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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Hallar Enterprises, Inc. | Louisiana | 0 BBLs | 0 MCF | Aug 1987 - Oct 2007 |
| Halliburton Energy SVCS., Inc. | Louisiana | 0 BBLs | 0 MCF | Sep 1997 - Sep 2000 |
| Halliburton Operating Company | Louisiana | 0 BBLs | 0 MCF | Nov 2002 - Jan 2007 |
| Hallmark Oil And Gas Co., Inc. | Louisiana | 10 BBLs | 13,050 MCF | Jun 1992 - Jun 2024 |
| Hallwell Gas & Oil Co. | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Sep 1985 |
| Hallwood Petroleum, Inc. | Louisiana | 0 BBLs | 0 MCF | May 1990 - Aug 2001 |
| Hallwood Petroleum, LLC | Louisiana | 0 BBLs | 0 MCF | Oct 2007 - Dec 2007 |
| Hamilton Brothers Oil Co. | Louisiana | 0 BBLs | 0 MCF | Oct 1978 - Mar 1990 |
| Hamilton Gas Co., Inc. | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Mar 1999 |
| Hamlin'S Production, Inc. | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - May 1981 |
| Hamman Oil & Refining Co. | Louisiana | 0 BBLs | 0 MCF | Oct 1978 - May 2012 |
| Hamon Oil Company | Louisiana | 0 BBLs | 0 MCF | Jan 1984 - Aug 1985 |
| Hamon Operating Company | Louisiana | 0 BBLs | 0 MCF | Sep 1985 - Sep 1989 |
| Hampton Resources Corporation | Louisiana | 0 BBLs | 0 MCF | Jan 1995 - Mar 1996 |
| Hamrick Oil & Gas Inc. | Louisiana | 0 BBLs | 0 MCF | Sep 1983 - Jun 1989 |
| Haney Oil Company | Louisiana | 0 BBLs | 0 MCF | Feb 1982 - Aug 1985 |
| Hanover Management Company | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Aug 1979 |
| Hansen Oil Corporation | Louisiana | 0 BBLs | 0 MCF | Nov 1985 - Oct 1991 |
| Hanson Natural Resources Co. | Louisiana | 0 BBLs | 0 MCF | Apr 1991 - Nov 1991 |
| Hanvey Production Co., Inc. | Louisiana | 0 BBLs | 0 MCF | May 1997 - Nov 2012 |
| Harbert Energy Corp/Gulf Coast | Louisiana | 0 BBLs | 0 MCF | Jan 1990 - Dec 1991 |
| Harbert Energy Corporation | Louisiana | 0 BBLs | 0 MCF | Apr 1990 - Dec 1991 |
| Harbor Operating, LLC | Louisiana | 0 BBLs | 0 MCF | Mar 1995 - Dec 1999 |
| Harbor Petroleum, LLC | Louisiana | 0 BBLs | 0 MCF | Jan 2000 - May 2004 |
| Harcor Exploration Inc. | Louisiana | 0 BBLs | 0 MCF | Jun 1988 - Aug 1989 |
| Hardco, Inc. | Louisiana | 0 BBLs | 0 MCF | Jan 1985 - Nov 1987 |
| Hardey Bros., Inc. | Louisiana | 0 BBLs | 0 MCF | Sep 1978 - Nov 1981 |
| Hardey Production Company | Louisiana | 0 BBLs | 0 MCF | Oct 1983 - Nov 1998 |
| Hardy Oil & Gas USA Inc. | Louisiana | 0 BBLs | 0 MCF | Jun 1989 - Dec 1993 |
| Hardy Stone | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Jul 1994 |
| Hargraves Daughters | Louisiana | 0 BBLs | 0 MCF | Feb 1988 - Mar 1992 |
| Hargraves Production, LLC | Louisiana | 614 BBLs | 0 MCF | Nov 2016 - Jul 2024 |
| Hargraves, Kramer & Malone | Louisiana | 0 BBLs | 0 MCF | Feb 1983 - Aug 1989 |
| Hargraves,Wortham&Roberts Etal | Louisiana | 0 BBLs | 0 MCF | Oct 1991 - Apr 1994 |
| Harleton Oil & Gas, Inc. | Louisiana | 0 BBLs | 0 MCF | Sep 2010 - Jun 2024 |
| Harold D. Hogan | Louisiana | 0 BBLs | 0 MCF | Jun 1979 - Nov 1983 |
| Harold Gauging Service, Inc.` | Louisiana | 0 BBLs | 0 MCF | Jan 2000 - Mar 2002 |
| Harold H. Hollenshead | Louisiana | 0 BBLs | 0 MCF | Aug 1988 - May 2002 |
| Harrell Plantation, Inc. | Louisiana | 0 BBLs | 0 MCF | Jul 2005 - Mar 2010 |
| Harrell Production Co. | Louisiana | 0 BBLs | 0 MCF | Apr 1985 - Sep 1991 |
| Harrington Transportation,Inc. | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Feb 1977 |
| Harris & Harris Oil Company | Louisiana | 0 BBLs | 0 MCF | May 1990 - Apr 1994 |
| Harrison & Lee | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Sep 1996 |
| Harry L. Neeb | Louisiana | 0 BBLs | 0 MCF | Apr 1983 - May 1985 |
| Hart | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Jul 1989 |
| Hart & McFarland | Louisiana | 242 BBLs | 0 MCF | Jan 1977 - Jun 2024 |
| Hartco Oil Co. | Louisiana | 1,067 BBLs | 0 MCF | Jun 1987 - Jul 2024 |
| Harter Oil Company | Louisiana | 0 BBLs | 0 MCF | Jan 1977 - Apr 2011 |
| Harter Operating, L.L.C. | Louisiana | 0 BBLs | 0 MCF | Jan 2006 - Feb 2007 |
| Hartman Oil | Louisiana | 0 BBLs | 0 MCF | Jan 1989 - Oct 1992 |