Carmarthen petrol prices compared across 12 forecourts. Find the cheapest petrol in Carmarthen right now — we update prices throughout the day so you always get the best price on fuel in Carmarthen, Dyfed.
| Station | Unleaded | 7d | Diesel | 7d |
|---|---|---|---|---|
| MURCO | 151.9p | -3 | 179.9p | -7 |
| Murco S/mkt | 152.9p | -3 | 185.9p | -3 |
| MURCO | 152.9p | -3 | 185.9p | -1 |
| TEXACO S/mkt | 154.9p | -2 | 187.9p | -2 |
| TESCO S/mkt ⚠️ | 155.9p | — | 189.9p | — |
| MORRISONS S/mkt ⚠️ | 155.9p | — | 189.9p | — |
| oil 4 wales ltd S/mkt ⚠️ | 156.9p | — | 191.9p | — |
| VALERO | 157.9p | — | 189.9p | -2 |
| VALERO | 157.9p | — | 189.9p | -2 |
| VALERO | 157.9p | — | 189.9p | -2 |
| ESSO | 157.9p | — | 191.9p | -1 |
| ESSO ⚠️ | 158.9p | — | 188.9p | — |
⚠️ One or more stations have not reported prices in over 7 days — prices shown may be out of date.