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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Stelbar Oil Corporation, Inc. | Kansas | 4,511 BBLs | 2,144 MCF | Jan 1980 - Mar 2026 |
| Stephens & Johnson Op Co | New Mexico | 15,579 BBLs | 60,919 MCF | Jan 1993 - May 2026 |
| Stephens Williston, LLC Dba Seg Williston, LLC | North Dakota | 34,780 BBLs | 33,071 MCF | Jun 2022 - May 2026 |
| Stone Oak Operating, LLC | Kansas | 1,632 BBLs | 0 MCF | Jan 2020 - Mar 2026 |
| Strachan Exploration Inc | Colorado | 7,310 BBLs | 44,725 MCF | Jan 1999 - Mar 2026 |
| Strand Energy, L.C. | Louisiana | 15,530 BBLs | 4,650 MCF | Jan 2004 - Dec 2024 |
| Strata Production Co | New Mexico | 140,464 BBLs | 467,431 MCF | Jan 1993 - Apr 2026 |
| Stratakan Exploration, LLC | Kansas | 3,517 BBLs | 3,419 MCF | Mar 2001 - Mar 2026 |
| Stroud Petroleum, Inc. | Louisiana | 709 BBLs | 51,794 MCF | Jun 1983 - Dec 2024 |
| Sugar Creek Producing Company, LLC | Louisiana | 3,192 BBLs | 33,641 MCF | Jan 2011 - Jan 2025 |
| Sun Coulee, LLC | Montana | 1,149 BBLs | 0 MCF | May 2022 - Apr 2026 |
| Sundance Energy Corporation | Louisiana | 1,035 BBLs | 0 MCF | Apr 1987 - Jan 2025 |
| Sunland Production Company, Inc. | Mississippi | 1,789 BBLs | 0 MCF | Dec 1976 - Apr 2026 |
| Sunshine Valley Petroleum | Wyoming | 7,626 BBLs | 42,778 MCF | Jan 1982 - May 2026 |
| Swanson Oil & Gas LLC | Montana | 997 BBLs | 1,123 MCF | Mar 2025 - Apr 2026 |
| Swanson Oil & Gas LLC | North Dakota | 4,165 BBLs | 9,130 MCF | Dec 2025 - May 2026 |
| Swevco - Sabw LLC | Colorado | 2,019 BBLs | 265,843 MCF | Jan 1999 - Mar 2026 |
| SWN Production (Louisiana), LLC | Louisiana | 0 BBLs | 23,182,084 MCF | Sep 2021 - Dec 2024 |
| T K Resources LLC | Wyoming | 1,081 BBLs | 842 MCF | Oct 2025 - May 2026 |
| T. O. Kimbrell, LLC | Mississippi | 2,633 BBLs | 1,119 MCF | Dec 1976 - Apr 2026 |
| T2 Operating Corporation | North Dakota | 3,566 BBLs | 458 MCF | May 2025 - May 2026 |
| Tai Inc Dba Trendwell Antrim Inc | Michigan | 0 BBLs | 109,972 MCF | Aug 2014 - Apr 2026 |
| Tall Dune Resources, LLC | Utah | 1,639 BBLs | 3,541 MCF | Sep 2021 - May 2026 |
| Talon Group LLC | Kansas | 4,554 BBLs | 0 MCF | Jan 2010 - Mar 2026 |
| Tamaroa Operating, LLC | New Mexico | 2,012 BBLs | 4,606 MCF | Oct 2019 - May 2026 |
| Tap Rock Operating, LLC | New Mexico | 267,611 BBLs | 1,430,498 MCF | Mar 2017 - Apr 2026 |
| Tascosa Energy Partners, L.L.C | New Mexico | 14,536 BBLs | 67,596 MCF | Mar 2020 - Apr 2026 |
| Tdi, Inc. | Kansas | 2,820 BBLs | 0 MCF | Jan 2010 - Mar 2026 |
| TDX Energy, LLC | Louisiana | 1,983 BBLs | 29,088 MCF | Jun 2011 - Dec 2024 |
| Te-Pe Oil & Gas | Kansas | 4,292 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Team Operating, L.L.C. | Louisiana | 180 BBLs | 41,197 MCF | Aug 2022 - Dec 2024 |
| Tellus Operating Group, LLC | Mississippi | 9,159 BBLs | 94,161 MCF | Jan 1970 - Apr 2026 |
| Texas Petroleum Investment Company | Louisiana | 290,200 BBLs | 579,659 MCF | May 1990 - Jan 2025 |
| Texas Petroleum Investment Company | Mississippi | 2,858 BBLs | 1,991 MCF | Jan 1970 - Apr 2026 |
| Texas Standard Operating NM LLC | New Mexico | 23,411 BBLs | 51,357 MCF | Nov 2025 - Apr 2026 |
| TGNR TVL LLC | Louisiana | 1,863 BBLs | 144,147 MCF | Aug 2020 - Dec 2024 |
| TGT Petroleum Corporation | Kansas | 1,567 BBLs | 1,577 MCF | Jan 1980 - Mar 2026 |
| The Bill Bowman Oil Company | Kansas | 1,759 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| The Termo Company | Louisiana | 9,136 BBLs | 139,018 MCF | Oct 1990 - Jan 2025 |
| The Termo Company | Wyoming | 1,299 BBLs | 919 MCF | Jun 1997 - May 2026 |
| Thomas Garner, Inc. | Kansas | 8,004 BBLs | 3,447 MCF | Jan 1980 - Mar 2026 |
| Thomas M. Brown LLC | Kansas | 2,129 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Thornton Page Natural Gas | Louisiana | 1,742 BBLs | 0 MCF | Jul 1995 - Dec 2024 |
| Thoroughbred Associates L.L.C. | Kansas | 2,152 BBLs | 12,771 MCF | Jan 1980 - Mar 2026 |
| Three Forks Resources, LLC | New Mexico | 2,724 BBLs | 1,849 MCF | Feb 2008 - Apr 2026 |
| Three Sisters Petroleum, Inc. | Louisiana | 11,506 BBLs | 0 MCF | Sep 1990 - Jan 2025 |
| Thresher Energy, Inc. | Kansas | 2,236 BBLs | 0 MCF | Jan 2020 - Mar 2026 |
| TMR Exploration, Inc. | Louisiana | 13,654 BBLs | 11,963 MCF | Dec 1985 - Dec 2024 |
| Toc Oil Inc | Wyoming | 8,577 BBLs | 9,372 MCF | Mar 2019 - Apr 2026 |
| Toc Oil, Inc | Utah | 1,998 BBLs | 0 MCF | Nov 2018 - May 2026 |