| 3601 | Mallard Oil & Gas | Cody, WY 82414-9640 | Oil & Gas Operator | Oct 2019 |
| 3602 | Mallorn Energy LLC | Edmond, OK 73034 | Oil & Gas Operator | Jun 2025 |
| 3603 | Maloney Helen V Dba Penn-Ok Corporation | Hockessin, DE 19707-9640 | Oil & Gas Operator | Dec 2024 |
| 3604 | Malpais Inc | Prague, OK 74864 | Gas Operator | Jun 2025 |
| 3605 | Malson Oil Company | Crawford, OK 73638 | Oil & Gas Operator | Dec 2016 |
| 3606 | Malvern Group Inc | Clearwater, FL 33758-6817 | Oil & Gas Operator | Mar 2005 |
| 3607 | Maly & Maly Oil | Beggs, OK 74421-2844 | Oil & Gas Operator | Jun 2025 |
| 3608 | Manis Oil & Gas Inc | Blanchard, OK 73010 | Oil & Gas Operator | Jul 2025 |
| 3609 | Manna Corporation | Oklahoma City, OK 73162 | Oil & Gas Operator | Dec 2014 |
| 3610 | Mantex Inc | Tulsa, OK 74114-6234 | Oil & Gas Operator | Mar 2015 |
| 3611 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jul 2025 |
| 3612 | Mapco Production Co | Billings, MT 59102 | Oil & Gas Operator | Apr 1994 |
| 3613 | Maple Properties Corp | Dallas, TX 75204 | Oil & Gas Operator | Jan 1999 |
| 3614 | Mar-Bar Enterprises Inc | Cushing, OK 74023-3031 | Oil Operator | Jun 2025 |
| 3615 | Marathon Oil Company LLC | Houston, TX 77079 | Oil & Gas Operator | Jul 2025 |
| 3616 | Marbet LLC | Edmond, OK 73013-6691 | Oil & Gas Operator | Jun 2025 |
| 3617 | Marco Oil Co, Inc | Sparta, KY 41086 | Oil Operator | Dec 2021 |
| 3618 | Marco Oil Company LLC | Bartlesville, OK 74005 | Oil & Gas Operator | Jun 2025 |
| 3619 | Marcus Exploration Inc | Piedmont, OK 73078-0308 | Oil & Gas Operator | Dec 2000 |
| 3620 | Mardale Drilling Company | Oklahoma City, OK 73157 | Oil Operator | Nov 1998 |
| 3621 | Mariah Exploration LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Oct 2008 |
| 3622 | Marion Corporation | | Oil & Gas Operator | Jan 2001 |
| 3623 | Marion Energy Inc | Houston, TX 770082292 | Oil & Gas Operator | May 2015 |
| 3624 | Marjo Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Oct 1999 |
| 3625 | Marjo Operating Company Inc | Tulsa, OK 741010729 | Oil & Gas Operator | Jun 2025 |
| 3626 | Marjo Operating Mid-Continent LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2025 |
| 3627 | Mark A Meier Dba MSC Oil And Gas Co | Oklahoma City, OK 73105 | Oil & Gas Operator | Jun 2025 |
| 3628 | Mark Holloway Inc | Oklahoma City, OK 73107-6526 | Oil & Gas Operator | Jun 2025 |
| 3629 | Mark L Shidler Inc | Houston, TX 77055 | Oil & Gas Operator | Jul 2025 |
| 3630 | Mark Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2018 |
| 3631 | Markley Exploration | Bixby, OK 74008-5332 | Oil & Gas Operator | Jan 2014 |
| 3632 | Markley L C Corporation | Fletcher, OK 73541 | Oil & Gas Operator | Aug 2002 |
| 3633 | Marler Philip | Purcell, OK 73080-1522 | Oil & Gas Operator | Nov 2016 |
| 3634 | Marlin Oil Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Jun 2025 |
| 3635 | Marlin, Bruce W | | Oil Operator | Jun 2025 |
| 3636 | Marlow Environmental LLC | Marlow, OK 73055 | Oil Operator | May 2022 |
| 3637 | Marmac Resources Co. | | Oil & Gas Operator | Mar 2015 |
| 3638 | Marmac Resources Inc | | Oil Operator | Nov 1998 |
| 3639 | Marmik Oil Company | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2015 |
| 3640 | Marple Petroleum LLC | Edmond, OK 73013 | Oil Operator | Jun 2025 |
| 3641 | Marquise Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Nov 1992 |
| 3642 | Marrs Bros Oil Co Inc | Drumright, OK 74030 | Oil Operator | Sep 1994 |
| 3643 | Marsh Lonnie C | Konawa, OK 74849 | Oil & Gas Operator | May 2025 |
| 3644 | Marsh Oil & Gas Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2025 |
| 3645 | Marsh Operating Company | Dallas, TX 75221 | Oil & Gas Operator | Jun 2025 |
| 3646 | Marshall Oil Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2017 |
| 3647 | Martin Billy G | Okmulgee, OK 74447 | Oil & Gas Operator | May 2013 |
| 3648 | Martin Burt K | Henryetta, OK 74437 | Oil & Gas Operator | Jul 2008 |
| 3649 | Martin John R | Cushing, OK 74023 | Oil & Gas Operator | Apr 1995 |
| 3650 | Martin Jr, James U | | Oil & Gas Operator | Jun 2025 |
| 3651 | Martin Larry And/Or Sheila Dba Three Stooges Oil | Pawnee, OK 74058 | Oil Operator | Jun 2025 |
| 3652 | Martin Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | May 2025 |
| 3653 | Martin Oil Co. | Aspermont, TX 79502 | Oil & Gas Operator | Jul 2023 |
| 3654 | Martin Production Corporation | Graham, TX 76450 | Oil Operator | Jul 2025 |
| 3655 | Martin Tank Truck & Casing Pulling Inc | Cushing, OK 74023 | Oil & Gas Operator | Apr 2015 |
| 3656 | Martin'S Resources LLC | Woodward, OK 73801-5641 | Oil & Gas Operator | Jun 2025 |
| 3657 | Marvel Joseph Shawn | Haskell, OK 74436 | Oil Operator | Jun 2025 |
| 3658 | Marymac Company | Dallas, TX 75219-2362 | Oil & Gas Operator | Mar 2015 |
| 3659 | Masa Energy LLC | Houston, TX 77094 | Oil & Gas Operator | Oct 2025 |
| 3660 | Masada Oil & Gas | Quanah, TX 79252 | Oil & Gas Operator | Oct 2025 |
| 3661 | Masham Production Corporation | Enid, OK 73702 | Oil & Gas Operator | Aug 2000 |
| 3662 | Mason Oil Company Inc | Nowata, OK 74048 | Oil Operator | Oct 2007 |
| 3663 | Mason Oil Inc | Blanchard, OK 73010-2903 | Oil & Gas Operator | Feb 2009 |
| 3664 | Mason Robert A | | Oil Operator | May 1993 |
| 3665 | Mason Robert A Production Co | Edmond, OK 73013-9102 | Oil & Gas Operator | May 2013 |
| 3666 | Mason, Tommy L | | Oil & Gas Operator | May 2013 |
| 3667 | Massad George H Estate | Holdenville, OK 74848 | Oil & Gas Operator | Dec 2014 |
| 3668 | Massad John M | Holdenville, OK 74848-2629 | Oil & Gas Operator | Oct 2017 |
| 3669 | Massad Oil Company | Holdenville, OK 74848-2629 | Oil Operator | Jun 2025 |
| 3670 | Masters Dorothy V | Davis, OK 73030-0397 | Oil & Gas Operator | May 2020 |
| 3671 | Masters Loy C | Davis, OK 73030-0397 | Oil & Gas Operator | Apr 2005 |
| 3672 | Matador E & P Company Inc | | Oil & Gas Operator | May 2020 |
| 3673 | Matherly Elaine | Bristow, OK 74010-9536 | Oil Operator | Mar 2015 |
| 3674 | Mathews & Casselman Oil Inc | Morris, OK 74445 | Oil & Gas Operator | Dec 2021 |
| 3675 | Mathews Billy J | Morris, OK 74445-4826 | Oil & Gas Operator | Jun 2025 |
| 3676 | Mathews Exploration Corporation | Oklahoma City, OK 73155-5328 | Oil & Gas Operator | Mar 2015 |
| 3677 | Mathews Roger Dba Mathews Oil/Trans Energy | Kellyville, OK 74039 | Oil Operator | Jul 2025 |
| 3678 | Matna Enterprises LLC | Maud, OK 74854-2812 | Oil & Gas Operator | Jun 2025 |
| 3679 | Mator LLC | Hennessey, OK 73742-1235 | Oil & Gas Operator | Jul 2025 |
| 3680 | Matoush Wade E | | Oil & Gas Operator | Mar 2014 |
| 3681 | Mattea Oil & Gas LLC | Drumright, OK 74023 | Oil & Gas Operator | Jun 2025 |
| 3682 | Matthews Florine D | Bristow, OK 74010 | Oil & Gas Operator | Jan 2020 |
| 3683 | Matthews Kenneth (Butch) | Konawa, OK 74849-0310 | Oil Operator | May 2025 |
| 3684 | Matthews Oil & Gas | Ada, OK 74820 | Oil & Gas Operator | Jun 2025 |
| 3685 | Matthews Oil & Gas LLC | Weleetka, OK 74880-7312 | Oil & Gas Operator | Apr 2020 |
| 3686 | Maverick Brothers Resources LLC | Enid, OK 73701 | Oil & Gas Operator | Jun 2025 |
| 3687 | Maverick Drilling Co., Inc. | Austin, TX 78729 | Oil & Gas Operator | Mar 2015 |
| 3688 | Maverick Oil Co. | Richland, TX 76681 | Oil Operator | Oct 2025 |
| 3689 | Max Oil Company | Blackwell, OK 74631 | Oil & Gas Operator | Apr 2024 |
| 3690 | Maxim Energy Corporation | Baytown, TX 77520 | Oil & Gas Operator | Jul 2025 |
| 3691 | Maxine Oil Company | Muskogee, OK 74401-0512 | Oil & Gas Operator | Sep 2014 |
| 3692 | Maxland Oil Company | Haslet, TX 76052-5137 | Oil Operator | Nov 2014 |
| 3693 | Maxwell Resources Corporation | Oklahoma City, OK 73116-7746 | Oil & Gas Operator | Apr 2009 |
| 3694 | May Energy Company | Stroud, OK 74079 | Oil & Gas Operator | May 2013 |
| 3695 | May Petroleum, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Nov 1998 |
| 3696 | Mayabb Oil Company Inc | Tulsa, OK 74105-5158 | Oil & Gas Operator | Jun 2025 |
| 3697 | Mayes Donald W & Associates | Piedmont, OK 73078-0051 | Oil & Gas Operator | Dec 1996 |
| 3698 | Mayfield Engineering Service | Tulsa, OK 74104 | Oil & Gas Operator | Oct 2025 |
| 3699 | Mayfield SWD LLC | McKinney, TX 75070-5020 | Oil Operator | Aug 2021 |
| 3700 | Mayhar N D | Eufaula, OK 74432 | Oil Operator | Apr 2015 |