| Business | Phone |
| Williams Energy Ventures 5101 N Middlebrook Pike, Knoxville 37921 | (865) 584-4924 |
| Citgo Petroleum Terminal 2409 Knott Rd, Knoxville 37921 | (865) 588-3555 |
| Calloway Oil Co Knoxville 37919 | (865) 558-9861 |
| Garron Oil 424 W Blount Ave, Knoxville 37920 | (865) 573-4534 |