| 9801 | Ernie L Hegwer Ind | Hobbs, NM 88240 | Oil & Gas Operator | Sep 2002 |
| 9802 | Ernmar Investments, Inc. | Edmond, OK 73083 | Oil & Gas Operator | Apr 2025 |
| 9803 | Ernst & Steinle | | Oil Operator | Oct 1991 |
| 9804 | Ernst Petroleum Company Inc | Arlington, VA 22201 | Oil & Gas Operator | Aug 2013 |
| 9805 | Eroc Gathering Company, LP | | Oil Operator | Jul 2014 |
| 9806 | Eros Operating LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Apr 2025 |
| 9807 | Erp Environmental Fund, Inc. | | Gas Operator | Dec 2018 |
| 9808 | Ers Operating Company LLC | Bothell, WA 98012 | Oil & Gas Operator | Jun 2016 |
| 9809 | Ers Resources, LLC | Irving, TX 75038 | Oil Operator | Sep 2010 |
| 9810 | Erskine Energy, LLC | H SPG NTL PK, AR 71909 | Oil & Gas Operator | Apr 2025 |
| 9811 | Erskine Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2007 |
| 9812 | Erso, Inc. | Houston, TX 77002 | Gas Operator | Mar 1995 |
| 9813 | Erson Royalty Company, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Feb 2006 |
| 9814 | Erwin Oil & Gas LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Apr 2019 |
| 9815 | Erwin Oil & Gas LTD Co | Hobbs, NM 882411506 | Oil & Gas Operator | Apr 2003 |
| 9816 | Erwin Oil Company | Jacksboro, TX 76458 | Oil Operator | Apr 2025 |
| 9817 | Erwin Operating | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 9818 | Erwin W. Saye | | Oil & Gas Operator | Apr 1979 |
| 9819 | Erwin, James D. | Dallas, TX 75225 | Oil & Gas Operator | Nov 1993 |
| 9820 | Escalera Resources Co | Casper, WY 82602 | Oil & Gas Operator | May 2018 |
| 9821 | Escambia Operating Co. LLC | Gulfport, MS 39501 | Oil & Gas Operator | Dec 2024 |
| 9822 | Escher Corporation | Oklahoma City, OK 73120 | Oil & Gas Operator | Feb 2025 |
| 9823 | Esco Exploration, Inc | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 9824 | Esco Oil & Gas, Inc. | | Oil & Gas Operator | Nov 2009 |
| 9825 | Esco Oil Operating Company LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 9826 | Escoba Royalty Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2005 |
| 9827 | Escondido Bay Corporation | Dallas, TX 75202 | Oil Operator | Apr 2025 |
| 9828 | Escondido Operating, Inc. | Carrollton, TX 75011 | Oil & Gas Operator | Jun 2013 |
| 9829 | Escondido Petroleum Company, Inc | Houston, TX 77063 | Oil & Gas Operator | Apr 2025 |
| 9830 | Escondido Resources GP, LLC | Midland, TX 79708 | Oil & Gas Operator | Dec 2007 |
| 9831 | Escondido Resources II, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 9832 | Escondido Resources Oper Co, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 9833 | Escott Oil Inc | Nowata, OK 74048 | Oil & Gas Operator | Feb 2000 |
| 9834 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Apr 2025 |
| 9835 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Jan 2025 |
| 9836 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
| 9837 | Esg Resources LLC | Dallas, TX 75231 | Oil & Gas Operator | Apr 2025 |
| 9838 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 9839 | Eskridge Oil & Supply | Tulsa, OK 74105 | Oil Operator | Aug 2014 |
| 9840 | Eskridge Production Company | Tulsa, OK 74112-1428 | Oil Operator | Sep 2019 |
| 9841 | Eslick Nancy Sue | Bristow, OK 74010-3873 | Oil Operator | Aug 2013 |
| 9842 | Esna Operating Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1994 |
| 9843 | Esoterra, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Apr 2025 |
| 9844 | Esp Development, Inc. | Salina, KS 67401 | Oil Operator | Dec 2024 |
| 9845 | Esp Energy, LLC | Nocona, TX 76255 | Oil Operator | Apr 2025 |
| 9846 | Espada Operating LLC | San Antonio, TX 78209 | Oil Operator | Apr 2025 |
| 9847 | Esper Production Co | Arlington, TX 76011-2427 | Oil & Gas Operator | Apr 2015 |
| 9848 | Esperanza Energy Corp. | Prosper, TX 75078 | Oil & Gas Operator | Mar 2015 |
| 9849 | Esquire Oil And Gas LLC | | Oil & Gas Operator | Jan 2011 |
| 9850 | Essex Corporation | | Oil Operator | Jan 1983 |
| 9851 | Essex Corporation Of Louisiana | | Oil Operator | Dec 1997 |
| 9852 | Essex Energy Inc | Yukon, OK 73099-5126 | Oil & Gas Operator | Apr 2014 |
| 9853 | Essex Resources, LLC | Coffeyville, KS 67337 | Oil Operator | Oct 2024 |
| 9854 | Essman Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2019 |
| 9855 | Est Of WM G Helis (A Partnership) | | Oil & Gas Operator | Dec 2009 |
| 9856 | Est. Of H. L. Hunt | | Oil & Gas Operator | Jun 1983 |
| 9857 | Estacado Energy, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 1999 |
| 9858 | Estacado Energy, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2025 |
| 9859 | Estancia Oil & Gas, LLC | Austin, TX 78716 | Oil & Gas Operator | Apr 2025 |
| 9860 | Estate Of C.B. Christie Jr | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 9861 | Estate Of Crawford Oil & Gas, Inc. | Midland, TX 79705 | Oil & Gas Operator | Aug 2006 |
| 9862 | Estate Of Doris Jean Davis Carr | Buckhannon, WV 26201 | Gas Operator | Dec 2021 |
| 9863 | Estate Of Edwin L. Bower | | Gas Operator | Dec 2023 |
| 9864 | Estate Of George Cantor | | Oil Operator | Dec 1988 |
| 9865 | Estate Of James L. Nelson | Pettus, TX 78146 | Oil & Gas Operator | Apr 2025 |
| 9866 | Estate Of James Robert Wells | West Henrietta, NY 14586 | Oil Operator | Dec 2023 |
| 9867 | Estate Of Jerome B. Herrmann | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2022 |
| 9868 | Estate Of L. C. Dougan | | Gas Operator | Dec 1987 |
| 9869 | Estate Of Robert J. Burick | Fredonia, NY 14063 | Gas Operator | Dec 2023 |
| 9870 | Estate Of William G. Helis | | Oil & Gas Operator | May 1994 |
| 9871 | Estate Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2011 |
| 9872 | Estes And Company LLC. | Perryton, TX 79070 | Oil & Gas Operator | Apr 2025 |
| 9873 | Estes Operating, Inc. | San Antonio, TX 78210 | Oil & Gas Operator | Mar 2002 |
| 9874 | Estes Operating, LLC | La Porte, TX 77571 | Oil & Gas Operator | Apr 2025 |
| 9875 | Estoril Producing Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 9876 | Et Gathering & Processing LLC | Dallas, TX 75225 | Oil Operator | Dec 2024 |
| 9877 | Etc Field Services LLC | San Antonio, TX 78258 | Oil Operator | Jun 2018 |
| 9878 | Etc Oil Co. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2004 |
| 9879 | Etc Oil Corp | | Oil & Gas Operator | Mar 1994 |
| 9880 | Etc Texas Pipeline, LTD. | Dallas, TX 75225 | Oil Operator | Sep 2023 |
| 9881 | Etchegoin Oil LLC | | Oil & Gas Operator | Dec 2024 |
| 9882 | Etd Oil Co. | | Oil Operator | Oct 1990 |
| 9883 | Eternity Exploration, LLC | Coppell, TX 75019 | Oil Operator | Dec 2024 |
| 9884 | Ethredge & Rhoads Oil Company | | Oil Operator | Dec 2012 |
| 9885 | Ethredge Oil Company | | Oil & Gas Operator | Aug 1998 |
| 9886 | Ethyl Gas Company, LLC | | Oil Operator | Jan 2025 |
| 9887 | Ethyl Properties Inc. | | Oil & Gas Operator | Aug 1989 |
| 9888 | Ethyl-Buchanan | | Oil & Gas Operator | Feb 1987 |
| 9889 | Etl Hydrocarbons, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Apr 2025 |
| 9890 | Etm Operating Company, Inc. | Houston, TX 77079 | Oil Operator | Feb 2009 |
| 9891 | Etoco Incorporated | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 9892 | Etoco, L.P. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 9893 | Etopsi Oil And Gas, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 9894 | Etos Operating, Inc. | New London, TX 75682 | Oil & Gas Operator | Apr 2025 |
| 9895 | Ettco Enterprises, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 9896 | Etter Road Investments LLC | Erie, PA 16505-1352 | Gas Operator | Dec 2024 |
| 9897 | Etx Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2022 |
| 9898 | Eubank Michael Dba Trilby Oil Company | Amber, OK 73004-4903 | Oil Operator | May 2022 |
| 9899 | Eubank Operating Company | Cushing, OK 74023 | Oil & Gas Operator | Aug 2024 |
| 9900 | Eubank, Robert B. & B. K. | Spring, TX 77388 | Oil & Gas Operator | Mar 2008 |