Australian fuel prices, September 2026

Prices from 1 September to 30 September 2026Updated

Australia U91 average

225.5c/L

+18.9 c/L on August 2026

Capital cities U91
221.4c/L
Rest of Australia U91
228.3c/L
Diesel average
272.4c/L

The capital cities and every state and territory, what makes up a litre, wholesale and crude oil prices, excise, and the cheapest and dearest towns.

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Report highlights

Quote these with the credit: Source: FuelRadar Australia, Australian fuel prices, September 2026, fuelradar.com.au/fuel-price-reports/australia/2026-09

  1. Across Australia, U91 averaged 225.5 c/L in September 2026, up 18.9 c/L on August 2026.

  2. Adelaide was the cheapest capital city for U91 in September 2026 at 218.8 c/L and Canberra the dearest at 230.4 c/L.

  3. Oakford (rural) (WA) was the cheapest town in Australia for U91 in September 2026 at 208.2 c/L.

  4. Moe–Newborough (VIC) was the cheapest regional centre for U91 in September 2026 at 215.5 c/L.

  5. Filling a 60-litre tank with U91 in Moe–Newborough (VIC) rather than in Broome (WA) saved $25.20 on average in September 2026.

  6. Across Australia, independent service stations averaged 0.7 c/L less than the major brands for U91 in September 2026.

  7. Since our records began on 13 April 2026, Tuesday has been the cheapest day to buy U91 in Perth and Wednesday the dearest, 12.6 c/L apart on average: $7.56 on a 60-litre tank.

  8. Across Australia, diesel cost 46.9 c/L more than U91 in September 2026.

Key points

Written from FuelRadar’s figures for this period and checked against them.

  1. Across Australia, reported wholesale unleaded prices averaged 216.8 c/L in September 2026, which was the dearest of the 121 months in ten years since AIP's series began in January 2004 (nominal prices).

  2. Reported wholesale diesel prices averaged 256.3 c/L in September 2026, up 17.9 c/L on August 2026.

  3. Adelaide was the cheapest of the 8 capital cities for U91 in September 2026 at an average of 218.8 c/L.

  4. Canberra was the dearest of the 8 capital cities for U91 in September 2026, averaging 230.4 c/L.

  5. Perth was the cheapest of the 8 capital cities for diesel in September 2026 with a reported average of 262.9 c/L.

  6. Oakford (rural) in WA was the cheapest town in Australia for U91 in September 2026 at 208.2 c/L.

  7. Moe–Newborough in VIC was the cheapest regional centre for U91 in September 2026, averaging 215.5 c/L.

  8. Across 125 ranked regional centres, 43 were cheaper than their state capital average for U91.

  9. Since our records began on 13 April 2026, the national average for U91 across Australia has been 194.8 c/L.

  10. In September 2026, E10 reported prices averaged 220.3 c/L across Australia, an increase of 20.5 c/L compared with August 2026.

  11. Across Australia, diesel cost 46.9 c/L more than U91 in September 2026.

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Every fuel across Australia

Across Australia, U91 averaged 225.5 c/L in September 2026, up 18.9 c/L on August 2026. Across Australia, diesel averaged 272.4 c/L in September 2026, up 21.0 c/L on August 2026. The other fuels averaged E10 220.3 c/L, P95 240.0 c/L, P98 248.3 c/L and LPG 108.2 c/L. The capital cities averaged 221.4 c/L for U91 and the rest of the country 228.3 c/L, so reported prices in regional areas averaged 6.9 c/L more than the capitals. The capital cities averaged 268.7 c/L for diesel and the rest of the country 273.8 c/L, so reported prices in regional areas averaged 5.1 c/L more than the capitals.

Unleaded 91+6.9 restDiesel+5.1 restE10+1.4 restPremium 95+3.1 restPremium 98+2.6 restLPG+9.8 rest

Source: FuelRadar (fuelradar.com.au)

Cents a litre. Change is on August 2026. Difference is the rest of the country against the capitals.

Table view
Average price by fuel, September 2026
FuelAustraliaCapitalsRest of Australia
Unleaded 91225.5221.4228.3
Diesel272.4268.7273.8
E10220.3219.6221.0
Premium 95240.0238.4241.5
Premium 98248.3246.9249.5
LPG108.2104.5114.3

What makes up a litre in the capital cities

Of the 221.4 c/L U91 average in the capital cities, crude oil was 101.4 c/L, wholesale 42.0 c/L, excise 53.7 c/L, GST 20.1 c/L and the retail difference 4.2 c/L. Of the 268.7 c/L diesel average in the capital cities, crude oil was 101.4 c/L, wholesale 77.9 c/L, excise 53.7 c/L, GST 24.4 c/L and the retail difference 11.3 c/L. Premium 95 has no terminal gate price of its own, so its breakdown uses the unleaded price and its premium sits in the retail difference. Our retail records begin on 13 April 2026, so earlier periods show the wholesale side only.

What makes up a litre of Unleaded 91

Fuel
Loading chart…

Source: FuelRadar (fuelradar.com.au)

How we worked this out

A benchmark illustration using differently weighted period averages, not a matched purchase basket or measured retailer costs. See the same-date retail/TGP comparison separately.

Wholesale is the terminal gate price without GST and excise, less crude oil. GST is one eleventh of the retail price. The retail difference is what is left: the retailer’s costs and margin, without its GST. Bands are rounded so they add up to the retail price.

Retail: FuelRadar station-day averages for the capital cities. Our retail records begin on 13 April 2026, so a period before then has the wholesale side only, and “dearest” and “cheapest” compare the periods since our records began.

Terminal gate price: AIP, national average, carried over weekends. Crude oil: Brent spot (US EIA, via FRED) in Australian dollars, at 158.987 litres a barrel. Excise: ATO, averaged over the period’s days.

Every period (4 rows)
What makes up a litre of Unleaded 91, c/L
PeriodCrude oil (Brent, A$)Wholesale: refining, shipping, terminalExciseGSTRetail differenceRetail price
September 2026Dearest since our records began101.442.053.720.14.2221.4
August 202680.744.052.618.36.0201.6
2025 averageWholesale side only67.529.751.1———
Cheapest: June 202676.645.320.614.85.5162.8
Download

Month by month, U91

U91 average by month, September 2026
AreaMonth
Australia225.5
Capital cities221.4
Rest of Australia228.3

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 month.

Month by month, diesel

Show diesel month by month
Diesel average by month, September 2026
AreaMonth
Australia272.4
Capital cities268.7
Rest of Australia273.8

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 month.

Market trends this year

The national average terminal gate price averaged 216.8 c/L for unleaded and 256.3 c/L for diesel, up 21.8 c/L and up 17.9 c/L on August 2026. Brent crude averaged US$114.2 a barrel, or 101.4 c/L in Australian dollars, with the Australian dollar at an average of 71.15 US cents.

Retail, terminal gate and crude oil prices this year

Chart
Loading chart…

Source: FuelRadar (fuelradar.com.au)

How we worked this out

Retail: FuelRadar daily averages for the capital cities, from 13 April 2026 when our records begin.

Terminal gate prices (dashed): AIP, national average, weekdays. Brent crude: US EIA spot price via FRED, converted at each day’s exchange rate and 158.987 litres a barrel.

Daily figures (195 rows)
Retail, terminal gate and crude oil prices this year (c/L), 1 Jan to 30 Sept
DateUnleaded terminal gate priceDiesel terminal gate priceBrent crude, A$ c/L
30 Sept231.0264.2104.9
29 Sept230.6265.5102.7
28 Sept230.9266.7107.5
25 Sept231.2269.0103.8
24 Sept231.8272.1108.4
23 Sept231.9275.3105.0
22 Sept230.5276.1101.8
21 Sept229.2275.1102.6
18 Sept226.1270.4105.8
17 Sept222.9264.8107.1
16 Sept220.1259.8112.7
15 Sept215.4252.9115.4
14 Sept213.3250.2106.8
11 Sept211.3249.5103.5
10 Sept209.0248.1106.1
9 Sept206.4246.195.4
8 Sept203.8243.392.5
7 Sept202.2241.3—
4 Sept199.9238.189.2
3 Sept197.8235.887.8
2 Sept196.7235.485.6
1 Sept196.0236.784.3
31 Aug196.5239.2—
28 Aug196.6240.578.8
27 Aug197.5243.678.8
26 Aug197.7244.477.0
25 Aug197.5244.177.5
24 Aug197.1243.781.5
21 Aug196.4242.984.9
20 Aug195.6241.583.0
19 Aug194.8239.981.6
18 Aug193.9237.984.5
17 Aug193.3236.581.7
14 Aug191.8234.081.6
13 Aug190.7231.882.0
12 Aug190.6230.982.3
11 Aug191.9233.083.1
10 Aug193.7234.782.6
7 Aug197.2238.678.0
6 Aug199.0241.280.2
5 Aug199.3242.777.3
4 Aug199.0241.377.3
3 Aug204.2246.279.9
31 July184.1224.486.8
30 July184.4224.582.3
29 July184.0223.983.5
28 July183.1222.577.0
27 July181.0219.682.6
24 July177.9216.090.2
23 July174.8212.595.0
22 July173.4211.284.6
21 July170.4207.184.2
20 July168.8203.978.1
17 July166.7200.876.5
16 July164.5195.472.9
15 July162.1188.874.7
14 July160.7185.575.5
13 July160.7184.574.0
10 July161.0183.067.2
9 July162.4182.267.4
8 July163.3181.669.6
7 July164.3181.165.1
6 July164.7180.563.0
3 July164.2178.9—
2 July163.7177.162.2
1 July162.6175.063.1
30 June147.3160.064.1
29 June147.4159.565.4
26 June148.3160.063.9
25 June148.8160.567.0
24 June149.1161.765.8
23 June151.3165.868.7
22 June152.0167.268.7
19 June154.1170.9—
18 June157.4177.071.1
17 June159.7181.671.4
16 June161.8187.271.5
15 June161.7189.074.9
12 June161.0190.779.1
11 June160.4192.183.5
10 June159.4192.085.7
9 June159.1191.684.3
8 June159.2191.086.9
5 June160.1189.586.7
4 June160.4187.787.2
3 June162.5188.289.6
2 June164.9190.286.2
1 June167.2193.186.4
29 May170.4197.081.2
28 May173.1201.383.9
27 May176.0205.285.6
26 May179.3209.790.2
25 May180.5210.6—
22 May181.0210.994.3
21 May180.4210.393.3
20 May178.5208.695.8
19 May175.2206.0101.5
18 May173.5204.5102.5
15 May172.5203.1100.2
14 May172.8202.996.6
13 May173.5204.195.5
12 May176.0207.797.0
11 May178.5211.091.9
8 May181.4217.889.9
7 May182.2221.788.4
6 May181.8224.290.2
5 May182.5227.2100.1
4 May182.6227.7—
1 May182.3227.4103.0
30 Apr181.5226.8108.8
29 Apr180.5225.9109.5
28 Apr179.6224.5103.0
27 Apr179.6224.799.6
24 Apr179.2225.498.3
23 Apr181.3230.199.5
22 Apr183.3239.099.6
21 Apr186.0249.693.2
20 Apr187.3255.590.6
17 Apr190.4263.586.3
16 Apr192.1272.4102.3
15 Apr195.7285.6100.9
14 Apr198.8296.8104.7
13 Apr201.4304.7109.8
10 Apr205.3318.8105.8
9 Apr208.4325.9105.7
8 Apr207.4320.8108.8
7 Apr203.5301.6125.2
6 Apr203.5301.4—
3 Apr204.3299.4—
2 Apr205.4292.7116.1
1 Apr206.1289.1108.3
31 Mar230.9308.5116.2
30 Mar242.6310.9111.8
27 Mar246.9310.6110.9
26 Mar249.4309.2103.2
25 Mar248.5303.298.6
24 Mar244.3295.097.9
23 Mar242.5290.793.3
20 Mar237.2282.4105.9
19 Mar235.0277.999.3
18 Mar230.4271.7104.9
17 Mar224.2266.296.0
16 Mar218.6259.990.1
13 Mar210.2249.192.7
12 Mar204.7243.390.8
11 Mar193.6227.780.0
10 Mar188.0220.279.0
9 Mar175.2199.084.2
6 Mar168.7185.685.8
5 Mar162.5173.779.5
4 Mar160.0169.372.5
3 Mar157.7166.074.6
2 Mar157.1165.768.7
27 Feb156.2165.463.0
26 Feb155.6165.063.6
25 Feb154.7164.462.5
24 Feb153.2163.163.4
23 Feb152.2162.064.0
20 Feb152.1161.664.6
19 Feb152.7161.965.3
18 Feb153.1162.163.9
17 Feb153.8162.862.1
16 Feb154.1163.2—
13 Feb153.9163.262.3
12 Feb153.3163.261.9
11 Feb152.8163.263.1
10 Feb152.6163.163.2
9 Feb152.5162.963.2
6 Feb152.5162.663.2
5 Feb152.6162.563.0
4 Feb152.9162.364.0
3 Feb153.6162.062.7
2 Feb153.7162.061.2
30 Jan153.0161.065.0
29 Jan153.4161.263.7
28 Jan153.7161.363.8
27 Jan153.9160.963.3
26 Jan153.9160.961.4
23 Jan154.0160.562.3
22 Jan154.0160.260.2
21 Jan154.2159.762.0
20 Jan153.9158.663.1
19 Jan154.0158.3—
16 Jan153.5157.263.0
15 Jan152.9156.262.1
14 Jan152.7156.064.9
13 Jan152.6155.863.6
12 Jan152.7156.061.2
9 Jan153.1156.461.3
8 Jan153.7156.859.5
7 Jan154.1157.057.1
6 Jan154.5157.158.0
5 Jan154.7157.259.0
2 Jan154.9157.458.3
1 Jan155.0157.4—
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Fuel excise

Fuel excise stayed at 53.7 c/L for petrol and diesel through September 2026.

Fuel excise, September 2026
Petrol and diesel exciseRate (c/L, before GST)Change
In force on 1 September 202653.7—
Average over the days of 1 September to 30 September 202653.70—

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

The capital cities, U91

Among the capital cities, Adelaide was the cheapest for U91 at 218.8 c/L and Canberra the dearest at 230.4 c/L. Among the capital cities, Perth was the cheapest for diesel at 262.9 c/L and Canberra the dearest at 282.6 c/L.

Every capital city by average U91 price, September 2026
CapitalMonth
AdelaideCheapest capital218.8
Perth220.1
Melbourne220.3
Brisbane222.3
Sydney222.6
Hobart227.3
Darwin229.7
CanberraDearest capital230.4

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.

The capital cities, diesel

Show the capital cities, diesel
Every capital city by average diesel price, September 2026
CapitalMonth
PerthCheapest capital262.9
Sydney266.3
Adelaide269.2
Melbourne269.6
Brisbane271.8
Hobart272.5
Darwin276.3
CanberraDearest capital282.6

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.

States and territories, U91

Victoria had the lowest U91 average at 222.0 c/L and Northern Territory the highest at 254.4 c/L. Victoria had the lowest diesel average at 269.9 c/L and Northern Territory the highest at 297.6 c/L.

Each marker shows the figure for that state; the same figures appear in the list beside the map.New South WalesVictoriaQueenslandSouth AustraliaWestern AustraliaTasmaniaNorthern TerritoryAustralian Capital Territory
Compared with the other reporting states:LowerHigher

Source: FuelRadar (fuelradar.com.au)

Cents a litre, cheapest first. Each state links to its own report.

Table view
Average U91 price by state and territory, September 2026
State or territoryAverageCapitalRest of state
VictoriaCapital: Melbourne222.0220.3223.8
South AustraliaCapital: Adelaide224.3218.8228.8
New South WalesCapital: Sydney224.9222.6226.2
QueenslandCapital: Brisbane224.9222.3226.2
Western AustraliaCapital: Perth229.0220.1237.1
TasmaniaCapital: Hobart229.6227.3230.3
Australian Capital TerritoryCapital: Canberra230.4230.4—
Northern TerritoryCapital: Darwin254.4229.7266.6

States and territories, diesel

Each marker shows the figure for that state; the same figures appear in the list beside the map.New South WalesVictoriaQueenslandSouth AustraliaWestern AustraliaTasmaniaNorthern TerritoryAustralian Capital Territory
Compared with the other reporting states:LowerMiddleHigher

Source: FuelRadar (fuelradar.com.au)

Cents a litre, cheapest first. Each state links to its own report.

Table view
Average diesel price by state and territory, September 2026
State or territoryAverageCapitalRest of state
VictoriaCapital: Melbourne269.9269.6270.0
New South WalesCapital: Sydney270.5266.3271.6
QueenslandCapital: Brisbane272.0271.8272.1
Western AustraliaCapital: Perth273.0262.9277.5
TasmaniaCapital: Hobart273.3272.5273.5
South AustraliaCapital: Adelaide273.9269.2274.9
Australian Capital TerritoryCapital: Canberra282.6282.6—
Northern TerritoryCapital: Darwin297.6276.3306.6

Cheapest towns in Australia, U91

The cheapest town we ranked for U91 was Oakford (rural) (WA) at 208.2 c/L, and the dearest Drysdale River (rural) (WA) at 354.7 c/L. The cheapest town we ranked for diesel was Oakford (rural) (WA) at 248.1 c/L, and the dearest Maningrida (NT) at 393.7 c/L.

  1. Oakford (rural), WA2 stations208.2c/L
  2. Appin, NSW3 stations210.5c/L
  3. Purga (rural), QLD2 stations211.4c/L
  4. Yarraman, QLD2 stations211.9c/L
  5. Bodalla, NSW2 stations213.3c/L
  6. Gidgegannup (rural), WA2 stations213.5c/L
  7. Pinjarra, WA5 stations213.9c/L
  8. Nanango, QLD3 stations214.2c/L
  9. Roma (rural), QLD2 stations214.2c/L
  10. Lakes Entrance, VIC3 stations214.3c/L

Source: FuelRadar (fuelradar.com.au)

Table view
Cheapest towns in Australia, U91
TownAverage
Oakford (rural), WA208.2
Appin, NSW210.5
Purga (rural), QLD211.4
Yarraman, QLD211.9
Bodalla, NSW213.3
Gidgegannup (rural), WA213.5
Pinjarra, WA213.9
Nanango, QLD214.2
Roma (rural), QLD214.2
Lakes Entrance, VIC214.3

Dearest towns in Australia, U91

  1. Drysdale River (rural), WA2 stations354.7c/L
  2. Warmun, WA2 stations336.1c/L
  3. Nullarbor (rural), SA2 stations309.0c/L
  4. Ghan (rural), NT2 stations306.2c/L
  5. Currie, TAS2 stations297.9c/L
  6. Ivanhoe, NSW2 stations294.9c/L
  7. Djarindjin–Lombadina, WA2 stations292.2c/L
  8. Sandover (rural), NT2 stations279.8c/L
  9. Weipa, QLD2 stations273.5c/L
  10. Onslow, WA2 stations270.8c/L

Source: FuelRadar (fuelradar.com.au)

Table view
Dearest towns in Australia, U91
TownAverage
Drysdale River (rural), WA354.7
Warmun, WA336.1
Nullarbor (rural), SA309.0
Ghan (rural), NT306.2
Currie, TAS297.9
Ivanhoe, NSW294.9
Djarindjin–Lombadina, WA292.2
Sandover (rural), NT279.8
Weipa, QLD273.5
Onslow, WA270.8

Cheapest towns in Australia, diesel

  1. Oakford (rural), WA2 stations248.1c/L
  2. Williamtown (rural), NSW2 stations252.0c/L
  3. Kemps Creek (rural), NSW3 stations255.5c/L
  4. Pinjarra, WA5 stations255.5c/L
  5. Yarraman, QLD2 stations255.8c/L
  6. Nanango, QLD2 stations256.0c/L
  7. Harden–Murrumburrah, NSW2 stations256.2c/L
  8. Lakes Entrance, VIC2 stations256.2c/L
  9. Cessnock, NSW8 stations256.4c/L
  10. Albany, WA12 stations258.0c/L

Source: FuelRadar (fuelradar.com.au)

Table view
Cheapest towns in Australia, diesel
TownAverage
Oakford (rural), WA248.1
Williamtown (rural), NSW252.0
Kemps Creek (rural), NSW255.5
Pinjarra, WA255.5
Yarraman, QLD255.8
Nanango, QLD256.0
Harden–Murrumburrah, NSW256.2
Lakes Entrance, VIC256.2
Cessnock, NSW256.4
Albany, WA258.0

Dearest towns in Australia, diesel

  1. Maningrida, NT2 stations393.7c/L
  2. Warmun, WA2 stations386.7c/L
  3. Drysdale River (rural), WA2 stations362.2c/L
  4. Nullarbor (rural), SA2 stations344.6c/L
  5. Ghan (rural), NT2 stations343.4c/L
  6. Petermann (rural), NT2 stations343.0c/L
  7. Ivanhoe, NSW2 stations339.9c/L
  8. Anatye (rural), NT2 stations336.1c/L
  9. Onslow, WA2 stations330.8c/L
  10. Tallangatta, VIC2 stations316.3c/L

Source: FuelRadar (fuelradar.com.au)

Table view
Dearest towns in Australia, diesel
TownAverage
Maningrida, NT393.7
Warmun, WA386.7
Drysdale River (rural), WA362.2
Nullarbor (rural), SA344.6
Ghan (rural), NT343.4
Petermann (rural), NT343.0
Ivanhoe, NSW339.9
Anatye (rural), NT336.1
Onslow, WA330.8
Tallangatta, VIC316.3

Regional centres, U91

Moe–Newborough (VIC) was the cheapest of the 125 regional centres we ranked for U91 at 215.5 c/L, and Broome (WA) the dearest at 257.5 c/L.

Regional centres ranked by their U91 average, September 2026
CentreMonthAgainst Capital cities
Moe–Newborough (VIC)215.5−4.8
Muswellbrook (NSW)216.4−6.2
Albany (WA)216.9−3.2
Cessnock (NSW)216.9−5.7
Geelong (VIC)217.3−3.0
Maitland (NSW)217.3−5.3
Ocean Grove – Barwon Heads (VIC)217.3−3.0
Leopold (VIC)217.4−2.9
Torquay – Jan Juc (VIC)217.5−2.8
Victor Harbor (SA)217.7−1.1

Cents a litre, cheapest first. A regional centre is a large regional city we map on its own, or an ABS urban centre of 10,000 people or more (2021 Census) outside the capitals.

The year so far, U91: since our records began on 13 April 2026

Since our records began on 13 April 2026, U91 has averaged 194.8 c/L across Australia and 189.0 c/L in the capital cities; Oakford (rural) (WA) has been the cheapest town at 174.3 c/L.

U91 averages since our records began on 13 April 2026
State or territoryAverageCapital
Victoria191.6189.0
New South Wales193.0188.8
South Australia193.1185.4
Queensland194.0190.5
Australian Capital Territory195.1195.1
Western Australia199.3187.6
Tasmania199.4193.7
Northern Territory233.9197.8

Cheapest towns since our records began on 13 April 2026, U91

Cheapest towns since our records began on 13 April 2026, U91
TownAverage
Oakford (rural) (WA)174.3
Yarraman (QLD)178.9
Williamtown (rural) (NSW)181.6
Boggabilla (NSW)183.4
Appin (NSW)183.7
Coolongolook (rural) (NSW)183.8
Wyee (NSW)184.2
Armidale (rural) (NSW)184.4
Purga (rural) (QLD)184.4
Anketell (WA)184.8

Dearest towns since our records began on 13 April 2026, U91

Dearest towns since our records began on 13 April 2026, U91
TownAverage
Maningrida (NT)365.1
Drysdale River (rural) (WA)345.2
Anatye (rural) (NT)329.4
Warmun (WA)316.0
Petermann (rural) (NT)305.7
Anmatjere (rural) (NT)291.2
Davenport (rural) (NT)285.8
Ghan (rural) (NT)285.7
Nullarbor (rural) (SA)283.1
Djarindjin–Lombadina (WA)280.3

The day of the week to buy U91

Since our records began on 13 April 2026, Friday has been the cheapest day to buy U91 in Canberra and Thursday the dearest, 0.4 c/L apart on average. Since our records began on 13 April 2026, Tuesday has been the cheapest day to buy U91 in Sydney and Thursday the dearest, 0.3 c/L apart on average. Since our records began on 13 April 2026, Monday has been the cheapest day to buy U91 in Darwin and Saturday the dearest, 0.7 c/L apart on average. Since our records began on 13 April 2026, Tuesday has been the cheapest day to buy U91 in Brisbane and Thursday the dearest, 0.2 c/L apart on average. Since our records began on 13 April 2026, Wednesday has been the cheapest day to buy U91 in Adelaide and Saturday the dearest, 0.8 c/L apart on average. Since our records began on 13 April 2026, Sunday has been the cheapest day to buy U91 in Hobart and Thursday the dearest, 0.4 c/L apart on average. Since our records began on 13 April 2026, Tuesday has been the cheapest day to buy U91 in Melbourne and Sunday the dearest, 1.0 c/L apart on average. Since our records began on 13 April 2026, Tuesday has been the cheapest day to buy U91 in Perth and Wednesday the dearest, 12.6 c/L apart on average.

The cheapest and dearest day of the week, and how far apart they were on average
PlaceCheapest / dearest, month
Canberra (ACT)—
Sydney (NSW)—
Darwin (NT)—
Brisbane (QLD)—
Adelaide (SA)—
Hobart (TAS)—
Melbourne (VIC)—
Perth (WA)—

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.

What a 60-litre tank of U91 saved

Filling a 60-litre tank with U91 in Oakford (rural) (WA) rather than Drysdale River (rural) (WA) saved $87.90 on average in September 2026. At AMPM Highway in Mount Melville, the cheapest station we ranked, it cost $29.76 less than at the national average.

Differences of the published averages, September 2026
ComparisonCheaperDearerA tank
Cheapest and dearest townOakford (rural) (WA)208.2 c/LDrysdale River (rural) (WA)354.7 c/L$87.90
Cheapest and dearest regional centreMoe–Newborough (VIC)215.5 c/LBroome (WA)257.5 c/L$25.20
Cheapest station and the national averageAMPM Highway (WA)175.9 c/LAustralia225.5 c/L$29.76

Towns that moved most on August 2026, U91

Williamtown (rural) (NSW) rose most on August 2026, up 32.7 c/L to 218.3 c/L, while Mount Beauty – Tawonga (VIC) fell most, down 25.6 c/L to 235.8 c/L.

Towns that moved most on August 2026, U91
TownMonthChange
Williamtown (rural) (NSW)Rose218.3+32.7
Currie (TAS)Rose297.9+32.6
Maffra (VIC)Rose250.4+32.1
Atherton (QLD)Rose245.4+29.1
Wellington (NSW)Rose236.1+27.2
Mount Beauty – Tawonga (VIC)Fell235.8−25.6

Independents and the major brands, U91

Independent service stations averaged 225.0 c/L for U91 and the major brands 225.7 c/L, 0.7 c/L less at the independents.

Station-day averages, September 2026
WhereMajor brandsIndependentsDifference
Australia225.7225.0−0.7

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.

Cheapest service stations, U91

AMPM Highway in Mount Melville (WA) was the cheapest service station we ranked for U91 at 175.9 c/L, and Kunawarritji Store in Gibson Desert North (WA) the dearest at 450.0 c/L.

7,125 stations with a price on half the days or more, September 2026
StationPlaceAverage
AMPM HighwayFuelTechMount Melville (WA)175.9
METRO HEDDON GRETAMetroHeddon Greta (NSW)179.9
Independent Alyangula Township Service StationIndependentAlyangula (NT)194.1
Billabong RoadhouseIndependentMeadow (WA)195.0
7-Eleven Noble Park7-ElevenNoble Park (VIC)195.9
Ampol Smeaton GrangeAmpolSmeaton Grange (NSW)197.4
Reflections Holiday ParksIndependentCopeton (NSW)199.3
Tanwar PetroleumIndependentLewisham (NSW)199.4
Ampol Seven Mile Beach StoreAmpolSeven Mile Beach (TAS)200.9
7-Eleven Mornington Tyabb7-ElevenMornington (VIC)202.4

Dearest service stations, U91

7,125 stations with a price on half the days or more, September 2026
StationPlaceAverage
Kunawarritji StoreIndependentGibson Desert North (WA)450.0
Yakanarra Community StoreIndependentSt George Ranges (WA)410.0
Ramingining XpressPumaRamingining (NT)402.5
Independent Elcho FuelIndependentGaliwinku (NT)380.0
Kalumburu MissionBPDrysdale River (WA)375.0
Jameson StoreBPnull (WA)374.0
Tjukayirla RoadhouseBPLake Wells (WA)374.0
Tjukurla StoreBPTjukurla (WA)374.0
Wanarn StoreBPnull (WA)374.0
Warakurna RoadhouseBPNgaanyatjarra-Giles (WA)374.0

Diesel against U91

Diesel cost 46.9 c/L more than U91 across Australia, against 44.8 c/L on August 2026.

How much more diesel cost than U91, September 2026
WhereDiesel less U91
Australia46.9
Perth42.8
Sydney43.7
Hobart45.2
Darwin46.6
Melbourne49.3
Brisbane49.5
Adelaide50.4
Canberra52.2

Crude oil and the dollar

Brent crude averaged US$114.2 a barrel in September 2026, against US$85.4 in June 2026.

Brent crude oil and the Australian dollar, September 2026 and the periods before
PeriodBrent, US$ a barrelUS$ per A$Brent, A$ c/L
September 2026114.20.7115101.4
August 202691.10.710380.7
July 202683.80.697176.2
June 202685.40.702576.6

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.

Data quality, method and sources

We counted 7,905 in the summed state station counts with eligible prices, over 772,124 station–fuel–days across published fuels. Our price records begin on 13 April 2026.

What the figures cover, September 2026
CoverageFigure
Listed stations, sum of states8,077
Sum of state counts with eligible prices7,905
Station–fuel–days counted (published fuels)772,124
Days covered1 September 2026 to 30 September 2026
Station-price records used here begin13 April 2026

Coverage by fuel and period

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.
Fuel and periodState station count sumStation–fuel–daysCalendar days
U91, September 20261 to 30 Sept 20267,183211,75030
U91, August 20261 to 31 Aug 2026—221,44831
E10, September 20261 to 30 Sept 20262,91786,62130
E10, August 20261 to 31 Aug 2026—90,21331
DSL, September 20261 to 30 Sept 20264,676137,18230
DSL, August 20261 to 31 Aug 2026—143,31731
P95, September 20261 to 30 Sept 20264,406129,97130
P95, August 20261 to 31 Aug 2026—135,56631
P98, September 20261 to 30 Sept 20266,144182,08430
P98, August 20261 to 31 Aug 2026—189,30231
LPG, September 20261 to 30 Sept 202688924,51630
LPG, August 20261 to 31 Aug 2026—25,68731

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. Sum of the included state counts; cross-state station identity is not retained. Each state uses its own saved date window, not a common-day national sample. Calendar days describe the window, not new observations. A dash means the saved edition does not supply that count.

Included state date windows

Included state date windows
StateCurrent windowComparison window
NT2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
SA2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
WA2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
ACT2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
NSW2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
QLD2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
TAS2026-09-01 to 2026-09-302026-08-01 to 2026-08-31
VIC2026-09-01 to 2026-09-302026-08-01 to 2026-08-31

State totals use their own saved windows; national totals have not been recomputed over one common set of days.

About this edition

How we worked out these figures, and our sources · What this edition can establish

How we worked out these figures, and our sources

  1. What the average measures

    Reported station-day prices, not purchases. Each station counts once per day with an eligible price; stations with more covered days contribute more. The mean is not weighted by litres sold and does not measure what the average driver paid.

  2. Which history this uses

    This report's station-price records begin on 13 April 2026. The separately published daily city-average series can begin earlier and use different boundaries and carry rules. Compare figures within the same series.

  3. Coverage and carry

    National figures combine the station-days in the included state reports. Missing states are excluded, not estimated. An eligible price can be carried forward for up to 30 days. A covered day can therefore contain an earlier reported price. Station-days are observations, not distinct stations. The report does not quantify the share of carried prices or all excluded reports.

  4. Wholesale spreads

    Retail less terminal gate price is a gross indicative spread, not profit. It also covers transport, site and operating costs. Brent is a crude-oil benchmark, not a refined petrol or diesel price.

  5. How we average

    Each day, every service station counts once at its latest price as of the end of that day. A price is carried forward for at most 30 days, and the average is taken over every station-day in the period, so a station that reported all period counts more than one that reported for a week.

  6. Towns and areas

    Each state report ranks its regional towns and its capital’s council areas; this report brings their figures together. Capital cities are their ABS urban areas.

  7. Which prices count

    Prices held for checking, prices a station reported as unavailable and implausible prices are left out. A station’s next report ends its previous price.

  8. Coverage

    7,905 stations had an eligible input price in the period, including carried prices.

  9. Wholesale, margins and the cost of a litre

    The terminal gate price is AIP’s weekday price at the national average; AIP publishes the capital-city terminals only. Weekday prices are carried over weekends, and a period’s price is the mean of its calendar days. The margin is the retail average less the terminal gate price. In the cost of a litre, crude oil is Brent in Australian dollars, wholesale is the terminal gate price without GST and excise less crude oil, excise is the ATO rate averaged over the days, GST is one eleventh of the retail price, and the retail difference is the rest.

  10. Sources

    FuelRadar: station-day averages, areas and the price cycle, from the prices service stations report to their state’s price service. Australian Institute of Petroleum: terminal gate prices. US Energy Information Administration, via FRED: Brent crude. Federal Reserve, via FRED: the exchange rate. Australian Taxation Office: excise rates. Australian Bureau of Statistics: the urban area, SA4 and locality boundaries.

  11. About these prices

    These are averages over the whole period, not today’s prices. Check the station price and its update time before you fill.

What this edition can establish

  1. Not recorded

    Carried retail price counts and excluded raw report counts were not retained; their shares are unavailable. The number of stations selling each fuel and litres sold are not recorded, so fuel-market and sales coverage percentages are unavailable.

  2. Saved edition

    Saved 31 October 2026 at 5:30 am, method version 2, PDF publication 7. The fingerprint identifies the saved data, not editorial changes. The PDF publication number does not supply a retained revision history.

  3. Data fingerprint

    0990e33bc35fefceff3bfc539f57facc561fb827ee0f9905eb51734ebd674cf3

For media

  1. In short

    Across Australia, U91 averaged 225.5 c/L in September 2026, up 18.9 c/L on August 2026. Adelaide was the cheapest capital city for U91 in September 2026 at 218.8 c/L and Canberra the dearest at 230.4 c/L.

  2. Credit line

    Source: FuelRadar Australia, Australian fuel prices, September 2026, fuelradar.com.au/fuel-price-reports/australia/2026-09

  3. Media enquiries

    Email [email protected]. Figures, graphics and the PDF are free to use in news coverage with the credit line.