Carmarthen Fuel Prices

Find the cheapest petrol and diesel in Carmarthen. Compare live prices from local fuel stations, updated hourly from the official Fuel Finder feed.

Fuel price answer

cheapest petrol and diesel in Carmarthen

As of 2 November 2026, the cheapest unleaded petrol in Carmarthen is 165.9p/L at Murco TANERDY GARAGE, the cheapest diesel in Carmarthen is 193.9p/L at Murco TANERDY GARAGE. Across 7 stations, unleaded averages 166.9p/L and diesel 194.9p/L.

Unleaded (E10)

165.9p cheapest

Avg 166.9pHigh 167.9pSpread 2.0p4 priced

Diesel

193.9p cheapest

Avg 194.9pHigh 196.9pSpread 3.0p3 priced

Cheapest Unleaded (E10) in Carmarthen

  • 1. Murco — TANERDY GARAGE · CARMARTHEN165.9p
  • 2. Murco — GWALIA GARAGE · CARMARTHEN165.9p
  • 3. Morrisons — MFG MORRISONS CARMARTHEN · CARMARTHEN167.9p
  • 4. Valero — ASCONA TENBY ROAD SERVICE STATION · CARMARTHEN167.9p

Cheapest Diesel in Carmarthen

  • 1. Murco — TANERDY GARAGE · CARMARTHEN193.9p
  • 2. Murco — GWALIA GARAGE · CARMARTHEN193.9p
  • 3. Valero — ASCONA TENBY ROAD SERVICE STATION · CARMARTHEN196.9p

Data freshness

Updated 30 Oct 2026, 23:43

Methodology

PetrolPal groups stations by country, region, and city from postcode-derived location data. Local pages are designed to help drivers compare nearby petrol and diesel prices before choosing where to fill up.

Citation

Source: PetrolPal, using official UK forecourt fuel price data. Cite: https://petrolpal.co.uk/fuel-prices/wales/carmarthen

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About Carmarthen Fuel Prices

PetrolPal tracks live fuel prices in Carmarthen using official UK Government data, updated hourly. Compare petrol and diesel prices from supermarkets, branded stations, and independents to find the cheapest fuel near you.

Prices in Carmarthen are based on stations in the Wales. View the Carmarthen statistics page for detailed price analytics including brand averages, price distribution, and historical trends.

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