| 9501 | Essex Corporation Of Louisiana | | Oil Operator | Dec 1997 |
| 9502 | Essex Energy Inc | Yukon, OK 73099-5126 | Oil & Gas Operator | Apr 2014 |
| 9503 | Essex Resources, LLC | Coffeyville, KS 67337 | Oil Operator | Dec 2025 |
| 9504 | Essman Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2019 |
| 9505 | Est Of WM G Helis (A Partnership) | | Oil & Gas Operator | Dec 2009 |
| 9506 | Est. Of H. L. Hunt | | Oil & Gas Operator | Jun 1983 |
| 9507 | Estacado Energy, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 1999 |
| 9508 | Estacado Energy, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | May 2026 |
| 9509 | Estancia Oil & Gas, LLC | Austin, TX 78716 | Oil & Gas Operator | May 2026 |
| 9510 | Estate Of C.B. Christie Jr | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 9511 | Estate Of Crawford Oil & Gas, Inc. | Midland, TX 79705 | Oil & Gas Operator | Aug 2006 |
| 9512 | Estate Of George Cantor | | Oil Operator | Dec 1988 |
| 9513 | Estate Of James L. Nelson | Pettus, TX 78146 | Oil & Gas Operator | May 2026 |
| 9514 | Estate Of James Robert Wells | West Henrietta, NY 14586 | Oil Operator | Dec 2024 |
| 9515 | Estate Of L. C. Dougan | | Gas Operator | Dec 1987 |
| 9516 | Estate Of Robert J. Burick | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 9517 | Estate Of Troy Davis Williams | Ozona, TX 76943 | Oil Operator | May 2026 |
| 9518 | Estate Of William G. Helis | | Oil & Gas Operator | May 1994 |
| 9519 | Estate Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2011 |
| 9520 | Estate Oil & Gas LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2026 |
| 9521 | Estes And Company LLC. | Perryton, TX 79070 | Oil & Gas Operator | May 2026 |
| 9522 | Estes Operating, Inc. | San Antonio, TX 78210 | Oil & Gas Operator | Mar 2002 |
| 9523 | Estes Operating, LLC | La Porte, TX 77571 | Oil & Gas Operator | May 2026 |
| 9524 | Estoril Producing Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 9525 | Et Gathering & Processing LLC | Dallas, TX 75225 | Oil Operator | Dec 2024 |
| 9526 | Etc Field Services LLC | San Antonio, TX 78258 | Oil Operator | Jun 2018 |
| 9527 | Etc Oil Co. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2004 |
| 9528 | Etc Oil Corp | | Oil & Gas Operator | Mar 1994 |
| 9529 | Etc Texas Pipeline, LTD. | Dallas, TX 75225 | Oil Operator | Sep 2023 |
| 9530 | Etchegoin Oil LLC | | Oil & Gas Operator | Mar 2026 |
| 9531 | Etd Oil Co. | | Oil Operator | Oct 1990 |
| 9532 | Eternity Exploration, LLC | Coppell, TX 75019 | Oil Operator | Jun 2021 |
| 9533 | Ethredge & Rhoads Oil Company | | Oil Operator | Dec 2012 |
| 9534 | Ethredge Oil Company | | Oil & Gas Operator | Aug 1998 |
| 9535 | Ethyl Gas Company, LLC | | Oil Operator | Jan 2025 |
| 9536 | Ethyl Properties Inc | | Oil & Gas Operator | Aug 1989 |
| 9537 | Ethyl-Buchanan | | Oil & Gas Operator | Feb 1987 |
| 9538 | Etl Hydrocarbons, Inc. | Andrews, TX 79714 | Oil & Gas Operator | May 2026 |
| 9539 | Etm Operating Company, Inc. | Houston, TX 77079 | Oil Operator | Feb 2009 |
| 9540 | Etoco Incorporated | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 9541 | Etoco, L.P. | Houston, TX 77002 | Oil & Gas Operator | May 2026 |
| 9542 | Etopsi Oil And Gas, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | May 2026 |
| 9543 | Etos Operating, Inc. | New London, TX 75682 | Oil & Gas Operator | May 2026 |
| 9544 | Ettco Enterprises, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 9545 | Etx Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2022 |
| 9546 | Eubank Michael Dba Trilby Oil Company | Amber, OK 73004-4903 | Oil Operator | May 2022 |
| 9547 | Eubank Operating Company | Cushing, OK 74023 | Oil & Gas Operator | Aug 2024 |
| 9548 | Eubank, Robert B. & B. K. | Spring, TX 77388 | Oil & Gas Operator | Mar 2008 |
| 9549 | Eucutta Petroleum Inc. | | Oil & Gas Operator | Sep 2000 |
| 9550 | Eugene E. Marble | | Oil Operator | Dec 1981 |
| 9551 | Eugene Talbert Operating Co. | | Oil & Gas Operator | Mar 2013 |
| 9552 | Eunice Well Service Inc | Eunice, NM 88231 | Oil & Gas Operator | Jan 2000 |
| 9553 | Euram Petroleum | | Oil Operator | Apr 1986 |
| 9554 | Euratex Corp | Glade Park, CO 81523 | Oil & Gas Operator | Sep 1996 |
| 9555 | Eureka Expl Co, Inc | | Oil Operator | Dec 2013 |
| 9556 | Eureka Gas Co, Inc | Pikeville, KY 41502 | Gas Operator | Dec 2010 |
| 9557 | Eureka Oil And Gas LLC | Columbus, OH 43230 | Oil Operator | Dec 2020 |
| 9558 | Eureka Prospecting Company | Wimberley, TX 78676 | Oil & Gas Operator | Jun 2023 |
| 9559 | Euroamerican Energy Group Inc | | Oil & Gas Operator | Oct 1993 |
| 9560 | Euroamerican Pet Corp | Columbus, OH 43229 | Gas Operator | Dec 1991 |
| 9561 | Euromin Canada, Inc. | | Oil & Gas Operator | Mar 1987 |
| 9562 | European-Southwest Co. | Houston, TX 77254 | Oil & Gas Operator | May 2026 |
| 9563 | Eurotex Royalty, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Aug 2003 |
| 9564 | Eurovest Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 9565 | Ev Fleming Enterprises, LLC | Kilgore, TX 75662 | Oil & Gas Operator | Aug 2024 |
| 9566 | Evan Energy Co, LC | | Gas Operator | Dec 2013 |
| 9567 | Evangelical Free Church | | Oil & Gas Operator | Dec 1987 |
| 9568 | Evangeline Natural Resources, LLC | | Oil & Gas Operator | Jan 2025 |
| 9569 | Evangeline Oil Prod. Co., Inc. | | Oil Operator | Apr 2001 |
| 9570 | Evangeline Operating Co., Inc. | | Oil Operator | Jun 1989 |
| 9571 | Evangeline Pumpers, Inc. | | Oil & Gas Operator | Jul 2005 |
| 9572 | Evangeline Trading Company | Ballinger, TX 76821 | Oil & Gas Operator | May 2026 |
| 9573 | Evans Brothers | | Oil & Gas Operator | Jan 2025 |
| 9574 | Evans Douglas G | | Oil Operator | Aug 1987 |
| 9575 | Evans Energy, LLC | Mount Hope, KS 67108 | Oil & Gas Operator | Dec 2025 |
| 9576 | Evans Jay Oil Co | Iola, KS 66749 | Oil Operator | Apr 2001 |
| 9577 | Evans John Roy | | Oil Operator | Nov 1992 |
| 9578 | Evans Oil Company Inc | Eunice, NM 88231 | Oil & Gas Operator | Feb 2007 |
| 9579 | Evans Oil D W - | | Oil Operator | Mar 1992 |
| 9580 | Evans Oil Inc. | Lebo, KS 66856 | Oil Operator | Dec 2025 |
| 9581 | Evans Production Co. | Pampa, TX 79066 | Oil & Gas Operator | Sep 2020 |
| 9582 | Evans Well Service | | Oil Operator | Oct 2013 |
| 9583 | Evans, Carl N. | Graham, TX 76450 | Oil & Gas Operator | Feb 2001 |
| 9584 | Evans, Glenn A. | Paola, KS 66071 | Oil Operator | Oct 1989 |
| 9585 | Evans, Julian | Houston, TX 77024 | Oil & Gas Operator | Nov 1995 |
| 9586 | Evans, Ralph | San Antonio, TX 78209 | Oil & Gas Operator | Jan 2011 |
| 9587 | Evans, S. Lavon Jr. Oper. Co. | Laurel, MS 39442 | Oil & Gas Operator | May 2026 |
| 9588 | Evans-Brant (Lake Shore) Central School District | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 9589 | Evantech Energy Corp. | Fort Worth, TX 76120 | Oil & Gas Operator | Apr 1995 |
| 9590 | Evarado Oil Company | Strawn, TX 76475 | Oil & Gas Operator | May 2026 |
| 9591 | Evarado Oil, LLC | Strawn, TX 76475 | Oil & Gas Operator | May 2026 |
| 9592 | Evenson Oil Oper | | Oil Operator | Nov 1991 |
| 9593 | Everest Minerals Corp. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Apr 2001 |
| 9594 | Everest Network LLC | Eastland, TX 76448 | Oil & Gas Operator | May 2026 |
| 9595 | Everest Oil & Gas LLC | Santa Barbara, CA 93101 | Oil Operator | Jan 2026 |
| 9596 | Everest Resource Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 2026 |
| 9597 | Everett Oil | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2015 |
| 9598 | Everett Oil, Inc. | San Antonio, TX 78258 | Oil Operator | May 2026 |
| 9599 | Everett, Jack T | | Oil Operator | Apr 2007 |
| 9600 | Everett, Joe Mack | Throckmorton, TX 76483 | Oil & Gas Operator | May 2026 |