Cheapest fuel prices, trends and insights across Australia
Cheapest U91 Fuel Prices around St Marys, SA Today
As of 13 May 2026, the cheapest U91 around St Marys, SA is 171.90 c/L at U-Go St Marys. Average across 27 stations within 5km of St Marys centre is 176.50 c/L – down 15.6 cents over the past two weeks.
Prices from Australian Capital Territory Government, updated every 15 minutes.
U91 stations around St Marys
27 stations selling U91, sorted by price.
Fuel prices by type
7 fuel types available around St Marys.
Frequently asked questions
Where is the cheapest U91 around St Marys?
The cheapest U91 around St Marys, SA is 171.90 cents per litre at U-Go St Marys, 1129-1131 South Rd & Southern Av.
When is the best day to buy fuel in St Marys?
Based on the past 4 weeks, Mondays tend to have the cheapest U91 prices around St Marys, averaging 180.70 c/L. Tuesdays tend to be the most expensive at 188.50 c/L – a difference of 7.8 cents.
How many petrol stations are around St Marys?
FuelTrack tracks prices at 27 stations selling U91 around St Marys, SA. The area has 7 fuel types available, including LPG, E10, U91, U95.
What petrol brands are around St Marys?
There are 5 fuel brands around St Marys including U-Go, Independent, United, Ampol, Liberty. Compare prices across all brands to find the cheapest fuel.
Nearby suburbs
Suburbs near St Marys with U91 prices, sorted by distance.
Prices from Australian Capital Territory Government. View all Australian Capital Territory suburbs. Compare fuel prices across Australia.