| Business | Phone |
| Preferred Gas Svc 6135 Ariel St, Houston 77074 | (713) 272-8910 |
| Matheson Tri-Gas Inc 2200 Houston Ave, Houston 77007 | (713) 869-7351 |
| Gsf Energy Llc 9416 Ley Rd, Houston 77078 | (713) 633-9320 |
| M G Industries 8428 Market Street Rd, Houston 77029 | (713) 672-1325 |
| Liquid Air Energy Svc 515 W Greens Rd, Houston 77067 | (281) 875-3161 |