| 3501 | Enerquest Operating, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2024 |
| 3502 | Enerquest Resources, LLC | Midland, TX 79702 | Oil & Gas Operator | Nov 2005 |
| 3503 | Enerstar Resources, L.C. | Midland, TX 79701 | Oil & Gas Operator | Apr 1999 |
| 3504 | Enertex, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 1995 |
| 3505 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 3506 | Enex Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
| 3507 | Enexco, Inc. | Dallas, TX 75243 | Oil & Gas Operator | Mar 2017 |
| 3508 | Enfield Operating Company, LLC | Coppell, TX 75019 | Oil Operator | Nov 2024 |
| 3509 | Eng, George E. | Midland, TX 79701 | Oil & Gas Operator | Dec 2011 |
| 3510 | Engas Corporation | Jacksboro, TX 76458 | Oil & Gas Operator | May 2008 |
| 3511 | Engas XP, LLC | Wimberley, TX 78676 | Oil & Gas Operator | Nov 2024 |
| 3512 | Engelke, R. H. | San Antonio, TX 78230 | Oil & Gas Operator | Nov 2024 |
| 3513 | Engelke, Randall Glen | Luling, TX 78648 | Oil & Gas Operator | Jul 2007 |
| 3514 | Engroup Resources, L.P. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 3515 | Enhanced Energy Partners Corp | Tomball, TX 77377 | Oil & Gas Operator | Nov 2024 |
| 3516 | Enhanced RS, Inc. | Luling, TX 78648 | Oil Operator | Nov 2024 |
| 3517 | Enid Operating, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Nov 2024 |
| 3518 | Enline Operating, L.L.C. | Houston, TX 77019 | Oil & Gas Operator | Jun 1998 |
| 3519 | Enline Resources, LLC | Houston, TX 77254 | Oil & Gas Operator | Feb 1996 |
| 3520 | Enlink Crude Marketing LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2022 |
| 3521 | Enlo Energy Co., LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2001 |
| 3522 | Enloe Oil Company | Olney, TX 76374 | Oil & Gas Operator | Jun 2000 |
| 3523 | Enmark Gas Gathering L. P. | Dallas, TX 75252 | Oil & Gas Operator | Jun 2024 |
| 3524 | Enpower Resources Inc. | Sugar Land, TX 77479 | Oil & Gas Operator | Nov 2024 |
| 3525 | Enr Operating, LLC | Eunice, NM 88231 | Oil & Gas Operator | Nov 2024 |
| 3526 | Enre Corp. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2005 |
| 3527 | Enre LP | Kingwood, TX 77339 | Oil & Gas Operator | Feb 2004 |
| 3528 | Enrich Oil Corporation | Abilene, TX 79604 | Oil & Gas Operator | Nov 2024 |
| 3529 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
| 3530 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 3531 | Enserch Oil & Gas, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Mar 1998 |
| 3532 | Ensight Energy Management, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Jul 2005 |
| 3533 | Ensight III Energy MGMT, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2008 |
| 3534 | Ensight IV Energy Management,LLC | Shreveport, LA 71101 | Oil & Gas Operator | Jul 2024 |
| 3535 | Ensight Resources, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2001 |
| 3536 | Ensign Operating Co. | Denver, CO 80202 | Oil & Gas Operator | Jan 2004 |
| 3537 | Ensign Operating LLC | Houston, TX 77086 | Oil & Gas Operator | Feb 2023 |
| 3538 | Enstar Energy, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Nov 2024 |
| 3539 | Enterprise Crude Oil LLC | Oklahoma City, OK 73102 | Oil Operator | Aug 2011 |
| 3540 | Enterra Resources, LLC | Edmond, OK 73083 | Oil & Gas Operator | Jul 2024 |
| 3541 | Enwest Resources, Inc. | Midland, TX 79705 | Oil & Gas Operator | Aug 1994 |
| 3542 | EOG (Oklahoma) Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Oct 2016 |
| 3543 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 3544 | Eor Operating Company | Houston, TX 77079 | Oil & Gas Operator | Nov 2024 |
| 3545 | EP Energy E&P Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Nov 2024 |
| 3546 | EP Energy E&P Company, LP | Houston, TX 77210 | Oil & Gas Operator | May 2022 |
| 3547 | EP Operating Limited Partnership | Dallas, TX 75201 | Oil & Gas Operator | Feb 1995 |
| 3548 | Epic Permian Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Nov 2024 |
| 3549 | Epstein, Edwin A Jr Oper Co Inc | Las Vegas, NV 89128 | Gas Operator | Dec 2001 |
| 3550 | Eqt Production Texas, LLC | Pittsburgh, PA 15222 | Oil & Gas Operator | Jun 2018 |
| 3551 | Eqv Operating LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Nov 2024 |
| 3552 | Eratz Investments Inc. | Dallas, TX 75240 | Oil & Gas Operator | Nov 2024 |
| 3553 | Erebor Resources, LLC | Tyler, TX 75702 | Oil & Gas Operator | Oct 2019 |
| 3554 | Erg Operating Company Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 2006 |
| 3555 | Erg Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2015 |
| 3556 | Ergon Energy Partners, L.P. | Monroe, LA 71207 | Oil & Gas Operator | Apr 2024 |
| 3557 | Ericksen, W.R. | Hobbs, NM 88240 | Oil & Gas Operator | Nov 1993 |
| 3558 | Erin Oil Co. | Midland, TX 79707 | Oil & Gas Operator | Nov 2024 |
| 3559 | Erin Oil Exploration, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 1996 |
| 3560 | Ermis Vacuum Service | El Campo, TX 77437 | Oil & Gas Operator | Mar 2010 |
| 3561 | Ermis Vacuum Service, LLC | El Campo, TX 77437 | Oil & Gas Operator | Nov 2024 |
| 3562 | Ernest Operating Company | Rockdale, TX 76567 | Oil & Gas Operator | Nov 2024 |
| 3563 | Ernmar Investments, Inc. | Edmond, OK 73083 | Oil & Gas Operator | Nov 2024 |
| 3564 | Eros Operating LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Nov 2024 |
| 3565 | Erskine Energy, LLC | H SPG NTL PK, AR 71909 | Oil & Gas Operator | Nov 2024 |
| 3566 | Erskine Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2007 |
| 3567 | Erso, Inc. | Houston, TX 77002 | Gas Operator | Mar 1995 |
| 3568 | Erson Royalty Company, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Feb 2006 |
| 3569 | Erwin Oil Company | Jacksboro, TX 76458 | Oil Operator | Nov 2024 |
| 3570 | Erwin Operating | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 3571 | Erwin, James D. | Dallas, TX 75225 | Oil & Gas Operator | Nov 1993 |
| 3572 | Esco Oil Operating Company LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2024 |
| 3573 | Escoba Royalty Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2005 |
| 3574 | Escondido Bay Corporation | Midland, TX 79710 | Oil Operator | Nov 2024 |
| 3575 | Escondido Operating, Inc. | Carrollton, TX 75011 | Oil & Gas Operator | Jun 2013 |
| 3576 | Escondido Petroleum Company, Inc | Houston, TX 77063 | Oil & Gas Operator | Nov 2024 |
| 3577 | Escondido Resources GP, LLC | Midland, TX 79708 | Oil & Gas Operator | Dec 2007 |
| 3578 | Escondido Resources II, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 3579 | Escondido Resources Oper Co, LLC | Katy, TX 77449 | Oil & Gas Operator | Nov 2024 |
| 3580 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Nov 2024 |
| 3581 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Aug 2024 |
| 3582 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
| 3583 | Esg Resources LLC | Dallas, TX 75231 | Oil & Gas Operator | Nov 2024 |
| 3584 | Esna Operating Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1994 |
| 3585 | Esoterra, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Nov 2024 |
| 3586 | Esp Energy, LLC | Nocona, TX 76255 | Oil Operator | Nov 2024 |
| 3587 | Espada Operating LLC | San Antonio, TX 78209 | Oil Operator | Nov 2024 |
| 3588 | Esperanza Energy Corp. | Prosper, TX 75078 | Oil & Gas Operator | Mar 2015 |
| 3589 | Essman Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2019 |
| 3590 | Estacado Energy, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 1999 |
| 3591 | Estacado Energy, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2024 |
| 3592 | Estancia Oil & Gas, LLC | Austin, TX 78716 | Oil & Gas Operator | Nov 2024 |
| 3593 | Estate Of C.B. Christie Jr | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2024 |
| 3594 | Estate Of James L. Nelson | Pettus, TX 78146 | Oil & Gas Operator | Nov 2024 |
| 3595 | Estate Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2011 |
| 3596 | Estes And Company LLC. | Perryton, TX 79070 | Oil & Gas Operator | Nov 2024 |
| 3597 | Estes Operating, Inc. | San Antonio, TX 78210 | Oil & Gas Operator | Mar 2002 |
| 3598 | Estes Operating, LLC | La Porte, TX 77571 | Oil & Gas Operator | Nov 2024 |
| 3599 | Estoril Producing Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 3600 | Et Gathering & Processing LLC | San Antonio, TX 78258 | Oil Operator | Jun 2024 |