| Business | Phone |
| Southwest Resources Inc 114 E Alamo St, Brenham 77833 | (979) 836-5500 |
| Anadarko Petroleum Corp 615 E Horton St, Brenham 77833 | (979) 830-1352 |
| Douglas Petroleum 114 E Alamo St, Brenham 77833 | (979) 836-5503 |
| Hyperion Energy Lp 5005 Derrick Ln, Brenham 77833 | (979) 836-2023 |