Fuel prices in St Mary's
Compare current petrol, diesel, super unleaded and premium diesel prices across 1 St Mary's forecourts. Start with local averages, then use the map and table to compare like with like.
Current local averages
Four fuel grades, kept separate so every comparison stays useful.
Petrol (E10)
209p/l
34.9p above UK average
Diesel (B7)
223p/l
23.9p above UK average
Super unleaded (E5)
No price
No 7-day trend yet
Premium diesel (SDV)
No price
No 7-day trend yet
Live local prices
Current fuel prices in St Mary's
1 forecourts in St Mary's. Petrol (E10) is selected initially; choose another grade to compare like with like. Distances are measured from St Mary's centre.
Rank table byPetrol (E10) price
Prices checked 20 Oct 2026, 06:50. Individual rows show when that forecourt price was reported.
| Forecourt | Postcode and report | Petrol(E10), selected ranking | Diesel(B7) | Super unleaded(E5) | Premium diesel(SDV) | Distancefrom Isles Of Scilly centre | Opening times | Actions |
|---|---|---|---|---|---|---|---|---|
| 1Island CarriersIndependent forecourt | TR21 0JYReported 17 Oct 2026, 12:39 | 209pCheapest | 223pCheapest | - | - | Distance: <0.1 mi | Hours vary by dayMonday: 08:00 - 17:00; Tuesday: 08:00 - 17:00; Wednesday: 08:00 - 17:00; Thursday: 08:00 - 17:00; Friday: 08:00 - 17:00; Saturday: 08:00 - 17:00; Sunday: 00:00 - 00:00; Bank holidays: 08:00 - 17:00 | Details |
How to read this page
About fuel prices in St Mary's
Coverage, freshness and comparison scope matter as much as the headline price.
St Mary's has 1 forecourts included on this page, with current prices available from 1. The table initially ranks forecourts by current petrol (E10) price. Choose another fuel grade to compare like with like; distance and station name order equal or unavailable prices. Station status, distance and update freshness remain visible for comparison.
This page compares Petrol and Diesel using official UK Fuel Finder data, local averages, regional benchmarks and UK average comparisons where coverage is available.
Thirty-day evidence
How local fuel prices are moving
Daily local averages by fuel grade. The complete daily values remain available in the page even when the chart is enhanced.
- Petrol (E10) in St Mary's: 205p/l average on 20 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 21 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 22 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 23 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 24 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 25 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 26 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 27 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 28 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 29 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 30 September 2026.
- Petrol (E10) in St Mary's: 205p/l average on 1 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 2 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 3 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 4 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 5 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 6 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 7 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 8 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 9 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 10 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 11 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 12 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 13 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 14 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 15 October 2026.
- Petrol (E10) in St Mary's: 205p/l average on 16 October 2026.
- Petrol (E10) in St Mary's: 209p/l average on 17 October 2026.
- Petrol (E10) in St Mary's: 209p/l average on 18 October 2026.
- Petrol (E10) in St Mary's: 209p/l average on 19 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 20 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 21 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 22 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 23 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 24 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 25 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 26 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 27 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 28 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 29 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 30 September 2026.
- Diesel (B7) in St Mary's: 223p/l average on 1 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 2 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 3 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 4 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 5 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 6 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 7 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 8 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 9 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 10 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 11 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 12 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 13 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 14 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 15 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 16 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 17 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 18 October 2026.
- Diesel (B7) in St Mary's: 223p/l average on 19 October 2026.
- Petrol (E10)Petrol in St Mary's rose 4p/l, from 205p/l on 20 September to 209p/l on 19 October. Over the latest 7 days, the average rose 4p/l, which continues the wider rise. Across the completed days, the local average ranged from 205p/l to 209p/l across 1 reporting forecourts.209p/l4p
- Diesel (B7)Diesel in St Mary's ended the period broadly where it started, moving from 223p/l on 20 September to 223p/l on 19 October. The latest 7 days were steadier, with the average little changed since 12 October. Across the completed days, the local average ranged from 223p/l to 223p/l across 1 reporting forecourts.223p/lNo change
What the local trend means
St Mary's 30-day trends show petrol up 4p. The widest current local spread is 0p/l on petrol (e10), so comparing forecourts can materially change the pump price.
Price range and benchmarks
What choosing a cheaper forecourt could change
The average comparison is the more realistic decision baseline. The highest-price comparison is only the maximum currently listed difference.
Petrol (E10)
0p/l range
209p/l cheapest, 209p/l highest
- Cheapest vs average
- £0.00 less than the local average on a 55-litre fill
- Full listed range
- £0.00 maximum listed difference on a 55-litre fill
Diesel (B7)
0p/l range
223p/l cheapest, 223p/l highest
- Cheapest vs average
- £0.00 less than the local average on a 55-litre fill
- Full listed range
- £0.00 maximum listed difference on a 55-litre fill
Super unleaded (E5)
No pricep/l range
No price cheapest, No price highest
- Cheapest vs average
- £0.00 less than the local average on a 55-litre fill
- Full listed range
- £0.00 maximum listed difference on a 55-litre fill
Premium diesel (SDV)
No pricep/l range
No price cheapest, No price highest
- Cheapest vs average
- £0.00 less than the local average on a 55-litre fill
- Full listed range
- £0.00 maximum listed difference on a 55-litre fill
St Mary's compared with regional and UK fuel prices
Every row compares the same grade locally, regionally and nationally.
| Fuel grade | Local average | Region | UK | Versus UK |
|---|---|---|---|---|
| Petrol (E10) | 209 | 174.8 | 174.1 | 34.9p higher |
| Diesel (B7) | 223 | 200 | 199.1 | 23.9p higher |
| Super unleaded (E5) | No price | 192 | 191.9 | No UK average |
| Premium diesel (SDV) | No price | 219.1 | 218.3 | No UK average |
St Mary's is broadly in line with current regional and UK fuel averages where enough benchmark data is available.
Local forecourt market
Supermarket, major-brand and independent fuel prices in St Mary's
A compact local comparison of supermarkets, major brands and independents. Follow a qualifying brand into its full UK comparison.
Forecourt-type averages
Lowest current category average for each fuel grade is highlighted.
Petrol (E10)
- Supermarkets
- No price
- Major brands
- No price
- Independent forecourts
- 209p/l
Diesel (B7)
- Supermarkets
- No price
- Major brands
- No price
- Independent forecourts
- 223p/l
Qualifying named-brand observations
- Independent forecourts1 forecourt209p/lPetrol (E10)
At category level, the lowest current averages come from independent forecourts for Petrol (E10) and Diesel (B7). There is not enough current supermarket or major-brand coverage to identify a named operator leader. There is not enough 30-day history to describe the direction of supermarket or major-brand prices reliably. The independent comparison covers 1 forecourt reporting Petrol (E10) and Diesel (B7), so its averages should be read with that coverage in mind.
Local context
Compare the wider local market
Nearby places and named local areas add useful context, but the forecourt table remains the decision source for the journey you are making.
Fuel prices in nearby locations
Compare petrol and diesel separately in nearby locations.
Areas with the lowest average fuel prices in St Mary's
There is not enough mapped sub-area coverage inside St Mary's to show authoritative cheapest-area rankings yet.
Premium fuel availability
Coverage and benchmark context for fuels that are not stocked at every forecourt.
Super unleaded availability
Super unleaded (E5) is not currently reported by the forecourts shown for St Mary's.
- Average
- No price
- Reporting
- 0 stations
- Availability
- 0% availability
- Versus UK
- No UK comparison
Premium diesel availability
Premium diesel (SDV) is not currently reported by the forecourts shown for St Mary's.
- Average
- No price
- Reporting
- 0 stations
- Availability
- 0% availability
- Versus UK
- No UK comparison
Good to know
Fuel price FAQs for St Mary's
Use the current local evidence to choose a forecourt, compare nearby places and understand how coverage and freshness affect the figures.
What is the cheapest fuel price in St Mary's today?
How are St Mary's fuel forecourts ranked?
Are fuel prices in St Mary's below the UK average?
How recent are the St Mary's fuel prices on this page?
Why do some St Mary's forecourts not show every fuel price?
Should I compare nearby locations before filling up in St Mary's?
How can I compare fuel prices around my current location?
Built on real fuel-price data
Prices are sourced from the UK Government Fuel Finder scheme. Prices checked 20 Oct 2026, 06:50. See how we qualify and compare prices
- Retailer reporting target
- 30 minutes