| 9401 | Equitable Resources Energy Company | Big Stone Gap, VA 24219 | Oil & Gas Operator | Dec 1997 |
| 9402 | Equitrans Inc | Cannonsburg, PA 15317 | Oil & Gas Operator | Dec 2018 |
| 9403 | Equitrans, L. P. | Pittsburgh`, PA 15222 | Oil & Gas Operator | Jul 2021 |
| 9404 | Equity Drilling Company Inc | Dewey, OK 74029 | Oil & Gas Operator | Nov 1998 |
| 9405 | Equity Oil & Gas Funds Inc | Orlando, FL 32837-6103 | Oil & Gas Operator | Dec 2025 |
| 9406 | Equity Oil Company | Salt Lake City, UT 84110-095 | Oil & Gas Operator | Aug 2004 |
| 9407 | Eqv Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Sep 2026 |
| 9408 | Eqv Operating NM LLC | Houston, TX 77024 | Oil & Gas Operator | Jun 2026 |
| 9409 | Eram, Inc. | | Oil & Gas Operator | Dec 2024 |
| 9410 | Eratz Investments Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2026 |
| 9411 | Erbe, Dwayne E. (Estate) | Neodesha, KS 66757 | Oil Operator | Mar 2026 |
| 9412 | Erbert Don Oil C | | Oil Operator | May 1993 |
| 9413 | Erbert, Harold | Iola, KS 66749 | Oil Operator | Dec 1992 |
| 9414 | Erebor Resources, LLC | Tyler, TX 75702 | Oil & Gas Operator | Dec 2025 |
| 9415 | Ereunao Oil & Gas, Inc. | | Oil & Gas Operator | Mar 2003 |
| 9416 | Erg Operating Company Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 2006 |
| 9417 | Erg Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2015 |
| 9418 | Ergon Energy Partners, L.P. | Jackson, MS 39215 | Oil & Gas Operator | Apr 2024 |
| 9419 | Ergon Exploration, Inc. | | Oil & Gas Operator | Jun 2023 |
| 9420 | Ergon, Inc. | | Oil & Gas Operator | Dec 2005 |
| 9421 | Eric Petroleum Corp | Austintown, OH 44515-1053 | Oil & Gas Operator | Dec 2025 |
| 9422 | Ericksen, W.R. | Hobbs, NM 88240 | Oil & Gas Operator | Nov 1993 |
| 9423 | Erie City Erie Cnty | | Gas Operator | Dec 1999 |
| 9424 | Erie Hard Chrome Inc | Erie, PA 16511-1750 | Gas Operator | Dec 2014 |
| 9425 | Erie Oil & Gas Co | Columbus, OH 43229 | Oil & Gas Operator | Dec 1989 |
| 9426 | Erin Exploration Associates | | Oil & Gas Operator | Mar 1987 |
| 9427 | Erin Oil Co. | Midland, TX 79707 | Oil & Gas Operator | Sep 2026 |
| 9428 | Erin Oil Exploration, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 1996 |
| 9429 | Ermis Vacuum Service | El Campo, TX 77437 | Oil & Gas Operator | Mar 2010 |
| 9430 | Ermis Vacuum Service, LLC | El Campo, TX 77437 | Oil & Gas Operator | Sep 2026 |
| 9431 | Ernest Operating Company | Rockdale, TX 76567 | Oil & Gas Operator | Sep 2026 |
| 9432 | Ernest Starkey, Jr. | | Oil & Gas Operator | Feb 1985 |
| 9433 | Ernie L Hegwer Ind | Hobbs, NM 88240 | Oil & Gas Operator | Sep 2002 |
| 9434 | Ernmar Investments, Inc. | Edmond, OK 73083 | Oil & Gas Operator | Sep 2026 |
| 9435 | Ernst & Steinle | | Oil Operator | Oct 1991 |
| 9436 | Ernst Petroleum Company Inc | Arlington, VA 22201 | Oil & Gas Operator | Aug 2013 |
| 9437 | Eroc Gathering Company, LP | | Oil Operator | Jul 2014 |
| 9438 | Eros Operating LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2026 |
| 9439 | Erp Environmental Fund, Inc. | | Gas Operator | Dec 2018 |
| 9440 | Ers Operating Company LLC | Bothell, WA 98012 | Oil & Gas Operator | Jun 2016 |
| 9441 | Ers Resources, LLC | Irving, TX 75038 | Oil Operator | Sep 2010 |
| 9442 | Erskine Energy, LLC | Hot Springs V, AR 71909 | Oil & Gas Operator | Sep 2026 |
| 9443 | Erskine Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2007 |
| 9444 | Erso, Inc. | Houston, TX 77002 | Gas Operator | Mar 1995 |
| 9445 | Erson Royalty Company, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Feb 2006 |
| 9446 | Erwin Oil & Gas LTD Co | Hobbs, NM 882411506 | Oil & Gas Operator | Apr 2003 |
| 9447 | Erwin Oil Company | Jacksboro, TX 76458 | Oil Operator | Sep 2026 |
| 9448 | Erwin Operating | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 9449 | Erwin W. Saye | | Oil & Gas Operator | Apr 1979 |
| 9450 | Erwin, James D. | Dallas, TX 75225 | Oil & Gas Operator | Nov 1993 |
| 9451 | Erwin, Sanford P | | Oil & Gas Operator | Apr 2019 |
| 9452 | Escalera Resources Co | Casper, WY 82602 | Oil & Gas Operator | May 2018 |
| 9453 | Escambia Operating Co., LLC | Gulfport, MS 39501 | Oil & Gas Operator | Feb 2026 |
| 9454 | Escher Corporation | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2026 |
| 9455 | Esco Exploration, Inc | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 9456 | Esco Oil & Gas, Inc. | | Oil & Gas Operator | Nov 2009 |
| 9457 | Esco Oil Operating Company LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2026 |
| 9458 | Escoba Royalty Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2005 |
| 9459 | Escondido Bay Corporation | Dallas, TX 75202 | Oil & Gas Operator | Sep 2026 |
| 9460 | Escondido Operating, Inc. | Carrollton, TX 75011 | Oil & Gas Operator | Jun 2013 |
| 9461 | Escondido Petroleum Company, Inc | Houston, TX 77063 | Oil & Gas Operator | Sep 2026 |
| 9462 | Escondido Resources GP, LLC | Midland, TX 79708 | Oil & Gas Operator | Dec 2007 |
| 9463 | Escondido Resources II, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 9464 | Escondido Resources Oper Co, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 9465 | Escott Oil Inc | Nowata, OK 74048 | Oil & Gas Operator | Feb 2000 |
| 9466 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Sep 2026 |
| 9467 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Jul 2026 |
| 9468 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
| 9469 | Esg Resources LLC | Dallas, TX 75231 | Oil & Gas Operator | Sep 2026 |
| 9470 | Esis Inc | | Oil & Gas Operator | Feb 2017 |
| 9471 | Eskridge Oil & Supply | Tulsa, OK 74105 | Oil Operator | Aug 2014 |
| 9472 | Eskridge Production Company | Tulsa, OK 74112-1428 | Oil Operator | Sep 2019 |
| 9473 | Eslick Nancy Sue | Bristow, OK 74010-3873 | Oil Operator | Aug 2013 |
| 9474 | Esna Operating Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1994 |
| 9475 | Esoterra, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Sep 2026 |
| 9476 | Esp Development, Inc. | Salina, KS 67401 | Oil Operator | Apr 2026 |
| 9477 | Esp Energy, LLC | Nocona, TX 76255 | Oil Operator | Sep 2026 |
| 9478 | Espada Operating LLC | San Antonio, TX 78209 | Oil Operator | Sep 2026 |
| 9479 | Esper Production Co | Arlington, TX 76011-2427 | Oil & Gas Operator | Apr 2015 |
| 9480 | Esperanza Energy Corp. | Prosper, TX 75078 | Oil & Gas Operator | Mar 2015 |
| 9481 | Esquire Oil And Gas LLC | | Oil & Gas Operator | Jan 2011 |
| 9482 | Essex Corporation | | Oil Operator | Jan 1983 |
| 9483 | Essex Corporation Of Louisiana | | Oil Operator | Dec 1997 |
| 9484 | Essex Energy Inc | Yukon, OK 73099-5126 | Oil & Gas Operator | Apr 2014 |
| 9485 | Essex Resources, LLC | Coffeyville, KS 67337 | Oil Operator | May 2026 |
| 9486 | Essman Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2019 |
| 9487 | Est Of WM G Helis (A Partnership) | | Oil & Gas Operator | Dec 2009 |
| 9488 | Est. Of H. L. Hunt | | Oil & Gas Operator | Jun 1983 |
| 9489 | Estacado Energy, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 1999 |
| 9490 | Estacado Energy, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 9491 | Estancia Oil & Gas, LLC | Austin, TX 78716 | Oil & Gas Operator | Sep 2026 |
| 9492 | Estate Of C.B. Christie Jr | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 9493 | Estate Of Crawford Oil & Gas, Inc. | Midland, TX 79705 | Oil & Gas Operator | Aug 2006 |
| 9494 | Estate Of George Cantor | | Oil Operator | Dec 1988 |
| 9495 | Estate Of James L. Nelson | Pettus, TX 78146 | Oil & Gas Operator | Sep 2026 |
| 9496 | Estate Of James Robert Wells | West Henrietta, NY 14586 | Oil Operator | Dec 2025 |
| 9497 | Estate Of L. C. Dougan | | Gas Operator | Dec 1987 |
| 9498 | Estate Of Robert J. Burick | Fredonia, NY 14063 | Gas Operator | Dec 2025 |
| 9499 | Estate Of William G. Helis | | Oil & Gas Operator | May 1994 |
| 9500 | Estate Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2011 |