GENERALLY boasting some of the cheapest fuel in Queensland, Warwick motorists normally have little reason to complain when filling up - until last month.

A report from Queensland's peak motoring body RACQ found Warwick, and many other regional areas in south-east Queensland, had been ripped off at the bowsers during April.

Despite fuel prices dropping by four cents a litre from March to April, to 143.4 cents a litre, in Warwick prices were still 2.3 cents a litre above Brisbane petrol prices.

RACQ spokesman Joe Fitzgerald placed the blame on fuel retailers who refused to pass on the benefit of lower oil prices to those outside the south-east.

"Fuel retailers took advantage of falling oil prices in April to fatten their wallets at the expense of regional motorists," Mr Fitzgerald said.

"Motorists outside of the south-east have every reason to feel aggrieved at this kind of opportunistic treatment.

"Motorists in Toowoomba and Warwick are usually among the cheapest places to buy fuel but even they weren't immune to increased retail margins last month."

Rose City residents were not the worst affected though.

Drivers in some regional areas paying as much as 15 cents a litre more, on average, than Brisbane motorists.

Toowoomba motorists were slugged on average 145.4 cents a litre last month while Goondiwindi forked out 150.9 cents a litre on average.

But if the prices hanging from Warwick Petrol stations yesterday are anything to go by, this month Rose City motorists could be facing some relief.

The United, on Wallace St, proved to be the cheapest with unleaded priced at 135.7 cents a litre.

The Matilda on the northern entrance into Warwick was closely matched selling unleaded for 135.9 cents a litre.

The Caltex, on Wallace St, had the highest price in town, charging 139.9 cents a litre for unleaded yesterday afternoon.