Compare petrol and diesel prices at stations in Merthyr Tydfil, Wales. Updated every 15 minutes.
As of 3 August 2026, the average price of petrol (E10) in Merthyr Tydfil is 161.1p per litre — in line with the UK average of 160.9p. The cheapest petrol in Merthyr Tydfil today is 156.9p at MIDGLANMORGAN, and diesel (B7) averages 181.8p (cheapest 175.9p).
Looking for the cheapest petrol and diesel in Merthyr Tydfil? Fuel Near You tracks live fuel prices at filling stations across Merthyr Tydfil and the wider Wales area, refreshed every 15 minutes from the official UK Government Fuel Finder scheme. Use the map below to compare E10 petrol, E5 super unleaded and diesel, spot the cheapest forecourt today, and get directions in a single tap. You can also compare fuel prices in nearby Blackwood, Pontypridd, Caerphilly.
Live E10 unleaded prices at the nearest forecourts · updated every 15 minutes
#1MIDGLANMORGAN156.9p#2Aberdare Service Station156.9p#3RONTEC MOUNTAIN ASH157.9p#4ASDA ABERDARE SUPERSTORE158.7p#5RHYMNEY GARAGE158.9p#6MFG MORRISONS EBBW VALE159.9p#7ABERCYNON SERVICE STATION159.9p#8ESSAR FERNDALE SERVICE STATION159.9p#9ABERDARE SUPERSTORE - PETROL FILLING STATION159.9p#10ASDA MERTHYR TYDFIL SUPERSTORE160.9p#11TREHARRIS SERVICE STATION163.9p#12Valley Heights Service Station164.9pLive B7 diesel prices at the nearest forecourts · updated every 15 minutes
#1ABERDARE SUPERSTORE - PETROL FILLING STATION175.9p#2RHYMNEY GARAGE175.9p#3ASDA ABERDARE SUPERSTORE176.7p#4MIDGLANMORGAN176.9p#5RONTEC MOUNTAIN ASH177.9p#6MFG MORRISONS EBBW VALE179.9p#7Aberdare Service Station179.9p#8ABERCYNON SERVICE STATION179.9p#9ASDA MERTHYR TYDFIL SUPERSTORE181.9p#10TREHARRIS SERVICE STATION183.9p#11TREDEGAR SERVICE STATION183.9p#12ESSAR FERNDALE SERVICE STATION185.9pFinding cheapest fuel in Merthyr Tydfil...
As of 3 August 2026, petrol (E10) in Merthyr Tydfil averages 161.1p per litre and diesel (B7) about 181.8p. Prices refresh every 15 minutes from the UK Government Fuel Finder scheme.
The cheapest petrol in Merthyr Tydfil right now is 156.9p per litre at Midglanmorgan. The live list above ranks every nearby forecourt by price.
Merthyr Tydfil is in line with the UK average — 161.1p locally versus 160.9p nationally for petrol.
Stations with live prices in and around Merthyr Tydfil include Midglanmorgan, Aberdare Service Station, Rontec Mountain Ash, Asda Aberdare Superstore, Rhymney Garage and more — see the full ranked list above, or open the live map for every forecourt with today's prices.