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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Red Willow Production Company | Colorado | 0 BBLs | 2,759,365 MCF | Jan 1999 - Feb 2026 |
| Renegade Oil & Gas Company LLC | Colorado | 1,690 BBLs | 9,215 MCF | Jan 1999 - Feb 2026 |
| Retamco Operating Inc | Colorado | 0 BBLs | 3,078 MCF | Jan 1999 - Feb 2026 |
| Rim Operating, Inc | Colorado | 91 BBLs | 29,996 MCF | Jan 1999 - Feb 2026 |
| Rio Mesa Resources Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2022 |
| Ritchie Exploration Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2014 |
| Robertson* Dexter | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2018 |
| Rocket Petroleum Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2005 |
| Rockies Oil & Gas Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Oct 1999 |
| Rosewood Resources Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2019 |
| Roughhouse Oil & Gas LLC | Colorado | 187 BBLs | 816 MCF | Jan 1999 - Feb 2026 |
| Ruth* Ula Pearl | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2019 |
| RWL Enterprises | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Feb 2017 |
| S & D LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Aug 2022 |
| Saga Petroleum Limited Liability Co Of Co | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2015 |
| Samedan Oil Corporation | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2001 |
| Samotlor Petroleum Investments LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2000 |
| Samson Resources Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Oct 2016 |
| San Marco Petroleum Inc | Colorado | 77 BBLs | 0 MCF | Jan 1999 - Feb 2026 |
| Sand Hills Society | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2007 |
| Sandlin Oil Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Mar 2026 |
| Santa Fe Natural Resources Inc | Colorado | 0 BBLs | 0 MCF | Nov 2001 - Dec 2021 |
| Sawtooth Energy Partners LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Sep 2005 |
| Schmid Properties Inc | Colorado | 7 BBLs | 0 MCF | Jan 1999 - Feb 2026 |
| Schneider Energy Services Inc | Colorado | 5 BBLs | 118 MCF | Jan 1999 - Feb 2026 |
| Schreider & Company, Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2023 |
| Schutz* Harold | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jun 2009 |
| Schutz* Richard E | Colorado | 30 BBLs | 0 MCF | Jan 1999 - Feb 2026 |
| Scout Energy Management LLC | Colorado | 199,220 BBLs | 1,183 MCF | Jan 1999 - Feb 2026 |
| Seeley Oil Company LLC | Colorado | 3,787 BBLs | 4,719 MCF | Jan 1999 - Feb 2026 |
| Select Natural Gas LLC | Colorado | 0 BBLs | 0 MCF | Jul 2000 - Aug 2001 |
| Setex Oil & Gas Company | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2004 |
| SG Interests I LTD | Colorado | 0 BBLs | 797,840 MCF | Jan 1999 - Mar 2026 |
| Shawnee Oil Development Co Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2025 |
| Silver Mountain Energy LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Dec 2025 |
| Simcoe LLC | Colorado | 7 BBLs | 6,754,592 MCF | Jan 1999 - Feb 2026 |
| Simmons, Inc.* D. J. | Colorado | 0 BBLs | 0 MCF | Jan 1999 - May 2020 |
| Slawson Exploration Company Inc | Colorado | 0 BBLs | 0 MCF | Jul 2010 - Apr 2013 |
| Smith Energy Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2024 |
| Smith Energy LLC | Colorado | 0 BBLs | 67,916 MCF | Jan 1999 - Mar 2026 |
| Smith Oil Properties Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Nov 2022 |
| Sonat Raton, L.L.C. | Colorado | 0 BBLs | 0 MCF | Jul 2000 - Jul 2000 |
| Sonterra Energy, L.L.C. | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jul 2022 |
| Southwestern Production Corp | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2001 |
| Sovereign Operating Company LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2016 |
| Spellbound Energy LLC | Colorado | 788 BBLs | 682 MCF | Nov 2015 - Feb 2026 |
| St Croix Operating Inc | Colorado | 1,141 BBLs | 0 MCF | Jan 1999 - Feb 2026 |
| St James Energy Operating Inc | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2003 |
| Standley* Robert K Dba Otis Energy | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Jan 2023 |
| Starlight Resources LLC | Colorado | 0 BBLs | 0 MCF | Jan 1999 - Apr 2006 |