| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | L & K Oil | Oil Operator | Oct 1997 | |
| 2 | Lace Operating | Fort Worth, TX 76114 | Oil & Gas Operator | Jun 1997 |
| 3 | Lago VIsta Operating, L.L.C. | Oil Operator | Dec 2024 | |
| 4 | Lawson Engineering, Inc. | Oil & Gas Operator | Dec 1984 | |
| 5 | Liberty Resources, Inc. | Oil & Gas Operator | Dec 2024 | |
| 6 | Little & Whyte Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2008 |
| 7 | Long Oil & Natural Gas Corp. | Oil & Gas Operator | Feb 1996 | |
| 8 | Louisiana Fuel Oil Corporation | Oil Operator | Aug 1997 | |
| 9 | LPB Oil Company | Oil & Gas Operator | Apr 1991 |