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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Hughes Eastern Corporation | Alabama | 1,655 BBLs | 7,561 MCF | Sep 1977 - Jun 2025 |
| Hunt Oil Company | North Dakota | 506,069 BBLs | 463,184 MCF | Aug 1956 - Jul 2025 |
| Huntington Energy LLC | Wyoming | 2,743 BBLs | 1,496 MCF | Dec 2006 - Jul 2025 |
| Huntington Energy, LLC | New Mexico | 0 BBLs | 40,850 MCF | Apr 2003 - Jun 2025 |
| Hyperion Oil & Gas LLC | Wyoming | 6,449 BBLs | 40,107 MCF | Feb 2010 - Jul 2025 |
| Ia Operating, Inc. | Kansas | 6,924 BBLs | 0 MCF | Apr 1997 - May 2025 |
| Iacx Production LLC | New Mexico | 24 BBLs | 295,737 MCF | Apr 2020 - Jun 2025 |
| Igwt, Inc. | Kansas | 1,344 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Impact Energy Operating LLC | Wyoming | 20,744 BBLs | 0 MCF | Aug 2022 - Jul 2025 |
| Impact Exploration & Production LLC | Wyoming | 96,319 BBLs | 230,988 MCF | Apr 2018 - Jul 2025 |
| Impetro Resources LLC | Colorado | 11,927 BBLs | 0 MCF | Mar 2018 - Aug 2025 |
| Indian Exploration, Inc. | Louisiana | 1,621 BBLs | 0 MCF | Feb 1992 - Jan 2025 |
| Indian Oil Co., Inc. | Kansas | 5,790 BBLs | 30,718 MCF | Jan 1980 - May 2025 |
| Investment Equipment LLC | Colorado | 1,600 BBLs | 295 MCF | Apr 2010 - Jul 2025 |
| J & J Investments, LLC | New Mexico | 1,571 BBLs | 0 MCF | May 2022 - Jun 2025 |
| J R Oil, LTD. Co. | New Mexico | 17,960 BBLs | 135,970 MCF | Dec 2007 - Jul 2025 |
| J-V Oil, LLC | Kansas | 1,560 BBLs | 1,037 MCF | Jan 1980 - May 2025 |
| J. P. Van Way | Louisiana | 10,876 BBLs | 20,979 MCF | Jul 1981 - Dec 2024 |
| J. R. Pounds, Inc. | Mississippi | 2,785 BBLs | 130 MCF | Nov 1976 - Jul 2025 |
| Jabsco Oil Operating, LLC | Alabama | 616 BBLs | 43,762 MCF | Feb 1977 - Jun 2025 |
| Jack L. Phillips Co. | Mississippi | 3,874 BBLs | 1,040 MCF | Dec 1976 - Jul 2025 |
| James Drilling Co., Inc. | Louisiana | 3,109 BBLs | 0 MCF | Oct 1986 - Dec 2024 |
| James P. Williams Enterprises, Inc. | Kansas | 2,318 BBLs | 0 MCF | Feb 2010 - May 2025 |
| Jason Oil Company, LLC | Kansas | 6,539 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Jaspar Co. | Kansas | 4,843 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Jay Management Company, LLC | New Mexico | 387 BBLs | 21,067 MCF | Mar 2007 - Jul 2025 |
| Jimmy P Dempsey | Louisiana | 3,436 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Jody Oil & Gas Corporation | Kansas | 510 BBLs | 19,090 MCF | Jan 1980 - May 2025 |
| Joemar Wyoming Operating LLC | Wyoming | 3,049 BBLs | 2,390 MCF | Dec 2023 - Jul 2025 |
| John J. Welsh | Louisiana | 2,799 BBLs | 38,045 MCF | Dec 1988 - Dec 2024 |
| John Roy Evans Oil Company LLC | Kansas | 1,782 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Jonah Energy LLC | New Mexico | 346,113 BBLs | 4,353,731 MCF | Feb 2025 - Jul 2025 |
| Jonah Energy LLC | Wyoming | 73,144 BBLs | 8,564,158 MCF | Jun 2014 - Jun 2025 |
| Jones & Buck Development, LLC | Kansas | 3,997 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Jones Oil Exploration, LLC | Kansas | 1,305 BBLs | 0 MCF | Jan 2010 - May 2025 |
| Jones Oil, LLC | Kansas | 1,291 BBLs | 766 MCF | Jan 1980 - May 2025 |
| Jordan Development Company LLC | Michigan | 4,081 BBLs | 185,141 MCF | Feb 1982 - Jun 2025 |
| Jordan Oil Management Inc. | Kansas | 2,905 BBLs | 1,293 MCF | Jan 1980 - May 2025 |
| JP Oil Wyoming LLC | Wyoming | 3,381 BBLs | 13,713 MCF | Jan 1993 - Jul 2025 |
| JSB, LLC | Louisiana | 3,742 BBLs | 0 MCF | Mar 2000 - Dec 2024 |
| JTC Oil, Inc. | Kansas | 1,839 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Justiss Oil Company, Inc. | Louisiana | 5,227 BBLs | 24,749 MCF | Mar 1981 - Dec 2024 |
| K & N Petroleum, Inc. | Kansas | 4,482 BBLs | 0 MCF | Jan 1980 - May 2025 |
| K&M Resources LLC | New Mexico | 1,756 BBLs | 203 MCF | Apr 2021 - Jul 2025 |
| K-Bar Oil LLC | Kansas | 2,218 BBLs | 0 MCF | Jan 2010 - May 2025 |
| Kahan And Associates, Inc | Kansas | 6,161 BBLs | 0 MCF | Jan 1980 - May 2025 |
| Kaiser Francis Oil Co | Wyoming | 3,975 BBLs | 56,783 MCF | Jan 1983 - Jul 2025 |
| Kaiser-Francis Oil Co | New Mexico | 1,210,854 BBLs | 4,542,745 MCF | Jan 1993 - Jul 2025 |
| Kansas Crude Investments LLC | Kansas | 1,425 BBLs | 0 MCF | Jan 2010 - May 2025 |
| Kansas Natural Gas Operating, LC | Kansas | 0 BBLs | 98,338 MCF | Jan 2010 - May 2025 |