Oil & Gas Companies in Allen County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Jun 2025 |
| 2 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 3 | L H Energy Incor | | Oil Operator | Dec 1991 |
| 4 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Oct 2025 |
| 5 | Landowner | Honolulu, HI | Oil & Gas Operator | Dec 2008 |
| 6 | Larson Buford | | Oil Operator | May 2006 |
| 7 | Laymon Oil II, LLC | Neosho Falls, KS 66758 | Oil Operator | Jun 2025 |
| 8 | Layton Oil Compa | | Oil & Gas Operator | Jul 1985 |
| 9 | Lee Donna Oil Co | | Oil & Gas Operator | Dec 1996 |
| 10 | Leedy Oil Produc | | Oil & Gas Operator | Dec 1995 |
| 11 | Leis Oil Services, LLC | Yates Center, KS 66783 | Oil Operator | Jul 2023 |
| 12 | Leis, John E. | Yates Center, KS 66783 | Oil Operator | Jun 2025 |
| 13 | Leis, VIctor J. | Paola, KS 66071 | Oil & Gas Operator | Jun 2025 |
| 14 | Levi Oil Company | Wichita, KS 67218 | Oil & Gas Operator | Nov 1993 |
| 15 | Lincoln 77, Inc. | Chanute, KS 66720 | Oil Operator | Dec 2001 |
| 16 | Lion Oil Company | Chanute, KS 66720 | Oil Operator | Dec 1986 |
| 17 | Little Joe'S Oil Company | | Oil Operator | Jul 2020 |
| 18 | Lone Jack Oil Co. | | Oil Operator | Jun 2025 |
| 19 | Long Shot Oil Co. | | Oil Operator | Aug 1997 |
| 20 | Lyons, Clarence Jr. | Chanute, KS 66720 | Oil Operator | Jun 2025 |
Production numbers shown above are only for Allen County, KS and for the production period listed.