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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Greylock Production, LLC | Utah | 16,886 BBLs | 1,044,096 MCF | Apr 2022 - Feb 2025 |
| Griffin & Griffin Expl, LLC | Louisiana | 2,331 BBLs | 0 MCF | Feb 2007 - Dec 2024 |
| Griffin, Charles N. | Kansas | 18,839 BBLs | 18,195 MCF | Jun 1980 - Dec 2024 |
| Gulf Production Company, Inc. | Louisiana | 1,398 BBLs | 0 MCF | Apr 1992 - Dec 2024 |
| Gunnison Energy LLC | Colorado | 0 BBLs | 437,938 MCF | Jul 2014 - Feb 2025 |
| H & B Petroleum Corp. | Kansas | 6,866 BBLs | 843 MCF | Jan 1980 - Dec 2024 |
| H & C Oil Operating Inc. | Kansas | 5,221 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| H & D Exploration LLC | Kansas | 1,513 BBLs | 3,230 MCF | May 1983 - Dec 2024 |
| H L Brown Operating, LLC | New Mexico | 6,142 BBLs | 18,364 MCF | Jun 2001 - Feb 2025 |
| H R F Exploration And Production LLC | Michigan | 0 BBLs | 121,750 MCF | Jan 2006 - Feb 2025 |
| Hale Oil | Louisiana | 1,585 BBLs | 0 MCF | Jan 1995 - Dec 2024 |
| Hale Oil Co. | Louisiana | 1,611 BBLs | 0 MCF | Apr 1985 - Jan 2025 |
| Hanson Operating Co Inc | New Mexico | 1,988 BBLs | 7,167 MCF | Jan 1993 - Feb 2025 |
| Hartman Oil Co., Inc. | Kansas | 18,965 BBLs | 12,123 MCF | Jan 1980 - Dec 2024 |
| Harvard Petroleum Company, LLC | New Mexico | 50,205 BBLs | 199,607 MCF | Jan 1993 - Feb 2025 |
| Harvest Petroleum Partners, LLC | New Mexico | 1,119 BBLs | 746 MCF | Mar 2024 - Feb 2025 |
| Hawkins Oil, LLC | Kansas | 1,916 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Hayes Oil & Gas LLC | Kansas | 632 BBLs | 11,132 MCF | Jan 1980 - Dec 2024 |
| Henergy Oil & Gas LLC | Louisiana | 1,623 BBLs | 0 MCF | Mar 2019 - Jan 2025 |
| Herman L. Loeb, LLC | Kansas | 24,609 BBLs | 116,429 MCF | Jan 1980 - Dec 2024 |
| Hertel Oil Company LLC | Kansas | 1,485 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Hess Bakken Investments II, LLC | North Dakota | 2,626,565 BBLs | 10,364,157 MCF | Jan 2014 - Feb 2025 |
| Hess Oil Company | Kansas | 5,738 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| HG Oil Holdings, LLC | Kansas | 15,944 BBLs | 654 MCF | Jan 2020 - Dec 2024 |
| High River Resources Operating, LLC | New Mexico | 4,515 BBLs | 380,207 MCF | Nov 2023 - Feb 2025 |
| Hilcorp Alaska, LLC | Alaska | 2,417,316 BBLs | 35,627,281 MCF | May 2006 - Mar 2025 |
| Hilcorp Energy Company | New Mexico | 66,778 BBLs | 21,846,978 MCF | Aug 2017 - Feb 2025 |
| Hilcorp Energy Company | Wyoming | 23,152 BBLs | 2,979,919 MCF | Jun 1997 - Feb 2025 |
| Hilcorp Energy Company, Inc. | Alabama | 9,941 BBLs | 34,761 MCF | Oct 1976 - Feb 2025 |
| Hilcorp North Slope, LLC | Alaska | 5,910,833 BBLs | 249,720,615 MCF | Jan 2019 - Mar 2025 |
| Hillenburg Oil Co., A General Partnership | Kansas | 1,289 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Howell Oil Company, Inc. | Kansas | 2,299 BBLs | 0 MCF | Jul 1985 - Dec 2024 |
| Hudson Oil Company Of Texas | New Mexico | 1,999 BBLs | 4,314 MCF | Jan 1993 - Feb 2025 |
| Hughes Eastern Corporation | Alabama | 2,051 BBLs | 6,262 MCF | Sep 1977 - Feb 2025 |
| Hunt Oil Company | North Dakota | 399,602 BBLs | 321,410 MCF | Aug 1956 - Feb 2025 |
| Huntington Energy LLC | Wyoming | 2,612 BBLs | 3,428 MCF | Dec 2006 - Feb 2025 |
| Huntington Energy, LLC | New Mexico | 142 BBLs | 40,265 MCF | Apr 2003 - Feb 2025 |
| Hyperion Oil & Gas LLC | Wyoming | 4,947 BBLs | 39,629 MCF | Feb 2010 - Feb 2025 |
| Ia Operating, Inc. | Kansas | 6,138 BBLs | 0 MCF | Apr 1997 - Dec 2024 |
| Iacx Production LLC | New Mexico | 81 BBLs | 259,136 MCF | Apr 2020 - Feb 2025 |
| Impact Energy Operating LLC | Wyoming | 18,625 BBLs | 0 MCF | Aug 2022 - Feb 2025 |
| Impact Exploration & Production LLC | Wyoming | 108,066 BBLs | 239,213 MCF | Apr 2018 - Feb 2025 |
| Impetro Resources LLC | Colorado | 11,239 BBLs | 0 MCF | Mar 2018 - Feb 2025 |
| Indian Exploration, Inc. | Louisiana | 1,621 BBLs | 0 MCF | Feb 1992 - Jan 2025 |
| Indian Oil Co., Inc. | Kansas | 6,116 BBLs | 35,498 MCF | Jan 1980 - Dec 2024 |
| Investment Equipment LLC | Colorado | 1,530 BBLs | 295 MCF | Apr 2010 - Feb 2025 |
| Iron Oil Operating, LLC | North Dakota | 15,725 BBLs | 26,429 MCF | Jun 2017 - Feb 2025 |
| J R Oil, LTD. Co. | New Mexico | 16,487 BBLs | 123,796 MCF | Dec 2007 - Feb 2025 |
| J-V Oil, LLC | Kansas | 2,339 BBLs | 937 MCF | Jan 1980 - Dec 2024 |
| J. P. Van Way | Louisiana | 10,876 BBLs | 20,979 MCF | Jul 1981 - Dec 2024 |