Fuel Map UK
Compare 12 active forecourts in Carmarthen. The cheapest unleaded is currently 169.9p and diesel is 194.9p per litre. Prices were last refreshed on 15th October 2026.
Showing all 12 active stations, initially sorted by unleaded price.
| Station | Unleaded | 7d | Diesel | 7d |
|---|---|---|---|---|
| MURCO | 169.9p | — | 194.9p | -1 |
| Murco S/mkt | 170.9p | +1 | 195.9p | -2 |
| MURCO | 170.9p | +1 | 194.9p | -2 |
| MORRISONS S/mkt | 171.9p | -2 | 196.9p | -2 |
| TEXACO S/mkt | 171.9p | -1 | 196.9p | -2 |
| TESCO S/mkt | 172.9p | -2 | 197.9p | -2 |
| VALERO | 173.9p | -1 | 197.9p | -2 |
| VALERO | 173.9p | -1 | 197.9p | -2 |
| VALERO | 173.9p | -1 | 198.9p | -1 |
| ESSO | 173.9p | -1 | 199.9p | — |
| oil 4 wales ltd S/mkt ⚠️ | 173.9p | — | 199.9p | — |
| ESSO ⚠️ | 174.9p | — | 199.9p | — |
⚠️ One or more stations have not reported prices in over 7 days — prices shown may be out of date.
Unleaded prices currently range from 169.9p to 174.9p per litre. Choosing the cheapest listed forecourt instead of the most expensive could save up to £2.50 on a 50-litre fill.
Diesel ranges from 194.9p to 199.9p per litre, a potential difference of £2.50 for 50 litres. Use the local map to see where lower-priced stations are concentrated, then open a station for its address, opening times and latest reported prices.