| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | L. B. Petroleum, Inc. | Denver, CO 80202 | Gas Operator | Jan 2016 |
| 2 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jun 2025 |
| 3 | Lasso Energy LLC | Chase, KS 67524 | Oil & Gas Operator | Jun 2025 |
| 4 | Lauck D R Oil Co | Oil & Gas Operator | Oct 1995 | |
| 5 | Leben Drilling I | Oil & Gas Operator | Dec 1988 | |
| 6 | Lebsack Oil Prod | Oil & Gas Operator | Nov 1995 | |
| 7 | Little Guy Oil & Gas, Inc. | Pratt, KS 67124 | Oil Operator | Aug 2013 |