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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Mid-Continent Resources, Inc. | Kansas | 1,779 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Mid-South Trading, Inc. | Louisiana | 2,200 BBLs | 0 MCF | Dec 1995 - Jan 2024 |
| Mike Kelso Oil, Inc. | Kansas | 16,406 BBLs | 127,757 MCF | Jan 1980 - Dec 2023 |
| Miller Energy Company II LLC | Michigan | 21,286 BBLs | 3,439 MCF | Jan 1982 - Feb 2024 |
| Mineral Ventures, Inc. | Louisiana | 1,152 BBLs | 36,080 MCF | Mar 1998 - Dec 2023 |
| Missaukee Oil And Gas Company LLC | Michigan | 5,833 BBLs | 2,689 MCF | Sep 2019 - Feb 2024 |
| Mission Creek Opco, LLC | Arkansas | 48,360 BBLs | 158,556 MCF | Oct 2018 - Feb 2024 |
| Missouri River Resources ND, LLC | North Dakota | 7,825 BBLs | 27,342 MCF | Nov 2014 - Feb 2024 |
| MMGK Arkoma, LLC | Arkansas | 0 BBLs | 929,934 MCF | Feb 2022 - Jan 2024 |
| Mobil Oil Exploration & Producing Southeast, Inc. | Alabama | 168 BBLs | 765,928 MCF | Aug 1976 - Nov 2023 |
| Moncrief W A Jr | Wyoming | 1,480 BBLs | 73,959 MCF | Jan 1978 - Feb 2024 |
| Morgan E&P, LLC | North Dakota | 14,686 BBLs | 11,161 MCF | Dec 2023 - Feb 2024 |
| Morningstar Operating LLC | Colorado | 0 BBLs | 235,019 MCF | Jun 2020 - Feb 2024 |
| Morningstar Operating LLC | New Mexico | 121,750 BBLs | 3,616,247 MCF | Sep 2020 - Feb 2024 |
| Mr NM Operating LLC | New Mexico | 59,183 BBLs | 179,292 MCF | Mar 2021 - Jan 2024 |
| Mull Drilling Company Inc | Colorado | 21,427 BBLs | 193,128 MCF | Jan 1999 - Feb 2024 |
| Mull Drilling Company, Inc. | Kansas | 16,488 BBLs | 3,103 MCF | Jan 1980 - Dec 2023 |
| Murchison Oil And Gas, LLC | New Mexico | 25,313 BBLs | 250,667 MCF | Jan 1993 - Feb 2024 |
| Murex Petroleum Corporation | North Dakota | 235,871 BBLs | 424,350 MCF | Apr 2001 - Feb 2024 |
| Murfin Drilling Co., Inc. | Kansas | 83,568 BBLs | 2,519 MCF | Jan 1980 - Dec 2023 |
| Murphrey Oil Company, Inc. | Louisiana | 2,156 BBLs | 0 MCF | Feb 2020 - Jan 2024 |
| Muskegon Operating Company LLC | Michigan | 27,477 BBLs | 382,887 MCF | Jan 2021 - Feb 2024 |
| Mustang Energy Corporation | Kansas | 6,364 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Mustang Resources LLC | New Mexico | 466 BBLs | 106,026 MCF | Sep 2018 - Feb 2024 |
| Mustang Resources LLC | Wyoming | 414 BBLs | 193,539 MCF | Nov 2014 - Feb 2024 |
| Muzyl Oil Corp | Michigan | 0 BBLs | 187,739 MCF | Nov 2016 - Feb 2024 |
| MWK Petroleum, LLC | Kansas | 2,145 BBLs | 0 MCF | Jan 2020 - Dec 2023 |
| Nadel And Gussman LLC | Kansas | 3,659 BBLs | 3,201 MCF | Jan 1980 - Dec 2023 |
| Natural Gas Processing Company | Wyoming | 1,976 BBLs | 15,010 MCF | Feb 1978 - Feb 2024 |
| Navigation Powder River LLC | Wyoming | 27,021 BBLs | 91,462 MCF | Dec 2016 - Feb 2024 |
| Nec Operating - Kansas, LLC | Kansas | 2,891 BBLs | 4,485 MCF | Jan 2020 - Dec 2023 |
| Neptune Operating LLC | North Dakota | 418,857 BBLs | 764,679 MCF | Jan 2023 - Feb 2024 |
| Nevada Oil, LLC | Arkansas | 3,034 BBLs | 0 MCF | Jan 2001 - Feb 2024 |
| New Age Oil LLC | Kansas | 1,586 BBLs | 52 MCF | Feb 1982 - Dec 2023 |
| New Era Petroleum Inc | Wyoming | 2,287 BBLs | 0 MCF | Feb 2010 - Feb 2024 |
| New Horizon Resources LLC | Wyoming | 2,478 BBLs | 2,049 MCF | Jan 2022 - Feb 2024 |
| New Millennium Resources, Inc. | North Dakota | 1,456 BBLs | 86 MCF | Apr 2002 - Feb 2024 |
| Nickel Road Operating LLC | Colorado | 66,507 BBLs | 137,339 MCF | Jul 2018 - Feb 2024 |
| Noble Energy Inc | Colorado | 1,682 BBLs | 33,888 MCF | Jan 1997 - Feb 2024 |
| Norstar Petroleum, Inc. | Kansas | 2,273 BBLs | 40 MCF | Jan 1980 - Dec 2023 |
| North Fork Operating, LP | New Mexico | 3,710 BBLs | 54,674 MCF | Jan 2020 - Jan 2024 |
| North Shore Exploration & Prod LLC | Wyoming | 6,760 BBLs | 756,295 MCF | May 2015 - Feb 2024 |
| North Shore Exploration & Production, LLC | Utah | 178 BBLs | 69,484 MCF | Oct 2019 - Feb 2024 |
| North Silo Resources LLC | Wyoming | 218,147 BBLs | 223,110 MCF | Sep 2019 - Jan 2024 |
| North Slope Borough | Alaska | 0 BBLs | 171,082 MCF | Sep 1950 - Feb 2024 |
| Northern Lights Oil Company, LLC | Kansas | 2,466 BBLs | 548 MCF | Jan 1980 - Dec 2023 |
| Northwestern Corporation | Montana | 166 BBLs | 368,265 MCF | Apr 2004 - Mar 2024 |
| Northwestern Production LLC | North Dakota | 1,342 BBLs | 538 MCF | Jun 2022 - Feb 2024 |
| Northwoods Operating LLC | Wyoming | 128,068 BBLs | 337,494 MCF | Mar 2018 - Feb 2024 |
| Novo Oil & Gas Northern Delaware, LLC | New Mexico | 574,941 BBLs | 3,653,384 MCF | Feb 2018 - Jan 2024 |