| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | L. A. West | Gas Operator | Feb 2000 | |
| 2 | L. E. Hester | Gas Operator | Oct 2004 | |
| 3 | L. R. Resources II | Oil & Gas Operator | Feb 1991 | |
| 4 | La. Fete Oil & Gas, Inc. | Oil & Gas Operator | May 1995 | |
| 5 | Lahoma Gas Company | Gas Operator | Dec 1980 | |
| 6 | Lanmarc Resources | Oil Operator | Dec 2003 | |
| 7 | Laster Welding And Well Serv, Inc. | Gas Operator | Jul 2020 | |
| 8 | Lear Gas Transmission | Oil Operator | Aug 1989 | |
| 9 | Linn Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 10 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 11 | Lock Arbor Production Co | Gas Operator | Aug 1987 | |
| 12 | Louisiana Gas Development Corp | Oil & Gas Operator | Jul 2024 | |
| 13 | Louisiana Gas Production Co | Gas Operator | Dec 1996 | |
| 14 | Louisiana Minerals, LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 1988 |
| 15 | Luffey Gas Corp. | Gas Operator | Dec 2008 | |
| 16 | Luffey-Stinson Gas Corporation | Gas Operator | Sep 2018 | |
| 17 | Lyons Petroleum, Inc. | Oil & Gas Operator | Oct 1988 |