| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | L & N Co. | Oil Operator | Jul 1991 | |
| 2 | Lagniappe Operating, LLC | Oil Operator | Dec 2024 | |
| 3 | Lago VIsta Operating, L.L.C. | Oil Operator | Dec 2024 | |
| 4 | Lahoma Operating, Inc. | Oil & Gas Operator | Jan 2025 | |
| 5 | Lawson Engineering, Inc. | Oil & Gas Operator | Dec 1984 | |
| 6 | Liberty Resources, Inc. | Oil & Gas Operator | Dec 2024 | |
| 7 | Louisiana Leasing & Expl, Inc. | Oil & Gas Operator | Apr 2011 | |
| 8 | LPB Oil Company | Oil & Gas Operator | Apr 1991 | |
| 9 | Lse Energy Co. | Oil Operator | Mar 1989 | |
| 10 | Lse Energy Operating Co. Inc. | Oil Operator | Jun 1996 |