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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Mobil Oil Exploration & Producing Southeast, Inc. | Alabama | 475 BBLs | 841,061 MCF | Aug 1976 - Dec 2022 |
| Mogo Reagan, LLC | Montana | 3,354 BBLs | 7,877 MCF | Nov 2019 - Jan 2023 |
| Molitor Oil, Inc. | Kansas | 1,290 BBLs | 3,627 MCF | Jan 1980 - Nov 2022 |
| Moncrief W A Jr | Wyoming | 1,532 BBLs | 89,358 MCF | Jan 1978 - Jan 2023 |
| Montalban Oil & Gas Operations, Inc. | Montana | 2,565 BBLs | 0 MCF | Jan 1991 - Jan 2023 |
| Morningstar Operating LLC | New Mexico | 132,035 BBLs | 3,565,741 MCF | Sep 2020 - Jan 2023 |
| Mr NM Operating LLC | New Mexico | 66,342 BBLs | 178,171 MCF | Mar 2021 - Jan 2023 |
| MTM Petroleum, Inc. | Kansas | 660 BBLs | 22,244 MCF | Jan 1980 - Nov 2022 |
| Mull Drilling Company Inc | Colorado | 27,034 BBLs | 276,054 MCF | Jan 1999 - Jan 2023 |
| Mull Drilling Company, Inc. | Kansas | 19,972 BBLs | 26,606 MCF | Jan 1980 - Nov 2022 |
| Murchison Oil And Gas, LLC | New Mexico | 34,333 BBLs | 315,647 MCF | Jan 1993 - Jan 2023 |
| Murex Petroleum Corporation | North Dakota | 154,214 BBLs | 242,764 MCF | Apr 2001 - Jan 2023 |
| Murfin Drilling Co., Inc. | Kansas | 82,177 BBLs | 1,866 MCF | Jan 1980 - Nov 2022 |
| Murphrey Oil Company, Inc. | Louisiana | 2,640 BBLs | 0 MCF | Feb 2020 - Nov 2022 |
| Muskegon Development Company | Michigan | 1,005 BBLs | 67,682 MCF | Jan 1982 - May 2022 |
| Muskegon Operating Company LLC | Michigan | 24,497 BBLs | 313,513 MCF | Jan 2021 - May 2022 |
| Mustang Energy Corporation | Kansas | 4,717 BBLs | 0 MCF | Jan 1980 - Nov 2022 |
| Mustang Resources LLC | New Mexico | 711 BBLs | 111,046 MCF | Sep 2018 - Jan 2023 |
| Mustang Resources LLC | Wyoming | 656 BBLs | 191,501 MCF | Nov 2014 - Jan 2023 |
| Muzyl Oil Corp | Michigan | 0 BBLs | 61,774 MCF | Nov 2016 - May 2022 |
| MWK Petroleum, LLC | Kansas | 2,330 BBLs | 0 MCF | Jan 2020 - Nov 2022 |
| N-10 Exploration, LLC | Kansas | 947 BBLs | 60,481 MCF | Jan 2010 - Nov 2022 |
| Nadel And Gussman LLC | Kansas | 3,758 BBLs | 3,881 MCF | Jan 1980 - Nov 2022 |
| Nadel And Gussman Ruston, LLC | Louisiana | 11,145 BBLs | 1,973,393 MCF | Mar 2012 - Oct 2022 |
| Natural Gas Processing Company | Wyoming | 2,582 BBLs | 13,871 MCF | Feb 1978 - Feb 2023 |
| Nautilus Poplar LLC | Montana | 6,158 BBLs | 0 MCF | Jun 2007 - Jan 2023 |
| Navigation Powder River LLC | Wyoming | 45,220 BBLs | 94,771 MCF | Dec 2016 - Jan 2023 |
| Nec Operating - Kansas, LLC | Kansas | 1,258 BBLs | 3,195 MCF | Jan 2020 - Nov 2022 |
| Neptune Operating LLC | North Dakota | 274,170 BBLs | 626,864 MCF | Jan 2023 - Jan 2023 |
| Nevada Oil, LLC | Arkansas | 2,462 BBLs | 0 MCF | Jan 2001 - Jul 2022 |
| New Age Oil LLC | Kansas | 1,608 BBLs | 80 MCF | Feb 1982 - Nov 2022 |
| New Era Petroleum Inc | Wyoming | 1,591 BBLs | 0 MCF | Feb 2010 - Jan 2023 |
| New Horizon Resources LLC | Montana | 9,210 BBLs | 37 MCF | Nov 1899 - Jan 2023 |
| New Horizon Resources LLC | Wyoming | 2,396 BBLs | 2,110 MCF | Jan 2022 - Jan 2023 |
| Nitro Oil & Gas, LLC | New Mexico | 1,523 BBLs | 944 MCF | Feb 2022 - Jan 2023 |
| Nnogc Exploration & Production, LLC | Utah | 7,560 BBLs | 4,054 MCF | Nov 2012 - Jan 2023 |
| Noble Energy Inc | Colorado | 2,069,461 BBLs | 15,410,132 MCF | Jan 1997 - Jan 2023 |
| Norstar Petroleum, Inc. | Kansas | 3,724 BBLs | 3,019 MCF | Jan 1980 - Nov 2022 |
| North Fork Operating, LP | New Mexico | 3,783 BBLs | 56,301 MCF | Jan 2020 - Jan 2023 |
| North Shore Exploration & Prod LLC | Wyoming | 2,755 BBLs | 676,081 MCF | May 2015 - Jan 2023 |
| North Shore Exploration & Production, LLC | Utah | 1,229 BBLs | 89,680 MCF | Oct 2019 - Jan 2023 |
| North Silo Resources LLC | Wyoming | 175,320 BBLs | 173,652 MCF | Sep 2019 - Jan 2023 |
| North Slope Borough | Alaska | 0 BBLs | 174,428 MCF | Sep 1950 - Feb 2023 |
| Northern Lights Oil Company, LLC | Kansas | 2,447 BBLs | 620 MCF | Jan 1980 - Nov 2022 |
| Northern Oil Production, Inc. | Montana | 6,997 BBLs | 2,857 MCF | May 1992 - Jan 2023 |
| Northwestern Corporation | Montana | 228 BBLs | 420,624 MCF | Apr 2004 - Jan 2023 |
| Northwestern Production LLC | North Dakota | 2,005 BBLs | 815 MCF | Jun 2022 - Jan 2023 |
| Northwoods Operating LLC | Wyoming | 126,533 BBLs | 357,940 MCF | Mar 2018 - Jan 2023 |
| Novo Oil & Gas Northern Delaware, LLC | New Mexico | 687,055 BBLs | 3,903,218 MCF | Feb 2018 - Jan 2023 |
| Nu Energy Operating Inc | Michigan | 0 BBLs | 82,160 MCF | Jul 2001 - Apr 2022 |