Fuel prices in Carmarthen
7 forecourts, sorted by cheapest petrol. 3 price cuts since yesterday. Updated 14 Oct 2026, 16:39 BST.
Cheapest petrol
169.9p
Cheapest diesel
194.9p
Forecourts
7
| Forecourt | Petrol E10 | Diesel |
|---|---|---|
| Gwalia Garage Murco · Carmarthen | 169.9p 0.0 | 194.9p ▼ 1.0p |
| Tanerdy Garage Murco · Carmarthen | 170.9p 0.0 | 194.9p ▼ 2.0p |
| Derwydd Services Murco · Carmarthen | 170.9p ▲ 1.0p | 195.9p ▼ 2.0p |
| MFG Morrisons Carmarthen Morrisons · Carmarthen | 171.9p 0.0 | 196.9p 0.0 |
| Ascona Tenby Road Service Station Valero · Carmarthen | 173.9p 0.0 | 198.9p 0.0 |
| Cks Supermarket Murco · Carmarthen | 173.9p 0.0 | 198.9p 0.0 |
| Asda White Mill Express Petrol Esso · Carmarthen | 174.9p 0.0 | 199.9p 0.0 |