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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Rim Operating, Inc. | New Mexico | 1,196 BBLs | 128,008 MCF | Nov 2017 - Aug 2025 |
| Rim Operating, Inc. | North Dakota | 13,055 BBLs | 7,301 MCF | Feb 2011 - Aug 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 | 1,835 BBLs | 3,026,868 MCF | Aug 2000 - Jul 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 | 124 BBLs | 97,929 MCF | Nov 1995 - Jul 2025 |
| Robert L Bayless Producer, LLC | Utah | 7,951 BBLs | 26,314 MCF | Aug 1958 - Jul 2025 |
| Robertson Energy, LLC | Louisiana | 2,684 BBLs | 3,610 MCF | Apr 2016 - Dec 2024 |
| Rockies Resources Holdings LLC | Wyoming | 305,887 BBLs | 367,397 MCF | Sep 2019 - Jul 2025 |
| Rockport Energy Solutions LLC | North Dakota | 44,518 BBLs | 92,750 MCF | Oct 2024 - Aug 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 | 4,423 BBLs | 13,446 MCF | May 2021 - Jul 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 | 1,778 BBLs | 21,358 MCF | Sep 2002 - Jul 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 | 6,023 BBLs | 8,954 MCF | Jul 2019 - Aug 2025 |
| Saga Resource Management LLC | Alabama | 0 BBLs | 370,181 MCF | Dec 1988 - Jul 2025 |
| Sage Butte PRB Operating, LLC | Wyoming | 153,426 BBLs | 462,372 MCF | Mar 2018 - Aug 2025 |
| Saguaro Petroleum, LLC | New Mexico | 6,525 BBLs | 16,582 MCF | Nov 2018 - Jul 2025 |
| Samson Exploration LLC | Wyoming | 127,602 BBLs | 189,964 MCF | Mar 2015 - Aug 2025 |
| Samson Oil And Gas USA, Inc | North Dakota | 12,374 BBLs | 6,182 MCF | Sep 2013 - Aug 2025 |
| Samuel Gary Jr. & Associates, Inc. | Kansas | 27,735 BBLs | 863 MCF | Jan 1980 - Jun 2025 |
| San Juan Resources, Inc. | New Mexico | 389 BBLs | 30,370 MCF | Jan 1993 - Aug 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 | 39,055 BBLs | 13,068 MCF | Jan 1982 - Jul 2025 |
| Savoy Energy, LLC | Utah | 0 BBLs | 116,469 MCF | Mar 2005 - Aug 2025 |
| Schalk Development Co | New Mexico | 161 BBLs | 30,401 MCF | Jan 1993 - Aug 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 |
| Sco Permian, LLC | New Mexico | 1,485 BBLs | 7,029 MCF | Oct 2021 - Aug 2025 |
| Scott'S Production, LLC | Kansas | 2,014 BBLs | 0 MCF | Jan 1980 - Jun 2025 |
| Scout Energy Management LLC | Colorado | 236,886 BBLs | 0 MCF | Dec 2021 - Jul 2025 |
| Scout Energy Management LLC | Kansas | 5,189 BBLs | 4,349,155 MCF | Jan 1980 - Jun 2025 |
| Scout Energy Management LLC | New Mexico | 16,942 BBLs | 45,706 MCF | Oct 2021 - Aug 2025 |
| Scout Energy Management LLC | North Dakota | 91,709 BBLs | 44,716 MCF | May 2016 - Aug 2025 |
| Scout Energy Management, LLC | Utah | 322,005 BBLs | 497,376 MCF | Dec 2022 - Jul 2025 |
| Seagull Operating Co., Inc. | Louisiana | 1,771 BBLs | 0 MCF | Jan 1977 - Jan 2025 |
| Seeley Oil Company LLC | Colorado | 5,944 BBLs | 9,217 MCF | Dec 2015 - Jul 2025 |
| Seeley Oil Company, LLC | Utah | 1,472 BBLs | 1,784 MCF | Jan 2003 - Jul 2025 |
| Seely Oil Co | New Mexico | 1,952 BBLs | 4,851 MCF | Jan 1993 - Jul 2025 |
| Sek Energy, LLC | Kansas | 1,546 BBLs | 7,731 MCF | Jan 1980 - Jun 2025 |