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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Rim Operating, Inc. | Montana | 6,418 BBLs | 3,308 MCF | Jan 1991 - May 2026 |
| Rim Operating, Inc. | New Mexico | 1,214 BBLs | 106,482 MCF | Nov 2017 - May 2026 |
| Rim Operating, Inc. | North Dakota | 14,060 BBLs | 6,792 MCF | Feb 2011 - May 2026 |
| Ritchie Exploration, Inc. | Kansas | 31,996 BBLs | 19,180 MCF | Jan 1980 - Mar 2026 |
| River Rock Operating, LLC | Kansas | 166 BBLs | 340,732 MCF | Jan 2010 - Mar 2026 |
| Riverside Energy Michigan LLC | Michigan | 3,171 BBLs | 2,747,506 MCF | Aug 2000 - Apr 2026 |
| RJ Energy, LLC | Kansas | 19,537 BBLs | 0 MCF | Jan 2010 - Mar 2026 |
| RJM Company | Kansas | 15,450 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| RL Investment, LLC | Kansas | 3,009 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Robert L Bayless Producer, LLC | Utah | 8,871 BBLs | 27,238 MCF | Aug 1958 - May 2026 |
| Robertson Energy, LLC | Louisiana | 2,684 BBLs | 3,610 MCF | Apr 2016 - Dec 2024 |
| Rockhound Petroleum, LLC | Kansas | 1,145 BBLs | 641 MCF | Jan 2020 - Mar 2026 |
| Rockport Energy Solutions LLC | North Dakota | 9,020 BBLs | 19,449 MCF | Oct 2024 - May 2026 |
| Ronny N. Davis | Louisiana | 1,282 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Rooster Production, LLC | Louisiana | 1,042 BBLs | 0 MCF | Jun 2012 - Jan 2025 |
| Rosestone Operating Company, LLC | Louisiana | 2,705 BBLs | 30,393 MCF | Aug 2019 - Dec 2024 |
| Roughhouse Operating, LLC | New Mexico | 2,676 BBLs | 11,762 MCF | May 2021 - May 2026 |
| Rouxopco LLC | Louisiana | 3,557 BBLs | 0 MCF | Dec 2020 - Dec 2024 |
| Royal Drilling Inc | Kansas | 1,126 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Rubicon Oil & Gas, LLC | New Mexico | 1,410 BBLs | 17,790 MCF | Sep 2002 - May 2026 |
| Rupe Oil Company, Inc. | Kansas | 966 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Russell Oil, Inc. | Kansas | 6,076 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| S & K Oil Production, Inc. | Kansas | 4,580 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| S.H. Loe Oil Corp. | Louisiana | 2,415 BBLs | 0 MCF | Oct 1986 - Jan 2025 |
| Saga Resource Management LLC | Alabama | 0 BBLs | 339,147 MCF | Dec 1988 - May 2026 |
| Sage Butte PRB Operating, LLC | Wyoming | 109,061 BBLs | 382,399 MCF | Mar 2018 - May 2026 |
| Saguaro Petroleum, LLC | New Mexico | 6,651 BBLs | 15,595 MCF | Nov 2018 - May 2026 |
| Samson Exploration LLC | Wyoming | 100,246 BBLs | 174,399 MCF | Mar 2015 - May 2026 |
| Samson Oil And Gas USA, Inc. | Montana | 11,005 BBLs | 6,109 MCF | May 2012 - May 2026 |
| Samuel Gary Jr. & Associates, Inc. | Kansas | 7,995 BBLs | 733 MCF | Jan 1980 - Mar 2026 |
| San Juan Resources, Inc. | New Mexico | 290 BBLs | 27,698 MCF | Jan 1993 - May 2026 |
| Sandlin Oil Corporation | Kansas | 1,272 BBLs | 0 MCF | Aug 1980 - Mar 2026 |
| Sandpoint Energy Partners LLC | Louisiana | 2,252 BBLs | 0 MCF | Nov 2019 - Jan 2025 |
| Sandridge Exploration And Production LLC | Kansas | 2,368 BBLs | 188,763 MCF | Jan 1980 - Mar 2026 |
| Savoy Energy LP | Michigan | 27,351 BBLs | 7,649 MCF | Jan 1982 - May 2026 |
| Savoy Energy, LLC | Utah | 0 BBLs | 162,459 MCF | Mar 2005 - Jun 2026 |
| Schankie Well Service, Inc. | Kansas | 1,808 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Scheck Oil Operation | Kansas | 8,729 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Sco Permian, LLC | New Mexico | 2,054 BBLs | 14,160 MCF | Oct 2021 - Jun 2026 |
| Scout Energy Management LLC | Colorado | 226,412 BBLs | 1,514 MCF | Jan 1999 - May 2026 |
| Scout Energy Management LLC | Kansas | 2,416 BBLs | 3,747,683 MCF | Jan 1980 - Mar 2026 |
| Scout Energy Management LLC | New Mexico | 17,385 BBLs | 44,095 MCF | Oct 2021 - May 2026 |
| Scout Energy Management LLC | North Dakota | 80,638 BBLs | 25,505 MCF | May 2016 - May 2026 |
| Scout Energy Management, LLC | Utah | 467,645 BBLs | 560,051 MCF | Dec 2022 - May 2026 |
| Seagull Operating Co., Inc. | Louisiana | 1,771 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Seeley Oil Company, LLC | Utah | 1,806 BBLs | 1,892 MCF | Jan 2003 - May 2026 |
| Seely Oil Co | New Mexico | 1,982 BBLs | 5,053 MCF | Jan 1993 - May 2026 |
| Sek Energy, LLC | Kansas | 996 BBLs | 4,772 MCF | Jan 1980 - Mar 2026 |
| Sep Legacy LLC | New Mexico | 51,973 BBLs | 549,640 MCF | Jan 2026 - May 2026 |
| SG Interests I LTD | Colorado | 142 BBLs | 565,023 MCF | Jan 1999 - May 2026 |