| 3501 | M & T Oil Company | Copan, OK 74022 | Oil Operator | Dec 2025 |
| 3502 | M & T Production Company LLC | Tulsa, OK 74132-3742 | Oil Operator | Apr 2011 |
| 3503 | M And V Resources Inc | Crescent, OK 73028 | Oil & Gas Operator | Feb 2026 |
| 3504 | M E Booth Corporation | Ada, OK 74820 | Oil Operator | Feb 2026 |
| 3505 | M E Klein & Associates LLC | Washington, OK 73093-4663 | Oil & Gas Operator | Feb 2026 |
| 3506 | M G Energy LLC | Cushing, OK 74023 | Oil & Gas Operator | Jan 2026 |
| 3507 | M H Oil & Gas LLC | Okeene, OK 73763-0684 | Oil & Gas Operator | Feb 2013 |
| 3508 | M J M D Inc | Burlington, IA 52601 | Oil Operator | Jan 2013 |
| 3509 | M K W Inc | Oklahoma City, OK 73112-8884 | Oil & Gas Operator | Dec 2009 |
| 3510 | M M Energy Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Feb 2026 |
| 3511 | M T W Oil Co | Terral, OK 73569 | Oil Operator | Jun 2014 |
| 3512 | M&D Energy LLC | Moore, OK 73160 | Oil Operator | Jan 2026 |
| 3513 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | May 2026 |
| 3514 | M-B SWD Inc | Crescent, OK 73028-0533 | Oil Operator | Jul 1997 |
| 3515 | M-P Petroleum, Inc. | McPherson, KS 67460 | Oil & Gas Operator | Jan 2013 |
| 3516 | M-S-C Corporation | Houston, TX 77027 | Oil Operator | May 1994 |
| 3517 | M. M. & M. Resources, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2020 |
| 3518 | M. S. Productions, Inc. | Pittsburg, KS 66762 | Oil & Gas Operator | Nov 2019 |
| 3519 | M3V Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | May 2026 |
| 3520 | Mac Engineering & Operating Co | | Oil & Gas Operator | May 2005 |
| 3521 | Mach Petroleum, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | Nov 2014 |
| 3522 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Feb 2026 |
| 3523 | Mack Oil Company | Duncan, OK 73534 | Oil & Gas Operator | Nov 2000 |
| 3524 | Mackellar Inc | Oklahoma City, OK 73116-7101 | Oil & Gas Operator | Feb 2026 |
| 3525 | Mackey Consulting & Leasing LLC | Cleveland, OK 74020 | Oil & Gas Operator | Jan 2026 |
| 3526 | Macmart Inc | Wynnewood, OK 73098 | Oil & Gas Operator | Jan 2016 |
| 3527 | Macro Oil Company | Bartlesville, OK 74006 | Oil Operator | Aug 1999 |
| 3528 | Magaw & Zimmer | Perry, OK 73077-1055 | Oil & Gas Operator | Aug 2013 |
| 3529 | Magellan Exploration Co LTD | Bethany, OK 73008-0909 | Oil & Gas Operator | Jun 2014 |
| 3530 | Maggard Joe | Mannford, OK 74044 | Oil & Gas Operator | May 2023 |
| 3531 | Maggard Oil Co Inc | Manford, OK 74044 | Oil & Gas Operator | Sep 1997 |
| 3532 | Maggard Supply & Oil Company | Mannford, OK 74044-1407 | Oil & Gas Operator | Nov 2014 |
| 3533 | Maggard VIrginia J | Mannford, OK 74044-3027 | Oil Operator | Feb 2026 |
| 3534 | Magic Investments LLC | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 3535 | Magma Resources LLC | Paoli, OK 73074 | Oil & Gas Operator | Apr 2025 |
| 3536 | Magnatex Corp | Midland, TX 79702-1311 | Oil & Gas Operator | Feb 1995 |
| 3537 | Magnolia Petroleum Inc | Tulsa, OK 74106-2433 | Oil Operator | Jun 2018 |
| 3538 | Magnum Energy Inc | Norman, OK 73072-2403 | Oil & Gas Operator | Feb 2026 |
| 3539 | Magnum Petroleum, Inc. | Palm Desert, CA 92260 | Oil & Gas Operator | Nov 2013 |
| 3540 | Maguire James Q Inc | Norman, OK 73070-1748 | Oil & Gas Operator | Jun 2011 |
| 3541 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 3542 | Mahan, Janet L | | Oil & Gas Operator | Feb 2026 |
| 3543 | Maier Resources Inc | Oklahoma City, OK 73157-2996 | Oil & Gas Operator | Mar 2015 |
| 3544 | Maintainer Energy Res Corp Inc | Morris, OK 74445-2663 | Oil Operator | Jan 2026 |
| 3545 | Majestic Energy Company LLC | Keifer, OK 74041 | Oil Operator | Jan 2026 |
| 3546 | Majestic Energy Corporation | Shreveport, LA 71164 | Oil & Gas Operator | May 2013 |
| 3547 | Majoil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 1996 |
| 3548 | Major Oil Co LLC | Drumright, OK 74030 | Oil & Gas Operator | May 2025 |
| 3549 | Majors Eugene E | Holdenville, OK 74848-9603 | Oil & Gas Operator | Jan 2026 |
| 3550 | Majors Gary E | Holdenville, OK 74848-9603 | Oil & Gas Operator | Dec 2025 |
| 3551 | Majors Jimmy R | Osceola, NE 68651-0726 | Oil & Gas Operator | Sep 2000 |
| 3552 | Majors John Dba Majors Production Co | Weleetka, OK 74880 | Oil & Gas Operator | Jan 2026 |
| 3553 | Majors Michael | Holdenville, OK 74848-0531 | Oil & Gas Operator | Sep 1994 |
| 3554 | Majors, Linda K | | Oil Operator | Aug 2025 |
| 3555 | Mallard Oil & Gas | Cody, WY 82414-9640 | Oil & Gas Operator | Oct 2019 |
| 3556 | Mallorn Energy LLC | Edmond, OK 73034 | Oil & Gas Operator | Nov 2025 |
| 3557 | Maloney Helen V Dba Penn-Ok Corporation | Hockessin, DE 19707-9640 | Oil & Gas Operator | Sep 2025 |
| 3558 | Malpais Inc | Prague, OK 74864 | Gas Operator | Jan 2026 |
| 3559 | Malson Oil Company | Crawford, OK 73638 | Oil & Gas Operator | Dec 2016 |
| 3560 | Malvern Group Inc | Clearwater, FL 33758-6817 | Oil & Gas Operator | Mar 2005 |
| 3561 | Maly & Maly Oil | Beggs, OK 74421-2844 | Oil & Gas Operator | Jan 2026 |
| 3562 | Manis Oil & Gas Inc | Blanchard, OK 73010 | Oil & Gas Operator | Dec 2025 |
| 3563 | Manna Corporation | Oklahoma City, OK 73162 | Oil & Gas Operator | Dec 2014 |
| 3564 | Mantex Inc | Tulsa, OK 74114-6234 | Oil & Gas Operator | Mar 2015 |
| 3565 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 3566 | Mapco Production Co | Billings, MT 59102 | Oil & Gas Operator | Apr 1994 |
| 3567 | Maple Properties Corp | Dallas, TX 75204 | Oil & Gas Operator | Jan 1999 |
| 3568 | Mar-Bar Enterprises Inc | Cushing, OK 74023-3031 | Oil Operator | Jan 2026 |
| 3569 | Marathon Oil Company LLC | Houston, TX 77079 | Oil & Gas Operator | Feb 2026 |
| 3570 | Marbet LLC | Edmond, OK 73013-6691 | Oil & Gas Operator | Jan 2026 |
| 3571 | Marco Oil Company | Sparta, KY 41086 | Oil Operator | Dec 2021 |
| 3572 | Marco Oil Company LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Feb 2026 |
| 3573 | Marcus Exploration Inc | Piedmont, OK 73078-0308 | Oil & Gas Operator | Dec 2000 |
| 3574 | Mardale Drilling Company | Oklahoma City, OK 73157 | Oil Operator | Nov 1998 |
| 3575 | Mariah Exploration LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Oct 2008 |
| 3576 | Marion Corporation | | Oil & Gas Operator | Jan 2001 |
| 3577 | Marion Energy Inc | Houston, TX 770082292 | Oil & Gas Operator | May 2015 |
| 3578 | Marjo Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Oct 1999 |
| 3579 | Marjo Operating Company Inc | Tulsa, OK 741010729 | Oil & Gas Operator | Jan 2026 |
| 3580 | Marjo Operating Mid-Continent LLC | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2026 |
| 3581 | Mark A Meier Dba MSC Oil And Gas Co | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2025 |
| 3582 | Mark Holloway Inc | Oklahoma City, OK 73107-6526 | Oil & Gas Operator | Feb 2026 |
| 3583 | Mark L Shidler Inc | Houston, TX 77055 | Oil & Gas Operator | Feb 2026 |
| 3584 | Mark Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2018 |
| 3585 | Markley Exploration | Bixby, OK 74008-5332 | Oil & Gas Operator | Jan 2014 |
| 3586 | Markley L C Corporation | Fletcher, OK 73541 | Oil & Gas Operator | Aug 2002 |
| 3587 | Marler Philip | Purcell, OK 73080-1522 | Oil & Gas Operator | Nov 2016 |
| 3588 | Marlin Oil Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Feb 2026 |
| 3589 | Marlin, Bruce W | | Oil Operator | Feb 2026 |
| 3590 | Marlow Environmental LLC | Marlow, OK 73055 | Oil Operator | May 2022 |
| 3591 | Marmac Resources Company | | Oil & Gas Operator | Mar 2015 |
| 3592 | Marmac Resources Inc | | Oil Operator | Nov 1998 |
| 3593 | Marmik Oil Company | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2015 |
| 3594 | Marple Petroleum LLC | Edmond, OK 73013 | Oil Operator | Jan 2026 |
| 3595 | Marquise Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Nov 1992 |
| 3596 | Marrs Bros Oil Co Inc | Drumright, OK 74030 | Oil Operator | Sep 1994 |
| 3597 | Marsh Lonnie C | Konawa, OK 74849 | Oil & Gas Operator | Jan 2026 |
| 3598 | Marsh Oil & Gas Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2026 |
| 3599 | Marsh Operating Company | Dallas, TX 75221 | Oil & Gas Operator | Jan 2026 |
| 3600 | Marshall Oil Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2017 |