Oil & Gas Companies in Guadalupe County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | La Vernia Oil | La Vernia, TX 78121 | Oil Operator | Oct 2025 |
| 2 | Lambeck Petroleum, LLC | Stockdale, TX 78160 | Oil Operator | Oct 2025 |
| 3 | Land, Cleatus H. Estate | Seguin, TX 78155 | Oil & Gas Operator | Mar 2001 |
| 4 | Landmen Of Texas, Inc. | Hondo, TX 78861 | Oil Operator | Dec 2016 |
| 5 | Larison Oil Company | Katy, TX 77494 | Oil & Gas Operator | Oct 2025 |
| 6 | Levant Energy LLC | Milton, MA 02186 | Oil Operator | Oct 2025 |
| 7 | Lif-Tex Oil Recovery, Inc. | Luling, TX 78648 | Oil Operator | Oct 2025 |
| 8 | Lively Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Oct 2025 |
| 9 | LMN Oil And Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Mar 2008 |
| 10 | Longshot Energy LLC | League City, TX 77573 | Oil Operator | Oct 2025 |
| 11 | Lott Production Company | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 12 | LP Operating, LLC | Boerne, TX 78006 | Oil & Gas Operator | Oct 2025 |
| 13 | LT Oil LLC | San Marcos, TX 78666 | Oil Operator | Oct 2025 |
| 14 | Luling O&G LLC | Cibolo, TX 78108 | Oil & Gas Operator | Oct 2025 |
| 15 | Luling Well Service | Luling, TX 78648 | Oil & Gas Operator | Oct 2025 |
| 16 | Lynch, W. Waldo | Uvalde, TX 78801 | Oil & Gas Operator | Jan 1996 |
Production numbers shown above are only for Guadalupe County, TX and for the production period listed.