Oil & Gas Companies in Milam County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Hall, D. Corporation | La Grange, TX 78945 | Oil & Gas Operator | Mar 2013 |
| 2 | Hamman Oil & Refining Company | Houston, TX 77098 | Oil & Gas Operator | Oct 2025 |
| 3 | Heartland Resources, Inc. | Temple, TX 76501 | Oil & Gas Operator | Mar 2008 |
| 4 | Heritage Petroleum Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Oct 2025 |
| 5 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Oct 2025 |
| 6 | Hollub Production Company | Seguin, TX 78156 | Oil & Gas Operator | Jul 2000 |
| 7 | Hollub, Lambert Drilling Company | Seguin, TX 78155 | Oil & Gas Operator | Oct 2025 |
| 8 | Houston Gulf Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2025 |
| 9 | Houston Petroleum Company | Houston, TX 77027 | Oil & Gas Operator | Oct 2025 |
| 10 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Milam County, TX and for the production period listed.