| 13801 | Hyco Oil Inc | Newcastle, WY 82701 | Oil & Gas Operator | Dec 2006 |
| 13802 | Hyde-Marrs, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1997 |
| 13803 | Hyder, Dean L. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 13804 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 13805 | Hydrocarbon Exploration, Inc. | | Oil & Gas Operator | Dec 2008 |
| 13806 | Hydrocarbon Generation, Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2024 |
| 13807 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |
| 13808 | Hydrocarbon Inv, Inc | | Oil Operator | Dec 2018 |
| 13809 | Hydrocarbon Lease Management LTD | Addison, TX 75001 | Oil & Gas Operator | Jul 2002 |
| 13810 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
| 13811 | Hydrocarbon MGMT., Inc. | | Oil & Gas Operator | Mar 1997 |
| 13812 | Hydrocarbon Operating, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Nov 2025 |
| 13813 | Hydrocarbon Resources LTD | Medina, OH 44256 | Oil & Gas Operator | Dec 2022 |
| 13814 | Hydrocarbon Technology Services | | Oil & Gas Operator | Dec 2000 |
| 13815 | Hydrogeo, L.L.C. | Houston, TX 77074 | Oil & Gas Operator | Nov 2025 |
| 13816 | Hyer,Na & CJ Aldenhoven Trusts | Lipan, TX 76462 | Gas Operator | Oct 2017 |
| 13817 | Hyland Oil Corporation | | Oil & Gas Operator | Apr 1990 |
| 13818 | Hyman Muslow | | Oil Operator | Jun 1995 |
| 13819 | Hyndrex Resources | | Oil & Gas Operator | Feb 2016 |
| 13820 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 13821 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Nov 2025 |
| 13822 | Hyquest Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2015 |
| 13823 | I & F Oil And Farm | | Oil & Gas Operator | Dec 2009 |
| 13824 | I & L Development Co. | Dallas, TX 75219 | Oil & Gas Operator | Mar 1996 |
| 13825 | I & M Oil Production, LLC | Overland Park, KS 66209 | Oil & Gas Operator | Jun 2025 |
| 13826 | I C Gas Amcana Inc | Tulsa, OK 74103-3713 | Oil & Gas Operator | Apr 1996 |
| 13827 | I D Oil Company Inc | Sperry, OK 74073-9417 | Oil Operator | Jan 2013 |
| 13828 | I T Enterprises Inc | Tulsa, OK 74170-0775 | Oil & Gas Operator | Mar 2011 |
| 13829 | I-Mac Petroleum Service Inc | Bixby, OK 74008-3778 | Oil & Gas Operator | Apr 2020 |
| 13830 | I. H. Delatte | | Oil & Gas Operator | Jul 1991 |
| 13831 | I. J. Wilhite | | Oil Operator | Apr 2000 |
| 13832 | I. J. Wilhite & Star Drilling, Inc. | | Oil Operator | Sep 1973 |
| 13833 | I. W. McKnight,Production | | Oil Operator | Jan 1986 |
| 13834 | I.G. Petroleum, L.L.C | | Oil & Gas Operator | Dec 2018 |
| 13835 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Nov 2025 |
| 13836 | Ia Operating, Inc. | Edmond, OK 73003 | Oil Operator | Jun 2025 |
| 13837 | Iacobucci, Gary | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 13838 | Iacx Energy LLC | Dallas, TX 75244 | Gas Operator | Sep 2025 |
| 13839 | Iacx Production LLC | Roswell, NM 88201 | Oil & Gas Operator | Aug 2025 |
| 13840 | Iantha Resources LLC | Garnett, KS 66032 | Oil Operator | Dec 2019 |
| 13841 | Iantorno Brothers Oil | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2024 |
| 13842 | Ibc Petroleum, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Nov 2025 |
| 13843 | Iberia Operating Corporation | | Oil & Gas Operator | Jan 2003 |
| 13844 | Ibex Resources I, L.P. | Midland, TX 79701 | Oil & Gas Operator | Jul 1999 |
| 13845 | Ibex Resources Operating LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 13846 | Ibex Resources, LLC | Austin, TX 78751 | Oil & Gas Operator | Jul 1999 |
| 13847 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Nov 2025 |
| 13848 | Icarus Operating Corporation | Spring, TX 77393 | Oil & Gas Operator | Nov 2025 |
| 13849 | Ice Brothers, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2024 |
| 13850 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Nov 2025 |
| 13851 | Icg Tygart Valley, LLC | Grafton, WV 26354 | Oil & Gas Operator | Dec 2021 |
| 13852 | Ickert Enterprises | Olney, TX 76374 | Oil & Gas Operator | Nov 2025 |
| 13853 | Ickert, A. F. Jr. | Olney, TX 76374 | Oil & Gas Operator | Apr 1998 |
| 13854 | Icon Energy Company | Oklahoma City, OK 73156-1613 | Oil & Gas Operator | Jul 2025 |
| 13855 | Iconic Oil & Gas LLC | Dallas, TX 75229 | Gas Operator | Jun 2025 |
| 13856 | Icor Oil & Gas Of Okla LTD | Claremore, OK 74018-2132 | Oil & Gas Operator | Mar 2015 |
| 13857 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Nov 2025 |
| 13858 | Idaho Oil Co., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2008 |
| 13859 | Idc Energy Corp | Warren, PA 16365-0792 | Oil & Gas Operator | Dec 2021 |
| 13860 | Idgas, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 1995 |
| 13861 | Iep Kansas Gas, LLC | Burlington, CO 80807 | Oil & Gas Operator | Aug 2025 |
| 13862 | Igas Corp | Charlottesville, VA 22905-5246 | Gas Operator | Dec 2000 |
| 13863 | Igleheart Warren | Edmond, OK 73034-8964 | Oil & Gas Operator | Jun 2016 |
| 13864 | Igwt, Inc. | Rose Hill, KS 67133 | Oil & Gas Operator | Jun 2025 |
| 13865 | Ijs Oil | Saint Jo, TX 76265 | Oil & Gas Operator | Nov 2025 |
| 13866 | Ikard, Alan | Electra, TX 76360 | Oil & Gas Operator | Nov 2025 |
| 13867 | Ike Energy LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Aug 2025 |
| 13868 | Ike Lovelady, Inc. | | Oil & Gas Operator | Jun 1985 |
| 13869 | Ike Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Nov 2025 |
| 13870 | Ikenberry Herman & Ikenberry | | Oil Operator | Jul 1999 |
| 13871 | Iks Operating | Upton, WY 82703 | Oil & Gas Operator | Jul 2013 |
| 13872 | Il Geer & Sons Partnership | Clarendon, PA 16313-4107 | Oil & Gas Operator | Dec 2013 |
| 13873 | Illini Development Company | | Oil & Gas Operator | Dec 2002 |
| 13874 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 13875 | Imagery Exploration, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Nov 2025 |
| 13876 | Imc Exploration Co. | | Oil & Gas Operator | Oct 1986 |
| 13877 | Immink Merle | | Oil & Gas Operator | Sep 2025 |
| 13878 | Imod Oil Prod LLC | Pleasantville, PA 16341-0149 | Oil & Gas Operator | Dec 2009 |
| 13879 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Sep 2025 |
| 13880 | Impact Exploration & Production LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Sep 2025 |
| 13881 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 13882 | Imperator Investments LLC | Shawnee, KS 66217 | Oil Operator | Aug 2024 |
| 13883 | Imperial American Oil Corporation | Wichita, KS 67205 | Oil Operator | Dec 2009 |
| 13884 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | Nov 2025 |
| 13885 | Imperial Occidental | | Oil & Gas Operator | Aug 2025 |
| 13886 | Imperial Oil & G | | Gas Operator | Jan 1990 |
| 13887 | Imperial Oil Com | | Oil & Gas Operator | Dec 1992 |
| 13888 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 13889 | Imperial Oil Of North Dakota, Inc. | | Oil & Gas Operator | Jul 2023 |
| 13890 | Imperial Oil Properties, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Jun 2006 |
| 13891 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 13892 | Imperial Petroleum Inc | Evansville, IN 47725 | Oil & Gas Operator | Jan 2005 |
| 13893 | Imperial-American Energy,Inc. | | Oil & Gas Operator | Jul 1978 |
| 13894 | Imperium Energy Inc | Atlanta, TX 75551 | Oil & Gas Operator | Jul 2025 |
| 13895 | Impetro Nonop LLC | | Oil Operator | Jun 2025 |
| 13896 | Impetro Oil & Gas, LLC | San Antonio, TX 78258 | Oil & Gas Operator | Jun 2018 |
| 13897 | Impetro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2020 |
| 13898 | Impetro Resources LLC | | Oil & Gas Operator | Aug 2025 |
| 13899 | Ina Street Operations, Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Nov 2012 |
| 13900 | Inabnet Est., H. Inabnet, Agt. | | Gas Operator | Jul 2005 |