| Business | Phone |
| Key Energy Svc 8700 Tesoro Dr, San Antonio 78217 | (210) 828-5522 |
| Loftis Co San Antonio 78209 | (210) 829-7133 |
| Newpark Drilling Fluids 8620 N New Braunfels Ave 534, San Antonio 78217 | (210) 820-3717 |
| Schlumberger Well Services 909 Ne Loop 410 634, San Antonio 78209 | (210) 824-7921 |
| Inland Environmental Remediatn 19365 Fm 2252 # 1, San Antonio 78266 | (210) 651-8275 |
| H & S Svc 8307 Knute Rockne St, San Antonio 78240 | (210) 543-9849 |