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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Gadeco, LLC | North Dakota | 5,855 BBLs | 18,392 MCF | Jul 2012 - Feb 2024 |
| Gaines Operating, LLC | Louisiana | 2,252 BBLs | 0 MCF | Apr 2000 - Dec 2023 |
| Geoterre Operating, L.L.C. | Louisiana | 5,209 BBLs | 0 MCF | Mar 2019 - Dec 2023 |
| Gilbert-Stewart Operating LLC | Kansas | 2,141 BBLs | 0 MCF | Jun 2002 - Dec 2023 |
| Gladney Energy Partners, LLC | Louisiana | 2,335 BBLs | 2,786 MCF | Oct 2017 - Dec 2023 |
| Goodale Enterprises LLC | Michigan | 3,935 BBLs | 0 MCF | Jan 1985 - Dec 2023 |
| Gore Oil Company | Kansas | 18,342 BBLs | 2,401 MCF | Jan 1980 - Dec 2023 |
| Grady Bolding Corporation | Kansas | 2,452 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Grand Mesa Operating Co | Colorado | 4,654 BBLs | 164 MCF | Jan 1999 - Feb 2024 |
| Grand Mesa Operating Company | Kansas | 13,169 BBLs | 35,982 MCF | Jan 1980 - Dec 2023 |
| Granite Creek Energy LLC | Wyoming | 24,632 BBLs | 134 MCF | May 2023 - Feb 2024 |
| Grayson Mill Operating, LLC | Montana | 5,501 BBLs | 8,345 MCF | Apr 2021 - Feb 2024 |
| Grayson Mill Operating, LLC | North Dakota | 2,613,892 BBLs | 9,518,084 MCF | Nov 2021 - Feb 2024 |
| Great American Royalties, Inc. | North Dakota | 1,282 BBLs | 0 MCF | Dec 1979 - Mar 2024 |
| Great Plains Energy, Inc. | Kansas | 1,899 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Green Reserve Energy Holdings LLC | Wyoming | 9,880 BBLs | 1,696 MCF | Dec 2020 - Feb 2024 |
| Green Valley Operating, LLC | Montana | 2,785 BBLs | 2,330 MCF | Sep 2022 - Feb 2024 |
| Greylock Production LLC | Wyoming | 7,670 BBLs | 827,060 MCF | Feb 2022 - Feb 2024 |
| Greylock Production, LLC | Utah | 19,237 BBLs | 1,123,066 MCF | Apr 2022 - Feb 2024 |
| Griffin & Griffin Expl, LLC | Louisiana | 2,117 BBLs | 0 MCF | Feb 2007 - Jan 2024 |
| Griffin, Charles N. | Kansas | 28,697 BBLs | 19,704 MCF | Jun 1980 - Dec 2023 |
| H & B Petroleum Corp. | Kansas | 6,711 BBLs | 1,200 MCF | Jan 1980 - Dec 2023 |
| H & C Oil Operating Inc. | Kansas | 6,110 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| H & D Exploration LLC | Kansas | 2,199 BBLs | 6,190 MCF | May 1983 - Dec 2023 |
| H L Brown Operating, LLC | New Mexico | 9,296 BBLs | 25,072 MCF | Jun 2001 - Feb 2024 |
| H R F Exploration And Production LLC | Michigan | 0 BBLs | 143,782 MCF | Jan 2006 - Feb 2024 |
| Haas Petroleum, LLC | Kansas | 1,817 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Hadley/Jackson Energy LLC | Wyoming | 1,357 BBLs | 0 MCF | Nov 2019 - Jan 2024 |
| Hale Oil | Louisiana | 1,724 BBLs | 0 MCF | Jan 1995 - Dec 2023 |
| Hale Oil Co. | Louisiana | 1,693 BBLs | 0 MCF | Apr 1985 - Jan 2024 |
| Hanna Oil And Gas Company | Arkansas | 0 BBLs | 377,588 MCF | Jan 2001 - Jan 2024 |
| Hanson Operating Co Inc | New Mexico | 1,209 BBLs | 8,161 MCF | Jan 1993 - Jan 2024 |
| Hartman Oil Co., Inc. | Kansas | 19,397 BBLs | 9,641 MCF | Jan 1980 - Dec 2023 |
| Harvard Petroleum Company, LLC | New Mexico | 63,004 BBLs | 207,610 MCF | Jan 1993 - Jan 2024 |
| Hawkins Oil, LLC | Kansas | 1,444 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Henergy Oil & Gas LLC | Louisiana | 1,844 BBLs | 0 MCF | Feb 2019 - Jan 2024 |
| Herman L. Loeb, LLC | Kansas | 25,481 BBLs | 128,923 MCF | Jan 1980 - Dec 2023 |
| Hertel Oil Company LLC | Kansas | 1,889 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| Hess Bakken Investments II, LLC | North Dakota | 2,573,664 BBLs | 10,130,628 MCF | Jan 2014 - Feb 2024 |
| Hess Oil Company | Kansas | 7,211 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| HG Oil Holdings, LLC | Kansas | 20,413 BBLs | 710 MCF | Jan 2020 - Dec 2023 |
| High River Resources Operating LLC | Colorado | 0 BBLs | 77,081 MCF | Aug 2019 - Feb 2024 |
| High River Resources Operating, LLC | New Mexico | 6,158 BBLs | 421,883 MCF | Nov 2023 - Feb 2024 |
| Highmark Energy Operating, LLC | Louisiana | 310 BBLs | 93,044 MCF | Jun 2014 - Dec 2023 |
| Hilcorp Alaska, LLC | Alaska | 1,795,716 BBLs | 39,115,598 MCF | May 2006 - Feb 2024 |
| Hilcorp Energy Company | New Mexico | 47,773 BBLs | 22,521,467 MCF | Aug 2017 - Feb 2024 |
| Hilcorp Energy Company | Wyoming | 25,818 BBLs | 3,476,612 MCF | Jun 1997 - Feb 2024 |
| Hilcorp Energy Company, Inc. | Alabama | 27,989 BBLs | 222,764 MCF | Oct 1976 - Nov 2023 |
| Hilcorp North Slope, LLC | Alaska | 6,774,341 BBLs | 276,787,310 MCF | Jan 2019 - Feb 2024 |
| Hillenburg Oil Co., A General Partnership | Kansas | 2,741 BBLs | 0 MCF | Jan 1980 - Dec 2023 |