Petrol and diesel prices at Gallaghers Filling Station Ltd

Gallaghers Filling Station Ltd, BT79 9JR.

What it is charging

• Diesel: 194.9p a litre, 3.8p under the national average, filed Friday 30 October

Unleaded within 5 miles

• Creggan Cross Service Station: 159.9p a litre, 4.2 miles away

On a 55-litre tank at 40mpg. The distance is straight-line rather than by road, so a real trip is longer than the one costed here.