142 - Fuel map - 2016 + 2017 by postcode and avg price
This series of data is a big, huge data set of petrol price that I got from Open Data Transport for NSW - it's an amazing site\ with *so* much great data in there. You have to sign up to get the data. The time period is August 2016 to June 2017.
Data below shows a map of average fuel price by postcode and by average price.