilton, TX 76632 | Oil & Gas Operator | May 2025 |
| 12883 | Haylan Oil Company | Midland, TX 79710 | Oil & Gas Operator | Jan 2000 |
| 12884 | Haylandia, LLC | Bloomfield, NY 14469 | Gas Operator | Dec 2023 |
| 12885 | Haynehead Operating Company, LLC | | Gas Operator | Feb 2016 |
| 12886 | Haynes & Shirley Production Co. | Iowa Park, TX 76367 | Oil & Gas Operator | May 2025 |
| 12887 | Haynes Jim L & Betty L | Haskell, OK 74436-8803 | Oil & Gas Operator | Dec 2013 |
| 12888 | Haynes Production Company, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Dec 2006 |
| 12889 | Haynie Drilling Co. Inc. | Corsicana, TX 75151 | Oil & Gas Operator | Dec 2011 |
| 12890 | Haynie Energy Services LLC | Wortham, TX 76693 | Oil Operator | May 2025 |
| 12891 | Haynie Robert L | | Gas Operator | Jan 2004 |
| 12892 | Hays & Anderson | | Oil & Gas Operator | Feb 2019 |
| 12893 | Hays & Boydston | Graham, TX 76450 | Oil & Gas Operator | Mar 1994 |
| 12894 | Hays & Croker Partnership | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 12895 | Hays Herb E & K S | Bartlesville, OK 74006 | Oil Operator | Feb 2025 |
| 12896 | Hays Oil Field S | | Oil Operator | Nov 1988 |
| 12897 | Hays Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2000 |
| 12898 | Hays Partnership | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 12899 | Hays Production LLC | Velma, OK 73491 | Oil & Gas Operator | Mar 2025 |
| 12900 | Hays Stanley L | Wynola, OK 74084 | Oil Operator | May 2022 |