Petrol and Diesel Prices in Carmarthenshire
Compare petrol and diesel prices at 2 petrol stations in Carmarthenshire. Prices last updated 05:56 11/05/2026.
Petrol (E10)
145.9p
at CHIVERS CORNER GARAGE
Diesel (B7)
169.9p
at CHIVERS CORNER GARAGE
Super Unleaded (E5)
152.9p
at CHIVERS CORNER GARAGE
Premium Diesel
N/A
Unleaded (E10)
151.0p avg
7.5p below UK average (158.5p)
Diesel
180.0p avg
9.0p below UK average (189.0p)
Price History in Carmarthenshire
See how fuel prices have changed over time with interactive charts and analysis.
Click any column header to sort. Prices shown in pence per litre.
Stations within a few miles of Carmarthenshire — worth the short drive for cheaper fuel.
Carmarthenshire currently has 2 petrol stations tracked by FuelCosts.co.uk. The average unleaded petrol price in Carmarthenshire today is 151.0p per litre, which is 7.5p below the UK national average of 158.5p.
The cheapest unleaded petrol in Carmarthenshire right now is 145.9p at CHIVERS CORNER GARAGE. The cheapest diesel is 169.9p at CHIVERS CORNER GARAGE.
Fuel prices in Carmarthenshire are sourced from the UK Government's CMA Fuel Finder scheme and updated every 4 minutes. We recommend comparing prices before filling up, as prices can vary significantly between stations even within the same town.