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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Shakespeare Oil Co Inc | Montana | 1,890 BBLs | 0 MCF | May 1996 - Sep 2025 |
| Shakespeare Oil Co., Inc. | Kansas | 31,516 BBLs | 0 MCF | Jan 2004 - Jun 2025 |
| Shelby Resources LLC | Kansas | 1,625 BBLs | 0 MCF | Feb 1980 - Jun 2025 |
| 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 | 3,097 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Signal Hill Operating LLC | Wyoming | 14,016 BBLs | 623 MCF | Jan 2025 - Sep 2025 |
| 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 | 439,965 BBLs | 958,842 MCF | Jul 2024 - Sep 2025 |
| Silverback Operating II, LLC | New Mexico | 91,869 BBLs | 401,355 MCF | Dec 2021 - Sep 2025 |
| Simcoe LLC | Colorado | 9 BBLs | 7,738,326 MCF | Jan 1999 - Sep 2025 |
| Simcoe LLC | New Mexico | 3,561 BBLs | 4,671,053 MCF | May 2020 - Sep 2025 |
| Sinclair Oil & Gas Company | Montana | 1,881 BBLs | 1,723 MCF | Dec 1995 - Sep 2025 |
| Single Barrel Oil And Gas LLC | Louisiana | 7,355 BBLs | 0 MCF | Oct 2023 - Dec 2024 |
| Siroky Oil Management | Kansas | 2,290 BBLs | 7,239 MCF | Jan 1980 - Jun 2025 |
| Six Bar Oil LLC | Wyoming | 5,855 BBLs | 0 MCF | Apr 2017 - Sep 2025 |
| Sklar Exploration Company L.L.C. | Alabama | 33,360 BBLs | 39,456 MCF | May 2006 - Sep 2025 |
| Skye MS, LLC | Mississippi | 628 BBLs | 18,042 MCF | Jan 2022 - Aug 2025 |
| Slawson Exploration Company Inc | Montana | 12,431 BBLs | 24,391 MCF | Jun 1993 - Sep 2025 |
| Slawson Exploration Company, Inc. | North Dakota | 861,771 BBLs | 1,746,825 MCF | Jun 1989 - Sep 2025 |
| SMC Oil & Gas, Inc. | New Mexico | 4,530 BBLs | 13,603 MCF | Jan 2018 - Sep 2025 |
| Smith Energy LLC | Colorado | 0 BBLs | 71,919 MCF | Jan 1999 - Oct 2025 |
| Smith Red Plains Production LLC | Wyoming | 2,002 BBLs | 0 MCF | Dec 2022 - Oct 2025 |
| Snow Oil & Gas Inc | New Mexico | 1,172 BBLs | 1,689 MCF | Jan 1993 - Sep 2025 |
| Snowy Owl LLC | Wyoming | 9,689 BBLs | 4,299 MCF | Dec 2012 - Sep 2025 |
| Soap Creek Associates, Inc. | Montana | 2,562 BBLs | 0 MCF | Jan 1991 - Sep 2025 |
| Sogc, Inc. | North Dakota | 204,915 BBLs | 650,351 MCF | Dec 2022 - Sep 2025 |
| Soldier Operating LLC | Louisiana | 6,720 BBLs | 3,716 MCF | Oct 2020 - Dec 2024 |
| Somont Oil Company, Inc. | Montana | 5,247 BBLs | 14,034 MCF | Jan 1986 - Sep 2025 |
| South Carlton Operating Company, LLC | Alabama | 10,392 BBLs | 0 MCF | Jun 1950 - Sep 2025 |
| Southern Oil Of Louisiana LLC | Louisiana | 29,791 BBLs | 73,581 MCF | Nov 2019 - Dec 2024 |
| Southwest Royalties Inc | New Mexico | 60,021 BBLs | 622,344 MCF | Jan 1993 - Sep 2025 |
| Southwestern Production Corporation | Wyoming | 19,427 BBLs | 55,736 MCF | Jun 1999 - Sep 2025 |
| Sparrow Oil & Gas LLC | North Dakota | 1,476 BBLs | 568 MCF | Jan 2024 - Oct 2025 |
| Spartan Royalties, LLC | Louisiana | 5,891 BBLs | 0 MCF | Jun 2024 - Dec 2024 |
| Special Energy Corp | New Mexico | 3,646 BBLs | 45,828 MCF | Dec 1994 - Sep 2025 |
| Spellbound Energy LLC | Colorado | 1,299 BBLs | 1,960 MCF | Nov 2015 - Sep 2025 |
| Spellbound Energy LLC | Wyoming | 5,889 BBLs | 0 MCF | Jun 2018 - Sep 2025 |
| Spokane Operating, LLC | Louisiana | 315 BBLs | 21,595 MCF | Oct 2021 - Dec 2024 |
| Spotted Hawk Development, LLC | North Dakota | 9,561 BBLs | 16,304 MCF | Jun 2022 - Sep 2025 |
| Spur Energy Partners LLC | New Mexico | 797,424 BBLs | 2,796,014 MCF | Jul 2019 - Sep 2025 |
| St Croix Operating Inc | Colorado | 1,248 BBLs | 0 MCF | Jan 1999 - Sep 2025 |
| Staab Oil Co., A General Partnership | Kansas | 4,523 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Stanolind Permian LLC | New Mexico | 2,646 BBLs | 20,962 MCF | Mar 2021 - Sep 2025 |
| Stearns Oil Company LLC | North Dakota | 2,700 BBLs | 1,091 MCF | Nov 2021 - Sep 2025 |
| Stelbar Oil Corporation, Inc. | Kansas | 5,539 BBLs | 3,491 MCF | Jan 1980 - Jun 2025 |
| Stephens & Johnson Op Co | New Mexico | 15,296 BBLs | 65,461 MCF | Jan 1993 - Sep 2025 |
| Stephens Williston, LLC Dba Seg Williston, LLC | North Dakota | 39,947 BBLs | 41,476 MCF | Jun 2022 - Sep 2025 |
| Strand Energy, L.C. | Louisiana | 15,530 BBLs | 4,650 MCF | Jan 2004 - Dec 2024 |