| Business | Phone |
| Jim's Well Svc 232 S Main St, Clay City 62824 | (618) 676-1199 |
| Kapp Co 312 S 1st St Se, Clay City 62824 | (618) 676-1000 |
| M & I Acid Co 1107 S Main St, Clay City 62824 | (618) 676-1638 |
| Ordner Well Svc 946 Sunset Rd Sw, Clay City 62824 | (618) 676-1950 |
| P D Svc Co 307 S 1st St Se, Clay City 62824 | (618) 676-1060 |
| Shelby's Well Svc 525 S 1st St Se, Clay City 62824 | (618) 676-1151 |
| Trilobite 701 S 1st St Se, Clay City 62824 | (618) 676-1827 |