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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Fifth Creek Energy Operating Company LLC | Colorado | 0 BBLs | 0 MCF | Jul 2016 - Mar 2018 |
| Flying J Oil & Gas Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2009 |
| Forest Oil Corporation | Colorado | 0 BBLs | 0 MCF | Jun 2007 - Nov 2008 |
| Forestar Group Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2015 |
| Fortigen Resources LLC | Colorado | 0 BBLs | 0 MCF | Jul 2017 - Mar 2020 |
| Fortitude Exploration Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2024 |
| Foundation Energy Management LLC | Colorado | 428 BBLs | 5,320 MCF | Aug 2005 - Feb 2024 |
| Fountainhead Resources LTD | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2016 |
| Four Corners Energy LLC | Colorado | 0 BBLs | 0 MCF | Apr 2020 - Jan 2024 |
| Four Star Oil & Gas Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2017 |
| Fram Operating LLC | Colorado | 0 BBLs | 0 MCF | Mar 2009 - Dec 2018 |
| Francis Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2000 |
| Freund Investments LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2004 |
| Fritz & Digman Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2024 |
| Fritzler Resources Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2023 |
| Fulcrum Energy Operating LLC | Colorado | 0 BBLs | 0 MCF | Oct 2022 - Jan 2024 |
| Fundare Resources Operating Company LLC | Colorado | 132,424 BBLs | 526,999 MCF | Nov 2021 - Feb 2024 |
| Gadeco LLC | Colorado | 0 BBLs | 0 MCF | May 2017 - Jan 2024 |
| Gary-Williams Energy Corp | Colorado | 0 BBLs | 0 MCF | Sep 2009 - Jul 2010 |
| Genesis Gas & Oil Colorado LLC | Colorado | 0 BBLs | 0 MCF | Aug 2011 - Dec 2023 |
| Genesis Gas & Oil LLC | Colorado | 0 BBLs | 0 MCF | Nov 2005 - Jul 2011 |
| Genesis Investments LLC | Colorado | 0 BBLs | 0 MCF | Jan 2015 - Dec 2016 |
| Genessee Oil Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2007 |
| Geomet Operating Company Inc | Colorado | 0 BBLs | 0 MCF | Jun 2003 - May 2012 |
| Geotech Production Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2020 |
| Germany Oil Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2002 |
| Gibson* J W | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 1999 |
| Gilbert-Stewart Operating LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2024 |
| Gils Hot Oil Service | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2022 |
| Glade* Chris Oil & Gas LLC | Colorado | 0 BBLs | 0 MCF | May 2011 - Jun 2019 |
| GMT Exploration Company LLC | Colorado | 0 BBLs | 0 MCF | May 2021 - Jan 2024 |
| Goodwin Energy Management LLC | Colorado | 0 BBLs | 0 MCF | Jul 2011 - Dec 2022 |
| Gordon Engineering Inc | Colorado | 0 BBLs | 1,287 MCF | Jan 1999 - Feb 2024 |
| Gosney & Sons Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2019 |
| Gould & Associates* Joseph B | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2002 |
| Grand Mesa Operating Co | Colorado | 4,654 BBLs | 164 MCF | Jan 1999 - Feb 2024 |
| Grand Valley Resources Inc | Colorado | 93 BBLs | 0 MCF | Jan 1999 - Feb 2024 |
| Grassy Hill Management, Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 1999 |
| Grayhorse Operating, Inc. | Colorado | 0 BBLs | 0 MCF | Jul 2000 - Dec 2020 |
| Great Northern Gas Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2017 |
| Great Western Drilling Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2017 |
| Great Western Operating Company LLC | Colorado | 0 BBLs | 0 MCF | Sep 2005 - Aug 2022 |
| Griffin Management LLC | Colorado | 0 BBLs | 0 MCF | May 2002 - Feb 2010 |
| Grizzly Operating LLC | Colorado | 0 BBLs | 0 MCF | Oct 2015 - Jan 2024 |
| GRMR Oil & Gas LLC | Colorado | 0 BBLs | 0 MCF | Sep 2014 - Jan 2024 |
| Grynberg* Jack Dba Grynberg Petroleum Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2023 |
| Gulfport Energy Corporation | Colorado | 0 BBLs | 0 MCF | Apr 2010 - Oct 2020 |
| Gungoll Exploration Inc* Carl E | Colorado | 0 BBLs | 0 MCF | May 2000 - Jul 2003 |
| Gunnison Energy Corporation | Colorado | 0 BBLs | 0 MCF | Oct 2001 - Jun 2014 |
| Gunnison Energy LLC | Colorado | 0 BBLs | 0 MCF | Jul 2014 - Jan 2024 |