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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Rim Operating, Inc. | Montana | 4,224 BBLs | 1,717 MCF | Jan 1991 - Sep 2025 |
| Rim Operating, Inc. | New Mexico | 1,212 BBLs | 122,111 MCF | Nov 2017 - Sep 2025 |
| Rim Operating, Inc. | North Dakota | 12,679 BBLs | 6,404 MCF | Feb 2011 - Sep 2025 |
| Ritchie Exploration, Inc. | Kansas | 37,876 BBLs | 27,794 MCF | Jan 1980 - Jun 2025 |
| River Rock Operating, LLC | Kansas | 160 BBLs | 412,147 MCF | Jan 2010 - Jun 2025 |
| Riverside Energy Michigan LLC | Michigan | 2,186 BBLs | 2,965,774 MCF | Aug 2000 - Sep 2025 |
| RJ Energy, LLC | Kansas | 20,864 BBLs | 0 MCF | Jan 2010 - Jun 2025 |
| RJM Company | Kansas | 15,842 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| RL Investment, LLC | Kansas | 2,749 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Robert L Bayless Producer LLC | New Mexico | 169 BBLs | 90,518 MCF | Nov 1995 - Sep 2025 |
| Robert L Bayless Producer, LLC | Utah | 7,888 BBLs | 21,647 MCF | Aug 1958 - Sep 2025 |
| Robertson Energy, LLC | Louisiana | 2,684 BBLs | 3,610 MCF | Apr 2016 - Dec 2024 |
| Rock River Operating Inc | Wyoming | 2,241 BBLs | 4,294 MCF | Apr 1994 - Sep 2025 |
| Rockies Resources Holdings LLC | Wyoming | 243,120 BBLs | 323,545 MCF | Sep 2019 - Sep 2025 |
| Rockport Energy Solutions LLC | North Dakota | 30,516 BBLs | 62,575 MCF | Oct 2024 - Sep 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 | 4,204 BBLs | 13,124 MCF | May 2021 - Sep 2025 |
| Rouxopco LLC | Louisiana | 3,557 BBLs | 0 MCF | Dec 2020 - Dec 2024 |
| Royal Drilling Inc | Kansas | 1,315 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Rubicon Oil & Gas, LLC | New Mexico | 1,648 BBLs | 21,950 MCF | Sep 2002 - Sep 2025 |
| Rupe Oil Company, Inc. | Kansas | 1,272 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Russell Oil, Inc. | Kansas | 5,475 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| S & K Oil Production, Inc. | Kansas | 5,477 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| S.H. Loe Oil Corp. | Louisiana | 2,415 BBLs | 0 MCF | Oct 1986 - Jan 2025 |
| Sabinal Energy Operating, LLC | New Mexico | 6,000 BBLs | 11,406 MCF | Jul 2019 - Sep 2025 |
| Saga Resource Management LLC | Alabama | 0 BBLs | 380,861 MCF | Dec 1988 - Sep 2025 |
| Sage Butte PRB Operating, LLC | Wyoming | 151,607 BBLs | 453,816 MCF | Mar 2018 - Sep 2025 |
| Samson Exploration LLC | Wyoming | 118,488 BBLs | 181,646 MCF | Mar 2015 - Sep 2025 |
| Samson Oil And Gas USA, Inc | North Dakota | 11,531 BBLs | 5,563 MCF | Sep 2013 - Sep 2025 |
| Samuel Gary Jr. & Associates, Inc. | Kansas | 27,735 BBLs | 863 MCF | Jan 1980 - Jun 2025 |
| San Juan Resources, Inc. | New Mexico | 308 BBLs | 30,481 MCF | Jan 1993 - Oct 2025 |
| Sandpoint Energy Partners LLC | Louisiana | 2,252 BBLs | 0 MCF | Nov 2019 - Jan 2025 |
| Sandridge Exploration And Production LLC | Kansas | 2,499 BBLs | 207,863 MCF | Jan 1980 - Jun 2025 |
| Savoy Energy LP | Michigan | 35,696 BBLs | 11,691 MCF | Jan 1982 - Sep 2025 |
| Savoy Energy, LLC | Utah | 0 BBLs | 86,363 MCF | Mar 2005 - Oct 2025 |
| Schalk Development Co | New Mexico | 157 BBLs | 25,299 MCF | Jan 1993 - Sep 2025 |
| Schankie Well Service, Inc. | Kansas | 1,845 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Scheck Oil Operation | Kansas | 8,289 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Scott'S Production, LLC | Kansas | 2,014 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Scout Energy Management LLC | Colorado | 219,272 BBLs | 1,112 MCF | Jan 1999 - Oct 2025 |
| Scout Energy Management LLC | Kansas | 5,189 BBLs | 4,349,155 MCF | Jan 1980 - Jun 2025 |
| Scout Energy Management LLC | New Mexico | 15,596 BBLs | 45,104 MCF | Oct 2021 - Sep 2025 |
| Scout Energy Management LLC | North Dakota | 84,154 BBLs | 37,631 MCF | May 2016 - Sep 2025 |
| Scout Energy Management, LLC | Utah | 318,051 BBLs | 471,839 MCF | Dec 2022 - Sep 2025 |
| Seagull Operating Co., Inc. | Louisiana | 1,771 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Seeley Oil Company LLC | Colorado | 4,903 BBLs | 6,816 MCF | Jan 1999 - Sep 2025 |
| Seeley Oil Company, LLC | Utah | 1,211 BBLs | 1,649 MCF | Jan 2003 - Sep 2025 |
| Seely Oil Co | New Mexico | 2,527 BBLs | 4,387 MCF | Jan 1993 - Sep 2025 |
| Sek Energy, LLC | Kansas | 1,546 BBLs | 7,731 MCF | Jan 1980 - Jun 2025 |