Compare petrol and diesel prices across 10 forecourts in Carmarthen, Swansea. Cheapest petrol from 168.9p, diesel from 194.9p. Updated today, 23 October 2026.
| Station | Unleaded | Diesel | Distance |
|---|---|---|---|
| MURCO - TANERDY GARAGE | 168.9p | 194.9p | 1 mi |
| MURCO - GWALIA GARAGE | 168.9p | 194.9p | 2.9 mi |
| TEXACO - VST TOWY SERVICES STATION | 169.9p | 197.9p | 1.3 mi |
| MORRISONS - MFG MORRISONS CARMARTHEN | 169.9p | 194.9p | 1.9 mi |
| MURCO - Derwydd Services | 170.9p | 195.9p | 3.8 mi |
| TESCO - CARMARTHEN EXTRA - PETROL FILLING STATION | 172.9p | 196.9p | 1.3 mi |
| VALERO - ASCONA TENBY ROAD SERVICE STATION | 172.9p | 196.9p | 3.3 mi |
| MURCO - CKs Supermarket | 173.9p | 198.9p | 1.6 mi |
| OIL 4 WALES LTD - oil 4 wales ltd Nantycaws | 173.9p | 199.9p | 4.6 mi |
| ASDA - ASDA WHITE MILL EXPRESS PETROL | 174.9p | 199.9p | 3.3 mi |
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