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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| H & C Oil Operating Inc. | Kansas | 4,457 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Habit Petroleum, LLC | Kansas | 809 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Heritage Oil L.L.C. | Kansas | 165 BBLs | 0 MCF | Jan 2020 - Feb 2026 |
| Herman L. Loeb, LLC | Kansas | 20,676 BBLs | 108,114 MCF | Jan 1980 - Feb 2026 |
| Hertel Oil Company | Kansas | 10 BBLs | 0 MCF | Apr 1980 - Jan 2026 |
| Hertel Oil Company LLC | Kansas | 1,125 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Hess Oil Company | Kansas | 6,724 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| HG Oil Holdings, LLC | Kansas | 15,342 BBLs | 3,391 MCF | Jan 2020 - Feb 2026 |
| Ia Operating, Inc. | Kansas | 6,427 BBLs | 0 MCF | Apr 1997 - Feb 2026 |
| Infinity Oil, Inc. | Kansas | 836 BBLs | 0 MCF | Feb 2012 - Feb 2026 |
| Jason Oil Company, LLC | Kansas | 6,581 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Kansas Crude Investments LLC | Kansas | 635 BBLs | 0 MCF | Jan 2010 - Feb 2026 |
| Karst Brothers Oil Co, A General Partnership | Kansas | 673 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| King Oil Operations, LLC | Kansas | 329 BBLs | 0 MCF | Jan 2010 - Feb 2026 |
| Knighton Oil Company, Inc. | Kansas | 4,522 BBLs | 1,288 MCF | Jan 1980 - Feb 2026 |
| Koron Investments, Inc. | Kansas | 1,468 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Landmark Resources, Inc. | Kansas | 10,776 BBLs | 4,598 MCF | Jan 1980 - Feb 2026 |
| Lario Oil & Gas Company | Kansas | 31,777 BBLs | 24,401 MCF | Jan 1980 - Feb 2026 |
| Lebsack Oil Production Inc. | Kansas | 5,432 BBLs | 942 MCF | Jan 1980 - Feb 2026 |
| Lonestar Oil Co | Kansas | 1,487 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| M G Oil Inc | Kansas | 6,294 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Mad Operators LLC | Kansas | 10,736 BBLs | 489 MCF | Jan 2020 - Feb 2026 |
| Mai Oil Operations, Inc. | Kansas | 44,630 BBLs | 321 MCF | Jan 1980 - Feb 2026 |
| McCoy Petroleum Corporation | Kansas | 29,175 BBLs | 29,992 MCF | Jan 1980 - Feb 2026 |
| Meridian Energy Inc. | Kansas | 4,105 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Messman Corporation | Kansas | 155 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Michael D. Weilert Oil Company | Kansas | 1,624 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Mid-Continent Energy Corp. | Kansas | 163 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Mid-Continent Resources, Inc. | Kansas | 807 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Mike Kelso Oil, Inc. | Kansas | 10,266 BBLs | 97,855 MCF | Jan 1980 - Feb 2026 |
| MJT Oil | Kansas | 624 BBLs | 0 MCF | Oct 1980 - Feb 2026 |
| Murfin Drilling Co., Inc. | Kansas | 68,080 BBLs | 1,403 MCF | Jan 1980 - Feb 2026 |
| Mustang Energy Corporation | Kansas | 4,112 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| New Age Oil LLC | Kansas | 1,740 BBLs | 0 MCF | Feb 1982 - Feb 2026 |
| Norstar Petroleum, Inc. | Kansas | 1,313 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Oil Producers, Inc. Of Kansas | Kansas | 6,257 BBLs | 49,014 MCF | Jan 1980 - Feb 2026 |
| Owen'S Pumping Service | Kansas | 1,054 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Patterson Energy LLC | Kansas | 53,595 BBLs | 851 MCF | Jan 2010 - Feb 2026 |
| Peak Operating LLC | Kansas | 2,134 BBLs | 0 MCF | Jan 2010 - Feb 2026 |
| Petroleum Property Services, Inc. | Kansas | 7,630 BBLs | 9,529 MCF | Jan 1980 - Feb 2026 |
| Pfeifer Explorations, LLC | Kansas | 315 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Production Drilling, Inc. | Kansas | 4,705 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Prospect Oil & Gas Corp | Kansas | 4,220 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| R. P. Nixon Operations, Inc | Kansas | 3,286 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Rama Operating Co., Inc. | Kansas | 14,989 BBLs | 2,184 MCF | Jan 1980 - Feb 2026 |
| Raney Oil Company, LLC | Kansas | 3,464 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Rapid Well Service, Inc. | Kansas | 157 BBLs | 0 MCF | Mar 1980 - Jan 2026 |
| Raymond Oil Company, Inc. | Kansas | 9,098 BBLs | 0 MCF | Jan 1980 - Feb 2026 |
| Rebel Oil LLC | Kansas | 812 BBLs | 0 MCF | Jan 2020 - Feb 2026 |
| Richland Oil Investments, LLC | Kansas | 488 BBLs | 0 MCF | Mar 1982 - Feb 2026 |