| 1 | La Delta Farms Oil Company LLC | | Oil & Gas Operator | Jul 2024 |
| 2 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
| 3 | La Mesa Production, Inc. | | Oil & Gas Operator | Apr 2004 |
| 4 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
| 5 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 6 | Legacy Resources Co., L.P. | | Oil & Gas Operator | Apr 2019 |
| 7 | Levinson Partners Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 1995 |
| 8 | LGS Exploration, Inc. | | Oil & Gas Operator | Jan 1991 |
| 9 | Liberty Resources, Inc. | | Oil & Gas Operator | Jun 2024 |
| 10 | Linder Oil Company,A Partnership | Shreveport, LA 71136 | Oil & Gas Operator | Dec 2024 |
| 11 | Littlefield Oil & Gas Company | | Oil & Gas Operator | Jan 1990 |
| 12 | Llog Expl. Co. | Metairie, LA 70005 | Oil & Gas Operator | Jan 2003 |
| 13 | Llog Exploration Company, L.L.C. | | Oil & Gas Operator | Sep 2024 |
| 14 | Llox, L.L.C. | Covington, LA 70433 | Oil & Gas Operator | Dec 2024 |
| 15 | Longville Production Co., Inc. | | Oil & Gas Operator | Sep 1995 |
| 16 | Louis J. Roussel | | Oil & Gas Operator | Sep 1991 |
| 17 | Louisiana Delta Oil Co, LLC | | Oil & Gas Operator | Jul 2024 |
| 18 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
| 19 | Loutex Energy, Inc. | Shrevesport, LA 71101 | Oil & Gas Operator | Apr 1992 |
| 20 | Lower Lafourche Corporation | | Oil & Gas Operator | Dec 1996 |
| 21 | Lynal, Inc. | | Oil & Gas Operator | Oct 1988 |
| 22 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |