Live prices
Cheapest petrol and diesel prices in Blackwood
8 forecourts tracked in Blackwood (8 reporting unleaded (E10), 8 reporting diesel (B7), 5 reporting premium (E5)). Prices last refreshed at 3:02pm on 14 September 2026.
The cheapest reported unleaded petrol (E10) in Blackwood is £7.49 a gallon (164.7p per litre) at Asda, High Street, Blackwood, Caerphilly. The average across 8 forecourts currently reporting this grade is £7.57 a gallon (166.6p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £0.95 on a 50-litre fill. That local average is 4.6p per litre below the UK average of 171.2p.
The average has risen 0.5p per litre since yesterday. The average has risen 4.7p per litre since last week.
Prices last refreshed at 3:02pm on 14 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
At 164.7p per litre, the cheapest unleaded in Blackwood is the highest we have recorded here in 4 weeks. The Blackwood average has risen 4.1p a litre over the past week. 2 forecourts in Blackwood have changed their unleaded price today.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.72/gal169.9p/L
- Average
- £7.57/gal166.6p/L
- Lowest
- £7.49/gal164.7p/L
Diesel Prices
Diesel (B7)
- Highest
- £8.72/gal191.9p/L
- Average
- £8.55/gal188.0p/L
- Lowest
- £8.44/gal185.7p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.50/gal186.9p/L
- Average
- £8.32/gal183.1p/L
- Lowest
- £8.41/gal184.9p/L
Super Diesel Prices
Super Diesel (SDV)
Not enough current price data.
All forecourts in Blackwood
8 forecourts in Blackwood, with live prices and full addresses. Showing 1 to 8.
High Street, Blackwood, Caerphilly · NP12 0NT
Usually cheapest 8am to 1pm, priciest 5pm to 10pm here
DirectionsDiesel B7
Newbridge RD Industrial Estate, Pontllanfraith, Blackwood · NP12 2AN
Usually cheapest midnight to 5am, priciest 11pm to midnight here
DirectionsDiesel B7
Premium E5
Williams Garage Ltd, Brynhoward Terrace, Oakdale, Blackwood · NP12 0LE
Usually cheapest midnight to 5am, priciest 9am to 2pm here
DirectionsDiesel B7
235 High ST, Blackwood, Caerphilly · NP2 1AH
Usually cheapest midnight to 5am, priciest 9pm to midnight here
DirectionsDiesel B7
Premium E5
Llewellyns Garage, 275, High Street, Blackwood · NP12 1AW
Usually cheapest midnight to 5am, priciest 10am to 3pm here
DirectionsDiesel B7
Premium E5
Crown Cross Service Station, Crown Lane, The Bryn, Blackwood · NP12 2HA
Usually cheapest midnight to 5am, priciest 10am to 3pm here
DirectionsDiesel B7
Premium E5
Diesel B7
ST. Davids Service Station, Pengam Road, Pengam, Blackwood, NP12 3SR, Blackwood · NP12 3SR
DirectionsDiesel B7
Premium E5
Search near Blackwood
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Asda
High Street, Blackwood, Caerphilly
164.7p/L
Cheapest reported diesel
Asda
High Street, Blackwood, Caerphilly
185.7p/L
By fuel grade in Blackwood
Nearby areas
Save more as a driver
Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.
Questions about fuel prices in Blackwood
- What is the average petrol price in Blackwood?
- The average unleaded (E10) petrol price in Blackwood is currently 166.6p per litre (approx. £7.57/gal), based on live data from 8 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Blackwood?
- The average diesel (B7) price in Blackwood is currently 188.0p per litre (approx. £8.55/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Blackwood?
- Asda at High Street, Blackwood, Caerphilly currently has the cheapest reported unleaded petrol in Blackwood at 164.7p per litre (approx. £7.49/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in Blackwood?
- According to official UK government fuel price data, St Davids Service Station (NP12 3SR) currently has the highest reported unleaded (E10) price in Blackwood at 169.9p per litre (approx. £7.72/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Blackwood?
- Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.