| 3901 | Monterey Production Company LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2026 |
| 3902 | Montex Exploration Company | Houston, TX 77057 | Oil & Gas Operator | Mar 2011 |
| 3903 | Montgomery Exploration Co LTD | Dallas, TX 75204-2634 | Oil & Gas Operator | Jul 2026 |
| 3904 | Montgomery Jake E | Henryetta, OK 74437 | Oil & Gas Operator | Jun 2026 |
| 3905 | Montgomery Oil & Gas Expl Inc | Tulsa, OK 74170-1884 | Oil & Gas Operator | Mar 2005 |
| 3906 | Monty L Hott Production Corporation | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2026 |
| 3907 | Moore & Moore Energy Inc | Purcell, OK 73080-0674 | Oil & Gas Operator | Dec 2012 |
| 3908 | Moore Clay | Bradenton, FL 34211 | Oil & Gas Operator | Jun 2026 |
| 3909 | Moore David K | Duncan, OK 73575 | Oil & Gas Operator | Oct 2009 |
| 3910 | Moore Don | Elmore City, OK 73433 | Oil & Gas Operator | Jul 2026 |
| 3911 | Moore Investments LC | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Feb 2023 |
| 3912 | Moore Lynn D | Collinsville, OK 74021 | Oil Operator | Aug 2013 |
| 3913 | Moore Norman L | Sasakwa, OK 74867 | Oil Operator | Jun 2026 |
| 3914 | Moore Oil And Gas | Burleson, TX 76028 | Oil & Gas Operator | Sep 2026 |
| 3915 | Moore Petroleum Invest Corp | Norman, OK 73072-4217 | Oil & Gas Operator | Jun 2026 |
| 3916 | Moore Richard L | Morris, OK 74445 | Oil Operator | Aug 2013 |
| 3917 | Moore Tommy M | Sapulpa, OK 74066-8273 | Oil & Gas Operator | May 2013 |
| 3918 | Moore W T | Sapulpa, OK 74067-0946 | Oil & Gas Operator | Jan 2021 |
| 3919 | Moran Oil Enterprises LLC | Seminole, OK 74818 | Oil & Gas Operator | Dec 2019 |
| 3920 | Moran-K Oil LLC | Seminole, OK 74868 | Oil & Gas Operator | Jul 2026 |
| 3921 | Moran-Kahn Oil | Seminole, OK 74868 | Oil & Gas Operator | Mar 1992 |
| 3922 | Morgan David E | Enid, OK 73702-3525 | Oil & Gas Operator | Sep 2016 |
| 3923 | Morgan Energy Corporation | Englewood, CO 80110 | Oil & Gas Operator | Mar 2006 |
| 3924 | Morgan Oil Company | Nacogdoches, TX 75963 | Oil & Gas Operator | May 2006 |
| 3925 | Morgan Petroleum Company | Edmond, OK 73083 | Oil & Gas Operator | Mar 1993 |
| 3926 | Morgan Robert M / L Ladean | Wewoka, OK 74884 | Oil & Gas Operator | Jul 2015 |
| 3927 | Morris & Associates | Purcell, OK 73080 | Oil Operator | Feb 2012 |
| 3928 | Morris Dennis J | Cameron, OK 74932-2186 | Gas Operator | Jun 2026 |
| 3929 | Morris Ed Dba Morris Operating Company | Mounds, OK 74047-4801 | Oil & Gas Operator | Jun 2026 |
| 3930 | Morris Pete Drilling Company | | Oil Operator | Feb 1999 |
| 3931 | Morris Roger Dan | Cushing, OK 74023 | Oil & Gas Operator | Apr 2026 |
| 3932 | Morrison International Energy Inc | Oklahoma City, OK 73189-0537 | Oil & Gas Operator | Feb 2025 |
| 3933 | Morrison Oil Company | Bartlesville, OK 74003 | Oil Operator | Mar 2015 |
| 3934 | Morton Bros A Partnership | Bristow, OK 74010-0403 | Oil & Gas Operator | Jul 2003 |
| 3935 | Morton Brothers Company | Bristow, OK 74010 | Oil & Gas Operator | May 2009 |
| 3936 | Morton Drilling Company | Bristow, OK 74010-1279 | Oil & Gas Operator | Jun 1995 |
| 3937 | Morton Leases | Morris, OK 74445-2048 | Oil & Gas Operator | Jul 2017 |
| 3938 | Morton Leases Inc | | Oil & Gas Operator | Jun 2026 |
| 3939 | Morton Production Inc | Ada, OK 74820-2643 | Oil & Gas Operator | Sep 2014 |
| 3940 | Moss Ted A Operating Company | Oklahoma City, OK 73126-0187 | Oil & Gas Operator | Jun 1997 |
| 3941 | Moss William Properties Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2014 |
| 3942 | Mote Resources, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2004 |
| 3943 | Mott Energy LLC | Riverview, FL 33569-6702 | Oil & Gas Operator | Sep 2024 |
| 3944 | Mott Oil & Gas | Sugarland, TX 77478 | Oil & Gas Operator | May 2001 |
| 3945 | Mott Petroleum Corporation | Sugar Land, TX 77487 | Oil & Gas Operator | Aug 2024 |
| 3946 | Mountain Creek Energy Inc | Georgetown, TX 78633 | Oil & Gas Operator | May 2026 |
| 3947 | Mountainside Energy Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 3948 | Mozark Corporation | Spring, TX 77379-8049 | Oil & Gas Operator | Jan 2011 |
| 3949 | Moze Inc | Ochelata, OK 74051 | Oil & Gas Operator | Jan 2001 |
| 3950 | MRD Nowata LLC | Woodstock, GA 30189 | Oil Operator | Aug 2017 |
| 3951 | MSB Operating Company | Enid, OK 73703 | Oil & Gas Operator | Jan 2005 |
| 3952 | MT Dora Energy Corporation | Duncan, OK 73533-1829 | Oil & Gas Operator | Apr 2014 |
| 3953 | MT Dora Energy LLC | Houston, OK 77056-1940 | Oil & Gas Operator | Jun 2019 |
| 3954 | MT Energy LLC | Waskom, TX 75692 | Oil & Gas Operator | Sep 2026 |
| 3955 | Mto Oil Company | Okay, OK 74446-0354 | Oil Operator | Jul 2019 |
| 3956 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Aug 2026 |
| 3957 | Muegge Don E | Lamont, OK 74643-5010 | Oil & Gas Operator | Dec 1996 |
| 3958 | Mueggenborg Derrick R Dba DRM Oil & Gas | Yale, OK 74085-0335 | Oil Operator | Jul 2026 |
| 3959 | Mueller Thomas C | Fort Smith, AR 72913 | Gas Operator | Aug 2008 |
| 3960 | Mueller Thomas C LTD | Oklahoma City, OK 73102-5683 | Gas Operator | Aug 2008 |
| 3961 | Muirfield Resources Company | Tulsa, OK 74101-3166 | Oil & Gas Operator | Jun 2024 |
| 3962 | Mullen William Company | Edmond, OK 73083-1372 | Oil & Gas Operator | May 1999 |
| 3963 | Mullins Jimmy R Dba Southcreek Petroleum Co | Dibble, OK 73031 | Oil & Gas Operator | Jan 2021 |
| 3964 | Mullins, John S | | Oil Operator | Nov 2014 |
| 3965 | Munson Dave Company | Dallas, TX 75201-3591 | Oil Operator | Aug 1996 |
| 3966 | Munson, David M. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 3967 | Muras Energy Inc | Edmond, OK 73013 | Oil & Gas Operator | Jul 2026 |
| 3968 | Murchison Oil & Gas Inc | Plano, TX 75024 | Oil & Gas Operator | Aug 2020 |
| 3969 | Murexco Petroleum Inc | Dallas, TX 75251 | Oil & Gas Operator | Oct 1996 |
| 3970 | Murphy Helen Colpitt Trust | Collinsville, OK 74021-0128 | Oil & Gas Operator | May 2002 |
| 3971 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 3972 | Musgrove Casey Oil | Ponca City, OK 74602-0391 | Oil & Gas Operator | Jun 2017 |
| 3973 | Musgrove Energy Inc | Ponca City, OK 74602 | Oil & Gas Operator | Dec 2025 |
| 3974 | Mustang Fuel Corp. Of Oklahoma | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2016 |
| 3975 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2026 |
| 3976 | Mustang Gas Products LLC | Oklahoma City, OK 73114-7406 | Oil & Gas Operator | Sep 2022 |
| 3977 | Mutual Oil & Gas Co | Akron, OH 44311 | Oil & Gas Operator | Dec 2000 |
| 3978 | MW Petroleum Corporation | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 3979 | MXP Operating LLC | Covington, TX 76093 | Oil & Gas Operator | Feb 2026 |
| 3980 | Myers, Robert L | | Oil Operator | Jun 2026 |
| 3981 | Myjo Oil Corporation | Breckenridge, TX 76024 | Oil Operator | Jul 1996 |
| 3982 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
| 3983 | N & N Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | May 2023 |
| 3984 | N L S Inc | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 3985 | Nabob Production Company | Amarillo, TX 79105 | Gas Operator | Dec 1991 |
| 3986 | Nabors Well Services LTD | Houston, TX 77067-4536 | Oil Operator | Apr 2011 |
| 3987 | Nadel And Gussman LLC | Tulsa, OK 74119 | Oil & Gas Operator | Sep 2026 |
| 3988 | Naifco Oil & Gas LLC | Oklahoma City, OK 73107 | Oil & Gas Operator | Jul 2026 |
| 3989 | Nail Stephen Dba Nail Oil & Gas | Maud, OK 74854 | Oil Operator | Jul 2026 |
| 3990 | Nancy Oil & Gas Corp | Tulsa, OK 74101 | Oil Operator | Apr 2020 |
| 3991 | Nard Inc | Buffalo, OK 73834-9737 | Oil Operator | Dec 2005 |
| 3992 | Naro Oil Corporation | Dallas, TX 75230-1986 | Oil & Gas Operator | Nov 2003 |
| 3993 | National Cooperative RFG Assoc | McPherson, KS 67460-1404 | Oil & Gas Operator | Oct 2025 |
| 3994 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 3995 | National Oil Co Ohio The | Columbus, OH 43215 | Oil & Gas Operator | Sep 1999 |
| 3996 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 3997 | Native Exploration Operating LLC | Oklahoma City, OK 73102-5804 | Oil & Gas Operator | Aug 2025 |
| 3998 | Native Gas Company LLC | Edmond, OK 73083-7435 | Oil & Gas Operator | Mar 2015 |
| 3999 | Natomas North America Inc | | Oil & Gas Operator | Aug 1993 |
| 4000 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | Sep 2026 |