| 3801 | Marion Corporation | | Oil & Gas Operator | Jan 2001 |
| 3802 | Marion Energy Inc | Houston, TX 770082292 | Oil & Gas Operator | May 2015 |
| 3803 | Marjo Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Oct 1999 |
| 3804 | Marjo Operating Co., Inc. | Tulsa, OK 741010729 | Oil & Gas Operator | Dec 2024 |
| 3805 | Marjo Operating Mid-Continent LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2025 |
| 3806 | Mark A Meier Dba MSC Oil And Gas Co | Oklahoma City, OK 73105 | Oil & Gas Operator | Jan 2025 |
| 3807 | Mark Holloway Inc | Oklahoma City, OK 73107-6526 | Oil & Gas Operator | Jan 2025 |
| 3808 | Mark L Shidler Inc | Houston, TX 77055 | Oil & Gas Operator | Jan 2025 |
| 3809 | Mark Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2018 |
| 3810 | Markley Exploration | Bixby, OK 74008-5332 | Oil & Gas Operator | Jan 2014 |
| 3811 | Markley L C Corporation | Fletcher, OK 73541 | Oil & Gas Operator | Aug 2002 |
| 3812 | Markwell Jr Ed L | | Oil & Gas Operator | Oct 1998 |
| 3813 | Marler Philip | Purcell, OK 73080-1522 | Oil & Gas Operator | Nov 2016 |
| 3814 | Marlin Oil & Gas | Pawhuska, OK 74056 | Oil Operator | Dec 2024 |
| 3815 | Marlin Oil Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2024 |
| 3816 | Marlow Environmental LLC | Marlow, OK 73055 | Oil Operator | May 2022 |
| 3817 | Marmac Resources Co. | Los Angeles, CA 90027 | Oil & Gas Operator | Mar 2015 |
| 3818 | Marmac Resources Inc | | Oil Operator | Nov 1998 |
| 3819 | Marmik Oil Company | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2015 |
| 3820 | Marple Petroleum LLC | Edmond, OK 73013 | Oil Operator | Dec 2024 |
| 3821 | Marquise Oil Properties Inc | Konawa, OK 74849 | Oil & Gas Operator | Nov 1992 |
| 3822 | Marrs Bros Oil Co Inc | Drumright, OK 74030 | Oil Operator | Sep 1994 |
| 3823 | Marsh Lonnie C | Konawa, OK 74849 | Oil & Gas Operator | Dec 2024 |
| 3824 | Marsh Oil & Gas Company | Pauls Valley, OK 73075 | Oil & Gas Operator | Dec 2024 |
| 3825 | Marsh Operating Company | Dallas, TX 75221 | Oil & Gas Operator | Nov 2024 |
| 3826 | Marshall Oil Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2017 |
| 3827 | Martin Billy G | Okmulgee, OK 74447 | Oil & Gas Operator | May 2013 |
| 3828 | Martin Burt K | Henryetta, OK 74437 | Oil & Gas Operator | Jul 2008 |
| 3829 | Martin Jim & Julie | Wynona, OK 74084 | Oil & Gas Operator | Dec 2024 |
| 3830 | Martin John R | Cushing, OK 74023 | Oil & Gas Operator | Apr 1995 |
| 3831 | Martin Larry And/Or Sheila Dba Three Stooges Oil | Pawnee, OK 74058 | Oil Operator | Dec 2024 |
| 3832 | Martin Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | Dec 2024 |
| 3833 | Martin Oil Co. | Aspermont, TX 79502 | Oil & Gas Operator | Jul 2023 |
| 3834 | Martin Production Corporation | Graham, TX 76450 | Oil Operator | Jan 2025 |
| 3835 | Martin Tank Truck & Casing Pulling Inc | Cushing, OK 74023 | Oil & Gas Operator | Apr 2015 |
| 3836 | Martin'S Resources LLC | Woodward, OK 73801-5641 | Oil & Gas Operator | Dec 2024 |
| 3837 | Marvel Joseph Shawn | Haskell, OK 74436 | Oil Operator | Dec 2024 |
| 3838 | Marymac Company | Dallas, TX 75219-2362 | Oil & Gas Operator | Mar 2015 |
| 3839 | Masa Energy LLC | Houston, TX 77094 | Oil & Gas Operator | Mar 2025 |
| 3840 | Masada Oil & Gas | Quanah, TX 79252 | Oil & Gas Operator | Mar 2025 |
| 3841 | Masham Production Corporation | Enid, OK 73702 | Oil & Gas Operator | Aug 2000 |
| 3842 | Mason Oil Company Inc | Nowata, OK 74048 | Oil Operator | Oct 2007 |
| 3843 | Mason Oil Inc | Blanchard, OK 73010-2903 | Oil & Gas Operator | Feb 2009 |
| 3844 | Mason Robert A | | Oil Operator | May 1993 |
| 3845 | Mason Robert A Production Co | Edmond, OK 73013-9102 | Oil & Gas Operator | May 2013 |
| 3846 | Mason, Tommy L | | Oil & Gas Operator | May 2013 |
| 3847 | Massad George H Estate | Holdenville, OK 74848 | Oil & Gas Operator | Dec 2014 |
| 3848 | Massad John M | Holdenville, OK 74848-2629 | Oil & Gas Operator | Oct 2017 |
| 3849 | Massad Oil Company | Holdenville, OK 74848-2629 | Oil Operator | Dec 2024 |
| 3850 | Masters Dorothy V | Davis, OK 73030-0397 | Oil & Gas Operator | May 2020 |
| 3851 | Masters Loy C | Davis, OK 73030-0397 | Oil & Gas Operator | Apr 2005 |
| 3852 | Matador E & P Company Inc | | Oil & Gas Operator | May 2020 |
| 3853 | Matherly Elaine | Bristow, OK 74010-9536 | Oil Operator | Mar 2015 |
| 3854 | Mathews & Casselman Oil Inc | Morris, OK 74445 | Oil & Gas Operator | Dec 2021 |
| 3855 | Mathews Billy J | Morris, OK 74445-4826 | Oil & Gas Operator | Jan 2025 |
| 3856 | Mathews Exploration Corporation | Oklahoma City, OK 73155-5328 | Oil & Gas Operator | Mar 2015 |
| 3857 | Mathews Roger Dba Mathews Oil/Trans Energy | Kellyville, OK 74039 | Oil Operator | Dec 2024 |
| 3858 | Matna Enterprises LLC | Maud, OK 74854-2812 | Oil & Gas Operator | Dec 2024 |
| 3859 | Mator LLC | Hennessey, OK 73742-1235 | Oil & Gas Operator | Jan 2025 |
| 3860 | Matoush Wade E | | Oil & Gas Operator | Mar 2014 |
| 3861 | Mattea Oil & Gas LLC | Drumright, OK 74023 | Oil & Gas Operator | Nov 2024 |
| 3862 | Matthews Florine D | Bristow, OK 74010 | Oil & Gas Operator | Jan 2020 |
| 3863 | Matthews Kenneth (Butch) | Konawa, OK 74849-0310 | Oil Operator | Sep 2024 |
| 3864 | Matthews Oil & Gas | Ada, OK 74820 | Oil & Gas Operator | Dec 2024 |
| 3865 | Matthews Oil & Gas LLC | Weleetka, OK 74880-7312 | Oil & Gas Operator | Apr 2020 |
| 3866 | Mauldin Robert | Barnsdall, OK 74002 | Oil Operator | Apr 2024 |
| 3867 | Maverick Brothers Resources LLC | Enid, OK 73701 | Oil & Gas Operator | Dec 2024 |
| 3868 | Maverick Drilling Co., Inc. | Austin, TX 78729 | Oil & Gas Operator | Mar 2015 |
| 3869 | Maverick Oil Co. | Richland, TX 76681 | Oil Operator | Mar 2025 |
| 3870 | Max Oil Company | Blackwell, OK 74631-6329 | Oil & Gas Operator | Apr 2024 |
| 3871 | Maxey Homer G | | Oil & Gas Operator | Nov 1997 |
| 3872 | Maxim Energy Corporation | Baytown, TX 77520 | Oil & Gas Operator | Dec 2024 |
| 3873 | Maxine Oil Company | Muskogee, OK 74401-0512 | Oil & Gas Operator | Sep 2014 |
| 3874 | Maxland Oil Company | Haslet, TX 76052-5137 | Oil Operator | Nov 2014 |
| 3875 | Maxwell Resources Corporation | Oklahoma City, OK 73116-7746 | Oil & Gas Operator | Apr 2009 |
| 3876 | May Energy Company | Stroud, OK 74079 | Oil & Gas Operator | May 2013 |
| 3877 | May Petroleum, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Nov 1998 |
| 3878 | Mayabb Oil Company Inc | Tulsa, OK 74105-5158 | Oil & Gas Operator | Nov 2024 |
| 3879 | Mayes Donald W & Associates | Piedmont, OK 73078-0051 | Oil & Gas Operator | Dec 1996 |
| 3880 | Mayfield Engineering Service | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2025 |
| 3881 | Mayfield SWD LLC | McKinney, TX 75070-5020 | Oil & Gas Operator | Aug 2021 |
| 3882 | Mayhar N D | Eufaula, OK 74432 | Oil Operator | Apr 2015 |
| 3883 | Mayo Ross L Inc | Oklahoma City, OK 73120-1426 | Oil & Gas Operator | Jan 1997 |
| 3884 | MBR Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2025 |
| 3885 | McAninch J W | Tonkawa, OK 74653 | Oil & Gas Operator | Nov 2000 |
| 3886 | McAninch Michael E | Tonkawa, OK 74653-4415 | Oil & Gas Operator | May 2013 |
| 3887 | McAninch W Kent | Tonkawa, OK 74653-4216 | Oil & Gas Operator | Oct 2016 |
| 3888 | McCabe Douglas | Pawhuska, OK 74056 | Oil Operator | Feb 2012 |
| 3889 | McCabe Oil & Gas LLC | Dewey, OK 74029 | Oil Operator | Dec 2024 |
| 3890 | McCabe, William G | | Oil & Gas Operator | Aug 2013 |
| 3891 | McCann Resources Inc | Sedan, KS 67361 | Oil & Gas Operator | Dec 2024 |
| 3892 | McCart Sue | Okmulgee, OK 74447-8580 | Oil & Gas Operator | Nov 2024 |
| 3893 | McCarty Tom | | Oil & Gas Operator | Sep 2000 |
| 3894 | McChesney Michael & Ayo Joseph R | Pinedale, WY 82941-1282 | Oil Operator | Nov 2019 |
| 3895 | McCleese Enterprises LLC | Richardson, TX 75082-4839 | Gas Operator | Dec 2017 |
| 3896 | McClintock V C | Casper, WY 82601 | Oil & Gas Operator | May 2024 |
| 3897 | McClintock, Robert T | | Oil & Gas Operator | Oct 2024 |
| 3898 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Dec 2024 |
| 3899 | McCord Al Inc | Norman, OK 73072-6720 | Oil & Gas Operator | Feb 2011 |
| 3900 | McCord J K | Duncan, OK 73534-0032 | Oil Operator | Mar 2009 |