| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jan 2024 |
| 2 | Lachenmayr Oil LLC | Newton, KS 67114 | Oil & Gas Operator | Jan 2024 |
| 3 | Landowner | Honolulu, HI | Oil & Gas Operator | Dec 2008 |
| 4 | Larson Operating | Oil & Gas Operator | Mar 2001 | |
| 5 | Larson Operating Company | Olmitz, KS 67564-8561 | Oil & Gas Operator | Dec 2019 |
| 6 | Lasmo Energy Cor | Oil Operator | Feb 1990 | |
| 7 | Leben Oil Corpor | Oil & Gas Operator | Apr 1991 | |
| 8 | Leiker, Edward P. | Hays, KS 67601 | Oil Operator | Apr 1992 |
| 9 | Liboc, Inc. | New York, NY 10110 | Oil & Gas Operator | Dec 2009 |