Live Chat I-37 Community Nearby Traffic Diamond Shamrock (Transport fuel) 2024-04-26 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Diamond Shamrock (Transport Fuel) Portland, TX 12.61 Gregory, TX 17.47 Taft, TX 20.45 Interstate highway exits close to Diamond Shamrock (Transport Fuel) Exit 1c, i37 0.53 Exit 1a, i37 0.55 Exit 1b, i37 0.55 Interstate highways close to Diamond Shamrock (Transport Fuel) i37 map 0.53 i35 map 192.71 i410tx map 197.45 State roads close to Diamond Shamrock (Transport Fuel) TX 35 map 0.74 TX 286 map 0.89 NHS HIGH PRIORITY CORRIDORS 18 map 2.58