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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Shields Oil Producers Inc. | Kansas | 2,898 BBLs | 0 MCF | Jan 1980 - Apr 2025 |
| Signal Hill Operating LLC | Wyoming | 15,388 BBLs | 631 MCF | Jan 2025 - Jun 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 | 263,349 BBLs | 700,115 MCF | Jul 2024 - Jun 2025 |
| Silverback Operating II, LLC | New Mexico | 72,270 BBLs | 325,494 MCF | Dec 2021 - Jun 2025 |
| Simcoe LLC | Colorado | 0 BBLs | 7,198,666 MCF | Mar 2020 - Jun 2025 |
| Simcoe LLC | New Mexico | 8,235 BBLs | 4,459,515 MCF | May 2020 - Jun 2025 |
| Sinclair Oil & Gas Company | Montana | 2,026 BBLs | 3,477 MCF | Dec 1995 - Jun 2025 |
| Single Barrel Oil And Gas LLC | Louisiana | 7,355 BBLs | 0 MCF | Oct 2023 - Dec 2024 |
| Siroky Oil Management | Kansas | 2,999 BBLs | 6,447 MCF | Jan 1980 - Apr 2025 |
| Six Bar Oil LLC | Wyoming | 4,524 BBLs | 0 MCF | Apr 2017 - Jun 2025 |
| Sklar Exploration Company L.L.C. | Alabama | 33,575 BBLs | 49,339 MCF | May 2006 - May 2025 |
| Skye MS, LLC | Mississippi | 448 BBLs | 17,907 MCF | Jan 2022 - May 2025 |
| Slawson Exploration Company Inc | Montana | 14,987 BBLs | 40,157 MCF | Jun 1993 - Jun 2025 |
| Slawson Exploration Company, Inc. | North Dakota | 823,199 BBLs | 1,510,584 MCF | Jun 1989 - Jun 2025 |
| SMC Oil & Gas, Inc. | New Mexico | 5,298 BBLs | 15,034 MCF | Jan 2018 - Jun 2025 |
| Smith Energy LLC | Colorado | 0 BBLs | 72,764 MCF | Jan 2015 - Jul 2025 |
| Smith Oil Operations | Kansas | 1,129 BBLs | 2,075 MCF | Jan 1980 - Apr 2025 |
| Smith Red Plains Production LLC | Wyoming | 2,073 BBLs | 0 MCF | Dec 2022 - Jul 2025 |
| Snow Oil & Gas Inc | New Mexico | 1,194 BBLs | 1,880 MCF | Jan 1993 - Jun 2025 |
| Snowy Owl LLC | Wyoming | 7,620 BBLs | 0 MCF | Dec 2012 - Jun 2025 |
| Soap Creek Associates, Inc. | Montana | 2,592 BBLs | 0 MCF | Jan 1991 - Jun 2025 |
| Sogc, Inc. | North Dakota | 252,840 BBLs | 675,190 MCF | Dec 2022 - Jun 2025 |
| Soldier Operating LLC | Louisiana | 6,720 BBLs | 3,716 MCF | Oct 2020 - Dec 2024 |
| Solis Partners, L.L.C. | New Mexico | 224 BBLs | 148,172 MCF | Sep 2020 - Jun 2025 |
| Somont Oil Company, Inc. | Montana | 4,801 BBLs | 21,033 MCF | Jan 1986 - Jun 2025 |
| South Carlton Operating Company, LLC | Alabama | 9,845 BBLs | 0 MCF | Jun 1950 - Apr 2025 |
| Southern Oil Of Louisiana LLC | Louisiana | 29,791 BBLs | 73,581 MCF | Nov 2019 - Dec 2024 |
| Southwest Royalties Inc | New Mexico | 55,042 BBLs | 582,107 MCF | Jan 1993 - Jun 2025 |
| Southwestern Production Corporation | Wyoming | 21,344 BBLs | 55,234 MCF | Jun 1999 - Jun 2025 |
| Sparrow Oil & Gas LLC | North Dakota | 1,518 BBLs | 1,498 MCF | Jan 2024 - Jun 2025 |
| Spartan Royalties, LLC | Louisiana | 5,891 BBLs | 0 MCF | Jun 2024 - Dec 2024 |
| Special Energy Corp | New Mexico | 3,699 BBLs | 22,591 MCF | Dec 1994 - Jun 2025 |
| Spellbound Energy LLC | Colorado | 1,448 BBLs | 2,146 MCF | Nov 2023 - Jun 2025 |
| Spellbound Energy LLC | Wyoming | 5,687 BBLs | 0 MCF | Jun 2018 - Jun 2025 |
| Spokane Operating, LLC | Louisiana | 315 BBLs | 21,595 MCF | Oct 2021 - Dec 2024 |
| Spooner Petroleum Company, Inc. | Alabama | 1,143 BBLs | 249 MCF | May 1970 - May 2025 |
| Spotted Hawk Development, LLC | North Dakota | 7,046 BBLs | 12,135 MCF | Jun 2022 - Jun 2025 |
| Spur Energy Partners LLC | New Mexico | 522,413 BBLs | 2,260,697 MCF | Jul 2019 - Jun 2025 |
| St Croix Operating Inc | Colorado | 1,260 BBLs | 0 MCF | Jan 1999 - Jun 2025 |
| Staab Oil Co., A General Partnership | Kansas | 4,724 BBLs | 0 MCF | Jan 1980 - Apr 2025 |
| Stanolind Permian LLC | New Mexico | 2,911 BBLs | 26,028 MCF | Mar 2021 - Jun 2025 |
| State Line Exploration, LLC | Mississippi | 2,155 BBLs | 571 MCF | Feb 2022 - Jun 2025 |
| Stearns Oil Company LLC | North Dakota | 3,231 BBLs | 2,012 MCF | Nov 2021 - Jun 2025 |
| Stelbar Oil Corporation, Inc. | Kansas | 5,851 BBLs | 3,557 MCF | Jan 1980 - Apr 2025 |
| Stephens & Johnson Op Co | New Mexico | 15,178 BBLs | 75,996 MCF | Jan 1993 - Jun 2025 |
| Stephens Williston, LLC Dba Seg Williston, LLC | North Dakota | 52,751 BBLs | 47,914 MCF | Jun 2022 - Jun 2025 |
| Stone Oak Operating, LLC | Kansas | 1,341 BBLs | 900 MCF | Jan 2020 - Apr 2025 |
| Strand Energy, L.C. | Louisiana | 15,530 BBLs | 4,650 MCF | Jan 2004 - Dec 2024 |