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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Shelf Energy, LLC | Louisiana | 10,346 BBLs | 10,696 MCF | Nov 2008 - Dec 2024 |
| Shield Energy Resources, LLC | Louisiana | 1,201 BBLs | 0 MCF | Jan 2020 - Dec 2024 |
| Shields Oil Producers Inc. | Kansas | 2,240 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Signal Hill Operating LLC | Wyoming | 14,764 BBLs | 618 MCF | Jan 2025 - Feb 2026 |
| Signal Operating L.L.C. | Louisiana | 2,891 BBLs | 0 MCF | Sep 2024 - Jan 2025 |
| Silver Hill Energy Operating, LLC | Louisiana | 0 BBLs | 3,442,822 MCF | Dec 2021 - Dec 2024 |
| Silver Hill Energy Operating, LLC | North Dakota | 342,929 BBLs | 699,510 MCF | Jul 2024 - Feb 2026 |
| Simcoe LLC | Colorado | 0 BBLs | 7,566,070 MCF | Jan 1999 - Jan 2026 |
| Simcoe LLC | New Mexico | 1,993 BBLs | 7,096,343 MCF | May 2020 - Jan 2026 |
| Sinclair Oil & Gas Company | Montana | 1,236 BBLs | 1,528 MCF | Dec 1995 - Jan 2026 |
| Single Barrel Oil And Gas LLC | Louisiana | 7,355 BBLs | 0 MCF | Oct 2023 - Dec 2024 |
| Siroky Oil Management | Kansas | 2,027 BBLs | 5,379 MCF | Jan 1980 - Dec 2025 |
| Six Bar Oil LLC | Wyoming | 6,747 BBLs | 1,112 MCF | Apr 2017 - Feb 2026 |
| Sklar Exploration Company L.L.C. | Alabama | 36,048 BBLs | 41,404 MCF | May 2006 - Jan 2026 |
| Skye MS, LLC | Mississippi | 495 BBLs | 15,864 MCF | Jan 2022 - Feb 2026 |
| Slawson Exploration Company Inc | Montana | 11,755 BBLs | 24,342 MCF | Jun 1993 - Jan 2026 |
| Slawson Exploration Company, Inc. | North Dakota | 971,966 BBLs | 1,758,503 MCF | Jun 1989 - Feb 2026 |
| SM Energy Company | Utah | 1,522,310 BBLs | 1,661,352 MCF | Oct 2024 - Jan 2026 |
| SMC Oil & Gas, Inc. | New Mexico | 3,440 BBLs | 15,232 MCF | Jan 2018 - Jan 2026 |
| Smith Energy LLC | Colorado | 0 BBLs | 68,658 MCF | Jan 1999 - Jan 2026 |
| Smith Red Plains Production LLC | Wyoming | 1,926 BBLs | 0 MCF | Dec 2022 - Feb 2026 |
| Snow Oil & Gas Inc | New Mexico | 1,116 BBLs | 1,027 MCF | Jan 1993 - Jan 2026 |
| Snowy Owl LLC | Wyoming | 9,470 BBLs | 2,970 MCF | Dec 2012 - Jan 2026 |
| Soap Creek Associates, Inc. | Montana | 2,618 BBLs | 0 MCF | Jan 1991 - Jan 2026 |
| Sogc, Inc. | North Dakota | 148,623 BBLs | 563,323 MCF | Dec 2022 - Feb 2026 |
| Soldier Operating LLC | Louisiana | 6,720 BBLs | 3,716 MCF | Oct 2020 - Dec 2024 |
| Solis Partners, L.L.C. | New Mexico | 197 BBLs | 150,014 MCF | Sep 2020 - Jan 2026 |
| Somont Oil Company, Inc. | Montana | 5,332 BBLs | 23,853 MCF | Jan 1986 - Jan 2026 |
| South Carlton Operating Company, LLC | Alabama | 9,362 BBLs | 0 MCF | Jun 1950 - Jan 2026 |
| Southern Oil Of Louisiana LLC | Louisiana | 29,791 BBLs | 73,581 MCF | Nov 2019 - Dec 2024 |
| Southwest Royalties Inc | New Mexico | 48,343 BBLs | 552,878 MCF | Jan 1993 - Jan 2026 |
| Southwestern Production Corporation | Wyoming | 20,015 BBLs | 71,258 MCF | Jun 1999 - Feb 2026 |
| Sparrow Oil & Gas LLC | North Dakota | 1,403 BBLs | 0 MCF | Jan 2024 - Mar 2026 |
| Spartan Royalties, LLC | Louisiana | 5,891 BBLs | 0 MCF | Jun 2024 - Dec 2024 |
| Special Energy Corp | New Mexico | 2,450 BBLs | 21,517 MCF | Dec 1994 - Jan 2026 |
| Spellbound Energy LLC | Wyoming | 6,123 BBLs | 0 MCF | Jun 2018 - Feb 2026 |
| Spokane Operating, LLC | Louisiana | 315 BBLs | 21,595 MCF | Oct 2021 - Dec 2024 |
| Spotted Hawk Development, LLC | North Dakota | 7,187 BBLs | 12,498 MCF | Jun 2022 - Feb 2026 |
| Spur Energy Partners LLC | New Mexico | 642,432 BBLs | 2,228,215 MCF | Jul 2019 - Jan 2026 |
| St Croix Operating Inc | Colorado | 1,275 BBLs | 0 MCF | Jan 1999 - Jan 2026 |
| Staab Oil Co., A General Partnership | Kansas | 3,552 BBLs | 0 MCF | Jan 1980 - Dec 2025 |
| Stanolind Permian LLC | New Mexico | 2,806 BBLs | 3,733 MCF | Mar 2021 - Jan 2026 |
| Stearns Oil Company LLC | North Dakota | 2,006 BBLs | 1,601 MCF | Nov 2021 - Feb 2026 |
| Stelbar Oil Corporation, Inc. | Kansas | 5,277 BBLs | 3,043 MCF | Jan 1980 - Dec 2025 |
| Stephens & Johnson Op Co | New Mexico | 13,354 BBLs | 38,612 MCF | Jan 1993 - Feb 2026 |
| Stephens Williston, LLC Dba Seg Williston, LLC | North Dakota | 32,298 BBLs | 31,663 MCF | Jun 2022 - Feb 2026 |
| Sterling Operators Inc | Michigan | 1,166 BBLs | 0 MCF | Jan 1997 - Aug 2025 |
| Stone Oak Operating, LLC | Kansas | 1,422 BBLs | 0 MCF | Jan 2020 - Dec 2025 |
| Strand Energy, L.C. | Louisiana | 15,530 BBLs | 4,650 MCF | Jan 2004 - Dec 2024 |
| Strata Production Co | New Mexico | 180,288 BBLs | 506,529 MCF | Jan 1993 - Jan 2026 |