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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Central Resources, Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2000 |
| CFG Energy, Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2006 |
| CGT Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2015 |
| Chaco Energy Company | Colorado | 1,504 BBLs | 4,673 MCF | Jul 2003 - Aug 2024 |
| Chama Oil & Minerals LLC | Colorado | 0 BBLs | 0 MCF | Mar 2012 - Dec 2013 |
| Chandler & Associates LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2001 |
| Chandler Creek Companies | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2010 |
| Chandler DJ Basin LLC | Colorado | 0 BBLs | 0 MCF | Jan 2004 - Jul 2012 |
| Charles P Dunning LLC | Colorado | 0 BBLs | 0 MCF | Feb 2010 - Jun 2024 |
| Chemco Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2023 |
| Chesapeake Operating LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2014 |
| Chevron Midcontinent LP | Colorado | 0 BBLs | 0 MCF | Apr 2006 - Oct 2017 |
| Chevron USA Inc | Colorado | 827 BBLs | 301,744 MCF | Jan 1999 - Aug 2024 |
| Choctaw II Oil & Gas LTD | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2001 |
| Cholla Petroleum Inc | Colorado | 0 BBLs | 7,315 MCF | Oct 2007 - Aug 2024 |
| Cholla Production LLC | Colorado | 0 BBLs | 0 MCF | May 2000 - Jun 2021 |
| Churchill Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2020 |
| Cig Resources Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2004 |
| Cinnamon Creek Oil & Gas Inc | Colorado | 221 BBLs | 0 MCF | Jul 2000 - Sep 2024 |
| Cirque Resources LP | Colorado | 0 BBLs | 0 MCF | Sep 2012 - Jan 2016 |
| Citation Oil & Gas Corp | Colorado | 22,526 BBLs | 309,934 MCF | Jan 2005 - Sep 2024 |
| City & County Of Denver | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2023 |
| Civitas North LLC | Colorado | 355,827 BBLs | 970,691 MCF | Apr 2017 - Aug 2024 |
| Clarks Lake Operating Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2003 |
| CLX Oil & Gas LLC | Colorado | 0 BBLs | 0 MCF | Aug 1999 - Feb 2005 |
| CM Production LLC | Colorado | 0 BBLs | 0 MCF | May 2010 - Aug 2020 |
| Coachman Energy Operating Company LLC | Colorado | 0 BBLs | 0 MCF | Dec 2013 - Aug 2018 |
| Coastal Oil & Gas Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2002 |
| Coleman Oil & Gas Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2022 |
| Colorado Energy Minerals Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2010 |
| Colorado Interstate Gas Company LLC | Colorado | 491 BBLs | 0 MCF | Jan 1999 - Sep 2024 |
| Colorado Oil & Gas Corporation | Colorado | 0 BBLs | 0 MCF | Jul 2001 - May 2003 |
| Colton Limited Liability Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2023 |
| Combined Resources Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2014 |
| Comet Ridge USA Inc | Colorado | 0 BBLs | 0 MCF | Jun 2006 - Jun 2008 |
| Condor Energy Technology LLC | Colorado | 0 BBLs | 0 MCF | Apr 2012 - Jul 2018 |
| Conoco Phillips Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2020 |
| Conquest Oil Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2017 |
| Consolidated Resources Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2004 |
| Continental Resources Inc | Colorado | 0 BBLs | 0 MCF | Feb 2011 - Apr 2018 |
| Copper Land Resources LLC | Colorado | 768 BBLs | 0 MCF | Feb 2023 - Aug 2024 |
| Coral Production Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2023 |
| Costilla Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 1999 |
| Cowperthwaite* John C | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2004 |
| Coyote Exploration Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2005 |
| CPX II Operating LLC | Colorado | 0 BBLs | 0 MCF | May 2015 - Mar 2016 |
| CPX Piceance Holdings LLC | Colorado | 28 BBLs | 3,265 MCF | Apr 2016 - Aug 2024 |
| Crescendo Energy LLC | Colorado | 0 BBLs | 0 MCF | Sep 1999 - Dec 2005 |
| Crestone Peak Resources Operating LLC | Colorado | 1,504,677 BBLs | 7,530,191 MCF | Aug 2016 - Aug 2024 |
| Crimson Exploration Operating Inc | Colorado | 0 BBLs | 0 MCF | Apr 2006 - Nov 2016 |