Two industry sources report the government has been scoping the potential value of port and power station sales as it attempts to repair a revenue black hole caused by the global financial crisis and the loss of $5.6 billion in GST revenue.

Speculation is already rife that the government could "discontinue" the 8.3 cents-a-litre fuel subsidy to Queensland motorists.

Mr Fraser said removing the fuel price subsidy would save the Government $600 million a year, or $2.4 billion over the four-year Budget cycle, but such a move has been criticised by road user groups and the Opposition.

In 2008, the government raised more than $1 billion when it sold the Cairns and Mackay airports and the its share in Brisbane Airport.

In 2007, it generated $680 million for the new Children's Hospital at South Brisbane when it sold the Golden Casket Lottery to Tattersalls.

The cost of that hospital was then estimated at $700 million and has now blown out to $1.1 billion.

This morning Mr Fraser not surprisingly declined to comment specifically on the sale of government assets as he prepared the final stages of the Queensland Budget to be delivered on June 16.

"I am not ruling anything in or out," Mr Fraser said.

"Asset sales are assessed on a case by case basis and the proceeds from such sales are always re-invested in important capital works projects."

The reference to capital works projects is considered relevant as Premier Anna Bligh has consistently said her first priority is to protect her infrastructure program.

In March 2009, the Queensland had 15 Government Owned Corporations (GOCs) with a total value of $49 billion, including Powerlink, Sunwater, Tarong Energy, plus ports in Brisbane, Cairns, Gladstone, Mackay and Townsville.

Opposition Leader John-Paul Langbroek said GOCs - like government departments - should be scrutinised for cost savings, but did not suggest they be sold.

"Obviously if there is waste and duplication as the Premier has acknowledged by changing the whole structure of government departments, GOCs would come under that sort of review as well in terms of how we eliminate that waste and duplication," he said.

The Federal Government did not invest any money in Queensland ports in last week's Federal Budget.

The State Government received $503 million for the sale of Cairns Airport, $208 million from Mackay Airport and $289.4 million from its share in the Brisbane Airport Corporation.