Compare cheapest gas rates by city Last Updated on April 17, 2024 by David Hiley Looking to find who offers the cheapest gas rates for where you live? Click the links below to see the cheapest gas rates per Megajoule (MJ) by retailer available in each location. Sydney Cheapest Gas Rates Melbourne Cheapest Gas Rates Brisbane Cheapest Gas Rates Canberra Cheapest Gas Rates Adelaide Cheapest Gas Rates Newcastle Cheapest Gas Rates Gold Coast Cheapest Gas Rates Sunshine Coast Cheapest Gas Rates Wollongong Cheapest Gas Rates