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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Ritchie Exploration, Inc. | Kansas | 34,004 BBLs | 23,715 MCF | Jan 1980 - Sep 2025 |
| River Rock Operating, LLC | Kansas | 1,294 BBLs | 395,755 MCF | Jan 2010 - Sep 2025 |
| Riverside Energy Michigan LLC | Michigan | 2,398 BBLs | 2,994,930 MCF | Aug 2000 - Nov 2025 |
| RJ Energy, LLC | Kansas | 18,607 BBLs | 0 MCF | Jan 2010 - Sep 2025 |
| RJM Company | Kansas | 15,281 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| RL Investment, LLC | Kansas | 1,323 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Robert L Bayless Producer LLC | New Mexico | 186 BBLs | 89,375 MCF | Nov 1995 - Nov 2025 |
| Robert L Bayless Producer, LLC | Utah | 6,703 BBLs | 19,703 MCF | Aug 1958 - Nov 2025 |
| Robertson Energy, LLC | Louisiana | 2,684 BBLs | 3,610 MCF | Apr 2016 - Dec 2024 |
| Rock River Operating Inc | Wyoming | 2,407 BBLs | 4,502 MCF | Apr 1994 - Oct 2025 |
| Rockies Resources Holdings LLC | Wyoming | 232,773 BBLs | 343,008 MCF | Sep 2019 - Oct 2025 |
| Rockport Energy Solutions LLC | North Dakota | 34,499 BBLs | 74,557 MCF | Oct 2024 - Nov 2025 |
| Ronny N. Davis | Louisiana | 1,282 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Rosestone Operating Company, LLC | Louisiana | 2,705 BBLs | 30,393 MCF | Aug 2019 - Dec 2024 |
| Roughhouse Operating, LLC | New Mexico | 3,764 BBLs | 12,376 MCF | May 2021 - Nov 2025 |
| Rouxopco LLC | Louisiana | 3,557 BBLs | 0 MCF | Dec 2020 - Dec 2024 |
| Rubicon Oil & Gas, LLC | New Mexico | 1,588 BBLs | 18,086 MCF | Sep 2002 - Nov 2025 |
| Russell Oil, Inc. | Kansas | 5,288 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| S & K Oil Production, Inc. | Kansas | 5,527 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| S.H. Loe Oil Corp. | Louisiana | 2,415 BBLs | 0 MCF | Oct 1986 - Jan 2025 |
| Saga Resource Management LLC | Alabama | 0 BBLs | 364,503 MCF | Dec 1988 - Oct 2025 |
| Sage Butte PRB Operating, LLC | Wyoming | 127,851 BBLs | 351,614 MCF | Mar 2018 - Oct 2025 |
| Saguaro Petroleum, LLC | New Mexico | 5,859 BBLs | 12,695 MCF | Nov 2018 - Nov 2025 |
| Samson Exploration LLC | Wyoming | 117,213 BBLs | 186,033 MCF | Mar 2015 - Oct 2025 |
| Samson Oil And Gas USA, Inc | North Dakota | 11,688 BBLs | 5,843 MCF | Sep 2013 - Nov 2025 |
| Samson Oil And Gas USA, Inc. | Montana | 9,577 BBLs | 5,345 MCF | May 2012 - Nov 2025 |
| Samuel Gary Jr. & Associates, Inc. | Kansas | 24,176 BBLs | 1,004 MCF | Jan 1980 - Sep 2025 |
| San Juan Resources, Inc. | New Mexico | 456 BBLs | 29,147 MCF | Jan 1993 - Nov 2025 |
| Sandlin Oil Corporation | Kansas | 1,607 BBLs | 0 MCF | Aug 1980 - Sep 2025 |
| Sandpoint Energy Partners LLC | Louisiana | 2,252 BBLs | 0 MCF | Nov 2019 - Jan 2025 |
| Sandridge Exploration And Production LLC | Kansas | 2,848 BBLs | 204,896 MCF | Jan 1980 - Sep 2025 |
| Savoy Energy LP | Michigan | 33,815 BBLs | 9,179 MCF | Jan 1982 - Nov 2025 |
| Savoy Energy, LLC | Utah | 0 BBLs | 68,046 MCF | Mar 2005 - Dec 2025 |
| Schalk Development Co | New Mexico | 171 BBLs | 23,399 MCF | Jan 1993 - Nov 2025 |
| Schankie Well Service, Inc. | Kansas | 1,236 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Scheck Oil Operation | Kansas | 7,519 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Sco Permian, LLC | New Mexico | 2,187 BBLs | 2,845 MCF | Oct 2021 - Nov 2025 |
| Scott'S Production, LLC | Kansas | 1,760 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Scout Energy Management LLC | Colorado | 223,918 BBLs | 1,161 MCF | Jan 1999 - Oct 2025 |
| Scout Energy Management LLC | Kansas | 4,187 BBLs | 4,237,324 MCF | Jan 1980 - Sep 2025 |
| Scout Energy Management LLC | New Mexico | 15,673 BBLs | 43,843 MCF | Oct 2021 - Nov 2025 |
| Scout Energy Management LLC | North Dakota | 81,932 BBLs | 30,342 MCF | May 2016 - Nov 2025 |
| Scout Energy Management, LLC | Utah | 318,168 BBLs | 453,809 MCF | Dec 2022 - Nov 2025 |
| Seagull Operating Co., Inc. | Louisiana | 1,771 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Seeley Oil Company LLC | Colorado | 5,687 BBLs | 6,476 MCF | Jan 1999 - Nov 2025 |
| Seely Oil Co | New Mexico | 2,550 BBLs | 4,949 MCF | Jan 1993 - Nov 2025 |
| Sek Energy, LLC | Kansas | 1,222 BBLs | 7,084 MCF | Jan 1980 - Sep 2025 |
| SG Interests I LTD | Colorado | 2 BBLs | 578,620 MCF | Jan 1999 - Oct 2025 |
| Shackelford Oil Co | New Mexico | 4,164 BBLs | 7,846 MCF | Jan 1993 - Nov 2025 |
| Shakespeare Oil Co Inc | Montana | 1,837 BBLs | 0 MCF | May 1996 - Nov 2025 |