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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Stehle Oil Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2021 |
| Stelbar Oil Corp Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2018 |
| Stoneham Production LLC | Colorado | 12 BBLs | 713 MCF | Jan 1999 - Sep 2025 |
| Strachan Exploration Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2025 |
| Summit Oil & Gas LLC | Colorado | 10,181 BBLs | 8,022 MCF | Sep 2021 - Sep 2025 |
| Summit Operating LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2011 |
| Sunburst Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Oct 2025 |
| Sundance Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2013 |
| Swevco - Sabw LLC | Colorado | 1,761 BBLs | 269,001 MCF | Jan 1999 - Sep 2025 |
| SWN Production Company LLC | Colorado | 0 BBLs | 0 MCF | Aug 2001 - May 2023 |
| Tamco Drilling Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2001 |
| Taylor* William M | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2015 |
| Texas American Resources Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2011 |
| Texas Tea Of Colorado LLC Dba Texas Tea LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2021 |
| Thomas L Spring LLC | Colorado | 0 BBLs | 5,720 MCF | Jan 1999 - Sep 2025 |
| Tidal Wave Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2022 |
| Tigges Oil LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2022 |
| Timberline Energy Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2018 |
| Timka Resources LTD | Colorado | 738 BBLs | 11 MCF | Jan 1999 - Oct 2025 |
| Tindall Operating Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2025 |
| Tom Brown Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2004 |
| Tom Fenno Production LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2017 |
| Top Operating Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2022 |
| Town Of Erie | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2020 |
| Trend Exploration Co | Colorado | 0 BBLs | 0 MCF | Aug 1999 - Aug 1999 |
| Trinity Energy Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2005 |
| True Oil LLC | Colorado | 4,652 BBLs | 11,058 MCF | Jan 1999 - Oct 2025 |
| 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 | 88 BBLs | 82 MCF | Jan 1999 - Sep 2025 |
| Umad LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2010 |
| Unioil | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2010 |
| Unit Petroleum Company | Colorado | 0 BBLs | 0 MCF | Jul 2003 - Aug 2020 |
| United States Exploration Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2005 |
| Valkyrie Operating LLC | Colorado | 652 BBLs | 0 MCF | Jan 1999 - Oct 2025 |
| Vecta Oil & Gas LTD | Colorado | 163 BBLs | 640 MCF | Dec 2009 - Sep 2025 |
| Verdad Resources LLC | Colorado | 951,727 BBLs | 3,683,524 MCF | Jan 1999 - Sep 2025 |
| Vision Energy LLC | Colorado | 0 BBLs | 22,742 MCF | Jan 1999 - Sep 2025 |
| Vista Operating Inc | Colorado | 0 BBLs | 0 MCF | May 2002 - Jun 2013 |
| Visual Optics Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2012 |
| Vitruvian Exploration LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2012 |
| Wallace Oil & Gas Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2005 |
| Wapiti Operating LLC | Colorado | 0 BBLs | 226,746 MCF | Jun 1999 - Sep 2025 |
| Ward & Son* Alfred | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2021 |
| Ward Petroleum Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2017 |
| Wavetech Helium Inc | Colorado | 0 BBLs | 10,656 MCF | Jan 1999 - Sep 2025 |
| Wellington Operating Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2025 |
| Wellstar Corporation | Colorado | 0 BBLs | 0 MCF | Jul 2012 - Oct 2016 |
| Wesco Operating Inc | Colorado | 708 BBLs | 0 MCF | Jan 1999 - Sep 2025 |
| West Texas Operating Co LLC Dba Xtreme Energyco | Colorado | 0 BBLs | 4,465 MCF | Jan 1999 - Sep 2025 |