Oil & Gas Companies in Galveston County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
| 2 | El Tres Exploration | Houston, TX 77098 | Oil & Gas Operator | Mar 2008 |
| 3 | Elliott Oil & Gas Company | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2006 |
| 4 | Elliott Oil & Gas Operating Co. | Magnolia, TX 77354 | Oil & Gas Operator | Jul 2026 |
| 5 | Elliott Oil Company, L.P. | Magnolia, TX 77354 | Oil & Gas Operator | Jul 2026 |
| 6 | Energy Reserves Group LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 7 | Enron Oil & Gas Company | Houston, TX 77210 | Oil & Gas Operator | Dec 1999 |
| 8 | Enserch Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 9 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 10 | Erg Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2015 |
| 11 | Erin Oil Co. | Midland, TX 79707 | Oil & Gas Operator | Jul 2026 |
| 12 | Erskine Energy, LLC | Hot Springs V, AR 71909 | Oil & Gas Operator | Jul 2026 |
| 13 | Esco Oil Operating Company LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2026 |
| 14 | Esenjay Exploration, Inc | Houston, TX 77042 | Oil & Gas Operator | Mar 2026 |
| 15 | Expro Engineering, Inc. | Fort Worth, TX 76179 | Oil & Gas Operator | Jul 2026 |
| 16 | Extenergy, L.P. | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2014 |
| 17 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jan 2026 |
| 18 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Jul 2026 |
Production numbers shown above are only for Galveston County, TX and for the production period listed.