| 3601 | Ermis Vacuum Service | El Campo, TX 77437 | Oil & Gas Operator | Mar 2010 |
| 3602 | Ermis Vacuum Service, LLC | El Campo, TX 77437 | Oil & Gas Operator | Jul 2025 |
| 3603 | Ernest Operating Company | Rockdale, TX 76567 | Oil & Gas Operator | Jul 2025 |
| 3604 | Ernmar Investments, Inc. | Edmond, OK 73083 | Oil & Gas Operator | Jul 2025 |
| 3605 | Eros Operating LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Jul 2025 |
| 3606 | Erskine Energy, LLC | H SPG NTL PK, AR 71909 | Oil & Gas Operator | Jul 2025 |
| 3607 | Erskine Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2007 |
| 3608 | Erso, Inc. | Houston, TX 77002 | Gas Operator | Mar 1995 |
| 3609 | Erson Royalty Company, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Feb 2006 |
| 3610 | Erwin Oil Company | Jacksboro, TX 76458 | Oil Operator | Jul 2025 |
| 3611 | Erwin Operating | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 3612 | Erwin, James D. | Dallas, TX 75225 | Oil & Gas Operator | Nov 1993 |
| 3613 | Esco Oil Operating Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 3614 | Escoba Royalty Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Nov 2005 |
| 3615 | Escondido Bay Corporation | Dallas, TX 75202 | Oil Operator | Jul 2025 |
| 3616 | Escondido Operating, Inc. | Carrollton, TX 75011 | Oil & Gas Operator | Jun 2013 |
| 3617 | Escondido Petroleum Company, Inc | Houston, TX 77063 | Oil & Gas Operator | Jul 2025 |
| 3618 | Escondido Resources GP, LLC | Midland, TX 79708 | Oil & Gas Operator | Dec 2007 |
| 3619 | Escondido Resources II, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2017 |
| 3620 | Escondido Resources Oper Co, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 3621 | Escudo Oil & Gas, LLC | Houston, TX 77006 | Oil & Gas Operator | Jul 2025 |
| 3622 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Apr 2025 |
| 3623 | Esenjay Petroleum Corp. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jul 1998 |
| 3624 | Esg Resources LLC | Dallas, TX 75231 | Oil & Gas Operator | Jul 2025 |
| 3625 | Esna Operating Co., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1994 |
| 3626 | Esoterra, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Jul 2025 |
| 3627 | Esp Energy, LLC | Nocona, TX 76255 | Oil Operator | Jul 2025 |
| 3628 | Espada Operating LLC | San Antonio, TX 78209 | Oil Operator | Jul 2025 |
| 3629 | Esperanza Energy Corp. | Prosper, TX 75078 | Oil & Gas Operator | Mar 2015 |
| 3630 | Essman Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2019 |
| 3631 | Estacado Energy, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 1999 |
| 3632 | Estacado Energy, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2025 |
| 3633 | Estancia Oil & Gas, LLC | Austin, TX 78716 | Oil & Gas Operator | Jul 2025 |
| 3634 | Estate Of C.B. Christie Jr | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |
| 3635 | Estate Of James L. Nelson | Pettus, TX 78146 | Oil & Gas Operator | Jul 2025 |
| 3636 | Estate Of Jerome B. Herrmann | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2022 |
| 3637 | Estate Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2011 |
| 3638 | Estes And Company LLC. | Perryton, TX 79070 | Oil & Gas Operator | Jul 2025 |
| 3639 | Estes Operating, Inc. | San Antonio, TX 78210 | Oil & Gas Operator | Mar 2002 |
| 3640 | Estes Operating, LLC | La Porte, TX 77571 | Oil & Gas Operator | Jul 2025 |
| 3641 | Estoril Producing Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 3642 | Et Gathering & Processing LLC | Dallas, TX 75225 | Oil Operator | Dec 2024 |
| 3643 | Etc Field Services LLC | San Antonio, TX 78258 | Oil Operator | Jun 2018 |
| 3644 | Etc Oil Co. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2004 |
| 3645 | Etc Texas Pipeline, LTD. | Dallas, TX 75225 | Oil Operator | Sep 2023 |
| 3646 | Etl Hydrocarbons, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Jul 2025 |
| 3647 | Etm Operating Company, Inc. | Houston, TX 77079 | Oil Operator | Feb 2009 |
| 3648 | Etoco Incorporated | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 3649 | Etoco, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 3650 | Etopsi Oil And Gas, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 3651 | Etos Operating, Inc. | New London, TX 75682 | Oil & Gas Operator | Jul 2025 |
| 3652 | Ettco Enterprises, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 3653 | Etx Energy, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2022 |
| 3654 | Eubank, Robert B. & B. K. | Spring, TX 77388 | Oil & Gas Operator | Mar 2008 |
| 3655 | Eureka Gas Co, Inc | Pikeville, KY 41502 | Gas Operator | Dec 2010 |
| 3656 | Eureka Prospecting Company | Wimberley, TX 78676 | Oil & Gas Operator | Jun 2023 |
| 3657 | European-Southwest Co. | Houston, TX 77254 | Oil & Gas Operator | Jul 2025 |
| 3658 | Eurotex Royalty, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Aug 2003 |
| 3659 | Eurovest Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 3660 | Ev Fleming Enterprises, LLC | Kilgore, TX 75662 | Oil & Gas Operator | Aug 2024 |
| 3661 | Evangeline Trading Company | Ballinger, TX 76821 | Oil & Gas Operator | Jul 2025 |
| 3662 | Evans Production Co. | Pampa, TX 79066 | Oil & Gas Operator | Sep 2020 |
| 3663 | Evans, Carl N. | Graham, TX 76450 | Oil & Gas Operator | Feb 2001 |
| 3664 | Evans, Julian | Houston, TX 77024 | Oil & Gas Operator | Nov 1995 |
| 3665 | Evans, Ralph | San Antonio, TX 78209 | Oil & Gas Operator | Jan 2011 |
| 3666 | Evans, S. Lavon Jr. Oper. Co. | Laurel, MS 39442 | Oil & Gas Operator | Jul 2025 |
| 3667 | Evantech Energy Corp. | Fort Worth, TX 76120 | Oil & Gas Operator | Apr 1995 |
| 3668 | Evarado Oil Company | Strawn, TX 76475 | Oil & Gas Operator | Jul 2025 |
| 3669 | Evarado Oil, LLC | Strawn, TX 76475 | Oil & Gas Operator | Jul 2025 |
| 3670 | Everest Minerals Corp. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Apr 2001 |
| 3671 | Everest Network LLC | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 3672 | Everest Resource Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Jul 2025 |
| 3673 | Everett Oil | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2015 |
| 3674 | Everett Oil, Inc. | San Antonio, TX 78258 | Oil Operator | Jul 2025 |
| 3675 | Everett, Joe Mack | Throckmorton, TX 76483 | Oil & Gas Operator | Jul 2025 |
| 3676 | Evergreen Energy, Inc | Houston, TX 77098 | Oil & Gas Operator | Jul 2025 |
| 3677 | Evergreen Operating Co., LTD. | McAllen, TX 78502 | Oil & Gas Operator | Jul 2025 |
| 3678 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 3679 | Everquest Energy Corporation | Fredericksbrg, TX 78624 | Oil & Gas Operator | Jul 2025 |
| 3680 | Evinger, Ernest E. | Midland, TX 79705 | Oil & Gas Operator | Mar 2002 |
| 3681 | Evolution Operating Co., Inc. | Houston, TX 77079 | Oil & Gas Operator | Jul 2025 |
| 3682 | Evolution Resources, LLC | Houston, TX 77070 | Oil & Gas Operator | Jul 2025 |
| 3683 | Ewt Operating Company | Andrews, TX 79714 | Oil & Gas Operator | Jul 2025 |
| 3684 | Ex-Cel Resources, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 3685 | Exaro Energy II, LLC | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 3686 | Excalibur E & P, LLC | Johnson City, TX 78636 | Oil & Gas Operator | Jul 2025 |
| 3687 | Exceed Petroleum LLC | Houston, TX 77070 | Oil & Gas Operator | Jul 2025 |
| 3688 | Excel Energy Co. | Coahoma, TX 79511 | Oil & Gas Operator | Jul 2025 |
| 3689 | Excel Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 3690 | Excel Oil & Gas, Inc. | Waxahachie, TX 75168 | Oil & Gas Operator | Jul 2025 |
| 3691 | Excelco Energy Inc. | Kingwood, TX 77339 | Oil & Gas Operator | Jul 2018 |
| 3692 | Exchange Avenue Production Co. | Weatherford, TX 76086 | Oil & Gas Operator | Sep 2021 |
| 3693 | Exchange Exploration & Production Co. | Dallas, TX 75219 | Oil & Gas Operator | May 2025 |
| 3694 | Exchange Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1987 |
| 3695 | Exco Operating Company, LP | Dallas, TX 75251 | Oil & Gas Operator | Jul 2025 |
| 3696 | Exco Partners Operating PTSHP LP | Dallas, TX 75251 | Oil & Gas Operator | Jan 2009 |
| 3697 | Exco Production Company, LP | Dallas, TX 75251 | Oil & Gas Operator | Dec 2009 |
| 3698 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Apr 2025 |
| 3699 | Exco/Hgi JV Assets, LLC | Dallas, TX 75251 | Oil & Gas Operator | Jun 2014 |
| 3700 | Executive Production, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Jul 2025 |