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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Oasis Petroleum North America LLC | North Dakota | 2,031,501 BBLs | 5,781,567 MCF | May 2007 - Feb 2025 |
| Occidental Permian LTD | New Mexico | 472,203 BBLs | 1,095,259 MCF | Mar 1997 - Jan 2025 |
| Ogris Operating LLC | Colorado | 0 BBLs | 634,376 MCF | Sep 2020 - Jan 2025 |
| Oil Producers, Inc. Of Kansas | Kansas | 6,698 BBLs | 42,259 MCF | Jan 1980 - Dec 2024 |
| Oildigger Resources Fund L LLLP | Wyoming | 4,651 BBLs | 2,782 MCF | Sep 2016 - Feb 2025 |
| Oilfield Salvage & Service Company | Wyoming | 1,559 BBLs | 1,020 MCF | Jan 1978 - Feb 2025 |
| Oleum Energy LLC | New Mexico | 3,181 BBLs | 0 MCF | Aug 2022 - Jan 2025 |
| Olipdp II, LLC | Louisiana | 14,206 BBLs | 54,310 MCF | Jul 2022 - Dec 2024 |
| Opal Operating Company LLC | New Mexico | 3,648 BBLs | 263,427 MCF | Sep 2021 - Jan 2025 |
| Organic Energy Company LLC | Colorado | 2,553 BBLs | 2,986 MCF | Nov 2020 - Mar 2025 |
| Orx Resources, L.L.C. | Louisiana | 9,403 BBLs | 198,757 MCF | Jan 2010 - Dec 2024 |
| Ovintiv USA Inc | Wyoming | 0 BBLs | 73,498 MCF | Mar 2001 - Feb 2025 |
| Ovintiv USA, Inc. | Utah | 865,410 BBLs | 1,753,705 MCF | Oct 2021 - Jan 2025 |
| Owens Oil Company, LLC | Kansas | 2,058 BBLs | 0 MCF | Jan 2010 - Dec 2024 |
| Owens Petroleum LLC | Kansas | 1,484 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Own Resources Operating LLC | Colorado | 55 BBLs | 893,381 MCF | Jul 2018 - Feb 2025 |
| Own Resources Operating LLC | Kansas | 0 BBLs | 77,259 MCF | Jan 2010 - Dec 2024 |
| Oxy USA Inc | Colorado | 0 BBLs | 218,521 MCF | Jan 1999 - Jan 2025 |
| Oxy USA Inc | New Mexico | 3,927,221 BBLs | 20,316,779 MCF | Jan 1993 - Jan 2025 |
| Oxy USA Inc. | Kansas | 688 BBLs | 13,916 MCF | Jan 1980 - Dec 2024 |
| Oxy USA WTP Limited Partnership | New Mexico | 36,994 BBLs | 229,594 MCF | Jan 2001 - Jan 2025 |
| P O & G Operating LLC | Colorado | 5,324 BBLs | 0 MCF | May 2016 - Jan 2025 |
| P O & G Operating LLC | Wyoming | 12,397 BBLs | 12,610 MCF | Jan 2017 - Jan 2025 |
| P. O. & G. Operating, LLC | Mississippi | 2,321 BBLs | 6,200 MCF | Dec 1976 - Jan 2025 |
| P.O. & G. Operating, LLC | North Dakota | 4,219 BBLs | 1,299 MCF | Jun 2018 - Feb 2025 |
| Palmer Oil, Inc. | Kansas | 2,759 BBLs | 33,320 MCF | Nov 2005 - Dec 2024 |
| Paloma Natural Gas, LLC | Louisiana | 0 BBLs | 12,616,935 MCF | Mar 2022 - Dec 2024 |
| Paloma Permian Assetco, LLC | New Mexico | 2,402 BBLs | 5,728 MCF | Oct 2024 - Jan 2025 |
| Palomino Petroleum, Inc. | Kansas | 28,978 BBLs | 3,403 MCF | Jan 1980 - Dec 2024 |
| Pantera Energy Company | Kansas | 2,500 BBLs | 345 MCF | Jan 2010 - Dec 2024 |
| Paradigm Energy LLC | Louisiana | 2,262 BBLs | 0 MCF | Dec 2014 - Dec 2024 |
| Patterson Energy LLC | Kansas | 26,367 BBLs | 0 MCF | Jan 2010 - Dec 2024 |
| Paul Bowman Oil Trust | Kansas | 1,796 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Pauley Oil | Kansas | 2,518 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Paxton Resources LLC | Michigan | 7,377 BBLs | 57,656 MCF | Dec 1995 - Feb 2025 |
| PDC Energy Inc | Colorado | 2,586,280 BBLs | 25,778,398 MCF | Dec 1999 - Jan 2025 |
| PDS Resources LLC | Wyoming | 3,914 BBLs | 6,296 MCF | Aug 2023 - Jan 2025 |
| Peak Operating LLC | Kansas | 1,806 BBLs | 0 MCF | Jan 2010 - Dec 2024 |
| Peak Powder River Resources LLC | Wyoming | 85,650 BBLs | 363,124 MCF | Jan 2013 - Feb 2025 |
| Peakview Operating Company, LLC | Colorado | 1,402 BBLs | 1,377 MCF | Dec 2012 - Feb 2025 |
| Pennington Oil & Gas Int, LLC | Louisiana | 1,787 BBLs | 344 MCF | May 2001 - Dec 2024 |
| Penroc Oil Corp | New Mexico | 1,367 BBLs | 0 MCF | Jan 1993 - Jan 2025 |
| Perdido Energy Louisiana, LLC | Louisiana | 6,776 BBLs | 71,845 MCF | Dec 2017 - Dec 2024 |
| Permian Resources Operating, LLC | New Mexico | 2,222,295 BBLs | 8,532,078 MCF | Jul 2017 - Jan 2025 |
| Petro Operating Company LLC | Colorado | 26,376 BBLs | 277,202 MCF | Dec 2018 - Jan 2025 |
| 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 | 91,858 BBLs | 171,768 MCF | Dec 2016 - Feb 2025 |
| Petro-Hunt, L.L.C. | Louisiana | 3,950 BBLs | 2,594 MCF | Apr 1998 - Dec 2024 |
| Petro-Hunt, L.L.C. | North Dakota | 874,300 BBLs | 2,595,695 MCF | Feb 1983 - Feb 2025 |