Petrol and diesel prices in Cas-Gwent

Cheapest petrol near Cas-Gwent right now: 173.9p at Tesco Chepstow Superstore, reported 15:10 on 15 Oct. Cheapest diesel: 198.9p at Tesco Chepstow Superstore.

  • Gulf Caldecot Fuel Express Automat showed 173.7p for petrol when it last reported, on 8 Oct. That price may have changed.
  • Gulf Caldecot Fuel Express Automat showed 198.7p for diesel when it last reported, on 8 Oct. That price may have changed.
  • Petrol is 1.2p a litre cheaper in Patchway, 9 miles away, from 172.7p.
  • Cas-Gwent is in the Monmouthshire council area, 55th dearest of 354 for petrol in the council league table, averaging 177.0p.
Cheapest petrol near Cas-Gwent
Gulf Caldecot Fuel Express Automat 173.7p 5 mi Newport Road, Newport, NP26 4XB · reported 8 Oct Tesco Chepstow Superstore 173.9p ¼ mi Tesco Stores Ltd, Cas-Gwent, NP16 5PB Esso MFG Chepstow 173.9p ¾ mi Newport Road, Chepstow, NP16 5YS Valero Tgc - Pwllmeyric 173.9p 1¾ mi Rakestrow, Chepstow, NP16 6LF EG Chepstow 174.7p 1½ mi Land South of Junction 2, Chepstow, NP16 6UP · reported 5 Oct BP Severn View Service Area 195.9p 3½ mi Severn View Service Area, BS35 4BH

Distance in miles from Cas-Gwent town centre, as the crow flies. Showing stations within 5 miles.

Cheapest diesel near Cas-Gwent
Gulf Caldecot Fuel Express Automat 198.7p 5 mi Newport Road, Newport, NP26 4XB · reported 8 Oct Tesco Chepstow Superstore 198.9p ¼ mi Tesco Stores Ltd, Cas-Gwent, NP16 5PB Esso MFG Chepstow 198.9p ¾ mi Newport Road, Chepstow, NP16 5YS Valero Tgc - Pwllmeyric 198.9p 1¾ mi Rakestrow, Chepstow, NP16 6LF EG Chepstow 199.7p 1½ mi Land South of Junction 2, Chepstow, NP16 6UP · reported 27 Sept Meredith Motors 199.9p 4½ mi Meredith Motors, Chepstow, NP16 6PE · reported 23 Sept BP Severn View Service Area 219.9p 3½ mi Severn View Service Area, BS35 4BH · reported 9 Oct

Distance in miles from Cas-Gwent town centre, as the crow flies. Showing stations within 5 miles.

Average petrol in Cas-Gwent173.9p−0.3p vs UK average
Average diesel in Cas-Gwent198.9p−0.3p vs UK average
UK average petrol174.2pdiesel 199.2p

Price trend

We started recording daily average prices in Cas-Gwent on 16 October 2026. The trend chart appears here once there are a few days of data.

Not in central Cas-Gwent?

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All petrol stations in Cas-Gwent

1 petrol station with a Cas-Gwent address, cheapest petrol first.

StationPetrolDieselReported
Tesco Chepstow SuperstoreTesco Stores Ltd, Cas-Gwent, NP16 5PB · Open 24 hours 173.9p198.9p 15 Oct

Supermarket fuel prices in Cas-Gwent

One supermarket forecourt in Cas-Gwent, cheapest petrol first.

StationPetrolDieselMiles
Tesco Chepstow SuperstoreTesco Stores Ltd, Cas-Gwent, NP16 5PB 173.9p198.9p<1

24-hour petrol stations in Cas-Gwent

1 station sells fuel 24 hours a day in Cas-Gwent, cheapest petrol first. Shop hours can be shorter; check the station page.

StationPetrolDieselMiles
Tesco Chepstow SuperstoreTesco Stores Ltd, Cas-Gwent, NP16 5PB 173.9p198.9p<1

Super unleaded, premium diesel and AdBlue in Cas-Gwent

Super unleaded (E5)

5 stations in and around Cas-Gwent sell super unleaded (e5), averaging 197.1p a litre. The cheapest is EG Chepstow at 188.9p.

Premium diesel

4 stations in and around Cas-Gwent sell premium diesel, averaging 224.9p a litre. The cheapest is Valero Tgc - Pwllmeyric at 219.9p.

AdBlue

AdBlue at the pump at EG Chepstow and BP Severn View Service Area.

Fuel price alerts for Cas-Gwent

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Fuel prices in nearby towns

Chepstow1 milesCaldicot7 milesLydney8 milesPatchway9 milesDursley11 milesUsk11 milesColeford11 milesBerkeley11 miles

Fuel prices across Monmouthshire · All towns in Wales

Questions about fuel prices in Cas-Gwent

Where is the cheapest petrol in Cas-Gwent?

Today the cheapest petrol near Cas-Gwent is 173.9p a litre at Tesco Chepstow Superstore, Tesco Stores Ltd, Cas-Gwent, NP16 5PB.

How much is diesel in Cas-Gwent today?

Diesel averages 198.9p a litre across 1 forecourt in Cas-Gwent, against a UK average of 199.2p.

Which supermarket has the cheapest petrol in Cas-Gwent?

Tesco Chepstow Superstore is cheapest at 173.9p a litre.

How up to date are these prices?

Forecourts report their prices to the government's Fuel Finder scheme and we refresh them twice a day. These were last updated 17:30 today. Each forecourt's table row shows the day its price was reported.

Is there a 24-hour petrol station in Cas-Gwent?

Yes. Tesco Chepstow Superstore sells fuel 24 hours a day.