| 17501 | Maggard Supply & Oil Company | Mannford, OK 74044-1407 | Oil & Gas Operator | Nov 2014 |
| 17502 | Maggard VIrginia J | Mannford, OK 74044-3027 | Oil Operator | Feb 2026 |
| 17503 | Maggert Energy Corp. | Spring, TX 77387 | Gas Operator | Jun 1998 |
| 17504 | Magic Circle Energy | Oklahoma City, OK 73185 | Oil & Gas Operator | Dec 1983 |
| 17505 | Magic City Oil & Gas | Amarillo, TX 79109 | Oil & Gas Operator | Apr 2026 |
| 17506 | Magic Investments LLC | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 17507 | Magic Oil & Gas Inc. | Houston, TX 77079 | Oil & Gas Operator | Jan 2001 |
| 17508 | Magma Resources LLC | Paoli, OK 73074 | Oil & Gas Operator | Apr 2025 |
| 17509 | Magna Diversified Group, Inc. | Jacksonville, TX 75766 | Oil & Gas Operator | Oct 2013 |
| 17510 | Magna Oil & Gas Corporation | Irving, TX 75017 | Oil & Gas Operator | Feb 2016 |
| 17511 | Magna Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2026 |
| 17512 | Magnatex Corp | Midland, TX 79702-1311 | Oil & Gas Operator | Feb 1995 |
| 17513 | Magnatex Petrole | | Oil Operator | Jun 1994 |
| 17514 | Magnatex Petroleum | | Oil Operator | Apr 1993 |
| 17515 | Magness Petroleum Company | | Oil & Gas Operator | Dec 1994 |
| 17516 | Magnet Oil LP | Bronte, TX 76933 | Oil & Gas Operator | Apr 2026 |
| 17517 | Magnolia Oil & Gas Operating LLC | Houston, TX 77046 | Oil & Gas Operator | Apr 2026 |
| 17518 | Magnolia Petroleum Inc | Tulsa, OK 74106-2433 | Oil Operator | Jun 2018 |
| 17519 | Magnolia Production Co | Atlanta, TX 75551 | Oil & Gas Operator | Apr 2026 |
| 17520 | Magnolia Production Company LLC | | Oil & Gas Operator | Nov 2024 |
| 17521 | Magnum DRLG Of Ohio, Inc | Ashland, KY 41102 | Oil & Gas Operator | Dec 2024 |
| 17522 | Magnum Energy Inc | Norman, OK 73072-2403 | Oil & Gas Operator | Feb 2026 |
| 17523 | Magnum Engineering Company | Corpus Christ, TX 78401 | Oil & Gas Operator | Apr 2026 |
| 17524 | Magnum Exploration Kansas, LLC | Lipan, TX 76462 | Oil Operator | Oct 2016 |
| 17525 | Magnum Gas Pipeline, L.L.C. | | Oil Operator | Dec 2024 |
| 17526 | Magnum Hunter Production, Inc. | Irving, TX 75014 | Oil & Gas Operator | Dec 2019 |
| 17527 | Magnum Hunter Resources Corporation | | Oil & Gas Operator | Nov 2019 |
| 17528 | Magnum Minerals, Inc. | | Oil & Gas Operator | May 1998 |
| 17529 | Magnum Oil & Gas | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2000 |
| 17530 | Magnum Oil, LLC | Hartford, KY 42347 | Oil Operator | Dec 2023 |
| 17531 | Magnum Oilfield Services LLC | Bakersfield, CA 93309 | Oil Operator | Apr 2026 |
| 17532 | Magnum Operating, LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Apr 2026 |
| 17533 | Magnum Petroleum, Inc. | Palm Desert, CA 92260 | Oil & Gas Operator | Nov 2013 |
| 17534 | Magnum Producing & Operating Co. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jan 2004 |
| 17535 | Magnum Producing, LP | Corpus Christ, TX 78401 | Oil & Gas Operator | Apr 2026 |
| 17536 | Magnum Production & Well Service | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2026 |
| 17537 | Magnusson Karl E | | Oil Operator | Apr 1987 |
| 17538 | Magpie Operating, Inc | | Oil & Gas Operator | Jan 2026 |
| 17539 | Magruder '81, LTD. | Midland, TX 79701 | Oil & Gas Operator | Jan 1995 |
| 17540 | Magruder, Edwin H., Jr. | Midland, TX 79701 | Oil & Gas Operator | Oct 2019 |
| 17541 | Maguire James Q Inc | Norman, OK 73070-1748 | Oil & Gas Operator | Jun 2011 |
| 17542 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 17543 | Maha Energy Us Inc | | Oil Operator | Nov 2023 |
| 17544 | Mahan, Janet L | | Oil & Gas Operator | Feb 2026 |
| 17545 | Mahfouz Energy Company | Houston, TX 77255 | Oil & Gas Operator | Nov 2020 |
| 17546 | Mahl, Matthew J. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 17547 | Mahler & Scott | Ruidoso, NM 88355 | Oil & Gas Operator | Aug 2003 |
| 17548 | Mahler, Kelly Operating | Graham, TX 76450 | Oil & Gas Operator | Mar 2017 |
| 17549 | Mahue Construction Company | Huntington, WV 25724-2345 | Oil & Gas Operator | Dec 2021 |
| 17550 | Mai Oil Operations, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 17551 | Mai Operations | | Oil Operator | Dec 1996 |
| 17552 | Maier Resources Inc | Oklahoma City, OK 73157-2996 | Oil & Gas Operator | Mar 2015 |
| 17553 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
| 17554 | Main Street Royalty, Inc. | Lockhart, TX 78644 | Oil & Gas Operator | Aug 1999 |
| 17555 | Maines, Wendy R. | Irving, NY 14081 | Gas Operator | Dec 2024 |
| 17556 | Mainspring LLC | Uhrichsville, OH 44683 | Oil & Gas Operator | Dec 2024 |
| 17557 | Maintainer Energy Res Corp Inc | Morris, OK 74445-2663 | Oil Operator | Jan 2026 |
| 17558 | Majestic Energy Company LLC | Keifer, OK 74041 | Oil Operator | Jan 2026 |
| 17559 | Majestic Energy Corporation | Shreveport, LA 71164 | Oil & Gas Operator | May 2013 |
| 17560 | Majestic Management Corp | | Oil Operator | Dec 2013 |
| 17561 | Majestic Oil & Gas Holding Co. | Graham, TX 76450 | Oil Operator | Apr 2026 |
| 17562 | Majestic Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | May 2007 |
| 17563 | Majestic Petroleum Corporation | Dallas, TX 75230 | Oil & Gas Operator | Oct 1996 |
| 17564 | Majestic Petroleum Operations Inc | Story, WY 82842 | Gas Operator | Mar 2007 |
| 17565 | Majestic Resources, Inc. | Dripping SPGS, TX 78620 | Oil & Gas Operator | Nov 2007 |
| 17566 | Majoil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 1996 |
| 17567 | Major Oil Co LLC | Drumright, OK 74030 | Oil & Gas Operator | May 2025 |
| 17568 | Major Oil Compan | | Oil Operator | Mar 1988 |
| 17569 | Majors Eugene E | Holdenville, OK 74848-9603 | Oil & Gas Operator | Jan 2026 |
| 17570 | Majors Gary E | Holdenville, OK 74848-9603 | Oil & Gas Operator | Dec 2025 |
| 17571 | Majors Jimmy R | Osceola, NE 68651-0726 | Oil & Gas Operator | Sep 2000 |
| 17572 | Majors John Dba Majors Production Co | Weleetka, OK 74880 | Oil & Gas Operator | Jan 2026 |
| 17573 | Majors Michael | Holdenville, OK 74848-0531 | Oil & Gas Operator | Sep 1994 |
| 17574 | Majors, Linda K | | Oil Operator | Aug 2025 |
| 17575 | Mak Oil & Gas Co | | Oil Operator | Mar 2009 |
| 17576 | Mak-J Energy Partners(TX),LTD. | Denver, CO 80206 | Oil & Gas Operator | Sep 2013 |
| 17577 | Mak-J Energy Wyoming LLC | Denver, CO 80620 | Oil & Gas Operator | Nov 2012 |
| 17578 | Makar Production Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 17579 | Makk Oil Production Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2026 |
| 17580 | Mako Exploration Management, LLC | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2026 |
| 17581 | Mako Operating Company, LLC | Andover, KS 67002 | Gas Operator | May 2002 |
| 17582 | Makoil, Inc. | Lake Forest, CA 92630 | Oil & Gas Operator | Jul 2007 |
| 17583 | Maledon Enterprises | Austin, TX 78738 | Oil & Gas Operator | Feb 1996 |
| 17584 | Mallard Drilling Corp. | | Oil & Gas Operator | Jan 1993 |
| 17585 | Mallard Exploration, Inc. | | Oil & Gas Operator | Sep 1975 |
| 17586 | Mallard Oil & Gas | Cody, WY 82414-9640 | Oil & Gas Operator | Oct 2019 |
| 17587 | Mallard Operating LLC | | Oil & Gas Operator | Nov 2024 |
| 17588 | Mallard Petroleum, Inc. | | Oil & Gas Operator | Apr 1986 |
| 17589 | Mallett Luke-Dba Mallett Energy | New Concord, OH 43762 | Oil & Gas Operator | Dec 2016 |
| 17590 | Mallon Oil Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2005 |
| 17591 | Mallorn Energy LLC | Edmond, OK 73034 | Oil & Gas Operator | Nov 2025 |
| 17592 | Mallory, Meredith, Jr. | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2002 |
| 17593 | Malmac Energy Corp. | | Oil & Gas Operator | Jul 1987 |
| 17594 | Malone Donald J | | Oil Operator | Nov 1993 |
| 17595 | Malone Oil & Gas Exploration, Inc. | | Oil Operator | Dec 2018 |
| 17596 | Malone Oil Co. | | Oil & Gas Operator | Jul 2006 |
| 17597 | Malone Oil Compa | | Oil Operator | Dec 1994 |
| 17598 | Malone Oil Production | La Vernia, TX 78121 | Oil & Gas Operator | Apr 2026 |
| 17599 | Malone-Killen Oil Expl. Co. | | Oil Operator | Apr 1992 |
| 17600 | Maloney Helen V Dba Penn-Ok Corporation | Hockessin, DE 19707-9640 | Oil & Gas Operator | Sep 2025 |