| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | L & A Energy LP | Oil Operator | Mar 2026 | |
| 2 | L & M Oil Compan | Oil & Gas Operator | Dec 1986 | |
| 3 | Lamberd, Clayton | Olathe, KS 66061 | Oil Operator | Mar 2026 |
| 4 | Layton Glenn F J | Oil Operator | Mar 1986 | |
| 5 | Layton Oil Compa | Oil & Gas Operator | Jul 1985 | |
| 6 | Leach, Elwood | Osawatomie, KS 66064 | Oil Operator | Dec 2009 |
| 7 | Leis, VIctor J. | Paola, KS 66071 | Oil & Gas Operator | Mar 2026 |
| 8 | LH Oil, LLC | Ottawa, KS 66067 | Oil Operator | Mar 2026 |
| 9 | Logsdon Richard | Oil Operator | Mar 1988 | |
| 10 | Lone Wolf Oil LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |