| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | La Intrastate Gas Co LLC | Oil Operator | Apr 2004 | |
| 2 | Lancer Resources Company | Oil & Gas Operator | Jan 1998 | |
| 3 | Layton Oil Co. | Oil Operator | Feb 1994 | |
| 4 | Long Oil & Natural Gas Corp. | Oil & Gas Operator | Feb 1996 | |
| 5 | Long Oil And Gas Expl., LTD | Oil & Gas Operator | Apr 1988 | |
| 6 | Louisiana Intrastate Gas Corp. | Oil Operator | Feb 1994 | |
| 7 | Louisiana Operating Co., Inc. | Oil & Gas Operator | Aug 1994 | |
| 8 | Louisiana-Hunt Petroleum Corp. | Oil & Gas Operator | Dec 1985 | |
| 9 | Lucky Strike Production LLC | Oil Operator | Jan 2024 | |
| 10 | Lyons Petroleum, Inc. | Oil & Gas Operator | Oct 1988 |