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Live fuel prices

Petrol prices in Carmarthenshire

Unleaded from 157.9p a litre, averaging 163.7p across 14 stations we track in Carmarthenshire.

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At a glance

Stations tracked: 14
Local areas: 1
Cheapest unleaded: 157.9p
Cheapest diesel: 178.9p

Data updated 58 minutes ago

Petrol prices in Carmarthenshire move with the same forces you see across South Wales: how many forecourts sit within a short drive of each other, and whether a supermarket site is close enough to keep everyone honest.

The 14 petrol stations we monitor in Carmarthenshire report their prices directly to the government scheme, so the figures here are what the pumps are charging rather than an estimate.

Right now there is about 5.8p a litre between the cheapest unleaded in Carmarthenshire and the town average, which works out at roughly £2.92 on a typical 50 litre fill.

Diesel prices in Carmarthenshire run from 178.9p upward, averaging 184.7p across the sites we track.

The full spread across Carmarthenshire is about 29.0p a litre from cheapest to dearest, which is a wide range for one town and usually reflects a mix of supermarket and convenience-site pricing.

Scroll down for the cheapest petrol in Carmarthenshire we can currently see, along with the full spread across every grade.

Fuel prices Carmarthenshire - today’s snapshot

We track 14 active petrol stations in and around Carmarthenshire with recent prices. (Data updated 58 minutes ago)

Lowest reported petrol price: 157.9p at Murco near SA32 7DR, Carmarthenshire.

Unleaded petrol (E10)

Lowest price: 157.9p
Average price: 163.7p
Highest price: 186.9p
Spread: 29.0p across 14 sites

Diesel (B7)

Lowest price: 178.9p
Average price: 184.7p
Highest price: 199.9p
Spread: 21.0p across 14 sites

Premium petrol (E5)

Lowest price: 166.5p
Average price: 181.9p
Highest price: 194.9p
Spread: 28.4p across 8 sites

Premium diesel

Lowest price: 187.5p
Average price: 208.1p
Highest price: 214.9p
Spread: 27.4p across 4 sites

Figures cover stations reporting to the official CMA price feed within the last 30 days. We exclude obvious reporting errors - prices given in pounds rather than pence, retailer test records, and premium grades priced below the standard grade - so the averages reflect what you can actually pay.

Fuel brands in Carmarthenshire

Murco (4) Valero (3) Esso (3) Texaco (2) Windy Corner Garage (1) Oil 4 Wales Ltd (1)

Cheapest petrol stations in Carmarthenshire

Petrol and diesel prices Carmarthenshire, sorted by unleaded so the cheapest petrol is first. Open any station for its price history and nearby comparison.

Station	Local area	Petrol	Diesel
Murco Gwalia Garage, Carmarthen SA32 7DR	Carmarthenshire	157.9p	178.9p
Murco Bargoed Garage SA44 5EB	Carmarthenshire	157.9p	179.9p
Esso Tyssul Villa, Clynderwen SA66 7XB	Carmarthenshire	158.9p	183.9p
Murco Derwydd Garage, Carmarthen SA33 6TP	Carmarthenshire	158.9p	179.9p
Murco Harford, Carmarthenshire SA19 8DT	Carmarthenshire	159.9p	181.9p
Oil 4 Wales Ltd Nantycaws Filling Station Ltd, Caerfyrddin SA32 8BG	Carmarthenshire	159.9p	183.9p
Texaco Pensarnau Service Station Ltd, Castell Newydd Emlyn SA38 9HS	Carmarthenshire	159.9p	181.9p
Texaco A40 Manordeilo, Llandeilo SA19 7BN	Carmarthenshire	163.7p	186.7p
Valero Lysonnen Road, Carmarthen SA33 5DT	Carmarthenshire	164.9p	184.9p
Valero Tenby Road, St Clears SA33 4JP	Carmarthenshire	164.9p	185.9p

Wider area

See prices across South Wales if you want the bigger picture.

Places nearby

Drill into a specific area for its own price snapshot and cheapest stations.

Cardiff 30 stations from 160.9p Swansea 21 stations from 160.9p Newport 13 stations from 158.9p Bridgend 9 stations from 156.9p Pembrokeshire 9 stations from 156.9p Llanelli 8 stations from 159.9p Flintshire 8 stations from 160.9p Ceredigion 7 stations from 156.9p Caerphilly 5 stations from 157.9p Monmouthshire 5 stations from 167.9p Barry 5 stations from 159.7p Neath 5 stations from 158.9p Carmarthen 5 stations from 159.9p Pontypool 5 stations from 157.9p Cwmbrân 4 stations from 156.9p Blackwood 4 stations from 157.7p Aberdare 4 stations from 158.7p Merthyr Tydfil 4 stations from 163.9p Pontypridd 4 stations from 158.9p Port Talbot 4 stations from 161.9p Risca 3 stations from 164.8p Ystalyfera 3 stations from 160.9p Haverfordwest 3 stations from 160.9p

Common questions about fuel in Carmarthenshire

What is the latest reported petrol price in Carmarthenshire?

The latest reported petrol prices in Carmarthenshire run from 157.9p to 186.9p per litre, with an average of 163.7p across 14 stations. The lowest unleaded price we can see is 157.9p at MURCO near SA32 7DR.

What is the latest reported diesel price in Carmarthenshire?

The latest reported diesel prices in Carmarthenshire run from 178.9p to 199.9p per litre, with an average of 184.7p across 14 stations.

How many stations do you track around Carmarthenshire?

We currently track 14 active petrol stations in and around Carmarthenshire. Prices are refreshed from the official CMA fuel price feed throughout the day.

Where is the cheapest petrol in Carmarthenshire?

The cheapest petrol in Carmarthenshire we can currently see is 157.9p a litre at MURCO near SA32 7DR. That is 5.8p below the local average of 163.7p.

How many petrol stations are there in Carmarthenshire?

We track 14 petrol stations in and around Carmarthenshire with recent prices, including Murco, Valero, Esso. Each one is listed with its latest unleaded and diesel price.

How do I compare stations near Carmarthenshire?

Open the map to compare stations near Carmarthenshire and work out which stop makes sense for your route. You can sort by price or distance and filter to supermarket forecourts only.

Is it cheaper to fill up with petrol or diesel in Carmarthenshire?

Diesel currently averages 21.0p more per litre than unleaded in Carmarthenshire, at 184.7p against 163.7p. That gap changes with wholesale costs, so it is worth checking before a big fill.

Open the map for Carmarthenshire

Use the main finder with Carmarthenshire already centred, then sort by price or distance to pick your stop.

Open fuel finder for Carmarthenshire