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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Missaukee Oil And Gas Company LLC | Michigan | 6,407 BBLs | 5,261 MCF | Sep 2019 - Jul 2024 |
| Mission Creek Opco, LLC | Arkansas | 40,657 BBLs | 140,978 MCF | Oct 2018 - Jul 2024 |
| Missouri River Resources ND, LLC | North Dakota | 7,186 BBLs | 31,488 MCF | Nov 2014 - Sep 2024 |
| MMGK Arkoma, LLC | Arkansas | 0 BBLs | 904,203 MCF | Feb 2022 - Jun 2024 |
| Mobil Oil Exploration & Producing Southeast, Inc. | Alabama | 292 BBLs | 770,130 MCF | Aug 1976 - Jun 2024 |
| Mogo Reagan, LLC | Montana | 3,061 BBLs | 9,715 MCF | Nov 2019 - Sep 2024 |
| Molitor Oil, Inc. | Kansas | 951 BBLs | 5,727 MCF | Jan 1980 - Jul 2024 |
| Moncrief W A Jr | Wyoming | 1,171 BBLs | 62,523 MCF | Jan 1978 - Sep 2024 |
| Montalban Oil & Gas Operations, Inc. | Montana | 1,390 BBLs | 12,143 MCF | Jan 1991 - Sep 2024 |
| Morningstar Operating LLC | Colorado | 0 BBLs | 215,996 MCF | Jun 2020 - Sep 2024 |
| Morningstar Operating LLC | Montana | 78,768 BBLs | 98,632 MCF | Aug 2024 - Sep 2024 |
| Mosbacher Energy Company | Mississippi | 14,906 BBLs | 6,668 MCF | Dec 1976 - Aug 2024 |
| Mr NM Operating LLC | New Mexico | 12,790 BBLs | 45,182 MCF | Mar 2021 - Sep 2024 |
| MTM Petroleum, Inc. | Kansas | 1,173 BBLs | 11,794 MCF | Jan 1980 - Jul 2024 |
| Mull Drilling Company Inc | Colorado | 23,608 BBLs | 316,345 MCF | Jan 1999 - Aug 2024 |
| Mull Drilling Company, Inc. | Kansas | 18,382 BBLs | 2,258 MCF | Jan 1980 - Jul 2024 |
| Murchison Oil And Gas, LLC | New Mexico | 19,721 BBLs | 217,494 MCF | Jan 1993 - Sep 2024 |
| Murex Petroleum Corporation | North Dakota | 183,089 BBLs | 531,045 MCF | Apr 2001 - Sep 2024 |
| Murfin Drilling Co., Inc. | Kansas | 84,006 BBLs | 1,589 MCF | Jan 1980 - Jul 2024 |
| Murphrey Oil Company, Inc. | Louisiana | 3,322 BBLs | 0 MCF | Feb 2020 - Jul 2024 |
| Muskegon Operating Company LLC | Michigan | 27,864 BBLs | 366,664 MCF | Jan 2021 - Aug 2024 |
| Mustang Energy Corporation | Kansas | 3,673 BBLs | 0 MCF | Jan 1980 - Jul 2024 |
| Mustang Resources LLC | Wyoming | 994 BBLs | 140,958 MCF | Nov 2014 - Sep 2024 |
| Muzyl Oil Corp | Michigan | 251 BBLs | 195,039 MCF | Nov 2016 - Aug 2024 |
| MWK Petroleum, LLC | Kansas | 2,075 BBLs | 0 MCF | Jan 2020 - Jul 2024 |
| Nadel And Gussman LLC | Kansas | 2,110 BBLs | 2,981 MCF | Jan 1980 - Jul 2024 |
| Nadel And Gussman Ruston, LLC | Louisiana | 7,101 BBLs | 1,136,852 MCF | Mar 2012 - Jun 2024 |
| Natural Gas Processing Company | Wyoming | 1,309 BBLs | 14,845 MCF | Feb 1978 - Sep 2024 |
| Nautilus Poplar LLC | Montana | 1,297 BBLs | 0 MCF | Jun 2007 - Sep 2024 |
| Navigation Powder River LLC | Wyoming | 19,239 BBLs | 67,111 MCF | Dec 2016 - Sep 2024 |
| Nec Operating - Kansas, LLC | Kansas | 2,679 BBLs | 3,691 MCF | Jan 2020 - Jul 2024 |
| Neptune Operating LLC | Montana | 1,197 BBLs | 1,726 MCF | Oct 2022 - Sep 2024 |
| Neptune Operating LLC | North Dakota | 887,748 BBLs | 2,004,415 MCF | Jan 2023 - Sep 2024 |
| Nevada Oil, LLC | Arkansas | 3,128 BBLs | 0 MCF | Jan 2001 - Jul 2024 |
| New Age Oil LLC | Kansas | 1,568 BBLs | 82 MCF | Feb 1982 - Jul 2024 |
| New Era Petroleum Inc | Wyoming | 2,404 BBLs | 0 MCF | Feb 2010 - Sep 2024 |
| New Horizon Resources LLC | Kansas | 1,154 BBLs | 4,094 MCF | Jan 2020 - Jul 2024 |
| New Horizon Resources LLC | Montana | 5,290 BBLs | 817 MCF | Feb 2022 - Sep 2024 |
| New Millennium Resources, Inc. | North Dakota | 1,334 BBLs | 82 MCF | Apr 2002 - Sep 2024 |
| Nickel Road Operating LLC | Colorado | 51,081 BBLs | 168,709 MCF | Jul 2018 - Aug 2024 |
| Noble Energy Inc | Colorado | 2,441,164 BBLs | 18,233,286 MCF | Jan 1997 - Aug 2024 |
| Norstar Petroleum, Inc. | Kansas | 1,273 BBLs | 49 MCF | Jan 1980 - Jul 2024 |
| North Fork Operating, LP | New Mexico | 3,917 BBLs | 38,084 MCF | Jan 2020 - Sep 2024 |
| North Shore Exploration & Prod LLC | Wyoming | 16,486 BBLs | 804,344 MCF | May 2015 - Sep 2024 |
| North Shore Exploration & Production, LLC | Utah | 240 BBLs | 39,100 MCF | Oct 2019 - Sep 2024 |
| North Silo Resources LLC | Wyoming | 218,562 BBLs | 253,070 MCF | Sep 2019 - Sep 2024 |
| North Slope Borough | Alaska | 0 BBLs | 88,162 MCF | Sep 1950 - Sep 2024 |
| Northern Lights Oil Company, LLC | Kansas | 1,288 BBLs | 564 MCF | Jan 1980 - Jul 2024 |
| Northern Oil Production, Inc. | Montana | 5,861 BBLs | 1,953 MCF | May 1992 - Sep 2024 |
| Northwestern Corporation | Montana | 800 BBLs | 368,008 MCF | Apr 2004 - Sep 2024 |