| 1 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 2 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
| 3 | Lainco Well Service | Hamlin, TX 79520 | Oil & Gas Operator | Dec 1996 |
| 4 | Lainco Well Service, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Aug 2011 |
| 5 | Lainco, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Dec 2024 |
| 6 | Laloc | Aspermont, TX 79502 | Oil & Gas Operator | Dec 2024 |
| 7 | Lane Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 2024 |
| 8 | Laneer Resources Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 9 | Lariat Land & Exploration, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 10 | Lawlis Oil Company | Hamlin, TX 79520 | Oil & Gas Operator | Dec 2024 |
| 11 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2024 |
| 12 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2024 |
| 13 | Leede Oil & Gas Inc. | Greenwood VLG, CO 80111 | Oil & Gas Operator | Aug 2003 |
| 14 | Leffel'S, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jun 2020 |
| 15 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Dec 2024 |
| 16 | Lewis Oil And Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2023 |
| 17 | Limark Corporation | Midland, TX 79702 | Oil & Gas Operator | Dec 2003 |
| 18 | Littlepage, Tommy | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 19 | Lomax Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Jun 2011 |
| 20 | Loudon Exploration, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 2008 |
| 21 | Lovelady, I. W. | Albuquerque, NM 87111 | Oil & Gas Operator | Jan 1996 |
| 22 | Lowrance & Ray Exploration, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Sep 2003 |
| 23 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Dec 2024 |