| 1 | L & F Drilling Co., Inc. (1) | Corpus Chrsti, TX 78479 | Oil & Gas Operator | Oct 2025 |
| 2 | L.T.D. Explorations Inc. | Alice, TX 78333 | Oil & Gas Operator | Oct 2025 |
| 3 | La Parrita Oil & Gas, Inc. | Rosenberg, TX 77471 | Oil & Gas Operator | May 2002 |
| 4 | Lagarto Company, The | Fredericksbrg, TX 78624 | Oil & Gas Operator | Apr 1995 |
| 5 | Lamay Corporation | Rosenberg, TX 77471 | Oil & Gas Operator | Oct 2025 |
| 6 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 7 | Laughlin, W. M. Estate | Premont, TX 78375 | Oil & Gas Operator | Jun 2003 |
| 8 | Left Behind Recovery, LLC | Luling, TX 78648 | Oil & Gas Operator | Oct 2025 |
| 9 | Legacy Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Oct 2025 |
| 10 | Lighthouse Exploration, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jul 2007 |
| 11 | Lighthouse Operating, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Jun 2021 |
| 12 | Lindholm Oil, Inc. | Mathis, TX 78368 | Gas Operator | Sep 2002 |
| 13 | Linn Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 14 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 15 | Live Oak Gas Company | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 16 | Live Oak Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | Oct 2025 |
| 17 | Live Oak/Operations, Inc. | Houston, TX 77019 | Gas Operator | Jul 2011 |
| 18 | Logas Energy, LLC | Lafayette, LA 70508 | Oil & Gas Operator | Oct 2025 |
| 19 | Low-End Oil LLC | Austin, TX 78748 | Oil Operator | Oct 2025 |
| 20 | LTX Productions, Inc. | Houston, TX 77095 | Oil & Gas Operator | Jul 2008 |
| 21 | Lucros International Corporation | Van Buren, AR 72956 | Oil & Gas Operator | Oct 2025 |
| 22 | Lundberg Operating Corporation | Dallas, TX 75225 | Oil & Gas Operator | Oct 2002 |
| 23 | Luttrell, T. Bruce Oil & Gas Opr | Freer, TX 78357 | Oil & Gas Operator | Mar 2008 |
| 24 | Lynd, J. L., Inc. | Austin, TX 78716 | Oil & Gas Operator | Sep 2009 |