Australian Capital Territory fuel prices, September quarter 2026

1. Canberra reported prices averaged 206.5 c/L for U91 in the September quarter 2026, up 25.2 c/L on the partial June quarter 2026.

2. In the September quarter 2026, the day of the week made little difference to U91 prices in Canberra: the cheapest and dearest days were 0.8 c/L apart on average.

3. Independent service stations in Australian Capital Territory averaged 7.3 c/L less than the major brands for U91 in the September quarter 2026, and 7.3 c/L less in Canberra.

4. Diesel cost 41.7 c/L more than U91 in Canberra in the September quarter 2026, down from 62.9 c/L in the partial June quarter 2026.

5. Canberra was the dearest of the 8 capital cities for U91 in the September quarter 2026 at 206.5 c/L.

1. Canberra was the dearest of the 8 capital cities for U91 in the September quarter 2026.

2. Prices followed wholesale costs and excise rather than a regular price cycle.

3. Unleaded wholesale prices at the Sydney terminal averaged 194 c/L, the highest on record since AIP's series began in March quarter 2004 (nominal prices).

4. Diesel wholesale prices also hit a record high of 231.7 c/L since AIP's series began in March quarter 2004 (nominal prices).

5. The federal government restored the full fuel excise on 3 August 2026, pushing the rate up 17.1 c/L to 53.7 c/L.

6. Canberra drivers saw U91 prices hit a record high of 247.1 c/L on 23 September 2026 since our records began on 13 April 2026.

7. Since the 2026–27 financial year began on 1 July 2026, U91 pump prices climbed 79.1 c/L to end the quarter at 244.8 c/L.

8. Costco Canberra Airport (Members Only) at Canberra Airport averaged 192.2 c/L for U91, saving drivers 14.3 c/L against the state average.

9. Filling a 60-litre tank at this station saved you 8.58 dollars a tank compared to the state average.

10. The day of the week made little difference at the bowser, with Sunday averaging just 0.8 c/L less than Saturday.

11. Diesel cost 41.7 c/L more than U91 in Canberra, down from a premium of 62.9 c/L in the June quarter 2026.

12. Drivers paying for premium petrol saw P95 average 19.1 c/L more than U91, while P98 cost an extra 26.4 c/L.

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Cents a litre. Each month is the station-day average of the days it has in the period. An area’s months count the same stations as its quarter.

Cents a litre. Each month is the station-day average of the days it has in the period. An area’s months count the same stations as its quarter.

Each common date counts once. Retail is the mean of the saved daily capital averages, not the station-day-weighted headline mean. TGP uses the same dates and carries the last published value for at most six subsequent calendar days. Retail prices can already include carried station prices. Means and spreads are rounded separately. The gross spread is not profit or a causal explanation. Retail carry limit: 30 days. Unmatched dates are excluded; common days are not a station or sales coverage percentage.

Worked out the same way as the table above.

Excise is charged on fuel as it leaves the terminal, so it is already in the terminal gate price; GST is then charged on top.

Source: ATO: Excise duty rates for fuel and petroleum products

Cents a litre, cheapest first. Each capital is its ABS urban area, worked out exactly as in its own state’s report. The margin is against its own terminal’s gate price (Canberra uses Sydney’s). Period-average margins are omitted here: comparable daily inputs and weights are not retained for these rows.

Cents a litre, cheapest first. Each capital is its ABS urban area, worked out exactly as in its own state’s report. The margin is against its own terminal’s gate price (Canberra uses Sydney’s). Period-average margins are omitted here: comparable daily inputs and weights are not retained for these rows.

Cents a litre; negative is cheaper than Canberra. The areas are Canberra’s ABS SA4 areas and the regional centres of 50,000 people or more.

A suburb or town is the ABS locality a station sits in, ranked within its SA4 by the same rule as the towns.

Each day’s average against the seven days centred on it, averaged by weekday, so a steady rise or fall does not favour one end of the week. A place needs four of each weekday with prices from five stations or more; a month usually shows the year so far only.

The major brands are 7-Eleven, Ampol, BP, Caltex, EG, Mobil, On The Run (OTR), Reddy Express, Shell and United; every other brand, and a station without one, is independent. Stations with a price on a quarter of the days; a brand is listed with five or more.

Brent: Europe Brent spot price FOB (US Energy Information Administration). Exchange rate: the Federal Reserve’s noon buying rate in New York. Both via FRED, Federal Reserve Bank of St. Louis, averaged over the days each is published; the Australian-dollar figures use each day’s rate. A litre is a barrel divided by 158.987. We use these free benchmarks because the refined-petrol and diesel benchmarks Australian wholesale prices follow (Singapore) are sold by subscription.

The listed count is the inventory used at build time, not a historical census of every operating station. One station selling two fuels on one day contributes two station–fuel–days. Fuel-specific counts must not be added to obtain a distinct station total. Distinct stations contributing eligible prices for this fuel and period. Calendar days describe the window, not new observations.