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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Novy Oil & Gas, Inc. | Kansas | 1,316 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| NSP Resources, LLC | New Mexico | 3,712 BBLs | 24,574 MCF | Mar 2026 - Jun 2026 |
| Nuenergy LLC | Michigan | 1,463 BBLs | 58,283 MCF | Jul 2001 - Jul 2026 |
| O'Brien Energy Resources Corp. | Kansas | 3,493 BBLs | 25,521 MCF | May 2008 - Apr 2026 |
| Oasis Petroleum North America LLC | Montana | 58,658 BBLs | 81,897 MCF | Mar 2007 - Jun 2026 |
| Oasis Petroleum North America LLC | North Dakota | 2,041,001 BBLs | 6,296,054 MCF | May 2007 - Jun 2026 |
| Occidental Permian LTD | New Mexico | 377,353 BBLs | 720,681 MCF | Mar 1997 - Jun 2026 |
| Ogris Operating LLC | Colorado | 0 BBLs | 590,162 MCF | Jan 1999 - May 2026 |
| Oil Mountain Energy Inc | Wyoming | 1,178 BBLs | 0 MCF | Oct 2018 - Jul 2026 |
| Oil Producers, Inc. Of Kansas | Kansas | 8,439 BBLs | 52,630 MCF | Jan 1980 - Apr 2026 |
| Oildigger Resources Fund L LLLP | Wyoming | 4,643 BBLs | 2,773 MCF | Sep 2016 - Jul 2026 |
| Oilfield Salvage & Service Company | Wyoming | 2,709 BBLs | 1,440 MCF | Jan 1978 - Jun 2026 |
| Olipdp II, LLC | Louisiana | 14,206 BBLs | 54,310 MCF | Jul 2022 - Dec 2024 |
| Opal Operating Company LLC | New Mexico | 3,549 BBLs | 15,657 MCF | Sep 2021 - Jun 2026 |
| Orx Resources, L.L.C. | Louisiana | 9,403 BBLs | 198,757 MCF | Jan 2010 - Dec 2024 |
| Owens Oil Company, LLC | Kansas | 3,060 BBLs | 0 MCF | Jan 2010 - Apr 2026 |
| Owens Petroleum LLC | Kansas | 2,236 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Own Resources Operating LLC | Colorado | 63 BBLs | 816,860 MCF | Jan 1999 - May 2026 |
| Own Resources Operating LLC | Kansas | 157 BBLs | 74,543 MCF | Jan 2010 - Apr 2026 |
| Oxy USA Inc | Colorado | 0 BBLs | 261,865 MCF | Jan 1999 - May 2026 |
| Oxy USA Inc | New Mexico | 3,453,499 BBLs | 21,408,975 MCF | Jan 1993 - Jun 2026 |
| Oxy USA WTP Limited Partnership | New Mexico | 20,903 BBLs | 186,485 MCF | Jan 2001 - Jun 2026 |
| P O & G Operating LLC | Colorado | 5,589 BBLs | 0 MCF | Jan 1999 - May 2026 |
| P O & G Operating LLC | Wyoming | 10,613 BBLs | 22,978 MCF | Jan 2017 - Jun 2026 |
| P. O. & G. Operating LLC | Mississippi | 4,331 BBLs | 6,497 MCF | Dec 1976 - Jun 2026 |
| P.O. & G. Operating, LLC | North Dakota | 4,358 BBLs | 552 MCF | Jun 2018 - Jun 2026 |
| Palmer Oil, Inc. | Kansas | 4,073 BBLs | 12,204 MCF | Nov 2005 - Apr 2026 |
| Palo Alto Energy, LLC | North Dakota | 2,150 BBLs | 431 MCF | Dec 2025 - Jun 2026 |
| Paloma Natural Gas, LLC | Louisiana | 0 BBLs | 12,616,935 MCF | Mar 2022 - Dec 2024 |
| Paloma Permian Assetco, LLC | New Mexico | 356,335 BBLs | 1,927,270 MCF | Oct 2024 - Jun 2026 |
| Palomino Petroleum, Inc. | Kansas | 30,018 BBLs | 8,162 MCF | Jan 1980 - Apr 2026 |
| Pantera Energy Company | Kansas | 3,631 BBLs | 304 MCF | Jan 2010 - Apr 2026 |
| Paradigm Energy LLC | Louisiana | 2,262 BBLs | 0 MCF | Dec 2014 - Dec 2024 |
| Patterson Energy LLC | Kansas | 59,242 BBLs | 600 MCF | Jan 2010 - Apr 2026 |
| Patterson Operations LLC | Kansas | 1,128 BBLs | 0 MCF | Apr 1982 - Apr 2026 |
| Paul Bowman Oil Trust | Kansas | 1,663 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Paul Rankin Inc. | North Dakota | 1,580 BBLs | 65 MCF | May 2002 - Jun 2026 |
| Pauley Oil | Kansas | 2,422 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Paxton Resources LLC | Michigan | 5,154 BBLs | 0 MCF | Dec 1995 - Jul 2026 |
| Pbex Operations, LLC | New Mexico | 156,256 BBLs | 179,627 MCF | Mar 2025 - Jun 2026 |
| PDC Energy Inc | Colorado | 2,452,037 BBLs | 29,262,456 MCF | Jan 1999 - May 2026 |
| Peak Operating LLC | Kansas | 1,604 BBLs | 0 MCF | Jan 2010 - Apr 2026 |
| Peak Powder River Resources LLC | Wyoming | 66,950 BBLs | 341,477 MCF | Jan 2013 - Jun 2026 |
| Pennington Oil & Gas Int, LLC | Louisiana | 1,787 BBLs | 344 MCF | May 2001 - Dec 2024 |
| Perdido Energy Louisiana, LLC | Louisiana | 6,776 BBLs | 71,845 MCF | Dec 2017 - Dec 2024 |
| Permian Resources Operating, LLC | New Mexico | 4,221,146 BBLs | 15,398,331 MCF | Jul 2017 - Jun 2026 |
| Petro Operating Company LLC | Colorado | 53,141 BBLs | 801,694 MCF | Jan 1999 - May 2026 |
| Petro-Chem Operating Company, Inc. | Louisiana | 3,046 BBLs | 87,053 MCF | Jan 2009 - Dec 2024 |
| Petro-Guard Production, L.L.C. | Louisiana | 3,804 BBLs | 1,779 MCF | Jan 1998 - Dec 2024 |
| Petro-Hunt Dakota, LLC | North Dakota | 76,627 BBLs | 119,687 MCF | Dec 2016 - Jun 2026 |