| 9501 | Escondido Resources II, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 9502 | Escondido Resources Oper Co, LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2026 |
| 9503 | Escott Oil Inc | Nowata, OK 74048 | Oil & Gas Operator | Feb 2000 |
| 9504 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Aug 2026 |
| 9505 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Mar 2026 |
| 9506 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
| 9507 | Esg Resources LLC | Dallas, TX 75231 | Oil & Gas Operator | Aug 2026 |
| 9508 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 9509 | Eskridge Oil & Supply | Tulsa, OK 74105 | Oil Operator | Aug 2014 |
| 9510 | Eskridge Production Company | Tulsa, OK 74112-1428 | Oil Operator | Sep 2019 |
| 9511 | Eslick Nancy Sue | Bristow, OK 74010-3873 | Oil Operator | Aug 2013 |
| 9512 | Esna Operating Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1994 |
| 9513 | Esoterra, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Aug 2026 |
| 9514 | Esp Development, Inc. | Salina, KS 67401 | Oil Operator | Apr 2026 |
| 9515 | Esp Energy, LLC | Nocona, TX 76255 | Oil Operator | Aug 2026 |
| 9516 | Espada Operating LLC | San Antonio, TX 78209 | Oil Operator | Aug 2026 |
| 9517 | Esper Production Co | Arlington, TX 76011-2427 | Oil & Gas Operator | Apr 2015 |
| 9518 | Esperanza Energy Corp. | Prosper, TX 75078 | Oil & Gas Operator | Mar 2015 |
| 9519 | Esquire Oil And Gas LLC | | Oil & Gas Operator | Jan 2011 |
| 9520 | Essex Corporation | | Oil Operator | Jan 1983 |
| 9521 | Essex Corporation Of Louisiana | | Oil Operator | Dec 1997 |
| 9522 | Essex Energy Inc | Yukon, OK 73099-5126 | Oil & Gas Operator | Apr 2014 |
| 9523 | Essex Resources, LLC | Coffeyville, KS 67337 | Oil Operator | Apr 2026 |
| 9524 | Essman Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2019 |
| 9525 | Est Of WM G Helis (A Partnership) | | Oil & Gas Operator | Dec 2009 |
| 9526 | Est. Of H. L. Hunt | | Oil & Gas Operator | Jun 1983 |
| 9527 | Estacado Energy, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 1999 |
| 9528 | Estacado Energy, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 2026 |
| 9529 | Estancia Oil & Gas, LLC | Austin, TX 78716 | Oil & Gas Operator | Aug 2026 |
| 9530 | Estate Of C.B. Christie Jr | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2026 |
| 9531 | Estate Of Crawford Oil & Gas, Inc. | Midland, TX 79705 | Oil & Gas Operator | Aug 2006 |
| 9532 | Estate Of George Cantor | | Oil Operator | Dec 1988 |
| 9533 | Estate Of James L. Nelson | Pettus, TX 78146 | Oil & Gas Operator | Aug 2026 |
| 9534 | Estate Of James Robert Wells | West Henrietta, NY 14586 | Oil Operator | Dec 2025 |
| 9535 | Estate Of L. C. Dougan | | Gas Operator | Dec 1987 |
| 9536 | Estate Of Robert J. Burick | Fredonia, NY 14063 | Gas Operator | Dec 2025 |
| 9537 | Estate Of William G. Helis | | Oil & Gas Operator | May 1994 |
| 9538 | Estate Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2011 |
| 9539 | Estes And Company LLC. | Perryton, TX 79070 | Oil & Gas Operator | Aug 2026 |
| 9540 | Estes Operating, Inc. | San Antonio, TX 78210 | Oil & Gas Operator | Mar 2002 |
| 9541 | Estes Operating, LLC | La Porte, TX 77571 | Oil & Gas Operator | Aug 2026 |
| 9542 | Estoril Producing Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 9543 | Et Gathering & Processing LLC | Dallas, TX 75225 | Oil Operator | Dec 2024 |
| 9544 | Etc Field Services LLC | Dallas, TX 75225 | Oil Operator | Jun 2018 |
| 9545 | Etc Oil Co. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2004 |
| 9546 | Etc Oil Corp | | Oil & Gas Operator | Mar 1994 |
| 9547 | Etc Texas Pipeline, LTD. | Dallas, TX 75225 | Oil Operator | Sep 2023 |
| 9548 | Etchegoin Oil LLC | | Oil & Gas Operator | Jun 2026 |
| 9549 | Etd Oil Co. | | Oil Operator | Oct 1990 |
| 9550 | Eternity Exploration, LLC | Coppell, TX 75019 | Oil Operator | Jun 2021 |
| 9551 | Ethredge & Rhoads Oil Company | | Oil Operator | Dec 2012 |
| 9552 | Ethredge Oil Company | | Oil & Gas Operator | Aug 1998 |
| 9553 | Ethyl Gas Company, LLC | | Oil Operator | Jan 2025 |
| 9554 | Ethyl Properties Inc | | Oil & Gas Operator | Aug 1989 |
| 9555 | Ethyl-Buchanan | | Oil & Gas Operator | Feb 1987 |
| 9556 | Etl Hydrocarbons, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Aug 2026 |
| 9557 | Etm Operating Company, Inc. | Houston, TX 77079 | Oil Operator | Feb 2009 |
| 9558 | Etoco Incorporated | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 9559 | Etoco, L.P. | Houston, TX 77002 | Oil & Gas Operator | Aug 2026 |
| 9560 | Etopsi Oil And Gas, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2026 |
| 9561 | Etos Operating, Inc. | New London, TX 75682 | Oil & Gas Operator | Aug 2026 |
| 9562 | Ettco Enterprises, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 9563 | Etx Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2022 |
| 9564 | Eubank Michael Dba Trilby Oil Company | Amber, OK 73004-4903 | Oil Operator | May 2022 |
| 9565 | Eubank Operating Company | Cushing, OK 74023 | Oil & Gas Operator | Aug 2024 |
| 9566 | Eubank, Robert B. & B. K. | Spring, TX 77388 | Oil & Gas Operator | Mar 2008 |
| 9567 | Eucutta Petroleum Inc. | | Oil & Gas Operator | Sep 2000 |
| 9568 | Eufaula Enterpri | | Oil & Gas Operator | Mar 1986 |
| 9569 | Eugene E. Marble | | Oil Operator | Dec 1981 |
| 9570 | Eugene Talbert Operating Co. | | Oil & Gas Operator | Mar 2013 |
| 9571 | Eunice Well Service Inc | Eunice, NM 88231 | Oil & Gas Operator | Jan 2000 |
| 9572 | Euram Petroleum | | Oil Operator | Apr 1986 |
| 9573 | Euratex Corp | Glade Park, CO 81523 | Oil & Gas Operator | Sep 1996 |
| 9574 | Eureka Expl Co, Inc | | Oil Operator | Dec 2013 |
| 9575 | Eureka Gas Co, Inc | Pikeville, KY 41502 | Gas Operator | Dec 2010 |
| 9576 | Eureka Oil And Gas LLC | Columbus, OH 43230 | Oil Operator | Dec 2020 |
| 9577 | Eureka Prospecting Company | Wimberley, TX 78676 | Oil & Gas Operator | Jun 2023 |
| 9578 | Euroamerican Energy Group Inc | | Oil & Gas Operator | Oct 1993 |
| 9579 | Euroamerican Pet Corp | Columbus, OH 43229 | Gas Operator | Dec 1991 |
| 9580 | Euromin Canada, Inc. | | Oil & Gas Operator | Mar 1987 |
| 9581 | European-Southwest Co. | Houston, TX 77254 | Oil & Gas Operator | Aug 2026 |
| 9582 | Eurotex Royalty, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Aug 2003 |
| 9583 | Eurovest Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 9584 | Ev Fleming Enterprises, LLC | Kilgore, TX 75662 | Oil & Gas Operator | Aug 2024 |
| 9585 | Evan Energy Co, LC | | Gas Operator | Dec 2013 |
| 9586 | Evangelical Free Church | | Oil & Gas Operator | Dec 1987 |
| 9587 | Evangeline Natural Resources, LLC | | Oil & Gas Operator | Jan 2025 |
| 9588 | Evangeline Oil Prod. Co., Inc. | | Oil Operator | Apr 2001 |
| 9589 | Evangeline Operating Co., Inc. | | Oil Operator | Jun 1989 |
| 9590 | Evangeline Pumpers, Inc. | | Oil & Gas Operator | Jul 2005 |
| 9591 | Evangeline Trading Company | Ballinger, TX 76821 | Oil & Gas Operator | Aug 2026 |
| 9592 | Evans Brothers | | Oil & Gas Operator | Jan 2025 |
| 9593 | Evans Douglas G | | Oil Operator | Aug 1987 |
| 9594 | Evans Energy, LLC | Mount Hope, KS 67108 | Oil & Gas Operator | Apr 2026 |
| 9595 | Evans Jay Oil Co | Iola, KS 66749 | Oil Operator | Apr 2001 |
| 9596 | Evans John Roy | | Oil Operator | Nov 1992 |
| 9597 | Evans Oil Company Inc | Eunice, NM 88231 | Oil & Gas Operator | Feb 2007 |
| 9598 | Evans Oil D W - | | Oil Operator | Mar 1992 |
| 9599 | Evans Oil Inc. | Lebo, KS 66856 | Oil Operator | Apr 2026 |
| 9600 | Evans Production Co. | Pampa, TX 79066 | Oil & Gas Operator | Sep 2020 |