Western Australia fuel prices, December quarter 2026 so far
Prices from 1 October to 29 October 2026Updated
Western Australia U91 average
245.2c/L+36.5 c/L on the September quarter 2026
- Perth U91
- 234.2c/L
- Rest of Western Australia U91
- 255.1c/L
- Diesel average
- 283.6c/L
Perth month by month, what makes up a litre, margins, the price cycle, excise, the other capitals, and every regional town we could rank.
This period: 1 October 2026 to 29 October 2026. This covers part of the calendar period. The change compares the available days, not two full calendar periods. Station coverage can also change.
Report highlights
Quote these with the credit: Source: FuelRadar Australia, Western Australia fuel prices, December quarter 2026 so far, fuelradar.com.au/fuel-price-reports/wa/2026-q4
Perth reported prices averaged 234.2 c/L for U91 in the December quarter 2026, up 36.1 c/L on the September quarter 2026.
Pinjarra was the cheapest town in Mandurah for U91 in the December quarter 2026 at 231.0 c/L, 3.2 c/L below Perth.
Bunbury averaged 235.3 c/L for U91 in the December quarter 2026, 1.1 c/L above Perth, and was cheaper than Perth in 1 of 7 months since our records began on 13 April 2026.
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.
Filling a 60-litre tank with U91 in Oakford (rural) rather than in Drysdale River (rural) saved $81.18 on average in the December quarter 2026.
Independent service stations in Western Australia averaged 2.4 c/L more than the major brands for U91 in the December quarter 2026, and 7.0 c/L less in Perth.
Diesel cost 36.4 c/L more than U91 in Perth in the December quarter 2026, up from 36.0 c/L in the September quarter 2026.
Oakford (rural) was Western Australia’s cheapest town for U91 in the December quarter 2026 at 222.9 c/L, 11.3 c/L below Perth.
Key points
Written from FuelRadar’s station-day averages for the period.
In the December quarter 2026, U91 averaged 234.2 c/L in Perth, up 36.1 c/L on the September quarter 2026.
In the December quarter 2026, diesel averaged 270.6 c/L in Perth, up 36.5 c/L on the September quarter 2026.
Since our records began on 13 April 2026, Perth's highest daily U91 average was 245.7 c/L on 14 October 2026 and its lowest 147.9 c/L on 30 June 2026. The high was set in the December quarter 2026.
Perth's daily U91 average went from 236.4 c/L on 1 October to 231.8 c/L on 29 October, and diesel from 274.9 c/L to 270.5 c/L.
The highest daily average in Perth was 245.7 c/L for U91 on 14 October and 274.9 c/L for diesel on 1 October.
Since 1 July 2026 in Perth: U91 up 67.7 c/L, diesel up 93.5 c/L, P95 up 68.2 c/L, P98 up 68.4 c/L and LPG up 3.2 c/L.
Perth ranked second cheapest of the 8 capital cities for U91; Adelaide was the cheapest at 233.5 c/L and Hobart the dearest at 247.4 c/L.
On 29 common dates in the December quarter 2026, Perth's U91 daily averages had a mean of 234.2 c/L, against 229.2 c/L at the Perth terminal: a gross spread of 5.0 c/L. Each date counts equally; this is not the station-day-weighted headline mean or a profit estimate.
The Perth terminal gate price averaged 229.2 c/L for unleaded and 254.9 c/L for diesel, up 37.0 c/L and up 29.5 c/L on the September quarter 2026.
Wholesale unleaded averaged 229.2 c/L at the Perth terminal, a record: the dearest wholesale quarter since AIP's series began in March quarter 2004 (the previous high was September quarter 2026 at 192.2 c/L); the cheapest of the last ten years was June quarter 2020 at 91.8 c/L.
Perth's U91 price cycle ran in the December quarter 2026: four hikes lifted the margin over the terminal gate price by 13.0 c/L on average, with peaks about 7.0 days apart.
Of the towns we ranked, Oakford (rural) had the cheapest U91 at 222.9 c/L, 11.3 c/L below Perth.
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Every fuel in Western Australia
| Fuel | Western Australia | Perth | Rest of state |
|---|---|---|---|
| Unleaded 91 | 245.2 | 234.2 | 255.1 |
| Diesel | 283.6 | 270.6 | 289.2 |
| Premium 95 | 253.5 | 250.4 | 261.2 |
| Premium 98 | 262.7 | 259.2 | 267.9 |
| LPG | 163.0 | 158.0 | 185.0 |
Cents a litre. Change is on the September quarter 2026. Difference is the rest of the state against Perth.
What makes up a litre in Perth
What makes up a litre of Unleaded 91
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 Perth. 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, Perth terminal, 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 (3 rows)
| Period | Crude oil (Brent, A$) | Wholesale: refining, shipping, terminal | Excise | GST | Retail difference | Retail price |
|---|---|---|---|---|---|---|
| December quarter 2026 | 112.2 | 42.5 | 53.7 | 21.3 | 4.5 | 234.2 |
| September quarter 2026 | 86.0 | 41.1 | 47.6 | 18.0 | 5.4 | 198.1 |
| 2025 averageWholesale side only | 67.5 | 29.0 | 51.1 | — | — | — |
Month by month, U91
| Area | Quarter |
|---|---|
| Western Australia | 245.2 |
| Perth | 234.2 |
| Rest of Western Australia | 255.1 |
| Perth South WestArea | 233.4 |
| Perth South EastArea | 233.6 |
| Perth North EastArea | 234.3 |
| Perth North WestArea | 234.8 |
| Perth InnerArea | 235.6 |
| MandurahArea | 236.2 |
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.
Month by month, diesel
Show diesel month by month
| Area | Quarter |
|---|---|
| Western Australia | 283.6 |
| Perth | 270.6 |
| Rest of Western Australia | 289.2 |
| Perth North EastArea | 267.4 |
| Perth South WestArea | 269.4 |
| Perth South EastArea | 270.1 |
| Perth North WestArea | 271.3 |
| Perth InnerArea | 279.1 |
| MandurahArea | 284.3 |
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 quarter.
Retail and wholesale on the same days, U91
Perth retail prices compared with the Perth terminal. This is not the delivered wholesale cost at individual stations.
| Period | Days used / window | Retail daily mean | TGP, same days | Gross spread |
|---|---|---|---|---|
| December quarter 20261 to 29 Oct 2026; 12 carried TGP days. Gaps may occur within this range. | 29 / 29 | 234.2 | 229.2 | 5.0 |
| September quarter 20261 Jul to 30 Sept 2026; 26 carried TGP days. Gaps may occur within this range. | 92 / 92 | 198.1 | 192.2 | 5.9 |
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.
Retail and wholesale on the same days, Diesel
Perth retail prices compared with the Perth terminal. This is not the delivered wholesale cost at individual stations.
Show Diesel comparison
| Period | Days used / window | Retail daily mean | TGP, same days | Gross spread |
|---|---|---|---|---|
| December quarter 20261 to 29 Oct 2026; 12 carried TGP days. Gaps may occur within this range. | 29 / 29 | 270.6 | 254.9 | 15.6 |
| September quarter 20261 Jul to 30 Sept 2026; 26 carried TGP days. Gaps may occur within this range. | 92 / 92 | 233.9 | 225.4 | 8.5 |
Worked out the same way as the table above.
Market trends this year
Retail, terminal gate and crude oil prices this year
Source: FuelRadar (fuelradar.com.au)
How we worked this out
Retail: FuelRadar daily averages for Perth, from 13 April 2026 when our records begin.
Terminal gate prices (dashed): AIP, Perth terminal, weekdays. Brent crude: US EIA spot price via FRED, converted at each day’s exchange rate and 158.987 litres a barrel.
Daily figures (272 rows)
| Date | U91, Perth | Diesel, Perth | Unleaded terminal gate price |
|---|---|---|---|
| 29 Oct | 231.8 | 270.5 | — |
| 28 Oct | 233.8 | 269.3 | — |
| 27 Oct | 221.5 | 268.3 | — |
| 26 Oct | 226.5 | 268.0 | — |
| 25 Oct | 227.6 | 268.1 | — |
| 24 Oct | 227.8 | 268.1 | — |
| 23 Oct | 229.4 | 267.9 | 218.5 |
| 22 Oct | 231.8 | 267.6 | 220.4 |
| 21 Oct | 235.3 | 268.0 | 221.8 |
| 20 Oct | 224.8 | 268.2 | 225.5 |
| 19 Oct | 233.0 | 268.6 | 228.3 |
| 18 Oct | 234.5 | 269.0 | — |
| 17 Oct | 235.2 | 269.2 | — |
| 16 Oct | 238.3 | 269.3 | 231.8 |
| 15 Oct | 241.9 | 269.7 | 234.3 |
| 14 Oct | 245.7 | 270.1 | 236.3 |
| 13 Oct | 234.3 | 271.0 | 238.1 |
| 12 Oct | 238.4 | 271.7 | 239.3 |
| 11 Oct | 238.5 | 271.7 | — |
| 10 Oct | 238.6 | 271.8 | — |
| 9 Oct | 239.4 | 272.0 | 238.7 |
| 8 Oct | 242.2 | 272.3 | 237.3 |
| 7 Oct | 245.0 | 272.6 | 236.6 |
| 6 Oct | 229.9 | 272.7 | 233.6 |
| 5 Oct | 232.3 | 273.7 | 232.6 |
| 4 Oct | 232.6 | 273.9 | — |
| 3 Oct | 232.6 | 273.9 | — |
| 2 Oct | 233.3 | 274.6 | 230.5 |
| 1 Oct | 236.4 | 274.9 | 229.4 |
| 30 Sept | 239.0 | 275.5 | 228.7 |
| 29 Sept | 225.9 | 276.4 | 228.3 |
| 28 Sept | 229.9 | 278.0 | 228.2 |
| 27 Sept | 230.2 | 278.2 | — |
| 26 Sept | 230.8 | 278.2 | — |
| 25 Sept | 232.8 | 280.0 | 228.4 |
| 24 Sept | 236.9 | 281.7 | 229.1 |
| 23 Sept | 239.8 | 281.4 | 229.2 |
| 22 Sept | 227.0 | 280.5 | 228.1 |
| 21 Sept | 231.2 | 278.9 | 227.1 |
| 20 Sept | 231.6 | 277.8 | — |
| 19 Sept | 232.0 | 275.5 | — |
| 18 Sept | 231.3 | 271.2 | 223.9 |
| 17 Sept | 230.6 | 266.6 | 220.8 |
| 16 Sept | 230.8 | 261.8 | 217.9 |
| 15 Sept | 211.4 | 257.2 | 213.3 |
| 14 Sept | 211.9 | 255.9 | 211.2 |
| 13 Sept | 211.7 | 255.5 | — |
| 12 Sept | 211.0 | 254.2 | — |
| 11 Sept | 212.5 | 252.0 | 209.4 |
| 10 Sept | 214.8 | 250.2 | 207.4 |
| 9 Sept | 217.0 | 249.4 | 204.9 |
| 8 Sept | 200.4 | 248.6 | 202.5 |
| 7 Sept | 203.0 | 247.9 | 200.9 |
| 6 Sept | 203.7 | 247.5 | — |
| 5 Sept | 203.5 | 246.5 | — |
| 4 Sept | 205.7 | 245.2 | 198.5 |
| 3 Sept | 208.2 | 245.1 | 196.4 |
| 2 Sept | 211.2 | 245.2 | 195.4 |
| 1 Sept | 196.0 | 245.1 | 194.7 |
| 31 Aug | 199.2 | 246.3 | 195.3 |
| 30 Aug | 200.8 | 246.5 | — |
| 29 Aug | 201.2 | 246.5 | — |
| 28 Aug | 204.6 | 246.7 | 195.5 |
| 27 Aug | 209.0 | 246.4 | 196.6 |
| 26 Aug | 212.0 | 246.0 | 196.8 |
| 25 Aug | 196.7 | 246.0 | 196.7 |
| 24 Aug | 200.0 | 245.8 | 196.4 |
| 23 Aug | 201.3 | 245.1 | — |
| 22 Aug | 201.4 | 244.6 | — |
| 21 Aug | 203.3 | 244.0 | 195.7 |
| 20 Aug | 205.3 | 242.5 | 194.9 |
| 19 Aug | 207.3 | 241.0 | 194.2 |
| 18 Aug | 191.2 | 239.4 | 193.3 |
| 17 Aug | 193.3 | 237.9 | 192.7 |
| 16 Aug | 194.0 | 237.9 | — |
| 15 Aug | 194.4 | 237.6 | — |
| 14 Aug | 197.0 | 236.1 | 191.1 |
| 13 Aug | 200.7 | 236.6 | 189.8 |
| 12 Aug | 204.5 | 237.0 | 189.7 |
| 11 Aug | 193.0 | 238.7 | 190.9 |
| 10 Aug | 198.4 | 240.5 | 192.7 |
| 9 Aug | 199.7 | 241.4 | — |
| 8 Aug | 200.9 | 241.7 | — |
| 7 Aug | 204.8 | 242.6 | 196.4 |
| 6 Aug | 208.2 | 242.5 | 198.3 |
| 5 Aug | 210.7 | 242.4 | 198.5 |
| 4 Aug | 195.7 | 239.8 | 198.1 |
| 3 Aug | 194.8 | 237.9 | 203.4 |
| 2 Aug | 192.3 | 230.8 | — |
| 1 Aug | 192.6 | 230.0 | — |
| 31 July | 193.8 | 228.6 | 183.3 |
| 30 July | 195.4 | 227.7 | 183.8 |
| 29 July | 197.2 | 226.4 | 183.4 |
| 28 July | 183.8 | 224.6 | 182.5 |
| 27 July | 185.8 | 222.0 | 180.4 |
| 26 July | 185.3 | 220.8 | — |
| 25 July | 184.7 | 219.1 | — |
| 24 July | 183.4 | 215.7 | 177.1 |
| 23 July | 184.1 | 212.2 | 174.1 |
| 22 July | 185.5 | 209.2 | 172.7 |
| 21 July | 169.5 | 206.2 | 169.7 |
| 20 July | 172.5 | 203.6 | 168.1 |
| 19 July | 172.9 | 203.0 | — |
| 18 July | 172.9 | 201.3 | — |
| 17 July | 173.7 | 197.8 | 166.0 |
| 16 July | 174.8 | 192.3 | 163.7 |
| 15 July | 175.6 | 188.1 | 161.2 |
| 14 July | 162.2 | 185.6 | 159.8 |
| 13 July | 164.8 | 184.9 | 159.8 |
| 12 July | 165.3 | 184.6 | — |
| 11 July | 165.4 | 183.2 | — |
| 10 July | 167.2 | 181.9 | 160.0 |
| 9 July | 170.4 | 181.6 | 161.4 |
| 8 July | 173.3 | 181.5 | 162.2 |
| 7 July | 163.0 | 181.7 | 163.4 |
| 6 July | 165.4 | 181.8 | 163.8 |
| 5 July | 165.9 | 184.2 | — |
| 4 July | 165.6 | 183.5 | — |
| 3 July | 164.6 | 180.3 | 163.3 |
| 2 July | 166.4 | 178.5 | 162.8 |
| 1 July | 164.1 | 177.0 | 160.1 |
| 30 June | 147.9 | 167.8 | 146.5 |
| 29 June | 149.9 | 168.2 | 146.5 |
| 28 June | 150.9 | 168.8 | — |
| 27 June | 151.5 | 169.3 | — |
| 26 June | 153.2 | 170.1 | 147.5 |
| 25 June | 156.8 | 172.5 | 148.0 |
| 24 June | 160.3 | 174.0 | 148.3 |
| 23 June | 151.4 | 176.6 | 150.3 |
| 22 June | 155.9 | 179.5 | 151.0 |
| 21 June | 157.6 | 180.9 | — |
| 20 June | 158.3 | 181.9 | — |
| 19 June | 159.9 | 184.8 | 153.0 |
| 18 June | 164.1 | 187.5 | 156.3 |
| 17 June | 168.0 | 188.9 | 158.7 |
| 16 June | 159.0 | 191.0 | 160.9 |
| 15 June | 162.6 | 192.4 | 160.7 |
| 14 June | 163.5 | 192.7 | — |
| 13 June | 163.7 | 192.6 | — |
| 12 June | 164.9 | 193.3 | 160.0 |
| 11 June | 167.9 | 193.5 | 159.3 |
| 10 June | 171.2 | 194.0 | 158.4 |
| 9 June | 159.8 | 194.2 | 158.1 |
| 8 June | 163.1 | 195.4 | 158.2 |
| 7 June | 164.3 | 196.1 | — |
| 6 June | 164.7 | 196.7 | — |
| 5 June | 166.7 | 197.7 | 158.9 |
| 4 June | 170.5 | 200.4 | 159.1 |
| 3 June | 174.5 | 201.6 | 161.2 |
| 2 June | 165.7 | 203.0 | 163.6 |
| 1 June | 169.8 | 205.7 | 165.9 |
| 31 May | 171.2 | 206.3 | — |
| 30 May | 172.1 | 206.8 | — |
| 29 May | 175.3 | 208.9 | 168.8 |
| 28 May | 180.8 | 210.8 | 171.6 |
| 27 May | 186.4 | 213.2 | 174.6 |
| 26 May | 176.3 | 214.0 | 177.7 |
| 25 May | 180.1 | 215.2 | 179.2 |
| 24 May | 181.4 | 215.7 | — |
| 23 May | 181.7 | 216.1 | — |
| 22 May | 182.2 | 216.1 | 179.7 |
| 21 May | 184.3 | 216.3 | 179.2 |
| 20 May | 187.5 | 215.9 | 177.3 |
| 19 May | 174.1 | 217.1 | 173.9 |
| 18 May | 176.2 | 218.2 | 172.1 |
| 17 May | 176.6 | 218.7 | — |
| 16 May | 176.5 | 219.4 | — |
| 15 May | 177.0 | 219.1 | 170.9 |
| 14 May | 179.7 | 219.9 | 171.2 |
| 13 May | 184.2 | 222.1 | 172.0 |
| 12 May | 173.6 | 225.6 | 174.8 |
| 11 May | 177.9 | 228.1 | 177.2 |
| 10 May | 179.7 | 229.9 | — |
| 9 May | 180.1 | 230.8 | — |
| 8 May | 180.9 | 233.2 | 180.2 |
| 7 May | 183.6 | 235.7 | 181.1 |
| 6 May | 186.6 | 237.5 | 180.6 |
| 5 May | 173.9 | 239.6 | 180.9 |
| 4 May | 176.7 | 240.5 | 181.1 |
| 3 May | 177.2 | 240.6 | — |
| 2 May | 177.2 | 240.9 | — |
| 1 May | 178.4 | 241.2 | 180.5 |
| 30 Apr | 182.7 | 241.8 | 179.7 |
| 29 Apr | 188.1 | 242.3 | 178.7 |
| 28 Apr | 175.1 | 244.2 | 177.8 |
| 27 Apr | 179.7 | 246.0 | 177.6 |
| 26 Apr | 180.1 | 246.9 | — |
| 25 Apr | 180.6 | 247.6 | — |
| 24 Apr | 182.3 | 251.4 | 176.9 |
| 23 Apr | 187.0 | 259.3 | 179.1 |
| 22 Apr | 194.0 | 269.1 | 181.2 |
| 21 Apr | 188.5 | 277.4 | 184.0 |
| 20 Apr | 194.2 | 282.7 | 185.4 |
| 19 Apr | 195.9 | 286.3 | — |
| 18 Apr | 197.2 | 288.4 | — |
| 17 Apr | 201.6 | 294.7 | 188.8 |
| 16 Apr | 207.1 | 300.6 | 190.2 |
| 15 Apr | 214.4 | 306.2 | 194.1 |
| 14 Apr | 207.3 | 311.4 | 197.2 |
| 13 Apr | 212.7 | 315.7 | 199.8 |
| 10 Apr | — | — | 203.9 |
| 9 Apr | — | — | 207.1 |
| 8 Apr | — | — | 206.3 |
| 7 Apr | — | — | 202.4 |
| 6 Apr | — | — | 202.4 |
| 3 Apr | — | — | 203.2 |
| 2 Apr | — | — | 203.9 |
| 1 Apr | — | — | 204.5 |
| 31 Mar | — | — | 229.5 |
| 30 Mar | — | — | 242.1 |
| 27 Mar | — | — | 246.8 |
| 26 Mar | — | — | 249.5 |
| 25 Mar | — | — | 248.8 |
| 24 Mar | — | — | 245.0 |
| 23 Mar | — | — | 243.0 |
| 20 Mar | — | — | 238.0 |
| 19 Mar | — | — | 235.4 |
| 18 Mar | — | — | 230.8 |
| 17 Mar | — | — | 223.6 |
| 16 Mar | — | — | 218.6 |
| 13 Mar | — | — | 210.1 |
| 12 Mar | — | — | 204.7 |
| 11 Mar | — | — | 193.7 |
| 10 Mar | — | — | 188.1 |
| 9 Mar | — | — | 175.4 |
| 6 Mar | — | — | 168.7 |
| 5 Mar | — | — | 162.4 |
| 4 Mar | — | — | 159.9 |
| 3 Mar | — | — | 157.6 |
| 2 Mar | — | — | 157.0 |
| 27 Feb | — | — | 156.0 |
| 26 Feb | — | — | 155.5 |
| 25 Feb | — | — | 154.9 |
| 24 Feb | — | — | 153.3 |
| 23 Feb | — | — | 152.2 |
| 20 Feb | — | — | 152.0 |
| 19 Feb | — | — | 152.6 |
| 18 Feb | — | — | 153.1 |
| 17 Feb | — | — | 153.6 |
| 16 Feb | — | — | 153.9 |
| 13 Feb | — | — | 153.7 |
| 12 Feb | — | — | 153.1 |
| 11 Feb | — | — | 152.5 |
| 10 Feb | — | — | 152.1 |
| 9 Feb | — | — | 152.0 |
| 6 Feb | — | — | 152.0 |
| 5 Feb | — | — | 152.2 |
| 4 Feb | — | — | 152.4 |
| 3 Feb | — | — | 153.0 |
| 2 Feb | — | — | 153.2 |
| 30 Jan | — | — | 152.4 |
| 29 Jan | — | — | 152.9 |
| 28 Jan | — | — | 153.2 |
| 27 Jan | — | — | 153.3 |
| 26 Jan | — | — | 153.3 |
| 23 Jan | — | — | 153.4 |
| 22 Jan | — | — | 153.5 |
| 21 Jan | — | — | 153.6 |
| 20 Jan | — | — | 153.5 |
| 19 Jan | — | — | 153.6 |
| 16 Jan | — | — | 153.1 |
| 15 Jan | — | — | 152.5 |
| 14 Jan | — | — | 152.4 |
| 13 Jan | — | — | 152.3 |
| 12 Jan | — | — | 152.4 |
| 9 Jan | — | — | 152.8 |
| 8 Jan | — | — | 153.4 |
| 7 Jan | — | — | 153.8 |
| 6 Jan | — | — | 154.2 |
| 5 Jan | — | — | 154.4 |
| 2 Jan | — | — | 154.6 |
| 1 Jan | — | — | 154.6 |
Perth against the rest of Western Australia
Source: FuelRadar (fuelradar.com.au)
Daily averages (29 rows)
| Date | Perth (c/L) | Rest of Western Australia (c/L) |
|---|---|---|
| 29 Oct | 231.8 | 250.9 |
| 28 Oct | 233.8 | 255.1 |
| 27 Oct | 221.5 | 254.9 |
| 26 Oct | 226.5 | 255.4 |
| 25 Oct | 227.6 | 255.5 |
| 24 Oct | 227.8 | 255.6 |
| 23 Oct | 229.4 | 255.6 |
| 22 Oct | 231.8 | 256.1 |
| 21 Oct | 235.3 | 256.2 |
| 20 Oct | 224.8 | 256.1 |
| 19 Oct | 233.0 | 256.9 |
| 18 Oct | 234.5 | 257.1 |
| 17 Oct | 235.2 | 257.1 |
| 16 Oct | 238.3 | 257.6 |
| 15 Oct | 241.9 | 257.7 |
| 14 Oct | 245.7 | 257.3 |
| 13 Oct | 234.3 | 256.6 |
| 12 Oct | 238.4 | 256.6 |
| 11 Oct | 238.5 | 256.6 |
| 10 Oct | 238.6 | 256.3 |
| 9 Oct | 239.4 | 255.7 |
| 8 Oct | 242.2 | 254.7 |
| 7 Oct | 245.0 | 254.0 |
| 6 Oct | 229.9 | 252.7 |
| 5 Oct | 232.3 | 252.1 |
| 4 Oct | 232.6 | 252.1 |
| 3 Oct | 232.6 | 251.9 |
| 2 Oct | 233.3 | 251.1 |
| 1 Oct | 236.4 | 251.0 |
The price cycle in Perth
| From | c/L | To | c/L | Rise |
|---|---|---|---|---|
| 6 October | 229.9 | 7 October | 245.0 | +15.1 |
| 13 October | 234.3 | 14 October | 245.7 | +11.4 |
| 20 October | 224.8 | 21 October | 235.3 | +10.5 |
| 27 October | 221.5 | 28 October | 233.8 | +12.3 |
Perth’s daily U91 average less the Perth terminal gate price is the indicative margin, not profit. A hike requires this margin and the retail average each to rise by at least 8.0 c/L within 5 days. Where station-rise counts are available, daily rises of at least 5.0 c/L, summed over the rise, must reach 25% of the station count at the peak; a station can count on more than one day. Rises within 3 days of an excise change are excluded. The margin must then ease by at least half within 21 days; if follow-up is too short, a counted hike can have unconfirmed easing. A regular cycle requires at least two detected hikes. No detected hike does not establish why retail prices changed.
Fuel excise
| Petrol and diesel excise | Rate (c/L, before GST) | Change |
|---|---|---|
| In force on 1 October 2026 | 53.7 | — |
| Average over the days of 1 October to 29 October 2026 | 53.70 | — |
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
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
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.
Perth by area
| Area (ABS SA4) | U91 | Diesel |
|---|---|---|
| Perth South West | 233.4 | 269.4 |
| Perth South East | 233.6 | 270.1 |
| Perth North East | 234.3 | 267.4 |
| Perth North West | 234.8 | 271.3 |
| Perth Inner | 235.6 | 279.1 |
| Mandurah | 236.2 | 284.3 |
Cents a litre, cheapest U91 first. Areas are the ABS Statistical Areas Level 4 (SA4) inside Perth’s urban area, named in plain words (“Brisbane - East” is Brisbane East). An area counts its stations that reported on at least a quarter of the days; its average, station count and cheapest station all come from them. Period-average margins are omitted here: comparable daily inputs and weights are not retained for these rows.
Regional towns cheaper than Perth, U91
| Town | Quarter | Against Perth |
|---|---|---|
| Oakford (rural) | 222.9 | −11.3 |
| Pinjarra | 231.0 | −3.2 |
| Gidgegannup (rural) | 231.2 | −3.0 |
| Anketell | 232.5 | −1.7 |
| Bullsbrook | 232.5 | −1.7 |
| Meadow (rural) | 233.4 | −0.8 |
Cents a litre, cheapest first. Perth’s U91 average was 234.2 c/L. A town’s margin is against Perth’s terminal gate price. Period-average margins are omitted here: comparable daily inputs and weights are not retained for these rows.
Regional towns ranked, U91
| Town | Average | Against Perth |
|---|---|---|
| Oakford (rural) | 222.9 | −11.3 |
| Pinjarra | 231.0 | −3.2 |
| Gidgegannup (rural) | 231.2 | −3.0 |
| Anketell | 232.5 | −1.7 |
| Bullsbrook | 232.5 | −1.7 |
| Meadow (rural) | 233.4 | −0.8 |
| Busselton | 235.0 | +0.8 |
| West Pinjarra (rural) | 235.1 | +0.9 |
| Bunbury | 235.3 | +1.1 |
| Karragullen (rural) | 235.5 | +1.3 |
Cents a litre, cheapest first. A town is ranked with at least two stations reporting through the period and a price on most days; 195 smaller places were left out. The cheapest station’s figure is its own average over the period.
Regional towns ranked, diesel
| Town | Average | Against Perth |
|---|---|---|
| Oakford (rural) | 251.5 | −19.1 |
| Muchea (rural) | 267.0 | −3.6 |
| Anketell | 267.8 | −2.8 |
| Bunbury | 268.8 | −1.8 |
| Gidgegannup (rural) | 268.9 | −1.7 |
| Pinjarra | 269.6 | −1.0 |
| Manjimup | 269.7 | −0.9 |
| Albany | 269.9 | −0.7 |
| Williams | 271.2 | +0.6 |
| Cunderdin | 271.4 | +0.8 |
Cents a litre, cheapest first. A town is ranked with at least two stations reporting through the period and a price on most days; 192 smaller places were left out. The cheapest station’s figure is its own average over the period.
Other fuels: cheapest and dearest towns
| Fuel | Cheapest town (c/L) | Dearest town (c/L) |
|---|---|---|
| Premium 95 | Oakford (rural) 238.3 | Broome 293.9 |
| Premium 98 | Meadow (rural) 247.0 | Broome 299.9 |
Fewer stations sell these fuels, so fewer towns are ranked.
Regional centres, U91
| Centre | Quarter | Against Perth |
|---|---|---|
| Busselton | 235.0 | +0.8 |
| Bunbury | 235.3 | +1.1 |
| Albany | 236.9 | +2.7 |
| Yanchep | 237.0 | +2.8 |
| Geraldton | 238.1 | +3.9 |
| Kalgoorlie–Boulder | 240.2 | +6.0 |
| Esperance | 246.6 | +12.4 |
| Karratha | 251.9 | +17.7 |
| Port Hedland | 270.7 | +36.5 |
| Broome | 278.3 | +44.1 |
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 Perth.
Against Perth, month by month, U91
| Area | Quarter | Against Perth | Year so far | Months cheaper |
|---|---|---|---|---|
| Perth South West | 233.4 | −0.8 | −0.2 | 6 of 7 |
| Perth South East | 233.6 | −0.6 | −0.9 | 7 of 7 |
| Perth North East | 234.3 | +0.1 | −0.2 | 5 of 7 |
| Perth North West | 234.8 | +0.6 | +0.4 | 0 of 7 |
| Perth Inner | 235.6 | +1.4 | +1.2 | 0 of 7 |
| Mandurah | 236.2 | +2.0 | +2.4 | 0 of 7 |
| BunburyRegional centre | 235.3 | +1.1 | +2.4 | 1 of 7 |
Cents a litre; negative is cheaper than Perth. The areas are Perth’s ABS SA4 areas and the regional centres of 50,000 people or more.
Cheapest and dearest in each area, U91
| Area | Cheapest suburb or town |
|---|---|
| MandurahPerth area | Pinjarra227.3 c/L |
| Perth InnerPerth area | Mount Lawley230.9 c/L |
| Perth North EastPerth area | Bassendean229.4 c/L |
| Perth North WestPerth area | Wanneroo228.8 c/L |
| Perth South EastPerth area | Oakford222.9 c/L |
| Perth South WestPerth area | Henderson224.0 c/L |
| Bunbury | Broadwater229.1 c/L |
| Outback Western Australia (North) | Kununurra249.7 c/L |
| Outback Western Australia (South) | Meadow233.4 c/L |
| Western Australia – Wheat Belt | Orana233.6 c/L |
A suburb or town is the ABS locality a station sits in, ranked within its SA4 by the same rule as the towns.
The year so far: since our records began on 13 April 2026
| Fuel | Western Australia | Perth | Rest of Western Australia |
|---|---|---|---|
| U91 | 206.3 | 194.5 | 217.9 |
| Diesel | 249.0 | 233.9 | 256.3 |
5 of the 83 towns we ranked averaged less than Perth for U91.
Cheapest towns since our records began on 13 April 2026, U91
| Town | Average | Against Perth |
|---|---|---|
| Oakford (rural) | 181.4 | −13.1 |
| Anketell | 191.7 | −2.8 |
| Pinjarra | 191.7 | −2.8 |
| Bullsbrook | 191.8 | −2.7 |
| Gidgegannup (rural) | 192.7 | −1.8 |
| Busselton | 195.7 | +1.2 |
| Albany | 196.5 | +2.0 |
| Bunbury | 196.9 | +2.4 |
| West Pinjarra (rural) | 198.1 | +3.6 |
| Northam | 198.9 | +4.4 |
Dearest towns since our records began on 13 April 2026, U91
| Town | Average | Against Perth |
|---|---|---|
| Drysdale River (rural) | 347.6 | +153.1 |
| Warmun | 322.5 | +128.0 |
| Djarindjin–Lombadina | 285.7 | +91.2 |
| Onslow | 255.9 | +61.4 |
| Halls Creek | 251.5 | +57.0 |
| Exmouth | 240.1 | +45.6 |
| Derby | 238.3 | +43.8 |
| Broome | 236.0 | +41.5 |
| Fitzroy Crossing | 234.6 | +40.1 |
| Port Hedland | 232.1 | +37.6 |
The day of the week to buy U91
| Place | Cheapest / dearest, quarter |
|---|---|
| Perth | — |
| BunburyRegional centre | — |
| AlbanyRegional centre | — |
| BusseltonRegional centre | — |
| GeraldtonRegional centre | — |
| Kalgoorlie–BoulderRegional centre | — |
| BroomeRegional centre | — |
| EsperanceRegional centre | — |
| KarrathaRegional centre | — |
| Port HedlandRegional centre | — |
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
| Comparison | Cheaper | Dearer | A tank |
|---|---|---|---|
| Cheapest and dearest town | Oakford (rural)222.9 c/L | Drysdale River (rural)358.2 c/L | $81.18 |
| Cheapest and dearest regional centre | Busselton235.0 c/L | Broome278.3 c/L | $25.98 |
| Cheapest town and Perth | Oakford (rural)222.9 c/L | Perth234.2 c/L | $6.78 |
| Cheapest station and the state average | Billabong Roadhouse195.0 c/L | Western Australia245.2 c/L | $30.12 |
Towns that moved most on the September quarter 2026, U91
| Town | Quarter | Change |
|---|---|---|
| Bremer BayRose | 266.7 | +51.9 |
| NarroginRose | 245.7 | +48.4 |
| Hyden (rural)Rose | 254.4 | +45.7 |
| DerbyRose | 284.3 | +44.5 |
| NorthamptonRose | 255.1 | +44.0 |
Independents and the major brands, U91
| Where | Major brands | Independents | Difference |
|---|---|---|---|
| Western Australia | 244.5 | 246.9 | +2.4 |
| Perth | 235.6 | 228.6 | −7.0 |
| BurkIndependent | — | 226.3 | — |
| AtlasIndependent | — | 230.7 | — |
| VibeIndependent | — | 230.8 | — |
| MetroIndependent | — | 232.3 | — |
| UnitedMajor brand | 233.4 | — | — |
| 7-ElevenMajor brand | 236.2 | — | — |
| EagleIndependent | — | 237.0 | — |
| CaltexMajor brand | 238.0 | — | — |
| PetrogasIndependent | — | 239.7 | — |
| ChoiceIndependent | — | 240.6 | — |
| AstronIndependent | — | 241.1 | — |
| Reddy ExpressMajor brand | 241.3 | — | — |
| LibertyIndependent | — | 241.8 | — |
| AmpolMajor brand | 243.3 | — | — |
| ShellMajor brand | 245.7 | — | — |
| BPMajor brand | 254.2 | — | — |
| IndependentIndependent | — | 271.1 | — |
| MogasIndependent | — | 334.3 | — |
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
| Station | Place | Average |
|---|---|---|
| Billabong RoadhouseIndependent | Meadow | 195.0 |
| Caltex Henderson OPTCaltex | Henderson | 215.9 |
| Costco CasuarinaCostco | Casuarina | 220.7 |
| Costco Perth AirportCostco | Perth Airport | 220.7 |
| Burk OakfordBurk | Oakford | 222.9 |
| Vibe Oakford TruckstopVibe | Oakford | 223.0 |
| Burk CanningtonBurk | Beckenham | 223.2 |
| Burk Mount LawleyBurk | Mount Lawley | 223.6 |
| Burk AlkimosBurk | Alkimos | 223.7 |
| Burk BassendeanBurk | Bassendean | 223.8 |
Dearest service stations, U91
| Station | Place | Average |
|---|---|---|
| Kunawarritji StoreIndependent | Gibson Desert North | 450.0 |
| Yakanarra Community StoreIndependent | St George Ranges | 410.0 |
| Kalumburu MissionBP | Drysdale River | 375.0 |
| Kalumburu MissionBP | Kalumburu | 375.0 |
| Wingellina StoreBP | Wingellina | 374.0 |
| Warburton RoadhouseBP | Warburton | 374.0 |
| Warakurna RoadhouseBP | Ngaanyatjarra-Giles | 374.0 |
| Wanarn StoreBP | — | 374.0 |
| Tjukurla StoreBP | Tjukurla | 374.0 |
| Tjukayirla RoadhouseBP | Lake Wells | 374.0 |
Diesel against U91
| Where | Diesel less U91 |
|---|---|
| Perth | 36.4 |
| Western Australia | 38.4 |
| Rest of Western Australia | 34.1 |
| Djarindjin–LombadinaNarrowest gap | -1.5 |
| Drysdale River (rural)Narrowest gap | 11.4 |
| DerbyNarrowest gap | 11.5 |
| BroomeNarrowest gap | 11.8 |
| Halls CreekNarrowest gap | 12.2 |
| OnslowWidest gap | 60.0 |
| WilunaWidest gap | 57.8 |
| MeekatharraWidest gap | 46.7 |
| Meadow (rural)Widest gap | 44.6 |
| BullsbrookWidest gap | 44.6 |
Crude oil and the dollar
| Period | Brent, US$ a barrel | US$ per A$ | Brent, A$ c/L |
|---|---|---|---|
| December quarter 2026 | 124.8 | 0.6974 | 112.2 |
| September quarter 2026 | 96.3 | 0.7062 | 86.0 |
| June quarter 2026 | 102.6 | 0.7101 | 91.1 |
| March quarter 2026 | 80.7 | 0.6956 | 73.3 |
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.
Outlook
An estimate, not a guarantee
Our outlook describes the days after the period ended, as at 30 October 2026. Prices can move quickly; check the live price at the station before you fill.
Our forecast for Perth
| Fuel | Average now | A week ahead |
|---|---|---|
| U91 | 232.0 | 235.3 |
| Diesel | 273.8 | 275.0 |
FuelRadar’s published forecast for Perth, the same one the app shows. An estimate, not a guarantee.
Wholesale and crude oil now
| Measure | Latest |
|---|---|
| National terminal gate price, unleaded | 222.0 c/L |
| National terminal gate price, diesel | 263.1 c/L |
| Brent crude | US$110.90 a barrel |
| Brent crude forecast, October 2026 | US$111.00 a barrel |
| Brent crude forecast, November 2026 | US$104.00 a barrel |
| Brent crude forecast, December 2026 | US$99.00 a barrel |
Wholesale and crude prices as at 23 October 2026. Crude oil forecast: U.S. Energy Information Administration, Short-Term Energy Outlook, October 2026.
Data quality, method and sources
| Coverage | Figure |
|---|---|
| Service stations listed | 982 |
| Stations with an eligible input price | 977 |
| Station–fuel–days counted (published fuels) | 83,006 |
| Days covered | 1 October 2026 to 29 October 2026 |
| Station-price records used here begin | 13 April 2026 |
| Towns ranked for U91195 left out: too few steady stations | 83 |
Coverage by fuel and period
| Fuel and period | Distinct stations | Station–fuel–days | Calendar days |
|---|---|---|---|
| U91, December quarter 20261 to 29 Oct 2026 | 938 | 26,986 | 29 |
| U91, September quarter 20261 Jul to 30 Sept 2026 | 932 | 84,988 | 92 |
| DSL, December quarter 20261 to 29 Oct 2026 | 664 | 18,970 | 29 |
| DSL, September quarter 20261 Jul to 30 Sept 2026 | 662 | 59,570 | 92 |
| P95, December quarter 20261 to 29 Oct 2026 | 525 | 15,152 | 29 |
| P95, September quarter 20261 Jul to 30 Sept 2026 | 526 | 47,779 | 92 |
| P98, December quarter 20261 to 29 Oct 2026 | 723 | 20,842 | 29 |
| P98, September quarter 20261 Jul to 30 Sept 2026 | 726 | 66,083 | 92 |
| LPG, December quarter 20261 to 29 Oct 2026 | 38 | 1,056 | 29 |
| LPG, September quarter 20261 Jul to 30 Sept 2026 | 37 | 3,346 | 92 |
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.
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
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.
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.
Coverage and carry
Perth uses its ABS urban area. 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.
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.
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.
Towns and areas
Perth is its ABS urban area, split into ABS SA4 areas. Outside it, a town is the locality a station sits in; a station in another large city counts in that city as one place.
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.
Coverage
977 stations had an eligible input price in the period, including carried prices. The figures cover the days to 29 October 2026; the calendar period is incomplete.
Wholesale, margins and the cost of a litre
The terminal gate price is AIP’s weekday price at the Perth terminal; 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.
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.
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
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.
Saved edition
Saved 30 October 2026 at 5:31 am, method version 2, PDF publication unavailable. The fingerprint identifies the saved data, not editorial changes. The PDF publication number does not supply a retained revision history.
Data fingerprint
0f6402bff38dd2ae0edb8e77690caa17574e14224f021f9daee0c9ca577f3273
For media
In short
Perth reported prices averaged 234.2 c/L for U91 in the December quarter 2026, up 36.1 c/L on the September quarter 2026. Pinjarra was the cheapest town in Mandurah for U91 in the December quarter 2026 at 231.0 c/L, 3.2 c/L below Perth.
Credit line
Source: FuelRadar Australia, Western Australia fuel prices, December quarter 2026 so far, fuelradar.com.au/fuel-price-reports/wa/2026-q4
Media enquiries
Email [email protected]. Figures, graphics and the PDF are free to use in news coverage with the credit line.