Local price scan
Cheapest petrol and diesel prices in Cas-gwent
1 tracked forecourt in Cas-gwent, last updated 2 October 2026. Prices are pence per litre.
Unleaded petrol (E10)
174.9p
cheapest · 174.9p average across 1 station
Diesel (B7)
199.9p
cheapest · 199.9p average across 1 station
Cas-gwent price history
Daily average standard petrol and diesel prices across tracked local stations over the last 90 days.
Cas-gwent stations ranked by price
| CHEPSTOW SUPERSTORE - PETROL FILLING STATIONTESCO · NP16 5PB | 174.9p | 199.9p |
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Where these stations are
What drivers in Cas-gwent should know
We are still building a full price picture for Cas-gwent. As more forecourts report, this page will show the local spread between the cheapest and dearest pumps.
At 174.9p the average unleaded petrol (e10) price in Cas-gwent is above the UK-wide average of 174.7p that PumpScan is tracking, a difference of 0.2p per litre.
Brands represented locally include TESCO. Supermarket forecourts usually undercut motorway services by a wide margin, and prices in and around Cas-gwent tend to move within a day or two of a change in the wholesale oil price. Filling up mid-week and avoiding a near-empty tank on a motorway trip are the two simplest ways to keep costs down.
Compare Cas-gwent against the rest of the country on the cheapest petrol in the UK and cheapest diesel in the UK leaderboards.
All filling stations in Cas-gwent
Looking elsewhere? See all areas covered by PumpScan UK. Area slug: /petrol-prices/cas-gwent