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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Oil Mountain Energy Inc | Wyoming | 1,036 BBLs | 0 MCF | Oct 2018 - Feb 2026 |
| Oil Producers, Inc. Of Kansas | Kansas | 7,631 BBLs | 49,630 MCF | Jan 1980 - Dec 2025 |
| Oildigger Resources Fund L LLLP | Wyoming | 7,766 BBLs | 4,610 MCF | Sep 2016 - Feb 2026 |
| Oilfield Salvage & Service Company | Wyoming | 2,046 BBLs | 1,800 MCF | Jan 1978 - Jan 2026 |
| Oleum Energy LLC | New Mexico | 2,495 BBLs | 0 MCF | Aug 2022 - Jan 2026 |
| Olipdp II, LLC | Louisiana | 14,206 BBLs | 54,310 MCF | Jul 2022 - Dec 2024 |
| Omimex Energy Inc | Michigan | 6,120 BBLs | 19,049 MCF | Jan 1982 - Aug 2025 |
| Opal Operating Company LLC | New Mexico | 3,387 BBLs | 121,640 MCF | Sep 2021 - Jan 2026 |
| Organic Energy Company LLC | Colorado | 2,421 BBLs | 2,710 MCF | Jul 2007 - Feb 2026 |
| Orx Resources, L.L.C. | Louisiana | 9,403 BBLs | 198,757 MCF | Jan 2010 - Dec 2024 |
| Owen'S Pumping Service | Kansas | 1,214 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Owens Oil Company, LLC | Kansas | 2,914 BBLs | 0 MCF | Jan 2010 - Dec 2025 |
| Owens Petroleum LLC | Kansas | 1,285 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Own Resources Operating LLC | Colorado | 55 BBLs | 838,314 MCF | Jan 1999 - Jan 2026 |
| Own Resources Operating LLC | Kansas | 300 BBLs | 74,141 MCF | Jan 2010 - Dec 2025 |
| Oxy USA Inc | Colorado | 0 BBLs | 222,350 MCF | Jan 1999 - Jan 2026 |
| Oxy USA Inc | New Mexico | 3,363,573 BBLs | 22,199,864 MCF | Jan 1993 - Jan 2026 |
| Oxy USA Inc. | Kansas | 687 BBLs | 14,456 MCF | Jan 1980 - Dec 2025 |
| Oxy USA WTP Limited Partnership | New Mexico | 28,400 BBLs | 228,093 MCF | Jan 2001 - Jan 2026 |
| P. O. & G. Operating LLC | Mississippi | 2,565 BBLs | 6,820 MCF | Dec 1976 - Jan 2026 |
| P.O. & G. Operating, LLC | North Dakota | 3,844 BBLs | 1,555 MCF | Jun 2018 - Feb 2026 |
| P.O.&G. Operating, LLC | Kansas | 1,205 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Palmer Oil, Inc. | Kansas | 2,697 BBLs | 22,350 MCF | Nov 2005 - Dec 2025 |
| Palo Alto Energy, LLC | North Dakota | 1,084 BBLs | 0 MCF | Dec 2025 - Feb 2026 |
| Paloma Natural Gas, LLC | Louisiana | 0 BBLs | 12,616,935 MCF | Mar 2022 - Dec 2024 |
| Palomino Petroleum, Inc. | Kansas | 25,074 BBLs | 116 MCF | Jan 1980 - Dec 2025 |
| Pantera Energy Company | Kansas | 4,120 BBLs | 353 MCF | Jan 2010 - Dec 2025 |
| Paradigm Energy LLC | Louisiana | 2,262 BBLs | 0 MCF | Dec 2014 - Dec 2024 |
| Patterson Energy LLC | Kansas | 48,160 BBLs | 883 MCF | Jan 2010 - Dec 2025 |
| Patterson Operations LLC | Kansas | 1,120 BBLs | 0 MCF | Apr 1982 - Dec 2025 |
| Paul Bowman Oil Trust | Kansas | 1,299 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Pauley Oil | Kansas | 3,277 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Paxton Resources LLC | Michigan | 6,579 BBLs | 0 MCF | Dec 1995 - Sep 2025 |
| Pbex Operations, LLC | New Mexico | 29,401 BBLs | 39,568 MCF | Mar 2025 - Jan 2026 |
| PDC Energy Inc | Colorado | 1,954,591 BBLs | 27,289,668 MCF | Jan 1999 - Jan 2026 |
| PDS Resources LLC | Wyoming | 4,163 BBLs | 6,646 MCF | Aug 2023 - Jan 2026 |
| Peak Operating LLC | Kansas | 1,931 BBLs | 0 MCF | Jan 2010 - Dec 2025 |
| Peak Powder River Resources LLC | Wyoming | 77,515 BBLs | 365,959 MCF | Jan 2013 - Jan 2026 |
| Peakview Operating Company, LLC | Colorado | 1,112 BBLs | 169 MCF | Jan 1999 - Jan 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 | 1,210,404 BBLs | 6,524,273 MCF | Jul 2017 - Jan 2026 |
| Petro Mex LLC | New Mexico | 151 BBLs | 33,763 MCF | Sep 2005 - Jan 2026 |
| Petro Operating Company LLC | Colorado | 83,130 BBLs | 845,681 MCF | Jan 1999 - Jan 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 | 69,992 BBLs | 96,798 MCF | Dec 2016 - Feb 2026 |
| Petro-Hunt, L.L.C. | Louisiana | 3,950 BBLs | 2,594 MCF | Apr 1998 - Dec 2024 |
| Petro-Hunt, L.L.C. | North Dakota | 1,091,519 BBLs | 3,132,587 MCF | Feb 1983 - Feb 2026 |
| Petrogulf Corporation | North Dakota | 4,531 BBLs | 17,135 MCF | Dec 2013 - Feb 2026 |