| Business | Phone |
| Amsol Corp 903 Nw 13th St, Oklahoma City 73106 | (405) 236-2101 |
| Baker Petrolite 3109 Nw 54th St, Oklahoma City 73112 | (405) 946-4562 |
| Energy & Environmental Svc Inc 241 W Wilshire Blvd # A, Oklahoma City 73116 | (405) 843-8996 |
| Nalco Co 7915 Sw 34th St, Oklahoma City 73179 | (405) 745-2356 |