Average petrol prices have jumped 21 cents per litre to 151.4 today.
The increase was thought to be linked to drone attack on an oil plant in Saudi Arabia but Fuelwatch WA manager Ben Derecki said that is not the case.
He told The West Australian Perth's petrol prices were linked to the Singapore benchmark.
Some Coles Express sites are selling unleaded petrol for 167.9 cpl today, a price hike of 36 cpl.
The cheapest petrol in the Mandurah area can be found at Coles Express Halls Head and Singleton for 132.9.
Further south, Placid Ark Roadhouse in Coolup is selling unleaded fuel for 133.9 and Coles Express in Waikiki has the cheapest fuel in the Rockingham area at 132.9.
To find the cheapest fuel prices near you head to FuelWatch.
Early voting for Secret Harbour by-election begins Monday
Welfare concerns for missing Swedish national last seen in Warnbro
Wanted man last seen in Golden Bay
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit
Welfare concerns for boy last seen at Port Kennedy skate park
Rubbish truck catches fire in Baldivis
Driver injured in bus crash in Rockingham