| Business | Phone |
| Drew Haley Oil Producers 1322 County Road 1175 E, Carmi 62821 | (618) 382-8646 |
| Elysium Energy 712 County Road 900 N, Carmi 62821 | (618) 265-3515 |
| Jim Haley Oil Production Co 1415 W Main St, Carmi 62821 | (618) 382-7338 |
| Ke Ron Oil Development 1420 County Road 718 E, Carmi 62821 | (618) 382-8631 |
| Rebstock Oil Co 1001 E Main St, Carmi 62821 | (618) 382-7313 |
| Ron Absher Office 1500 Oak St, Carmi 62821 | (618) 384-5500 |