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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Hertel Oil Company LLC | Kansas | 3,221 BBLs | 0 MCF | Jan 1980 - Apr 2019 |
| Hess Bakken Investments II, LLC | North Dakota | 3,193,429 BBLs | 6,948,290 MCF | Jan 2014 - Jun 2019 |
| Hess Oil Company | Kansas | 9,526 BBLs | 0 MCF | Jan 1980 - Apr 2019 |
| Highmark Energy Operating, LLC | Louisiana | 551 BBLs | 114,897 MCF | Jun 2014 - Aug 2018 |
| Hilcorp Alaska LLC | Alaska | 1,581,314 BBLs | 32,996,720 MCF | Nov 2011 - Jul 2019 |
| Hilcorp Energy Company | Colorado | 224 BBLs | 2,492,931 MCF | Dec 2005 - May 2019 |
| Hilcorp Energy Company | Louisiana | 409,819 BBLs | 1,904,933 MCF | Oct 1990 - Sep 2018 |
| Hilcorp Energy Company | New Mexico | 63,683 BBLs | 28,465,476 MCF | Aug 2017 - Dec 2018 |
| Hilcorp Energy Company | Wyoming | 31,309 BBLs | 3,398,396 MCF | Jan 1978 - Dec 2019 |
| Hilcorp Energy Company, Inc. | Alabama | 29,592 BBLs | 170,809 MCF | Oct 1976 - Mar 2019 |
| Hillenburg Oil Co., A General Partnership | Kansas | 3,157 BBLs | 0 MCF | Jan 1980 - Apr 2019 |
| Hoffman Resources LLC | Kansas | 4,489 BBLs | 2,849 MCF | Jan 2010 - Apr 2019 |
| Hogback Exploration, Inc. | Arkansas | 0 BBLs | 96,854 MCF | Jan 2001 - Apr 2019 |
| HRM Resources III LLC | Wyoming | 3,704 BBLs | 598,842 MCF | Jan 2017 - Dec 2019 |
| Hudson Oil Company Of Texas | New Mexico | 3,224 BBLs | 7,738 MCF | Jan 1993 - Dec 2018 |
| Hughes Eastern Corporation | Alabama | 5,108 BBLs | 10,258 MCF | Sep 1977 - Mar 2019 |
| Hughes Eastern Corporation | Louisiana | 2,752 BBLs | 395 MCF | May 1986 - Sep 2018 |
| Hummon Corporation | Kansas | 3,236 BBLs | 10,143 MCF | Jan 1980 - Apr 2019 |
| Hunt Oil Company | North Dakota | 260,009 BBLs | 233,632 MCF | Aug 1956 - Jun 2019 |
| Huntington Energy LLC | Wyoming | 5,354 BBLs | 3,709 MCF | Jan 1980 - Dec 2019 |
| Huntington Energy, LLC | New Mexico | 2,127 BBLs | 92,706 MCF | Apr 2003 - Jan 2019 |
| Hyperion Oil & Gas LLC | Wyoming | 9,870 BBLs | 72,562 MCF | Jan 1979 - Dec 2019 |
| I.G. Petroleum, L.L.C | Louisiana | 2,439 BBLs | 0 MCF | Sep 2000 - Aug 2018 |
| Ia Operating, Inc. | Kansas | 6,562 BBLs | 0 MCF | Apr 1997 - Apr 2019 |
| Impact Exploration & Production LLC | Wyoming | 65,549 BBLs | 113,738 MCF | Jan 2017 - Dec 2019 |
| Impetro Operating LLC | New Mexico | 20,679 BBLs | 96,994 MCF | Jul 2018 - Jan 2019 |
| Incremental Oil & Gas USA Holdings Inc | Wyoming | 3,894 BBLs | 40,610 MCF | Jan 2015 - Dec 2019 |
| Indian Exploration, Inc. | Louisiana | 10,530 BBLs | 141 MCF | Feb 1992 - Oct 2018 |
| Indian Oil Co., Inc. | Kansas | 4,898 BBLs | 63,619 MCF | Jan 1980 - Apr 2019 |
| Indigo Minerals LLC | Louisiana | 14,568 BBLs | 15,976,891 MCF | Aug 2007 - Sep 2018 |
| Indigo Resources LLC | Louisiana | 2,212 BBLs | 804,676 MCF | Dec 2015 - Aug 2018 |
| Interstate Explorations LLC | Louisiana | 436 BBLs | 55,588 MCF | Sep 2012 - Aug 2018 |
| Investment Equipment LLC | Colorado | 3,255 BBLs | 1,630 MCF | Apr 2010 - Jun 2019 |
| Iron Oil Operating, LLC | North Dakota | 46,141 BBLs | 76,659 MCF | Jun 2017 - Jun 2019 |
| J-W Operating Company | Louisiana | 993 BBLs | 1,785,363 MCF | Jan 1977 - Aug 2018 |
| J. P. Van Way | Louisiana | 7,931 BBLs | 21,048 MCF | Jul 1981 - Sep 2018 |
| J. R. Pounds, Inc. | Mississippi | 6,105 BBLs | 8,859 MCF | Jan 2018 - Jun 2019 |
| Jabsco Oil Operating, LLC | Alabama | 807 BBLs | 50,611 MCF | Feb 1977 - Mar 2019 |
| Jack L. Phillips | Mississippi | 7,238 BBLs | 2,052 MCF | Jan 2018 - Jun 2019 |
| Jag Operating, L.L.C. | Louisiana | 2,397 BBLs | 2,223 MCF | Jan 2008 - Sep 2018 |
| James Drilling Co., Inc. | Louisiana | 2,833 BBLs | 0 MCF | Oct 1986 - Oct 2018 |
| Jamex, Inc | Arkansas | 3,181 BBLs | 0 MCF | Apr 2002 - May 2019 |
| Jason Oil Company, LLC | Kansas | 10,323 BBLs | 0 MCF | Jan 1980 - Apr 2019 |
| Jaspar Co. | Kansas | 3,629 BBLs | 0 MCF | Jan 1980 - Apr 2019 |
| Jay Management Company, LLC | New Mexico | 2,202 BBLs | 31,510 MCF | Mar 2007 - Jan 2019 |
| Jeems Bayou Production Corp. | Louisiana | 1,294 BBLs | 27,511 MCF | Jan 1977 - Sep 2018 |
| Jicarilla Energy Co | New Mexico | 0 BBLs | 244,019 MCF | Jan 1993 - Dec 2018 |
| Jimmy P Dempsey | Louisiana | 3,582 BBLs | 60 MCF | Jan 1977 - Sep 2018 |
| Jody Oil & Gas Corporation | Kansas | 1,100 BBLs | 32,564 MCF | Jan 1980 - Apr 2019 |
| John J. Welsh | Louisiana | 2,403 BBLs | 41,656 MCF | Nov 1988 - Sep 2018 |