| 3401 | Ellora Operating, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 3402 | Ellstrom Energy Company | Kingwood, TX 77339 | Oil & Gas Operator | Nov 2000 |
| 3403 | Ellsworth, H. P. O&G Properties | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Nov 2024 |
| 3404 | Elm Grove Production, LLC | Dallas, TX 75360 | Oil & Gas Operator | Nov 2024 |
| 3405 | Elms Oil Company | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 3406 | Elp Production Company LLC | Dallas, TX 75287 | Oil Operator | Nov 2024 |
| 3407 | Elson Oil Company | Tulsa, OK 74103-4429 | Oil & Gas Operator | Dec 2016 |
| 3408 | Em-Gee Oil Account | Jacksonville, TX 75766 | Oil & Gas Operator | Sep 1995 |
| 3409 | Embassy Oil Company | Highland VLG, TX 75077 | Oil & Gas Operator | Nov 2024 |
| 3410 | Embassy Well Service, LLC | Carrollton, TX 75011 | Oil & Gas Operator | Nov 2024 |
| 3411 | Embrey Oil Production Co. | Sutherlnd SPG, TX 78161 | Oil & Gas Operator | Oct 2021 |
| 3412 | Emco Oil & Gas | Graham, TX 76450 | Oil & Gas Operator | Dec 1995 |
| 3413 | Emco Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2002 |
| 3414 | Emerald Bay Energy, Inc. | San Antonio, TX 78230 | Oil Operator | Nov 2024 |
| 3415 | Emerald Gather And Trans, LLC | Cypress, TX 77429 | Oil & Gas Operator | Nov 2024 |
| 3416 | Emerald Oil & Gas LC | Fort Worth, TX 76109 | Oil & Gas Operator | Nov 2024 |
| 3417 | Emerald Operating Company | Plano, TX 75075 | Oil & Gas Operator | Sep 2024 |
| 3418 | Emerald Petroleum Corporation | Dallas, TX 75244 | Oil & Gas Operator | Apr 2002 |
| 3419 | Emerald Production Company | Midland, TX 79702 | Oil & Gas Operator | Jun 1995 |
| 3420 | Emerson Oil Company | Rindge, NH 03461 | Oil & Gas Operator | Feb 2008 |
| 3421 | Eminent Oil & Gas, Inc. | Houston, TX 77077 | Oil & Gas Operator | Nov 2024 |
| 3422 | Emlou Oil Co. | Atascosa, TX 78002 | Oil & Gas Operator | Jul 2011 |
| 3423 | Empire Exploration Corp. 1989 | Lebanon, MO 65536 | Oil & Gas Operator | Mar 2003 |
| 3424 | Empire Oil & Gas Co. | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2017 |
| 3425 | Empire Oil Company | Coppell, TX 75019 | Oil & Gas Operator | Nov 2024 |
| 3426 | Empire Oil Of New Jersey | Post, TX 79356 | Oil & Gas Operator | Jan 1999 |
| 3427 | Empire Operating, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2017 |
| 3428 | Empire Texas Operating LLC | Tulsa, OK 74114 | Oil & Gas Operator | Nov 2024 |
| 3429 | Empresa Energy, LP | Houston, TX 77024 | Oil & Gas Operator | Jul 2009 |
| 3430 | En Geo, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Nov 2024 |
| 3431 | Enable Midstream Partners, LP | Oklahoma City, OK 73124 | Oil Operator | Sep 2023 |
| 3432 | Enbridge G & P (East Texas) L.P. | Houston, TX 77056 | Oil & Gas Operator | Sep 2018 |
| 3433 | Enbridge Pipelines (Ne Texas) LP | Houston, TX 77002 | Oil & Gas Operator | Jan 2010 |
| 3434 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
| 3435 | Encina Resources, LLC | Houston, TX 77251 | Oil & Gas Operator | Nov 2024 |
| 3436 | Encino Exploration, Inc. | George West, TX 78022 | Oil & Gas Operator | Nov 2024 |
| 3437 | Encino Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2024 |
| 3438 | Enco Exploration Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2020 |
| 3439 | Enco Resources Inc. | Kingwood, TX 77325 | Oil & Gas Operator | Nov 2024 |
| 3440 | Encon Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Nov 2024 |
| 3441 | Encore Energy Partners Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2015 |
| 3442 | Encore Energy, Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2015 |
| 3443 | Encore Operating Company | Denver, CO 80227 | Oil & Gas Operator | Jul 2024 |
| 3444 | Encore Operating LP | Plano, TX 75024 | Oil & Gas Operator | Sep 2024 |
| 3445 | Encore Permian Operating, LLC | Uvalde, TX 78801 | Oil & Gas Operator | Nov 2024 |
| 3446 | Encrescent, LLC | Dallas, TX 75205 | Oil & Gas Operator | Nov 2024 |
| 3447 | Endeavor Energy Resources, LP | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 3448 | Endeavor Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2015 |
| 3449 | Endeavor Natural Gas, LP | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 3450 | Endeavor Production Company | San Angelo, TX 76904 | Oil & Gas Operator | Mar 2008 |
| 3451 | Enderli Oil Company, Inc | Highlands, TX 77562 | Oil & Gas Operator | Aug 2003 |
| 3452 | Endurance Oil & Gas, Inc. | Minden, LA 71055 | Oil & Gas Operator | Nov 2024 |
| 3453 | Endurance Resources III Operating , LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 3454 | Endurance Resources LLC | Addison, TX 75001 | Oil & Gas Operator | Apr 2017 |
| 3455 | Enduring Resources, LLC | Greenwood VLG, CO 80111 | Oil & Gas Operator | Sep 2024 |
| 3456 | Enduro Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2018 |
| 3457 | Enercap Corporation | Kingwood, TX 77325 | Oil & Gas Operator | Aug 2003 |
| 3458 | Enercorp Resources, Inc. | Houston, TX 77027 | Oil & Gas Operator | Dec 1993 |
| 3459 | Enerdril Corporation | Moran, TX 76464 | Gas Operator | Dec 2015 |
| 3460 | Enerex Supply, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Nov 1993 |
| 3461 | Enerfin Field Services LLC | Houston, TX 77077 | Oil Operator | Jun 2024 |
| 3462 | Enerfin Resources II-92 L.P. | Houston, TX 77077 | Oil & Gas Operator | Nov 2024 |
| 3463 | Energen Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2021 |
| 3464 | Energen Resources Maq Inc | Birmingham, AL 35203 | Oil & Gas Operator | Sep 2000 |
| 3465 | Energetics Inc | Englewood, CO 80155 | Oil & Gas Operator | Aug 1985 |
| 3466 | Energex Corp | Springfield, MO 65807 | Oil & Gas Operator | Sep 2024 |
| 3467 | Energex Inc. | Abilene, TX 79604 | Oil & Gas Operator | Nov 2024 |
| 3468 | Energon Oil & Gas Inc. | Odessa, TX 79762 | Oil & Gas Operator | Aug 2003 |
| 3469 | Energon Oil, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Nov 2024 |
| 3470 | Energon3 | Rowlett, TX 75089 | Oil Operator | Nov 2024 |
| 3471 | Energy & Expl. PRTNRS Oper., LP | Fort Worth, TX 76147 | Oil & Gas Operator | Oct 2016 |
| 3472 | Energy + Savings, L.L.C. | Alamo, TX 78516 | Oil & Gas Operator | Jan 2008 |
| 3473 | Energy 2000, Inc. | Reno, NV 89501 | Oil & Gas Operator | Nov 2024 |
| 3474 | Energy Acquisitions, Inc. | Spring, TX 77379 | Oil & Gas Operator | Apr 1996 |
| 3475 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2022 |
| 3476 | Energy Development Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2023 |
| 3477 | Energy Equity Company | Columbus, MT 59019 | Oil & Gas Operator | Sep 2024 |
| 3478 | Energy From Texas, L. P. | Dallas, TX 75230 | Oil & Gas Operator | Dec 2013 |
| 3479 | Energy Frontiers Partners, LP | Grapevine, TX 76051 | Oil Operator | May 2008 |
| 3480 | Energy Group Of America, Inc. | Hollister, MO 65672 | Oil Operator | Nov 2024 |
| 3481 | Energy Hunter Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Feb 2019 |
| 3482 | Energy Management Company | Kilgore, TX 75663 | Oil Operator | Apr 2020 |
| 3483 | Energy Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Nov 2024 |
| 3484 | Energy Onramp LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 3485 | Energy Partners, LTD. | New Orleans, LA 70170 | Oil & Gas Operator | Aug 2012 |
| 3486 | Energy Production Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 3487 | Energy Reserves Group | Houston, TX 770563020 | Oil & Gas Operator | Apr 1996 |
| 3488 | Energy Reserves Group LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 3489 | Energy Resource & Develop., Corp | Rockwall, TX 75087 | Oil & Gas Operator | Jun 1998 |
| 3490 | Energy Resource Management, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2008 |
| 3491 | Energy Resource Recovery Corp | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 3492 | Energy Resources Oil & Gas Corp. | Amarillo, TX 79102 | Oil & Gas Operator | Jun 1994 |
| 3493 | Energy Search Company Inc | Aurora, CO 80011 | Oil & Gas Operator | Jun 2021 |
| 3494 | Energy Service Investment Corp. | Tulsa, OK 74137 | Oil & Gas Operator | May 2006 |
| 3495 | Energy Transfer Fuel, LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 3496 | Energypro, Inc. | Magnolia, TX 77354 | Oil & Gas Operator | Nov 2024 |
| 3497 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2024 |
| 3498 | Energyquest Management, LLC | Houston, TX 77090 | Oil & Gas Operator | Apr 2021 |
| 3499 | Enerquest Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 3500 | Enerquest Oil & Gas LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Aug 2024 |