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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Thomas L Spring LLC | Colorado | 0 BBLs | 7,407 MCF | Jan 1999 - Aug 2024 |
| Thomas Operating Company Inc | Colorado | 0 BBLs | 0 MCF | Jul 1999 - Aug 2008 |
| Thompson & James Cleo Thompson, Jr.* & J Cleo | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2010 |
| Thompson Engineering & Production | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Oct 2018 |
| Thorofare Resources, Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2011 |
| Three Forks Resources LLC | Colorado | 0 BBLs | 0 MCF | Sep 2008 - Jun 2014 |
| Thunder River Production LLC | Colorado | 0 BBLs | 0 MCF | Jul 2013 - Oct 2020 |
| Tidal Wave Energy Inc | Colorado | 0 BBLs | 0 MCF | Aug 2011 - Jun 2022 |
| Tigges Oil LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2022 |
| Timber Creek Operating LLC | Colorado | 0 BBLs | 0 MCF | Oct 2017 - Aug 2020 |
| Timberline Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2018 |
| Timka Resources LTD | Colorado | 599 BBLs | 12 MCF | Jan 1999 - Sep 2024 |
| Tindall Operating Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2024 |
| Tipperary Oil & Gas Corp | Colorado | 0 BBLs | 0 MCF | Aug 2001 - Mar 2006 |
| Tom Brown Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2004 |
| Tom Fenno Production LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2019 |
| Top Operating Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Oct 2022 |
| Town Of Erie | Colorado | 0 BBLs | 0 MCF | Nov 2018 - Jan 2020 |
| Trend Exploration Co | Colorado | 0 BBLs | 0 MCF | Jun 1999 - Sep 2000 |
| Tri-Island Land & Cattle Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2002 |
| Trilogy Resources LLC | Colorado | 0 BBLs | 0 MCF | Oct 2012 - Oct 2013 |
| Trinity Bay Oil & Gas, Inc | Colorado | 0 BBLs | 0 MCF | Apr 2011 - Feb 2016 |
| Trinity Energy Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2005 |
| Trinity Energy Resources Inc | Colorado | 0 BBLs | 0 MCF | Jan 2000 - Aug 2005 |
| Triple R Oil Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2002 |
| Trousil & Associates, Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2006 |
| True Oil LLC | Colorado | 5,424 BBLs | 7,372 MCF | Jan 1999 - Sep 2024 |
| Tudex Petroleum Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2019 |
| Twin Arrow Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2009 |
| Tyler Rockies Exploration LTD | Colorado | 43 BBLs | 38 MCF | Jan 1999 - Sep 2024 |
| U S Department Of Energy | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 1999 |
| Umad LLC | Colorado | 0 BBLs | 0 MCF | Mar 2005 - Feb 2010 |
| Unioil | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2012 |
| Union Oil Company Of California | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 1999 |
| Union Pacific Resources Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2002 |
| Unit Petroleum Company | Colorado | 0 BBLs | 0 MCF | Feb 2004 - Aug 2020 |
| United States Exploration Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2009 |
| Universal Resources Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 1999 |
| Upland Exploration LLC | Colorado | 0 BBLs | 0 MCF | Sep 2019 - Apr 2024 |
| Ursa Operating Company LLC | Colorado | 0 BBLs | 0 MCF | Jan 2013 - Dec 2020 |
| Valkyrie Operating LLC | Colorado | 619 BBLs | 0 MCF | Feb 2019 - Sep 2024 |
| Valkyrie Resources LLC | Colorado | 0 BBLs | 0 MCF | Jul 2018 - Jan 2019 |
| Valley Operating Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2004 |
| Vanguard Operating LLC | Colorado | 0 BBLs | 0 MCF | Dec 2014 - Feb 2021 |
| Vanguard Permian LLC | Colorado | 0 BBLs | 0 MCF | Jul 2013 - Apr 2015 |
| Vaquero Energy Inc | Colorado | 0 BBLs | 0 MCF | Sep 2009 - Dec 2014 |
| Vastar Resources Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2001 |
| Vecta Oil & Gas LTD | Colorado | 190 BBLs | 926 MCF | Dec 2009 - Aug 2024 |
| Venoco Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2001 |
| Verdad Oil & Gas Corporation | Colorado | 0 BBLs | 0 MCF | Aug 2014 - Sep 2016 |