| 1 | La Roca Energy, LP | Dallas, TX 75207 | Oil & Gas Operator | Apr 2024 |
| 2 | Lacy, F. B. Inc. | Houston, TX 77055 | Oil & Gas Operator | Sep 1997 |
| 3 | Lacy, R., Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2002 |
| 4 | Lease Holders Acquisitions LLC | Yukon, OK 73099 | Gas Operator | Apr 2024 |
| 5 | Legacy Reserves Operating LP | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 6 | Legacy Resources Co., L.P. | Indianapolis, IN 46214 | Oil & Gas Operator | Apr 2019 |
| 7 | Lehnertz-Faulkner, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 8 | Leopard, Glenn | Malakoff, TX 75148 | Oil & Gas Operator | Aug 2003 |
| 9 | Leverage Operating, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Dec 2021 |
| 10 | Linder, John G. Jr. | Gladewater, TX 75647 | Oil & Gas Operator | Apr 2005 |
| 11 | Linder, John Operating Co., LLC | Gladewater, TX 75647 | Oil & Gas Operator | Apr 2024 |
| 12 | Llog Exploration Texas, L.P. | Covington, LA 70433 | Oil & Gas Operator | Apr 2024 |
| 13 | Locin Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 14 | Lockout Corporation | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 15 | Loin Energy Corporation | La Grange, TX 78945 | Oil & Gas Operator | Apr 2024 |
| 16 | Lone Star Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 17 | Lone Star Pipeline Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 18 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |