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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| SG Interests I LTD | Colorado | 0 BBLs | 817,341 MCF | Jan 1999 - Apr 2026 |
| Shackelford Oil Co | New Mexico | 2,902 BBLs | 4,142 MCF | Jan 1993 - Apr 2026 |
| Shakespeare Oil Co Inc | Montana | 1,937 BBLs | 0 MCF | May 1996 - Apr 2026 |
| Shakespeare Oil Co., Inc. | Kansas | 25,397 BBLs | 0 MCF | Jan 2004 - Mar 2026 |
| 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 | 2,112 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Signal Hill Operating LLC | Wyoming | 14,762 BBLs | 988 MCF | Jan 2025 - May 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 | 349,268 BBLs | 768,382 MCF | Jul 2024 - May 2026 |
| Simcoe LLC | Colorado | 6 BBLs | 7,344,143 MCF | Jan 1999 - Mar 2026 |
| Simcoe LLC | New Mexico | 4,158 BBLs | 6,079,343 MCF | May 2020 - Apr 2026 |
| Single Barrel Oil And Gas LLC | Louisiana | 7,355 BBLs | 0 MCF | Oct 2023 - Dec 2024 |
| Siroky Oil Management | Kansas | 1,976 BBLs | 6,018 MCF | Jan 1980 - Mar 2026 |
| Six Bar Oil LLC | Wyoming | 6,649 BBLs | 1,819 MCF | Apr 2017 - May 2026 |
| Sklar Exploration Company L.L.C. | Alabama | 32,964 BBLs | 42,582 MCF | May 2006 - Mar 2026 |
| Skye MS, LLC | Mississippi | 705 BBLs | 14,410 MCF | Jan 2022 - Apr 2026 |
| Slawson Exploration Company Inc | Montana | 13,555 BBLs | 33,949 MCF | Jun 1993 - Apr 2026 |
| Slawson Exploration Company, Inc. | North Dakota | 1,305,711 BBLs | 2,575,572 MCF | Jun 1989 - May 2026 |
| SM Energy Company | Utah | 1,790,186 BBLs | 1,937,570 MCF | Oct 2024 - Apr 2026 |
| SMC Oil & Gas, Inc. | New Mexico | 3,499 BBLs | 11,664 MCF | Jan 2018 - May 2026 |
| SMG Resources LLC | Kansas | 1,136 BBLs | 369 MCF | Jan 2020 - Mar 2026 |
| Smith Energy LLC | Colorado | 0 BBLs | 68,745 MCF | Jan 1999 - Apr 2026 |
| Smith Red Plains Production LLC | Wyoming | 2,026 BBLs | 0 MCF | Dec 2022 - May 2026 |
| Snow Oil & Gas Inc | New Mexico | 1,201 BBLs | 1,589 MCF | Jan 1993 - Apr 2026 |
| Snowy Owl LLC | Wyoming | 8,220 BBLs | 1,724 MCF | Dec 2012 - Apr 2026 |
| Sogc, Inc. | North Dakota | 141,150 BBLs | 540,815 MCF | Dec 2022 - May 2026 |
| Soldier Operating LLC | Louisiana | 6,720 BBLs | 3,716 MCF | Oct 2020 - Dec 2024 |
| Solis Partners, L.L.C. | New Mexico | 174 BBLs | 128,175 MCF | Sep 2020 - Apr 2026 |
| Somoco Inc | Michigan | 1,402 BBLs | 2,034 MCF | Oct 1985 - May 2026 |
| Somont Oil Company, Inc. | Montana | 5,711 BBLs | 13,697 MCF | Jan 1986 - Apr 2026 |
| South Carlton Operating Company, LLC | Alabama | 8,886 BBLs | 0 MCF | Jun 1950 - Feb 2026 |
| South Pass Petroleum Inc | Wyoming | 939 BBLs | 18,126 MCF | Sep 2018 - May 2026 |
| Southern Oil Of Louisiana LLC | Louisiana | 29,791 BBLs | 73,581 MCF | Nov 2019 - Dec 2024 |
| Southwest Royalties Inc | New Mexico | 60,199 BBLs | 509,487 MCF | Jan 1993 - Apr 2026 |
| Southwestern Production Corporation | Wyoming | 17,810 BBLs | 57,019 MCF | Jun 1999 - May 2026 |
| Sparrow Oil & Gas LLC | North Dakota | 1,736 BBLs | 830 MCF | Jan 2024 - Jun 2026 |
| Spartan Royalties, LLC | Louisiana | 5,891 BBLs | 0 MCF | Jun 2024 - Dec 2024 |
| Special Energy Corp | New Mexico | 4,178 BBLs | 31,567 MCF | Dec 1994 - May 2026 |
| Spellbound Energy LLC | Colorado | 1,523 BBLs | 822 MCF | Nov 2015 - Mar 2026 |
| Spokane Operating, LLC | Louisiana | 315 BBLs | 21,595 MCF | Oct 2021 - Dec 2024 |
| Spotted Hawk Development, LLC | North Dakota | 8,193 BBLs | 13,848 MCF | Jun 2022 - May 2026 |
| Springline Operating LLC | North Dakota | 13,314 BBLs | 6,655 MCF | Feb 2026 - May 2026 |
| Spur Energy Partners LLC | New Mexico | 905,902 BBLs | 2,549,610 MCF | Jul 2019 - Apr 2026 |
| St Croix Operating Inc | Colorado | 1,259 BBLs | 0 MCF | Jan 1999 - Mar 2026 |
| Staab Oil Co., A General Partnership | Kansas | 3,214 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Stanolind Permian LLC | New Mexico | 2,879 BBLs | 2,775 MCF | Mar 2021 - May 2026 |
| Steamboat Oil And Gas LLC | Wyoming | 1,000 BBLs | 0 MCF | Sep 2022 - May 2026 |
| Stearns Oil Company LLC | North Dakota | 1,318 BBLs | 1,080 MCF | Nov 2021 - May 2026 |