| 7401 | Miller, Mike | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 7402 | Miller, Mike / Miller Prod. Co. | Corsicana, TX 75110 | Oil & Gas Operator | Feb 2026 |
| 7403 | Miller, R. A. Energy, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2003 |
| 7404 | Miller, Rex M. | Putnam, TX 76469 | Oil & Gas Operator | Sep 2022 |
| 7405 | Miller, W. C. Operating Company | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2026 |
| 7406 | Mills Oil & Gas | Jacksboro, TX 76458 | Oil & Gas Operator | Mar 2008 |
| 7407 | Mills, H. E. | Lipan, TX 76462 | Oil & Gas Operator | Sep 2004 |
| 7408 | Mills, Jay | Stephenville, TX 76401 | Gas Operator | Apr 2022 |
| 7409 | Mills, Pete | Midland, TX 79707 | Oil & Gas Operator | Sep 2005 |
| 7410 | Millwee Oil, Inc. | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 7411 | Millwee, John F. | Midland, TX 79705 | Oil & Gas Operator | Jul 2018 |
| 7412 | Milo-Austintatious | Houston, TX 77005 | Oil & Gas Operator | Aug 2006 |
| 7413 | Miltex Oil Company | Boerne, TX 78006 | Oil & Gas Operator | Feb 2026 |
| 7414 | Milton Oil & Gas Company | Charleston, WV 25322 | Gas Operator | Nov 1997 |
| 7415 | Miltuck Operating, Inc. | Elysian Field, TX 75642 | Oil & Gas Operator | Dec 1996 |
| 7416 | Mims, William S. | Pleasanton, TX 78064 | Oil Operator | Jun 2009 |
| 7417 | Min-Tex Oil Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Dec 1996 |
| 7418 | Mina Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2012 |
| 7419 | Minco Oil And Gas Co. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2024 |
| 7420 | Miner, R. C. Inc. | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Apr 2002 |
| 7421 | Miner, R. C. Oil, Inc. | MC Queeney, TX 78123 | Oil & Gas Operator | Feb 2026 |
| 7422 | Mineral Development, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 1996 |
| 7423 | Mineral Resources, Incorporated | Lewisville, TX 75029 | Oil & Gas Operator | Feb 2026 |
| 7424 | Mineral Technologies, Inc. | Midland, TX 79704 | Oil & Gas Operator | Feb 2026 |
| 7425 | Minexprod LLC | Katy, TX 77494 | Oil Operator | Feb 2026 |
| 7426 | Mingus Oil & Gas | Mingus, TX 76463 | Oil & Gas Operator | Feb 2026 |
| 7427 | Minihan Oil & Gas Corporation | Midland, TX 79704 | Oil & Gas Operator | Apr 2004 |
| 7428 | Minihan Oil & Gas LTD. | Denver, CO 80202 | Oil & Gas Operator | Jul 2006 |
| 7429 | Mink, Jay, Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Aug 2017 |
| 7430 | Minton Oil & Gas Properties | Graford, TX 76449 | Gas Operator | Feb 2026 |
| 7431 | Minuja Oil And Gas LLC | Corpus Christi, TX 78401 | Oil & Gas Operator | Sep 1996 |
| 7432 | Minute Hand LLC | Brenham, TX 77834 | Oil & Gas Operator | Feb 2026 |
| 7433 | Minuteman Energy, LLC | Georgetown, TX 78633 | Oil & Gas Operator | Feb 2015 |
| 7434 | Minyak Producing Company, Inc. | Sabine Pass, TX 77655 | Oil & Gas Operator | Feb 2026 |
| 7435 | Miocene Oil & Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jul 1998 |
| 7436 | Miocene Oil & Gas, LTD. | Englewood, CO 80110 | Oil & Gas Operator | Feb 2026 |
| 7437 | Mir-Tex Energy Corp. | Mirando City, TX 78369 | Oil & Gas Operator | Aug 2003 |
| 7438 | Miramar Petroleum, Inc. | Corpus Chrsti, TX 78463 | Oil & Gas Operator | Sep 2017 |
| 7439 | Miranda Energy Corporation | Midland, TX 79705 | Oil & Gas Operator | Jun 2016 |
| 7440 | Mirando Crude Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Jul 1994 |
| 7441 | Mirando Resource, L.L.C. | Freer, TX 78357 | Oil & Gas Operator | Feb 2026 |
| 7442 | Miresco, Inc. | Houston, TX 77060 | Oil & Gas Operator | Jan 1995 |
| 7443 | Misener Operating, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2010 |
| 7444 | Mission Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 7445 | Mission Exploration, Inc. | Fate, TX 75132 | Oil & Gas Operator | Dec 1987 |
| 7446 | Mission Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 7447 | Mission River Systems, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Feb 2026 |
| 7448 | Mississippi Ventures, Inc. | Granbury, TX 76048 | Gas Operator | Jul 1997 |
| 7449 | Mist Prod. & Exploration Corp. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 7450 | Mistex Operating, Inc. | Lewisville, TX 75029 | Oil & Gas Operator | Feb 2026 |
| 7451 | Mitchell Drilling Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 7452 | Mitchell Ehrlich Oil & Gas, LLC | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 7453 | Mitchell Energy Company L.P. | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 7454 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 7455 | Mitchell Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 2000 |
| 7456 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 7457 | Mitchell, James - Operator | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2008 |
| 7458 | Mito Resources TX LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 7459 | Mitsui E&P USA LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 7460 | Mixon, Robert N. | Lometa, TX 76853 | Oil & Gas Operator | Feb 2026 |
| 7461 | MJ Energy Company, LLC | Kilgore, TX 75663 | Oil Operator | Feb 2026 |
| 7462 | MJ Oil, Inc. | Houston, TX 77265 | Oil & Gas Operator | Feb 2026 |
| 7463 | MJB Oil Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 7464 | MJB Production Company, Inc. | Brownfield, TX 79316 | Oil & Gas Operator | Feb 2026 |
| 7465 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 7466 | MK Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Jun 2014 |
| 7467 | MK Operating Company LLC | Cedar Park, TX 78613 | Oil & Gas Operator | Feb 2026 |
| 7468 | MKS Consulting Corporation | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2005 |
| 7469 | MKS Natural Gas Company | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2016 |
| 7470 | ML Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 7471 | MLB Operating Services, LLC | Tenn Colony, TX 75861 | Oil & Gas Operator | Feb 2026 |
| 7472 | MLC Co., Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 1996 |
| 7473 | MLC Operating, LP | Houston, TX 77063 | Oil & Gas Operator | Feb 2026 |
| 7474 | MLF, Inc. | Houston, TX 77096 | Gas Operator | Nov 2009 |
| 7475 | MM China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Feb 2026 |
| 7476 | MMD Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Dec 2000 |
| 7477 | MMG Oil Company | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2006 |
| 7478 | MMGL East Texas II, LLC | Dallas, TX 75240 | Oil & Gas Operator | Feb 2026 |
| 7479 | MMGL East Texas III, LLC | Dallas, TX 75240 | Oil & Gas Operator | Feb 2026 |
| 7480 | MMGL TXPH, LLC | Dallas, TX 75240 | Oil & Gas Operator | Feb 2026 |
| 7481 | Mna Enterprises LTD. Co. | Hobbs, NM 88242 | Oil & Gas Operator | Dec 2025 |
| 7482 | Mo-Jon, Inc. | Edroy, TX 78352 | Oil & Gas Operator | May 1999 |
| 7483 | Mobeetie Resource Dev LLC | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 7484 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 7485 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Feb 2026 |
| 7486 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 7487 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 7488 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 7489 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Feb 2026 |
| 7490 | Mockingbird Oil, Inc. (I) | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 7491 | Modena Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 7492 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Feb 2026 |
| 7493 | Moenning, Vernie | Electra, TX 76360 | Oil & Gas Operator | Aug 2025 |
| 7494 | Mog Energy LLC | Tyler, TX 75701 | Oil Operator | Feb 2026 |
| 7495 | Mogul Energy International, Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 2017 |
| 7496 | Mogul Operating LLC | St Petersburg, FL 33706 | Oil Operator | Feb 2026 |
| 7497 | Mogul Resources, LLC | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 7498 | Mohican Exploration, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2024 |
| 7499 | Mohican Oil & Gas, L.L.C. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2013 |
| 7500 | Mohican Operating, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2021 |