Petrol prices have started to fall slightly in recent weeks after a constant steady rise since around the summer.
The fall follows a report released earlier this month by the Competition and Markets Authority (CMA) highlighting the issue of rising petrol prices.
At the time the report was published on November 9, the CMA found that prices were up by at least 11p per litre for petrol and 13p per litre for diesel since May.
It was found that during June, July and August, the price increase appeared to be driven by global factors such as increased crude oil prices.
Wholesale prices were reduced in September and October but retail prices were not, meaning drivers still had to pay more than necessary at the pumps.