Guelph’s stations gather along its ring of retail corridors — Stone Road by the university, Woodlawn Road across the north end, Gordon Street and the Hanlon Expressway interchanges — with the Costco gas bar giving members a reliable floor. As a one-city market wedged between Kitchener–Waterloo and the 401, Guelph usually prices within a cent or two of the tri-cities but lags their sharpest swings by a few hours.
That lag is usable: when the tri-city pages show a fresh city-wide jump, Guelph stations often haven’t moved yet — and vice versa on the way down. The list below ranks every Guelph station we track by current price, refreshed hourly.