Live prices · 8 forecourts

Petrol and diesel prices in Llanelli

Prices at 8 forecourts in Llanelli, as reported to the UK Government's Fuel Finder scheme. The cheapest unleaded today is 165.9p at MFG Morrisons Llanelli; the cheapest diesel is 194.7p at Asda Llanelli Murray Street Supercentre.

Updated 8 Nov 2026, 21:27Part of Carmarthenshire

Cheapest in Llanelli now

Live
  • Unleaded
  • Diesel
  • Super
  • Prem. diesel
Lowest price for each fuel among the forecourts below — each may be at a different forecourt.

Today's prices in Llanelli

Averages of every forecourt here with a price reported in the last 30 days, compared with the UK.

Unleaded (E10)

166.9paverage

£7.59 a gallon

2.5p below UK average

Cheapest 165.9p at MFG Morrisons Llanellireported 7 Nov 2026, 22:19

8 forecourts with a recent price

Diesel (B7)

196.3paverage

£8.92 a gallon

1.4p below UK average

Cheapest 194.7p at Asda Llanelli Murray Street Supercentrereported 5 Nov 2026, 22:22

7 forecourts with a recent price

Super unleaded (E5)

186.3paverage

£8.47 a gallon

1.0p below UK average

Cheapest 177.9p at Llanelli Extra - Petrol Filling Stationreported 4 Nov 2026, 13:54

5 forecourts with a recent price

Super diesel (B7)

215.9paverage

£9.82 a gallon

0.2p below UK average

Cheapest 215.9p at Nts Llanelli Service Stationreported 7 Nov 2026, 11:16

1 forecourt with a recent price

Every forecourt in Llanelli, cheapest first

Sort by any fuel. Each price shows when the forecourt reported it.

  • MFG Morrisons Llanelli

    Morrisons · SA14 9UZ · Pemberton Retail Park

    Unleaded
    165.9p7 Nov 2026, 22:19
    Diesel
    195.9p23 Oct 2026, 22:01
    Super
    185.9p5 Nov 2026, 22:04
    Prem. diesel
    —

    24 hours

  • Asda Llanelli Murray Street Supercentre

    Asda · SA15 1BX · Murray Street

    Unleaded
    166.7p5 Nov 2026, 22:22
    Diesel
    194.7p5 Nov 2026, 22:22
    Super
    —
    Prem. diesel
    —
  • Dafen Service Station

    Dafen Service Station · SA14 8NS · Dafen Service Station Ltd

    Unleaded
    166.9p5 Nov 2026, 10:24
    Diesel
    —
    Super
    196.9p5 Nov 2026, 10:24
    Prem. diesel
    —

    24 hours

  • MFG Panteg

    Valero · SA15 3TF · Panteg Road

    Unleaded
    166.9p5 Nov 2026, 23:08
    Diesel
    196.9p14 Oct 2026, 23:15
    Super
    185.9p5 Nov 2026, 23:08
    Prem. diesel
    —
  • Nts Llanelli Service Station

    Esso · SA15 1QD · 1

    Unleaded
    166.9p6 Nov 2026, 12:24
    Diesel
    197.9p7 Nov 2026, 11:16
    Super
    184.9p6 Nov 2026, 12:24
    Prem. diesel
    215.9p7 Nov 2026, 11:16

    24 hours

  • Sandy Road

    Murco · SA15 4DW · Sandy Road

    Unleaded
    166.9p6 Nov 2026, 12:00
    Diesel
    195.9p19 Oct 2026, 15:58
    Super
    —
    Prem. diesel
    —

    24 hours

  • Vst Bryn Gelli Services

    Texaco · SA14 9AD · Vst Bryn Gelli Services

    Unleaded
    166.9p6 Nov 2026, 03:12
    Diesel
    196.9p11 Oct 2026, 22:56
    Super
    —
    Prem. diesel
    —

    24 hours

  • Llanelli Extra - Petrol Filling Station

    Tesco · SA14 9UY · Tesco Stores Ltd

    Unleaded
    167.9p4 Nov 2026, 13:51
    Diesel
    195.9p2 Nov 2026, 16:00
    Super
    177.9p4 Nov 2026, 13:54
    Prem. diesel
    —

    24 hours

What the prices say in Llanelli

  • Unleaded in Llanelli runs from 165.9p to 167.9p — 2.0p apart, or £1.10 on a 55-litre tank.

  • The average unleaded price here is 2.5p below the UK average, and diesel is 1.4p below.

  • The 5 supermarket forecourts average 166.9p for unleaded — the same as the 3 other forecourts.

  • In the last 7 days 8 forecourts here changed an unleaded or diesel price 20 times: 19 cuts and 1 rises.

  • 6 forecourts sell fuel 24 hours a day. 24-hour petrol stations near you

Llanelli against the UK, day by day

Daily averages from the same forecourts and the same freshness rules as the table.

Unleaded

166p167p168p169p170p171p172p173p174p175p26 Sept17 Oct8 Nov169.4p UK166.9p Llanelli
LlanelliUK
Average unleaded price in Llanelli and across the UK
DayLlanelliUK
26 Oct170.8p173.0p
27 Oct170.4p172.8p
28 Oct170.3p172.6p
29 Oct169.6p172.3p
30 Oct169.6p171.9p
31 Oct169.6p171.8p
1 Nov169.6p171.7p
2 Nov168.8p171.4p
3 Nov168.6p171.0p
4 Nov168.5p170.7p
5 Nov167.5p170.2p
6 Nov167.0p169.7p
7 Nov166.9p169.5p
8 Nov166.9p169.4p

Diesel

196p197p198p199p200p26 Sept17 Oct8 Nov197.7p UK196.3p Llanelli
LlanelliUK
Average diesel price in Llanelli and across the UK
DayLlanelliUK
26 Oct196.4p198.8p
27 Oct196.4p198.7p
28 Oct196.4p198.6p
29 Oct196.4p198.6p
30 Oct196.4p198.4p
31 Oct196.4p198.4p
1 Nov196.3p198.4p
2 Nov196.2p198.4p
3 Nov196.2p198.3p
4 Nov196.2p198.2p
5 Nov196.0p198.0p
6 Nov196.0p197.9p
7 Nov196.3p197.8p
8 Nov196.3p197.7p

Across Carmarthenshire as a whole, unleaded averages 166.2p and diesel 195.7p.

Brands in Llanelli

Average unleaded price by brand, against the UK average.

Average unleaded price by brand in Llanelli
  • Morrisons1 forecourt165.9p
  • Asda1 forecourt166.7p
  • Dafen Service Station1 forecourt166.9p
  • Valero1 forecourt166.9p
  • Murco1 forecourt166.9p
  • Texaco1 forecourt166.9p
  • Esso1 forecourt166.9p
  • Tesco1 forecourt167.9p

UK average unleaded: 169.4pScale 165p – 170p

Questions about fuel in Llanelli

Where is the cheapest petrol in Llanelli today?

MFG Morrisons Llanelli (Pemberton Retail Park, SA14 9UZ) at 165.9p a litre, reported 7 Nov 2026, 22:19. Next is Asda Llanelli Murray Street Supercentre at 166.7p. Prices can change before you arrive.

Where is the cheapest diesel in Llanelli today?

Asda Llanelli Murray Street Supercentre (Murray Street, SA15 1BX) at 194.7p a litre, reported 5 Nov 2026, 22:22. Next is Llanelli Extra - Petrol Filling Station at 195.9p. Prices can change before you arrive.

What is the average price of petrol in Llanelli?

Unleaded (E10) averages 166.9p a litre across 8 forecourts, against 169.4p for the UK as a whole. Diesel averages 196.3p. The averages use only prices reported in the last 30 days.

Which forecourts in Llanelli are open 24 hours?

Llanelli Extra - Petrol Filling Station, Dafen Service Station, Sandy Road, Vst Bryn Gelli Services, Nts Llanelli Service Station and MFG Morrisons Llanelli list 24-hour fuel. Hours come from the retailers themselves; the station pages show each day's times.

How often do fuel prices change in Llanelli?

Over the last week, 8 forecourts changed an unleaded or diesel price, 20 times in all (19 cuts, 1 rises). Retailers must report each change to the Fuel Finder scheme within 30 minutes, and FuelWise picks it up at its next read of the feed.

Get told when fuel in Llanelli gets cheaper

Price-drop alerts, your saved stations and CarPlay are coming in the FuelWise iPhone app, which is in final testing. Prices here stay free on the web.

Coming soon

Prices are reported by the forecourts themselves to the UK Government's Fuel Finder scheme, which requires every change to be published within 30 minutes. FuelWise reads the feed every 15 minutes and last updated these figures on 8 Nov 2026, 21:27. Each price shows when it was reported; prices older than 30 days and stations that have stopped reporting are left out.

How we calculate averages · Contains public sector information licensed under the Open Government Licence v3.0.