| 17401 | M4 Energy, LLC | Watsontown, PA 17777-1133 | Oil & Gas Operator | Dec 2025 |
| 17402 | M5oexit, LLC | Pampa, TX 79066 | Oil & Gas Operator | Jun 2026 |
| 17403 | M7 Resources LLC | Santa Fe, NM 87505 | Oil Operator | Oct 2025 |
| 17404 | Ma-Si, Inc. | | Oil & Gas Operator | May 1998 |
| 17405 | Mac 5 Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Feb 2021 |
| 17406 | Mac Engineering & Operating Co | | Oil & Gas Operator | May 2005 |
| 17407 | Mac Oil Field Service Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2025 |
| 17408 | Mac Operating | Graham, TX 76450 | Oil & Gas Operator | Jun 2023 |
| 17409 | Mace, T. A. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2008 |
| 17410 | Macfarlan Oil And Gas, LLC | Ellenboro, WV 26346-0058 | Oil & Gas Operator | Dec 2021 |
| 17411 | Mach Petroleum, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | Nov 2014 |
| 17412 | Macha Enterprises, Inc. | Wichita Falls, TX 76309 | Oil Operator | Jun 2026 |
| 17413 | Machii-Ross Petroleum Co | | Oil & Gas Operator | Apr 2014 |
| 17414 | Machin & Associates, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jun 2026 |
| 17415 | Macina, P.T. | Shamrock, TX 79079 | Gas Operator | Jun 2026 |
| 17416 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Mar 2026 |
| 17417 | Mack Energy Comp | | Oil & Gas Operator | Nov 1994 |
| 17418 | Mack Energy Corporation | Artesia, NM 88211 | Oil & Gas Operator | Apr 2026 |
| 17419 | Mack Oil Company | Duncan, OK 73534 | Oil & Gas Operator | Nov 2000 |
| 17420 | Mack Oil Corp | | Oil & Gas Operator | Nov 1998 |
| 17421 | Mack Oil Corp And Delta Oil Co Inc Great Lakes Nia | | Oil & Gas Operator | Feb 1986 |
| 17422 | Mack Oil Corp And Neyer Oil Inc | | Oil & Gas Operator | May 1988 |
| 17423 | Mackellar Inc | Oklahoma City, OK 73116-7101 | Oil & Gas Operator | Mar 2026 |
| 17424 | Mackenco Inc | Columbus, OH 43235 | Oil & Gas Operator | Dec 2020 |
| 17425 | Mackey Consulting & Leasing LLC | Cleveland, OK 74020 | Oil & Gas Operator | Mar 2026 |
| 17426 | Mackinaw Two, LLC | | Oil & Gas Operator | May 2020 |
| 17427 | Maclane Gas Company L.P. | Corpus Chrsti, TX 78478 | Oil & Gas Operator | Mar 1994 |
| 17428 | Macmart Inc | Wynnewood, OK 73098 | Oil & Gas Operator | Jan 2016 |
| 17429 | Macnichols, Jennifer | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 17430 | Maco Incorporate | | Oil Operator | Jun 1984 |
| 17431 | Macpherson Oil Company LLC | | Oil & Gas Operator | Feb 2026 |
| 17432 | Macpherson Operating Company L.P. | | Oil & Gas Operator | Mar 2026 |
| 17433 | Macro Oil Company | Bartlesville, OK 74006 | Oil Operator | Aug 1999 |
| 17434 | Macum Energy Inc | Billings, MT 59104 | Oil & Gas Operator | Aug 2021 |
| 17435 | Mad Dog Oil Co. | | Oil Operator | Mar 2016 |
| 17436 | Mad Operators LLC | | Oil & Gas Operator | Feb 2026 |
| 17437 | Madco Energy Corp | Logan, OH 43138 | Oil & Gas Operator | Dec 1987 |
| 17438 | Maddox Energy Corp | Dallas, TX BAD ADDR | Oil & Gas Operator | Jul 1995 |
| 17439 | Maddox Oil & Gas, Inc. | | Oil Operator | Apr 1983 |
| 17440 | Maddox Operating | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 17441 | Maddux Oil & Gas | Strawn, TX 76475 | Oil & Gas Operator | Jun 2026 |
| 17442 | Maddux, Elizabeth H. | San Antonio, TX 78217 | Oil & Gas Operator | Nov 1995 |
| 17443 | Madera, R. F. | Palm Desert, CA 92210 | Oil & Gas Operator | Sep 2000 |
| 17444 | Madison And Wright LLC | The Colony, TX 75056 | Oil & Gas Operator | Jun 2026 |
| 17445 | Madison Brothers Investment, LLC | Brownsville, KY 42210 | Oil & Gas Operator | Dec 2023 |
| 17446 | Madison Mark T | Marienville, PA 16239-6029 | Oil & Gas Operator | Dec 2012 |
| 17447 | Madison Oil Co.-Halbouty, M. T. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 17448 | Madison Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 17449 | Madtick Dev Corp | Punxsutawney, PA 15767-0140 | Oil & Gas Operator | Dec 2024 |
| 17450 | Maersk Energy Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 1994 |
| 17451 | Maertins Production, LLC | Queen City, TX 75572 | Oil Operator | Jun 2026 |
| 17452 | Magaw & Zimmer | Perry, OK 73077-1055 | Oil & Gas Operator | Aug 2013 |
| 17453 | Magellan E&P Holdings, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2021 |
| 17454 | Magellan Exploration Co LTD | Bethany, OK 73008-0909 | Oil & Gas Operator | Jun 2014 |
| 17455 | Maggard Joe | Mannford, OK 74044 | Oil & Gas Operator | May 2023 |
| 17456 | Maggard Oil Co Inc | Manford, OK 74044 | Oil & Gas Operator | Sep 1997 |
| 17457 | Maggard Supply & Oil Company | Mannford, OK 74044-1407 | Oil & Gas Operator | Nov 2014 |
| 17458 | Maggard VIrginia J | Mannford, OK 74044-3027 | Oil Operator | Mar 2026 |
| 17459 | Magic Circle Energy | Oklahoma City, OK 73185 | Oil & Gas Operator | Dec 1983 |
| 17460 | Magic City Oil & Gas | Amarillo, TX 79109 | Oil & Gas Operator | Jun 2026 |
| 17461 | Magic Investments LLC | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 17462 | Magic Oil & Gas Inc. | Houston, TX 77079 | Oil & Gas Operator | Jan 2001 |
| 17463 | Magma Resources LLC | Paoli, OK 73074 | Oil & Gas Operator | Apr 2025 |
| 17464 | Magna Diversified Group, Inc. | Jacksonville, TX 75766 | Oil & Gas Operator | Oct 2013 |
| 17465 | Magna Oil & Gas Corporation | Irving, TX 75017 | Oil & Gas Operator | Feb 2016 |
| 17466 | Magna Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2026 |
| 17467 | Magnatex Corp | Midland, TX 79702-1311 | Oil & Gas Operator | Feb 1995 |
| 17468 | Magnatex Petrole | | Oil Operator | Jun 1994 |
| 17469 | Magnatex Petroleum | | Oil Operator | Apr 1993 |
| 17470 | Magness Petroleum Company | | Oil & Gas Operator | Dec 1994 |
| 17471 | Magnet Oil LP | Bronte, TX 76933 | Oil & Gas Operator | Jun 2026 |
| 17472 | Magnolia Oil & Gas Operating LLC | Houston, TX 77046 | Oil & Gas Operator | Jun 2026 |
| 17473 | Magnolia Petroleum Inc | Tulsa, OK 74106-2433 | Oil Operator | Jun 2018 |
| 17474 | Magnolia Production Co | Atlanta, TX 75551 | Oil & Gas Operator | Jun 2026 |
| 17475 | Magnolia Production Company LLC | | Oil & Gas Operator | Nov 2024 |
| 17476 | Magnum DRLG Of Ohio, Inc | Ashland, KY 41102 | Oil & Gas Operator | Dec 2024 |
| 17477 | Magnum Energy Inc | Norman, OK 73072-2403 | Oil & Gas Operator | Mar 2026 |
| 17478 | Magnum Engineering Company | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 17479 | Magnum Exploration Kansas, LLC | Lipan, TX 76462 | Oil Operator | Oct 2016 |
| 17480 | Magnum Gas Pipeline, L.L.C. | | Oil Operator | Dec 2024 |
| 17481 | Magnum Hunter Production, Inc. | Irving, TX 75014 | Oil & Gas Operator | Dec 2019 |
| 17482 | Magnum Hunter Resources Corporation | | Oil & Gas Operator | Nov 2019 |
| 17483 | Magnum Minerals, Inc. | | Oil & Gas Operator | May 1998 |
| 17484 | Magnum Oil & Gas | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2000 |
| 17485 | Magnum Oil, LLC | Hartford, KY 42347 | Oil Operator | Dec 2023 |
| 17486 | Magnum Oilfield Services LLC | Bakersfield, CA 93309 | Oil Operator | Jun 2026 |
| 17487 | Magnum Operating, LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 17488 | Magnum Petroleum, Inc. | Palm Desert, CA 92260 | Oil & Gas Operator | Nov 2013 |
| 17489 | Magnum Producing & Operating Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jan 2004 |
| 17490 | Magnum Producing, LP | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 17491 | Magnum Production & Well Service | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2026 |
| 17492 | Magnusson Karl E | | Oil Operator | Apr 1987 |
| 17493 | Magpie Operating, Inc | | Oil & Gas Operator | Feb 2026 |
| 17494 | Magruder '81, LTD. | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 17495 | Magruder, Edwin H., Jr. | Midland, TX 79701 | Oil & Gas Operator | Oct 2019 |
| 17496 | Maguire James Q Inc | Norman, OK 73070-1748 | Oil & Gas Operator | Feb 2026 |
| 17497 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 17498 | Maha Energy Us Inc | | Oil Operator | Nov 2023 |
| 17499 | Mahan, Janet L | | Oil & Gas Operator | Mar 2026 |
| 17500 | Mahfouz Energy Company | Houston, TX 77255 | Oil & Gas Operator | Nov 2020 |