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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Augustus Energy Partners II LLC | Colorado | 0 BBLs | 0 MCF | Oct 2015 - Apr 2020 |
| Augustus Energy Partners LLC | Colorado | 0 BBLs | 0 MCF | May 2008 - Feb 2014 |
| Augustus Energy Resources LLC | Colorado | 0 BBLs | 0 MCF | Dec 2012 - Jun 2018 |
| Aurora Power Resources Inc | Colorado | 0 BBLs | 0 MCF | Feb 2014 - Aug 2018 |
| Aus-Tex Exploration Inc | Colorado | 178 BBLs | 2,920 MCF | Jun 2012 - Oct 2024 |
| Ausmus & Clark Oil | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2022 |
| Axia Energy LLC | Colorado | 0 BBLs | 0 MCF | Jan 2011 - Jun 2016 |
| Axis Exploration LLC | Colorado | 49,226 BBLs | 134,084 MCF | Oct 2016 - Sep 2024 |
| B & B Oil Company LTD | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2020 |
| Ballard Petroleum LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2001 |
| Baney Well Service Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2016 |
| Barfield Oil Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2001 |
| Barrett Corporation* Bill | Colorado | 0 BBLs | 0 MCF | Sep 2004 - Aug 2024 |
| Barrett Resources Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2004 |
| Basin Exploration Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2004 |
| Bass Enterprises Production Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2005 |
| Bataa Oil Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2002 |
| Bates* James Edward | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2017 |
| Bayhorse Petroleum LLC | Colorado | 0 BBLs | 0 MCF | Nov 2007 - Dec 2016 |
| Bayless Producer LLC* Robert L | Colorado | 2,070 BBLs | 17,558 MCF | Jan 1999 - Sep 2024 |
| Bayswater Exploration And Production LLC | Colorado | 703,772 BBLs | 2,515,550 MCF | Feb 2008 - Sep 2024 |
| BDS International LLC | Colorado | 0 BBLs | 0 MCF | Mar 2002 - Jul 2005 |
| Beartooth Oil & Gas Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2018 |
| Becca Oil LLC | Colorado | 0 BBLs | 0 MCF | Mar 2006 - Sep 2018 |
| Beeman Oil & Gas LLC | Colorado | 2,318 BBLs | 3,009 MCF | Jan 1999 - Oct 2024 |
| Belco Energy Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2007 |
| Beltramo Jr* Alex | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2000 |
| Benchmark Energy LLC | Colorado | 0 BBLs | 0 MCF | Aug 2011 - Sep 2023 |
| Benchmark Oil & Gas Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2001 |
| Benson-Montin-Greer Drilling Corporation | Colorado | 0 BBLs | 0 MCF | Oct 2002 - Sep 2022 |
| Bepco Operating Co | Colorado | 0 BBLs | 0 MCF | Apr 2004 - Mar 2006 |
| Beren Corporation | Colorado | 1,822 BBLs | 0 MCF | Jan 1999 - Sep 2024 |
| Berenergy Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2016 |
| Berexco LLC | Colorado | 0 BBLs | 2,908 MCF | Jan 1999 - Sep 2024 |
| Berry Energy Inc*Walter | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2017 |
| Berry Petroleum Company LLC | Colorado | 0 BBLs | 0 MCF | Feb 2005 - Jan 2022 |
| Bic Petroleum Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2002 |
| Big Run Production Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2024 |
| Bison Energy Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Oct 2010 |
| Bison IV Operating LLC | Colorado | 0 BBLs | 0 MCF | Dec 2017 - Aug 2024 |
| Bison Oil & Gas III LLC | Colorado | 0 BBLs | 0 MCF | May 2022 - Aug 2023 |
| Bison Oil & Gas LLC | Colorado | 0 BBLs | 0 MCF | Apr 2016 - Oct 2017 |
| Black Diamond Minerals LLC | Colorado | 0 BBLs | 0 MCF | Jul 2009 - Jun 2014 |
| Black Hills Exploration And Production Inc | Colorado | 0 BBLs | 0 MCF | Apr 2001 - May 2018 |
| Black Hills Plateau Production LLC | Colorado | 0 BBLs | 0 MCF | Dec 2005 - May 2018 |
| Black Raven Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 2007 - Apr 2017 |
| Blackrock Energy Corp | Colorado | 538 BBLs | 0 MCF | Dec 2019 - Oct 2024 |
| Blue & Gray Energy Inc | Colorado | 0 BBLs | 0 MCF | Nov 2004 - Jun 2011 |
| Blue Chip Oil Inc | Colorado | 68 BBLs | 3,315 MCF | Jan 1999 - Oct 2024 |
| Blue Creek Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2002 |