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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Balidor Oil & Gas LLC | Wyoming | 17,853 BBLs | 44,171 MCF | Apr 2017 - Oct 2021 |
| Balko, Inc. | Montana | 2,435 BBLs | 710 MCF | Jan 1991 - Sep 2021 |
| Ballantyne Oil, LLC | North Dakota | 23,166 BBLs | 4,248 MCF | Jul 2010 - Nov 2021 |
| Ballard Exploration Co., Inc. | Louisiana | 1,200 BBLs | 39,814 MCF | Jun 1982 - Jun 2021 |
| Ballard Petroleum Holdings LLC | Wyoming | 141,575 BBLs | 420,622 MCF | Jan 1983 - Oct 2021 |
| Ballard Petroleum Holdings, LLC | North Dakota | 12,960 BBLs | 742 MCF | May 2003 - Nov 2021 |
| Barrett Corporation* Bill | Colorado | 301,789 BBLs | 1,726,534 MCF | Mar 2002 - Nov 2021 |
| Bay Gas, LLC | Louisiana | 2,276 BBLs | 0 MCF | Nov 2003 - Jun 2021 |
| Bayless Producer LLC* Robert L | Colorado | 2,633 BBLs | 45,409 MCF | Jan 1999 - Nov 2021 |
| Bayou Bouillon Operating LLC | Louisiana | 101,298 BBLs | 40,447 MCF | Dec 2015 - Jun 2021 |
| Bayou State Oil Corporation | Louisiana | 8,617 BBLs | 429 MCF | Jan 1977 - Jun 2021 |
| Bayswater Exploration And Production LLC | Colorado | 557,357 BBLs | 1,278,336 MCF | Jan 2008 - Nov 2021 |
| Bce-Mach LLC | Kansas | 4,569 BBLs | 144,481 MCF | Jun 2010 - Sep 2021 |
| BCF Resources, LLC | Louisiana | 3,007 BBLs | 0 MCF | Jul 2017 - Jun 2021 |
| Bear Petroleum, LLC | Kansas | 9,089 BBLs | 45,181 MCF | Jan 1980 - Sep 2021 |
| Becker Oil Corporation | Kansas | 3,610 BBLs | 52,760 MCF | Jan 1980 - Sep 2021 |
| Behm Energy, Inc. | Montana | 3,817 BBLs | 0 MCF | May 1996 - Nov 2021 |
| Bennett & Schulte Oil Co., A General Partnership | Kansas | 3,419 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| Benson-Montin-Greer Drilling Corp | New Mexico | 7,613 BBLs | 59,459 MCF | Jan 1993 - Nov 2021 |
| Beren Corporation | Colorado | 2,926 BBLs | 0 MCF | Jan 1999 - Nov 2021 |
| Beren Corporation | Kansas | 2,752 BBLs | 18,162 MCF | Jan 1980 - Sep 2021 |
| Berenergy Corporation | North Dakota | 12,393 BBLs | 142 MCF | May 2001 - Nov 2021 |
| Berenergy Corporation | Wyoming | 2,536 BBLs | 3,931 MCF | Jan 1987 - Oct 2021 |
| Berexco LLC | Kansas | 132,059 BBLs | 153,432 MCF | Jan 1980 - Sep 2021 |
| Berry Petroleum Company LLC | Utah | 80,289 BBLs | 635,122 MCF | Dec 2013 - Nov 2021 |
| Betsy Production Company, Inc | Arkansas | 17,140 BBLs | 421 MCF | Jan 2001 - Oct 2021 |
| Big Muddy Operating LLC | Wyoming | 3,943 BBLs | 0 MCF | Oct 2016 - Oct 2021 |
| Birk Petroleum | Kansas | 2,339 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| Black Bayou Operating, LLC | Louisiana | 17,161 BBLs | 0 MCF | Jan 2013 - Jun 2021 |
| Black Bear Oil Corporation | Wyoming | 12,633 BBLs | 26,054 MCF | May 2003 - Oct 2021 |
| Black Gold Services Inc | Wyoming | 2,460 BBLs | 0 MCF | Jan 2021 - Nov 2021 |
| Black Jack Oil Company., Inc. | Mississippi | 6,879 BBLs | 11,619 MCF | Dec 1976 - Jan 2021 |
| Black Oak Exploration, LLC | Kansas | 6,820 BBLs | 2,260 MCF | Feb 2010 - Sep 2021 |
| Black Warrior Methane Corp. | Alabama | 0 BBLs | 297,535 MCF | Feb 1982 - Oct 2021 |
| Block T Operating, LLC | Alabama | 2,487 BBLs | 0 MCF | Dec 1945 - Oct 2021 |
| Blue Dome Operating, LLC | Louisiana | 0 BBLs | 2,294,196 MCF | Jan 2019 - Jul 2021 |
| Blue Goose Drilling Company, Inc. | Kansas | 3,232 BBLs | 0 MCF | Jul 1985 - Sep 2021 |
| Bluecrest Alaska Operating LLC | Alaska | 26,461 BBLs | 71,449 MCF | Jan 2015 - Oct 2021 |
| Blueridge Petroleum Corporation | Kansas | 6,597 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| Boaz Rockies Operating LLC | Wyoming | 6,858 BBLs | 4,860 MCF | Dec 2012 - Nov 2021 |
| Bobcat Oilfield Service, Inc. | Kansas | 4,187 BBLs | 0 MCF | Jan 2010 - Sep 2021 |
| Bonanza Creek Energy Operating Company LLC | Colorado | 594,023 BBLs | 2,076,243 MCF | Apr 1999 - Nov 2021 |
| Bowman Oil Company, A General Partnership | Kansas | 5,926 BBLs | 0 MCF | Jan 1980 - Sep 2021 |
| BPX (KCS Resources), LLC | Louisiana | 0 BBLs | 1,016,315 MCF | Aug 2019 - Jun 2021 |
| BPX (WSF Operating) Inc. | Louisiana | 0 BBLs | 1,158,175 MCF | Aug 2019 - Jun 2021 |
| BPX Operating Company | Louisiana | 0 BBLs | 5,535,292 MCF | Aug 2019 - Jun 2021 |
| Brammer Engineering, Inc | Arkansas | 3,984 BBLs | 13,833 MCF | Jan 2001 - Oct 2021 |
| Brammer Engineering, Inc. | Louisiana | 5,558 BBLs | 15,217 MCF | Jan 1977 - Jul 2021 |
| Breitburn Operating L.P. | Wyoming | 59,117 BBLs | 419,240 MCF | Jul 2011 - Oct 2021 |
| Breitburn Operating Limited Partnership | Michigan | 18,485 BBLs | 745,574 MCF | Jan 2008 - Jul 2021 |