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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Goodale Enterprises LLC | Michigan | 4,207 BBLs | 0 MCF | Jan 1985 - Apr 2024 |
| Gore Oil Company | Kansas | 18,114 BBLs | 2,050 MCF | Jan 1980 - Mar 2024 |
| Grady Bolding Corporation | Kansas | 3,238 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| Grand Mesa Operating Co | Colorado | 4,434 BBLs | 245 MCF | Jan 1999 - May 2024 |
| Grand Mesa Operating Company | Kansas | 13,504 BBLs | 33,232 MCF | Jan 1980 - Mar 2024 |
| Granite Creek Energy LLC | Wyoming | 24,616 BBLs | 0 MCF | May 2023 - May 2024 |
| Grayson Mill Operating, LLC | Montana | 6,378 BBLs | 16,909 MCF | Apr 2021 - Apr 2024 |
| Grayson Mill Operating, LLC | North Dakota | 2,415,668 BBLs | 10,581,500 MCF | Nov 2021 - May 2024 |
| Great American Royalties, Inc. | North Dakota | 1,502 BBLs | 0 MCF | Dec 1979 - Jun 2024 |
| Great Plains Energy, Inc. | Kansas | 1,941 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| Green Reserve Energy Holdings LLC | Wyoming | 9,435 BBLs | 1,429 MCF | Dec 2020 - May 2024 |
| Green Valley Operating, LLC | Montana | 1,998 BBLs | 924 MCF | Jun 2022 - Apr 2024 |
| Greylock Production LLC | Wyoming | 9,638 BBLs | 850,538 MCF | Feb 2022 - May 2024 |
| Greylock Production, LLC | Utah | 18,652 BBLs | 1,171,426 MCF | Apr 2022 - Apr 2024 |
| Griffin & Griffin Expl, LLC | Louisiana | 2,117 BBLs | 0 MCF | Feb 2007 - Jan 2024 |
| Griffin, Charles N. | Kansas | 20,601 BBLs | 7,387 MCF | Jun 1980 - Mar 2024 |
| Gunnison Energy LLC | Colorado | 0 BBLs | 93,314 MCF | Jul 2014 - Apr 2024 |
| H & B Petroleum Corp. | Kansas | 8,628 BBLs | 1,025 MCF | Jan 1980 - Mar 2024 |
| H & C Oil Operating Inc. | Kansas | 7,369 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| H & D Exploration LLC | Kansas | 2,201 BBLs | 5,890 MCF | May 1983 - Mar 2024 |
| H L Brown Operating, LLC | New Mexico | 8,908 BBLs | 26,153 MCF | Jun 2001 - Apr 2024 |
| H R F Exploration And Production LLC | Michigan | 0 BBLs | 139,813 MCF | Jan 2006 - Apr 2024 |
| Hadley/Jackson Energy LLC | Wyoming | 1,706 BBLs | 3 MCF | Nov 2019 - Apr 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 | 360,256 MCF | Jan 2001 - Apr 2024 |
| Hartman Oil Co., Inc. | Kansas | 17,904 BBLs | 10,437 MCF | Jan 1980 - Mar 2024 |
| Harvard Petroleum Company, LLC | New Mexico | 59,022 BBLs | 186,908 MCF | Jan 1993 - May 2024 |
| Hawkins Oil, LLC | Kansas | 1,797 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| Hayes Oil & Gas LLC | Kansas | 1,592 BBLs | 6,901 MCF | Jan 1980 - Mar 2024 |
| Henergy Oil & Gas LLC | Louisiana | 1,844 BBLs | 0 MCF | Feb 2019 - Jan 2024 |
| Herman L. Loeb, LLC | Kansas | 24,211 BBLs | 118,075 MCF | Jan 1980 - Mar 2024 |
| Hertel Oil Company LLC | Kansas | 1,556 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| Hess Bakken Investments II, LLC | North Dakota | 2,832,004 BBLs | 11,978,397 MCF | Jan 2014 - May 2024 |
| Hess Oil Company | Kansas | 8,021 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| HG Oil Holdings, LLC | Kansas | 19,177 BBLs | 567 MCF | Jan 2020 - Mar 2024 |
| High River Resources Operating LLC | Colorado | 0 BBLs | 79,396 MCF | Aug 2019 - May 2024 |
| High River Resources Operating, LLC | New Mexico | 5,338 BBLs | 427,153 MCF | Nov 2023 - May 2024 |
| Highmark Energy Operating, LLC | Louisiana | 310 BBLs | 93,044 MCF | Jun 2014 - Dec 2023 |
| Hilcorp Alaska, LLC | Alaska | 1,739,457 BBLs | 35,711,616 MCF | May 2006 - May 2024 |
| Hilcorp Energy Company | Colorado | 281 BBLs | 1,997,174 MCF | Dec 2005 - May 2024 |
| Hilcorp Energy Company | New Mexico | 47,619 BBLs | 22,427,883 MCF | Aug 2017 - Apr 2024 |
| Hilcorp Energy Company | Wyoming | 27,611 BBLs | 3,321,740 MCF | Jun 1997 - May 2024 |
| Hilcorp Energy Company, Inc. | Alabama | 23,128 BBLs | 180,251 MCF | Oct 1976 - Feb 2024 |
| Hilcorp North Slope, LLC | Alaska | 6,450,517 BBLs | 249,651,559 MCF | Jan 2019 - May 2024 |
| Hillenburg Oil Co., A General Partnership | Kansas | 2,269 BBLs | 0 MCF | Jan 1980 - Mar 2024 |
| Hoffman Resources LLC | Kansas | 1,698 BBLs | 67 MCF | Jan 2010 - Mar 2024 |
| Howell Oil Company, Inc. | Kansas | 2,799 BBLs | 0 MCF | Jul 1985 - Mar 2024 |
| Hudson Oil Company Of Texas | New Mexico | 2,284 BBLs | 3,988 MCF | Jan 1993 - Apr 2024 |
| Hughes Eastern Corporation | Alabama | 2,588 BBLs | 7,999 MCF | Sep 1977 - Feb 2024 |