| 12701 | Herbst Resources, Inc. | Mandeville, LA 70448 | Oil & Gas Operator | Aug 2003 |
| 12702 | Herd Producing Company, Inc. | Tyler, TX 75711 | Oil & Gas Operator | May 2024 |
| 12703 | Hereford, J. A. Industries, Inc. | Nacogdoches, TX 75961 | Oil & Gas Operator | May 2024 |
| 12704 | Herencia Operating LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | May 2024 |
| 12705 | Heritage Energy Company | | Oil & Gas Operator | Jun 2001 |
| 12706 | Heritage Energy Corporation | Waco, TX 76710 | Oil & Gas Operator | Sep 2004 |
| 12707 | Heritage Expl. & Prod. Co., Inc. | Stafford, TX 77497 | Oil & Gas Operator | Dec 2000 |
| 12708 | Heritage Oil Company | Norman, OK 73070 | Oil & Gas Operator | Jul 2008 |
| 12709 | Heritage Oil L.L.C. | Hays, KS 67601 | Oil Operator | Jan 2024 |
| 12710 | Heritage Operating Co., Inc. The | Stafford, TX 77497 | Oil & Gas Operator | May 1997 |
| 12711 | Heritage Petroleum Corporation | Cleburne, TX 76033 | Oil & Gas Operator | May 2024 |
| 12712 | Heritage Petroleum, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | May 2024 |
| 12713 | Heritage Resources, Inc. | Dallas, TX 75219 | Oil & Gas Operator | Feb 2014 |
| 12714 | Heritage Standard Corporation | Dallas, TX 75206 | Oil & Gas Operator | May 2024 |
| 12715 | Herley Olive Holdings LLC | | Oil & Gas Operator | Mar 2024 |
| 12716 | Herley Petroleum | | Oil & Gas Operator | Dec 1997 |
| 12717 | Herley-Kelley LLC | | Oil & Gas Operator | Mar 2024 |
| 12718 | Herlihy, John D. | | Oil & Gas Operator | May 1997 |
| 12719 | Herlin Et Al | | Oil & Gas Operator | Mar 1985 |
| 12720 | Herlindah Gallegos | | Oil Operator | Dec 2007 |
| 12721 | Herman Fields | | Oil & Gas Operator | May 1989 |
| 12722 | Herman J Ledbetter | Abilene, TX 79606 | Oil & Gas Operator | Jul 1999 |
| 12723 | Herman Krug - Oil Operations | | Oil Operator | Dec 2023 |
| 12724 | Herman L Loeb | Lawrenceville, IL 62439 | Oil & Gas Operator | Jul 2009 |
| 12725 | Herman L. Loeb, LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Jan 2024 |
| 12726 | Herman Lang Oil And Gas Co. | | Oil & Gas Operator | Dec 1992 |
| 12727 | Herman V Wallis | Kerrville, TX 780281858 | Gas Operator | Feb 2003 |
| 12728 | Hermat Salt Water Disposal, Inc. | Corpus Chrsti, TX 78426 | Oil Operator | Aug 2012 |
| 12729 | Hermes, A. J. | Lindsay, TX 76250 | Oil & Gas Operator | Mar 2018 |
| 12730 | Hermreck Oil Com | | Oil & Gas Operator | Aug 1996 |
| 12731 | Hermreck Oil Company | | Oil Operator | Oct 2023 |
| 12732 | Herms, Walter | Luling, TX 78648 | Oil & Gas Operator | Sep 2002 |
| 12733 | Herod Oil And Gas, LLC | Ranger, TX 76470 | Oil Operator | May 2024 |
| 12734 | Herod, Bill | Ranger, TX 76470 | Oil & Gas Operator | Apr 2022 |
| 12735 | Heron Operating, LLC | | Oil & Gas Operator | Mar 2024 |
| 12736 | Herricks Oil Co. | San Angelo, TX 76906 | Oil & Gas Operator | Jan 2010 |
| 12737 | Herring Production Co | | Oil & Gas Operator | Mar 1992 |
| 12738 | Herring, Casey Oil Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Nov 2008 |
| 12739 | Herring, D Oil & Gas Co. | Santa Anna, TX 76878 | Oil & Gas Operator | May 2024 |
| 12740 | Herring, Ray | Graham, TX 76450 | Oil & Gas Operator | Jul 2014 |
| 12741 | Herrman & Ikenberry | Cushing, OK 74023-0247 | Oil & Gas Operator | Dec 2003 |
| 12742 | Herrmann Arnold | Chandler, OK 74834 | Oil & Gas Operator | Jul 2023 |
| 12743 | Herrmann Energy | Amarillo, TX 79159 | Oil & Gas Operator | May 2015 |
| 12744 | Herrmann J B Oil And Gas | Amarillo, TX 79159-0670 | Oil & Gas Operator | Feb 2015 |
| 12745 | Herrmann, J.B. | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2019 |
| 12746 | Herrmann, S. W. Oil & Gas | Amarillo, TX 79159 | Oil & Gas Operator | May 2024 |
| 12747 | Herschap Bros. | Bruni, TX 78344 | Oil & Gas Operator | May 2024 |
| 12748 | Hershey Oil | Pasadena, CA 91103 | Oil & Gas Operator | Dec 1988 |
| 12749 | Hershey Oil Corporation | Seminole, TX 79360 | Oil & Gas Operator | Jul 1992 |
| 12750 | Hertel Oil Company | | Oil Operator | Nov 2018 |
| 12751 | Hertel Oil Company LLC | Hays, KS 67601 | Oil Operator | Jan 2024 |
| 12752 | Herzfeld Fabricators Inc | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2017 |
| 12753 | Hess Bakken Investments II, LLC | | Oil & Gas Operator | Mar 2024 |
| 12754 | Hess Bros. DRLG. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 12755 | Hess Co2 Resources LLC | Seminole, TX 79360 | Gas Operator | Aug 2017 |
| 12756 | Hess Corporation | Houston, TX 77010 | Oil & Gas Operator | Aug 2017 |
| 12757 | Hess Corporation, A De Corp. | | Oil & Gas Operator | Oct 2006 |
| 12758 | Hess Ohio Developments LLC | Houston, TX 77010 | Oil & Gas Operator | Sep 2018 |
| 12759 | Hess Ohio Resources LLC | Houston, TX 77010 | Oil & Gas Operator | Jun 2014 |
| 12760 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Jan 2024 |
| 12761 | Hess Production | Quitaque, TX 79255 | Oil & Gas Operator | May 2024 |
| 12762 | Hess Seminole Assets LLC | Seminole, TX 79360 | Oil & Gas Operator | Aug 2017 |
| 12763 | Hess, Jay E. | Andover, NY 14806 | Oil & Gas Operator | Dec 2022 |
| 12764 | Hess, Jerry Operating Co. | Muenster, TX 76252 | Oil & Gas Operator | May 2024 |
| 12765 | Hesse Petroleum Co.,L.L.C. | Wichita, KS 67208 | Oil & Gas Operator | Jan 2024 |
| 12766 | Hessert Edward C | | Oil & Gas Operator | Sep 1993 |
| 12767 | Hessert Loc Inc | Carl Junction, MO 64834 | Oil Operator | Dec 2009 |
| 12768 | Hester Jr J C | Lawton, OK 73502-1887 | Oil & Gas Operator | Oct 1997 |
| 12769 | Hett Oil & Gas, LLC | Lincolnville, KS 66858 | Oil & Gas Operator | Jan 2024 |
| 12770 | Heuston Oil LLC | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 12771 | Hewitt Doug | Hominy, OK 74035 | Oil Operator | Aug 2023 |
| 12772 | Hewitt Energy Group, Inc. | Salt Lake City, UT 84111 | Oil & Gas Operator | Apr 2015 |
| 12773 | Hewitt Oil, LLC | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2022 |
| 12774 | Hewitt, Alan P. | Midland, TX 79702 | Oil & Gas Operator | Aug 1997 |
| 12775 | Hewitt, Robert J. | Victoria, TX 77901 | Oil & Gas Operator | Jun 2004 |
| 12776 | Hexadyne Energy Corp. | | Oil & Gas Operator | Dec 2013 |
| 12777 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | May 2024 |
| 12778 | Hexp Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | May 2024 |
| 12779 | Heydrick Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2024 |
| 12780 | Hez Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 12781 | HG Energy II Appalachia, LLC | | Oil & Gas Operator | Mar 2022 |
| 12782 | HG Energy LLC | Parkersburg, WV 26101 | Oil & Gas Operator | Dec 2021 |
| 12783 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jan 2024 |
| 12784 | HG Operating LLC | Plano, TX 75026 | Oil & Gas Operator | May 2024 |
| 12785 | HGH Energy, Inc. | | Oil & Gas Operator | Jun 2001 |
| 12786 | Hgi Corporation | Nada, TX 77460 | Oil & Gas Operator | Apr 2016 |
| 12787 | HGN Operating Co Inc | Abilene, TX 79604 | Oil & Gas Operator | Jul 2014 |
| 12788 | HGN Operating I, LLC | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 12789 | HHH & G Oil Co | Owasso, OK 74055 | Oil Operator | Jun 2020 |
| 12790 | HHL Development Inc | Garber, OK 73738-0478 | Oil & Gas Operator | Feb 2024 |
| 12791 | Hi - Mountain Energy Corporation | Odessa, TX 79762 | Oil & Gas Operator | May 2024 |
| 12792 | Hi Plains Hydrocarbons, Inc. | Sunray, TX 79086 | Oil & Gas Operator | Oct 2002 |
| 12793 | Hi Snyder/Snyder Oil & Gas Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2019 |
| 12794 | Hi-Kat Petroleum | | Oil Operator | Mar 1990 |
| 12795 | Hi-Kat Petroleum Company | Liberal, KS 67905-1261 | Oil & Gas Operator | May 2014 |
| 12796 | Hi-Mi Exploration, LLC | Alvaton, KY 42122 | Oil & Gas Operator | Dec 2022 |
| 12797 | Hi-Pro Production | Gillette, WY 82717 | Gas Operator | Nov 2003 |
| 12798 | Hiawatha Exploration Company | Oklahoma City, OK 73116-7326 | Oil & Gas Operator | Mar 2009 |
| 12799 | Hibbard Energy, LP | Whitehouse, TX 75791 | Oil & Gas Operator | May 2024 |
| 12800 | Hibbard-Frost-Smith | | Oil & Gas Operator | Apr 1990 |