Both Asda and Tesco (big UK supermarkets) have announced they are reducing fuel costs. The barrel price has dropped and this may be the reason. In recent months fuel prices have risen, but not in line with exchange rates worsening since the BREXIT vote. If you depend on your car for work, this is good news. It will help to reduce the inflation figures.
I guess this is a 2-edged sword as it means North Sea oil is worth less in exports. As a nation, we need to buy more UK goods and import less. We have become too reliant on imports.