Petrol and Diesel Prices in Llanelli
Compare petrol and diesel prices at 9 petrol stations in Llanelli. Prices last updated 13:16 27/03/2026.
Petrol (E10)
140.9p
at LLANELLI EXTRA - PETROL FILLING STATION
Diesel (B7)
164.9p
at LLANELLI EXTRA - PETROL FILLING STATION
Super Unleaded (E5)
149.9p
at LLANELLI EXTRA - PETROL FILLING STATION
Premium Diesel
194.9p
at NTS LLANELLI SERVICE STATION
Unleaded (E10)
148.0p avg
2.4p below UK average (150.4p)
Diesel
176.0p avg
2.5p below UK average (178.5p)
Price History in Llanelli
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.
Llanelli currently has 9 petrol stations tracked by Fuel Costs UK. The average unleaded petrol price in Llanelli today is 148.0p per litre, which is 2.4p below the UK national average of 150.4p.
The cheapest unleaded petrol in Llanelli right now is 140.9p at LLANELLI EXTRA - PETROL FILLING STATION. The cheapest diesel is 164.9p at LLANELLI EXTRA - PETROL FILLING STATION.
Fuel prices in Llanelli 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.