| 13601 | Hy-Mark Oil & Gas, Inc. | | Oil Operator | Mar 1991 |
| 13602 | Hy-Tech, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2017 |
| 13603 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2026 |
| 13604 | Hyatt Exploration, Inc. | | Oil Operator | Jul 1995 |
| 13605 | Hybrid Operating, Incorporated | Carlsbad, CA 92009 | Oil & Gas Operator | Aug 2026 |
| 13606 | Hyco Oil Inc | Newcastle, WY 82701 | Oil & Gas Operator | Dec 2006 |
| 13607 | Hyde-Marrs, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1997 |
| 13608 | Hyder, Dean L. | Akron, NY 14001 | Gas Operator | Dec 2025 |
| 13609 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 13610 | Hydrocarbon Exploration, Inc. | | Oil & Gas Operator | Dec 2008 |
| 13611 | Hydrocarbon Generation, Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2025 |
| 13612 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |
| 13613 | Hydrocarbon Inv, Inc | | Oil Operator | Dec 2018 |
| 13614 | Hydrocarbon Lease Management LTD | Addison, TX 75001 | Oil & Gas Operator | Jul 2002 |
| 13615 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
| 13616 | Hydrocarbon MGMT., Inc. | | Oil & Gas Operator | Mar 1997 |
| 13617 | Hydrocarbon Operating, Inc. | Corpus Christ, TX 78401 | Oil & Gas Operator | Aug 2026 |
| 13618 | Hydrocarbon Resources LTD | Medina, OH 44256 | Oil & Gas Operator | Dec 2022 |
| 13619 | Hydrocarbon Technology Services | | Oil & Gas Operator | Dec 2000 |
| 13620 | Hydrofusion Energy, LLC | Cuero, TX 77954 | Oil Operator | Aug 2026 |
| 13621 | Hydrogeo, L.L.C. | Houston, TX 77074 | Oil & Gas Operator | Aug 2026 |
| 13622 | Hyer,Na & CJ Aldenhoven Trusts | Lipan, TX 76462 | Gas Operator | Oct 2017 |
| 13623 | Hyland Oil Corporation | | Oil & Gas Operator | Apr 1990 |
| 13624 | Hyman Muslow | | Oil Operator | Jun 1995 |
| 13625 | Hyndrex Resources | | Oil & Gas Operator | Feb 2016 |
| 13626 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 13627 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Jun 2026 |
| 13628 | Hyquest Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2015 |
| 13629 | I & F Oil And Farm | | Oil & Gas Operator | Dec 2009 |
| 13630 | I & L Development Co. | Dallas, TX 75219 | Oil & Gas Operator | Mar 1996 |
| 13631 | I & M Oil Production, LLC | Overland Park, KS 66209 | Oil & Gas Operator | Nov 2019 |
| 13632 | I D Oil Company Inc | Sperry, OK 74073-9417 | Oil Operator | Jan 2013 |
| 13633 | I T Enterprises Inc | Tulsa, OK 74170-0775 | Oil & Gas Operator | Mar 2011 |
| 13634 | I-Mac Petroleum Service Inc | Bixby, OK 74008-3778 | Oil & Gas Operator | Apr 2020 |
| 13635 | I-Tex Energy LLC | Luling, TX 78648 | Oil Operator | Aug 2026 |
| 13636 | I. H. Delatte | | Oil & Gas Operator | Jul 1991 |
| 13637 | I. J. Wilhite | | Oil Operator | Apr 2000 |
| 13638 | I. J. Wilhite & Star Drilling, Inc. | | Oil Operator | Sep 1973 |
| 13639 | I. W. McKnight,Production | | Oil Operator | Jan 1986 |
| 13640 | I.G. Petroleum, L.L.C | | Oil & Gas Operator | Dec 2018 |
| 13641 | I.T. Corporation | Arlington, TX 76016 | Oil & Gas Operator | Aug 2026 |
| 13642 | Ia Operating, Inc. | Edmond, OK 73003 | Oil Operator | Apr 2026 |
| 13643 | Iacobucci, Gary | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 13644 | Iacx Energy LLC | Dallas, TX 75244 | Gas Operator | May 2026 |
| 13645 | Iacx Production LLC | Roswell, NM 88201 | Oil & Gas Operator | May 2026 |
| 13646 | Iantha Resources LLC | Garnett, KS 66032 | Oil Operator | Dec 2019 |
| 13647 | Iantorno Brothers Oil | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2025 |
| 13648 | Ibarra Oil LLC | Blessing, TX 77419 | Oil & Gas Operator | Aug 2026 |
| 13649 | Ibc Petroleum, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Aug 2026 |
| 13650 | Iberia Operating Corporation | | Oil & Gas Operator | Jan 2003 |
| 13651 | Ibex Resources I, L.P. | Midland, TX 79701 | Oil & Gas Operator | Jul 1999 |
| 13652 | Ibex Resources Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2001 |
| 13653 | Ibex Resources, LLC | Austin, TX 78751 | Oil & Gas Operator | Jul 1999 |
| 13654 | Ica Energy Operating, L.L.C. | Odessa, TX 79760 | Oil & Gas Operator | Aug 2026 |
| 13655 | Icarus Operating Corporation | Spring, TX 77393 | Oil & Gas Operator | Aug 2026 |
| 13656 | Ice Brothers, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2024 |
| 13657 | Ice Well Services, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Aug 2026 |
| 13658 | Icg Tygart Valley, LLC | Grafton, WV 26354 | Oil & Gas Operator | Dec 2021 |
| 13659 | Ickert Enterprises | Olney, TX 76374 | Oil & Gas Operator | Aug 2026 |
| 13660 | Ickert, A. F. Jr. | Olney, TX 76374 | Oil & Gas Operator | Apr 1998 |
| 13661 | Icon Energy Company | Oklahoma City, OK 73156-1613 | Oil & Gas Operator | Apr 2026 |
| 13662 | Iconic Oil & Gas LLC | Dallas, TX 75229 | Gas Operator | Apr 2026 |
| 13663 | Icor Oil & Gas Of Okla LTD | Claremore, OK 74018-2132 | Oil & Gas Operator | Mar 2015 |
| 13664 | Ics Energy LLC | Stamford, TX 79553 | Oil & Gas Operator | Mar 2026 |
| 13665 | Idaho Oil Co., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Mar 2008 |
| 13666 | Idc Energy Corp | Warren, PA 16365-0792 | Oil & Gas Operator | Dec 2021 |
| 13667 | Idgas, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 1995 |
| 13668 | Iep Kansas Gas, LLC | Burlington, CO 80807 | Oil & Gas Operator | May 2026 |
| 13669 | Igas Corp | | Gas Operator | Dec 2000 |
| 13670 | Igleheart Warren | Edmond, OK 73034-8964 | Oil & Gas Operator | Jun 2016 |
| 13671 | Igwt, Inc. | Rose Hill, KS 67133 | Oil & Gas Operator | Apr 2026 |
| 13672 | Ijs Oil | Saint Jo, TX 76265 | Oil & Gas Operator | Aug 2026 |
| 13673 | Ikard, Alan | Electra, TX 76360 | Oil & Gas Operator | Aug 2026 |
| 13674 | Ike Energy LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Apr 2026 |
| 13675 | Ike Lovelady, Inc. | | Oil & Gas Operator | Jun 1985 |
| 13676 | Ike Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2026 |
| 13677 | Ikenberry Herman & Ikenberry | | Oil Operator | Jul 1999 |
| 13678 | Il Geer & Sons Partnership | Clarendon, PA 16313-4107 | Oil & Gas Operator | Dec 2013 |
| 13679 | Illini Development Company | | Oil & Gas Operator | Dec 2002 |
| 13680 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 13681 | Imagery Exploration, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Aug 2026 |
| 13682 | Imc Exploration Co. | | Oil & Gas Operator | Oct 1986 |
| 13683 | Immink Merle | | Oil & Gas Operator | Jun 2026 |
| 13684 | Imod Oil Prod LLC | | Oil & Gas Operator | Dec 2009 |
| 13685 | Impact Energy Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | May 2026 |
| 13686 | Impact Exploration Company | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 13687 | Imperator Investments LLC | Shawnee, KS 66217 | Oil Operator | Mar 2026 |
| 13688 | Imperial American Oil Corporation | Wichita, KS 67205 | Oil Operator | Dec 2009 |
| 13689 | Imperial Gas Resources LLC | Austin, TX 78701 | Oil & Gas Operator | Aug 2026 |
| 13690 | Imperial Occidental | | Oil & Gas Operator | Dec 2025 |
| 13691 | Imperial Oil & G | | Gas Operator | Jan 1990 |
| 13692 | Imperial Oil Com | | Oil & Gas Operator | Dec 1992 |
| 13693 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 13694 | Imperial Oil Of North Dakota, Inc. | | Oil & Gas Operator | Jul 2023 |
| 13695 | Imperial Oil Properties, Inc. | Wichita, KS 67201 | Oil & Gas Operator | Jun 2006 |
| 13696 | Imperial Operating Co., L.L.C. | Midland, TX 79701 | Oil Operator | Sep 2023 |
| 13697 | Imperial Petroleum, Inc. | Evansville, IN 47725 | Oil & Gas Operator | Jan 2005 |
| 13698 | Imperial-American Energy,Inc. | | Oil & Gas Operator | Jul 1978 |
| 13699 | Imperium Energy Inc | Atlanta, TX 75551 | Oil & Gas Operator | Apr 2026 |
| 13700 | Impetro Nonop LLC | | Oil Operator | Apr 2026 |