The federal government is being urged to lock in a domestic transport energy policy, with the NRMA warning Australia would only have a week's worth of fuel if tankers stopped arriving tomorrow.
NRMA Motoring and Services director Graham Blight wants legislators to work with industry stakeholders to help secure Australia's transport energy future using the government's National Energy Security Assessment.
"In 2000 we had seven refineries in Australia, we imported 60 per cent of our fuel usage and we had about 30 days' supply," Mr Blight told reporters in Sydney on Monday.
"In 2015 we will have four refineries, we will import in excess of 90 per cent of our fuel and we'll have at best, 22 days of fuel.
"That 22 days of fuel translates to a lot more actual usage when you get it out there, more like seven or eight days maybe."
Mr Blight said a disruption to global trade routes - such as natural disaster or unrest - would leave Australia exposed.
"One of those things has only to cause a disruption and we will find ourselves in a position where we are short of oil," he said.
Just five per cent of Australia's heavy transport was trains, while 95 per cent comprised trucks on the road, he said.
That scenario could lead to empty petrol pumps in three days, while supermarket shelves and hospital supplies would be empty in seven days.
"Add to that the social disruption of people not being able to get to work, on the assumption there is work," Mr Blight said.
"That's a pretty scary scenario to us."
The NRMA on Monday released it's report Australia's Liquid Fuel Security: Part 2.
The paper's author - retired Air Vice Marshall John Blackburn - called on the government to come up with a policy on refineries.
He also called for more fuel diversity in the transport sector, suggesting a move away from diesel fuel.
"Let's have a bit of diversity - a bit of gas, a bit of Liquefied Natural Gas, Compressed Natural Gas," he said.
"Let's look at bio fuels. They will never be more than 10 per cent of the market, but we want alternatives."