| 1 | L-83, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 2 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 3 | La Aceite Energy, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jul 2025 |
| 4 | Lainco Well Service, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Aug 2011 |
| 5 | Lainco, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Jul 2025 |
| 6 | Landmaster Partners, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jul 2025 |
| 7 | Laneer Resources Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 8 | Lapco Oil & Gas Company | Houston, TX 77069 | Oil & Gas Operator | Oct 2015 |
| 9 | Lariat Land & Exploration, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 10 | Last Mile Production, LLC | Austin, TX 78746 | Oil & Gas Operator | Jul 2025 |
| 11 | Lawlis Oil Company | Hamlin, TX 79520 | Oil & Gas Operator | Jul 2025 |
| 12 | Lawrence Energy Company | Abilene, TX 79602 | Oil & Gas Operator | Jul 2025 |
| 13 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Jul 2025 |
| 14 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Jul 2025 |
| 15 | Ledger Operating Corporation | Abilene, TX 79601 | Oil Operator | Jul 2025 |
| 16 | Leroy Oil Co. | Gainesville, TX 76240 | Oil & Gas Operator | Jun 2002 |
| 17 | Levee Oil LLC | Tuscola, TX 79562 | Oil Operator | Jul 2025 |
| 18 | Lime Creek Enterprises | Aztec, NM 87410 | Oil & Gas Operator | Aug 2008 |
| 19 | LKKTX 2018, LLC | Wichita Falls, TX 76305 | Oil Operator | Jul 2025 |
| 20 | LMN Oil And Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Mar 2008 |
| 21 | Lone Star Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 22 | Lone Star Production | Lawn, TX 79530 | Oil & Gas Operator | Jul 2025 |
| 23 | Longhorn Oil Properties, Inc. | Pottsboro, TX 75076 | Oil & Gas Operator | Jul 2025 |
| 24 | Lowe, Dean | Albany, TX 76430 | Oil Operator | Jul 2025 |
| 25 | Lyco Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Jun 2015 |
| 26 | Lynx Energy Company, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 27 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Jul 2025 |