| 17501 | Machii-Ross Petroleum Co | | Oil & Gas Operator | Apr 2014 |
| 17502 | Machin & Associates, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 2024 |
| 17503 | Macina, P.T. | Shamrock, TX 79079 | Gas Operator | Sep 2024 |
| 17504 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2024 |
| 17505 | Mack Energy Comp | | Oil & Gas Operator | Nov 1994 |
| 17506 | Mack Energy Corporation | Artesia, NM 88211 | Oil & Gas Operator | Jul 2024 |
| 17507 | Mack Oil Company | Duncan, OK 73534 | Oil & Gas Operator | Nov 2000 |
| 17508 | Mack Oil Corp | | Oil & Gas Operator | Nov 1998 |
| 17509 | Mack Oil Corp And Delta Oil Co Inc Great Lakes Nia | | Oil & Gas Operator | Feb 1986 |
| 17510 | Mack Oil Corp And Neyer Oil Inc | | Oil & Gas Operator | May 1988 |
| 17511 | Mackellar Inc | Oklahoma City, OK 73116-7101 | Oil & Gas Operator | Jul 2024 |
| 17512 | Mackenco Inc | Columbus, OH 43235 | Oil & Gas Operator | Dec 2020 |
| 17513 | Mackey Consulting & Leasing LLC | Cleveland, OK 74020 | Oil & Gas Operator | Jun 2024 |
| 17514 | Mackinaw Two, LLC | | Oil & Gas Operator | May 2020 |
| 17515 | Maclane Gas Company L.P. | Corpus Chrsti, TX 78478 | Oil & Gas Operator | Mar 1994 |
| 17516 | Macmart Inc | Wynnewood, OK 73098 | Oil & Gas Operator | Jan 2016 |
| 17517 | Maco Incorporate | | Oil Operator | Jun 1984 |
| 17518 | Macpherson Oil Company | | Oil & Gas Operator | Jun 2024 |
| 17519 | Macpherson Operating Company L.P. | | Oil & Gas Operator | Jun 2024 |
| 17520 | Macquarie Longview Acquisitions, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2008 |
| 17521 | Macro Oil Company | Bartlesville, OK 74006 | Oil Operator | Aug 1999 |
| 17522 | Macum Energy Inc | Billings, MT 59104 | Oil & Gas Operator | Aug 2021 |
| 17523 | Mad Dog Oil Co. | | Oil Operator | Mar 2016 |
| 17524 | Madco Energy Corp | Logan, OH 43138 | Oil & Gas Operator | Dec 1987 |
| 17525 | Maddox Energy Corporation | Dallas, TX BAD ADDR | Oil & Gas Operator | Jul 1995 |
| 17526 | Maddox Oil & Gas, Inc. | | Oil Operator | Apr 1983 |
| 17527 | Maddox Operating | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2024 |
| 17528 | Maddux Oil & Gas | Strawn, TX 76475 | Oil & Gas Operator | Sep 2024 |
| 17529 | Maddux, Elizabeth H. | San Antonio, TX 78217 | Oil & Gas Operator | Nov 1995 |
| 17530 | Madison And Wright LLC | The Colony, TX 75056 | Oil & Gas Operator | Sep 2024 |
| 17531 | Madison Brothers Investment, LLC | Brownsville, KY 42210 | Oil & Gas Operator | Dec 2019 |
| 17532 | Madison Mark T | Marienville, PA 16239-6029 | Oil & Gas Operator | Dec 2012 |
| 17533 | Madison Oil Co.-Halbouty, M. T. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 17534 | Madison Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1998 |
| 17535 | Madtick Dev Corp | Punxsutawney, PA 15767-1179 | Oil & Gas Operator | Dec 2023 |
| 17536 | Maersk Energy Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 1994 |
| 17537 | Maertins Production, LLC | Queen City, TX 75572 | Oil Operator | Sep 2024 |
| 17538 | Magaw & Zimmer | Perry, OK 73077-1055 | Oil & Gas Operator | Aug 2013 |
| 17539 | Magellan E&P Holdings, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2021 |
| 17540 | Magellan Exploration Co LTD | Bethany, OK 73008-0909 | Oil & Gas Operator | Jun 2014 |
| 17541 | Maggard Joe | Mannford, OK 74044-9610 | Oil & Gas Operator | May 2023 |
| 17542 | Maggard Oil Co Inc | Manford, OK 74044 | Oil & Gas Operator | Sep 1997 |
| 17543 | Maggard Supply & Oil Company | Mannford, OK 74044-1407 | Oil & Gas Operator | Nov 2014 |
| 17544 | Maggard VIrginia J | Mannford, OK 74044-3027 | Oil Operator | Jun 2024 |
| 17545 | Magic Circle Energy | Oklahoma City, OK 73185 | Oil & Gas Operator | Dec 1983 |
| 17546 | Magic City Oil & Gas | Amarillo, TX 79109 | Oil & Gas Operator | Sep 2024 |
| 17547 | Magic Investments LLC | Edmond, OK 73013-1688 | Oil & Gas Operator | May 2024 |
| 17548 | Magic Oil & Gas Inc. | Houston, TX 77079 | Oil & Gas Operator | Jan 2001 |
| 17549 | Magma Resources LLC | Paoli, OK 73074 | Oil & Gas Operator | Jun 2024 |
| 17550 | Magna Diversified Group, Inc. | Jacksonville, TX 75766 | Oil & Gas Operator | Oct 2013 |
| 17551 | Magna Oil & Gas Corporation | Irving, TX 75017 | Oil & Gas Operator | Feb 2016 |
| 17552 | Magna Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
| 17553 | Magnatex Corp | Midland, TX 79702-1311 | Oil & Gas Operator | Feb 1995 |
| 17554 | Magnatex Petrole | | Oil Operator | Jun 1994 |
| 17555 | Magnatex Petroleum | | Oil Operator | Apr 1993 |
| 17556 | Magness Petroleum Company | | Oil & Gas Operator | Dec 1994 |
| 17557 | Magnet Oil LP | Bronte, TX 76933 | Oil & Gas Operator | Sep 2024 |
| 17558 | Magnolia Oil & Gas Operating LLC | Houston, TX 77046 | Oil & Gas Operator | Sep 2024 |
| 17559 | Magnolia Petroleum Inc | Tulsa, OK 74106-2433 | Oil Operator | Jun 2018 |
| 17560 | Magnolia Petrolrum Company | | Oil Operator | Aug 2005 |
| 17561 | Magnolia Production Co | Atlanta, TX 75551 | Oil & Gas Operator | Sep 2024 |
| 17562 | Magnolia Production Company LLC | | Oil & Gas Operator | Dec 2023 |
| 17563 | Magnum DRLG Of Ohio, Inc | Ashland, KY 41102 | Oil & Gas Operator | Dec 2020 |
| 17564 | Magnum Energy Inc | Norman, OK 73072-2403 | Oil & Gas Operator | Jul 2024 |
| 17565 | Magnum Engineering Company | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2024 |
| 17566 | Magnum Exploration Kansas, LLC | Lipan, TX 76462 | Oil Operator | Oct 2016 |
| 17567 | Magnum Gas Pipeline, L.L.C. | | Oil Operator | Dec 2023 |
| 17568 | Magnum Hunter Production, Inc. | Irving, TX 75014 | Oil & Gas Operator | Dec 2019 |
| 17569 | Magnum Hunter Resources Corporation | | Oil & Gas Operator | Nov 2019 |
| 17570 | Magnum Minerals, Inc. | | Oil & Gas Operator | May 1998 |
| 17571 | Magnum Oil & Gas | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2000 |
| 17572 | Magnum Oil, LLC | Hartford, KY 42347 | Oil Operator | Dec 2022 |
| 17573 | Magnum Oilfield Services LLC | Bakersfield, CA 93309 | Oil Operator | Sep 2024 |
| 17574 | Magnum Operating, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2024 |
| 17575 | Magnum Petroleum, Inc. | Palm Desert, CA 92260 | Oil & Gas Operator | Nov 2013 |
| 17576 | Magnum Producing & Operating Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jan 2004 |
| 17577 | Magnum Producing, LP | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2024 |
| 17578 | Magnum Production & Well Service | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2024 |
| 17579 | Magnusson Karl E | | Oil Operator | Apr 1987 |
| 17580 | Magnys Operations, LLC | El Paso, TX 79932 | Oil Operator | Sep 2024 |
| 17581 | Magpie Operating, Inc | | Oil & Gas Operator | Jun 2024 |
| 17582 | Magruder '81, LTD. | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 17583 | Magruder, Edwin H., Jr. | Midland, TX 79701 | Oil & Gas Operator | Oct 2019 |
| 17584 | Maguire James Q Inc | Norman, OK 73070-1748 | Oil & Gas Operator | Jun 2011 |
| 17585 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 17586 | Maha Energy Us Inc | | Oil Operator | Nov 2023 |
| 17587 | Mahan Jim And Janet | Collinsville, OK 74021 | Oil & Gas Operator | Jun 2024 |
| 17588 | Mahfouz Energy Company | Houston, TX 77255 | Oil & Gas Operator | Nov 2020 |
| 17589 | Mahler & Scott | Ruidoso, NM 88355 | Oil & Gas Operator | Aug 2003 |
| 17590 | Mahler, Kelly Operating | Graham, TX 76450 | Oil & Gas Operator | Mar 2017 |
| 17591 | Mahue Construction Company | Huntington, WV 25724-2345 | Oil & Gas Operator | Dec 2021 |
| 17592 | Mai Oil Operations, Inc. | Dallas, TX 75225 | Oil & Gas Operator | May 2024 |
| 17593 | Mai Operations | | Oil Operator | Dec 1996 |
| 17594 | Maier Resources Inc | Oklahoma City, OK 73157-2996 | Oil & Gas Operator | Mar 2015 |
| 17595 | Maier, H Paul | | Oil Operator | Dec 2022 |
| 17596 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
| 17597 | Main Street Royalty, Inc. | Lockhart, TX 78644 | Oil & Gas Operator | Aug 1999 |
| 17598 | Maines, Wendy R. | Irving, NY 14081 | Gas Operator | Dec 2023 |
| 17599 | Mainspring LLC | Uhrichsville, OH 44683 | Oil & Gas Operator | Dec 2023 |
| 17600 | Maintainer Energy Res Corp Inc | Morris, OK 74445-2663 | Oil Operator | Jun 2024 |