| 1 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 2 | La Aceite Energy, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Oct 2025 |
| 3 | Ladd Oil & Gas Corporation | Midland, TX 79711 | Oil & Gas Operator | Dec 2021 |
| 4 | Ladd Operating Company | Midland, TX 79711 | Oil & Gas Operator | Mar 2008 |
| 5 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 6 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Oct 2025 |
| 7 | Lakewood Operating, LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 8 | Landmaster Partners, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |
| 9 | Lapco Oil & Gas Company | Houston, TX 77069 | Oil & Gas Operator | Oct 2015 |
| 10 | Lariat Land & Exploration, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 11 | Lavanco Energy, LTD. | San Angelo, TX 76906 | Oil & Gas Operator | Feb 2024 |
| 12 | Lawrence Energy Company | Abilene, TX 79602 | Oil & Gas Operator | Oct 2025 |
| 13 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Oct 2025 |
| 14 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Oct 2025 |
| 15 | Lillis, Michael D. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 16 | Lime Creek Enterprises | Aztec, NM 87410 | Oil & Gas Operator | Aug 2008 |
| 17 | Littlepage, Tommy | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 18 | London Petroleum Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 19 | Lone Star Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 20 | Lone Star Production | Lawn, TX 79530 | Oil & Gas Operator | Oct 2025 |
| 21 | LP Operating, LLC | Boerne, TX 78006 | Oil & Gas Operator | Oct 2025 |
| 22 | Lucros International Corporation | Van Buren, AR 72956 | Oil & Gas Operator | Oct 2025 |
| 23 | Lumbley, W. F. | Hobbs, NM 88242 | Oil & Gas Operator | Jan 2008 |
| 24 | Lynx Oil Co., Inc. | Denton, TX 76207 | Oil & Gas Operator | Sep 2003 |
| 25 | Lyon Operating Company Inc.(Iii) | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2025 |
| 26 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Oct 2025 |