Petrol and Diesel Prices in Carmarthenshire
Compare petrol and diesel prices at 1 petrol stations in Carmarthenshire. Prices last updated 16:56 24/09/2026.
Petrol (E10)
171.9p
at Checkpoint Service station
Diesel (B7)
199.9p
at Checkpoint Service station
Super Unleaded (E5)
193.9p
at Checkpoint Service station
Premium Diesel
N/A
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.
Carmarthenshire currently has 1 petrol station tracked by FuelCosts.co.uk.
The cheapest unleaded petrol in Carmarthenshire right now is 171.9p at Checkpoint Service station. The cheapest diesel is 199.9p at Checkpoint Service station.
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.