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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Hilcorp Energy Company | Colorado | 55 BBLs | 1,949,315 MCF | Jan 1999 - Jul 2026 |
| Hilcorp Energy Company | New Mexico | 202,335 BBLs | 26,414,066 MCF | Aug 2017 - Aug 2026 |
| Hilcorp Energy Company | Wyoming | 25,295 BBLs | 3,755,534 MCF | Jun 1997 - Aug 2026 |
| Hilcorp Energy Company, Inc. | Alabama | 21,177 BBLs | 160,311 MCF | Oct 1976 - Aug 2026 |
| Hillenburg Oil Co., A General Partnership | Kansas | 2,603 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| HK Eagle LLC | Montana | 1,276 BBLs | 0 MCF | Sep 2025 - Aug 2026 |
| Howell Oil Company, Inc. | Kansas | 2,430 BBLs | 0 MCF | Jul 1985 - Jun 2026 |
| Hughes Eastern Corporation | Alabama | 2,282 BBLs | 7,067 MCF | Sep 1977 - Aug 2026 |
| Hunt Oil Company | North Dakota | 639,054 BBLs | 606,393 MCF | Aug 1956 - Aug 2026 |
| Huntington Energy LLC | Wyoming | 2,997 BBLs | 1,214 MCF | Dec 2006 - Sep 2026 |
| Hyperion Oil & Gas LLC | Wyoming | 5,824 BBLs | 20,527 MCF | Feb 2010 - Aug 2026 |
| Ia Operating, Inc. | Kansas | 5,642 BBLs | 0 MCF | Apr 1997 - Jun 2026 |
| Iacx Production LLC | New Mexico | 74 BBLs | 262,453 MCF | Apr 2020 - Aug 2026 |
| Impact Energy Operating LLC | Wyoming | 18,792 BBLs | 0 MCF | Aug 2022 - Aug 2026 |
| Impetro Resources LLC | Colorado | 16,353 BBLs | 437 MCF | Jan 1999 - Aug 2026 |
| Indian Exploration, Inc. | Louisiana | 1,621 BBLs | 0 MCF | Feb 1992 - Jan 2025 |
| Indian Oil Co., Inc. | Kansas | 4,649 BBLs | 31,908 MCF | Jan 1980 - Jun 2026 |
| Investment Equipment LLC | Colorado | 1,549 BBLs | 295 MCF | Jan 1999 - Aug 2026 |
| Iron Oil Operating, LLC | North Dakota | 20,298 BBLs | 6,972 MCF | Jun 2017 - Aug 2026 |
| J R Oil, LTD. Co. | New Mexico | 16,285 BBLs | 124,784 MCF | Dec 2007 - Aug 2026 |
| J-V Oil, LLC | Kansas | 2,533 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| J. P. Van Way | Louisiana | 10,876 BBLs | 20,979 MCF | Jul 1981 - Dec 2024 |
| J. R. Pounds, Inc. | Mississippi | 2,670 BBLs | 160 MCF | Nov 1976 - Aug 2026 |
| Jabsco Oil Operating, LLC | Alabama | 386 BBLs | 43,118 MCF | Feb 1977 - Aug 2026 |
| Jack L. Phillips Co. | Mississippi | 3,573 BBLs | 1,022 MCF | Dec 1976 - Aug 2026 |
| James Drilling Co., Inc. | Louisiana | 3,109 BBLs | 0 MCF | Oct 1986 - Dec 2024 |
| James P. Williams Enterprises, Inc. | Kansas | 1,523 BBLs | 0 MCF | Feb 2010 - Jun 2026 |
| Jason Oil Company, LLC | Kansas | 5,632 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Jaspar Co. | Kansas | 6,533 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Jel Resources, LLC | Kansas | 1,441 BBLs | 2,768 MCF | Feb 2018 - Jun 2026 |
| Jettison, Inc. | North Dakota | 1,351 BBLs | 1,876 MCF | Jul 2002 - Aug 2026 |
| Jimmy P Dempsey | Louisiana | 3,436 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Joe Gerstner Oil, LLC | Kansas | 1,582 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Joemar Wyoming Operating LLC | Wyoming | 4,343 BBLs | 2,803 MCF | Dec 2023 - Aug 2026 |
| John J. Welsh | Louisiana | 2,799 BBLs | 38,045 MCF | Dec 1988 - Dec 2024 |
| John Roy Evans Oil Company LLC | Kansas | 2,071 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Jonah Energy LLC | New Mexico | 254,804 BBLs | 3,708,117 MCF | Mar 2025 - Aug 2026 |
| Jonah Energy LLC | Wyoming | 75,304 BBLs | 9,357,633 MCF | Jun 2014 - Aug 2026 |
| Jones & Buck Development, LLC | Kansas | 3,285 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Jordan Development Company LLC | Michigan | 2,855 BBLs | 173,836 MCF | Feb 1982 - Aug 2026 |
| Jordan Oil Management Inc. | Kansas | 2,179 BBLs | 579 MCF | Jan 1980 - Jun 2026 |
| JP Oil Wyoming LLC | Wyoming | 3,863 BBLs | 9,941 MCF | Jan 1993 - Sep 2026 |
| JSB, LLC | Louisiana | 3,742 BBLs | 0 MCF | Mar 2000 - Dec 2024 |
| JTC Oil, Inc. | Kansas | 1,859 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| Justiss Oil Company, Inc. | Louisiana | 5,227 BBLs | 24,749 MCF | Mar 1981 - Dec 2024 |
| K & N Petroleum, Inc. | Kansas | 5,641 BBLs | 0 MCF | Jan 1980 - Jun 2026 |
| K P Kauffman Company Inc | Colorado | 7,265 BBLs | 53,723 MCF | Jan 1999 - Jul 2026 |
| K&M Resources LLC | New Mexico | 1,430 BBLs | 0 MCF | Apr 2021 - Aug 2026 |
| K-Bar Oil LLC | Kansas | 2,671 BBLs | 0 MCF | Jan 2010 - Jun 2026 |
| Kahan And Associates, Inc | Kansas | 5,198 BBLs | 0 MCF | Jan 1980 - Jun 2026 |