Diamond Shamrock 2025-02-26 Roadnow click anywhere on map to find more poi nearby Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Diamond Shamrock Ransom Canyon, TX 13.73 mi Idalou, TX 18.89 mi New Deal, TX 19.20 miInterstate highway exits close to Diamond Shamrock Exit 3, i27 0.86 mi Exit 4, i27 1.61 mi Exit 2, i27 2.15 miInterstate highways close to Diamond Shamrock i27 map 0.86 mi i20 map 149.77 mi i40 map 179.10 miState roads close to Diamond Shamrock US 62 TX map 0.13 mi TX 114 map 0.23 mi US 87 TX map 0.81 mi