How 61 Tankers Are Fixing Australia's Diesel Crisis

There's a quiet logistical scramble happening on the high seas right now, and most Aussie motorists have no idea it's the only reason they can still fill the ute this weekend.

Sixty one fuel tankers are currently en route to Australian ports, hauling cargoes of petrol and diesel from suppliers in the United States, South Korea and Malaysia. Energy Minister Chris Bowen confirmed the manifest earlier this month, calling it the result of months of work to diversify away from our usual import lanes. The numbers tell the story. Australia's petrol reserves have crept back up to roughly 46 days of cover, a meaningful step up from where we were sitting a couple of months ago. Diesel, though, is still the problem child.

Here's what's really going on. At the peak of this whole mess, hundreds of servos across the country were running dry on diesel. Right now we're down to about 120 outlets reporting outages, which works out at roughly 1.5 percent of Australia's fuel retail network. That's a long way from a national crisis, but it's also nowhere near normal.

How we ended up importing 80 percent of our fuel

To put this in perspective, you have to go back to the early 2010s. Australia used to have eight refineries. Shell's Clyde, Caltex's Kurnell, BP's Bulwer Island and Kwinana, ExxonMobil's Altona. One by one they shut their gates, mostly because the giant Asian refineries in Singapore and South Korea could turn out a litre of refined fuel cheaper than ours could.

By 2021 we were down to two. Ampol's Lytton refinery in Brisbane, and Viva Energy's Geelong refinery in Victoria. Between them they now produce roughly 12 billion litres of petrol, diesel and jet fuel a year. Sounds like a lot until you realise Australia burns through about 60 billion litres of liquid fuel annually. We import the other 80 percent.

That's the structural vulnerability that's been exposed this year. When global shipping lanes get squeezed, when the Middle East flares up, when a Singaporean refinery decides to take three weeks of maintenance, Australia feels it at the bowser. We don't have the buffer.

What's actually in the new shipments

Industry sources tell me the diversification push has been more aggressive than the public announcements suggest. The US cargoes are coming out of Gulf Coast refineries that historically shipped almost everything to Latin America. Malaysia's Petronas has reportedly taken on supply contracts that previously sat with Singaporean traders. South Korean refiners, already among our biggest suppliers, have stretched their output to cover the gaps.

Four additional diesel cargoes worth around 200 million litres are due in late May and early June. For context, Australia consumes roughly 70 million litres of diesel a day. So those cargoes represent about three days of national demand, dropped in over a fortnight. Not a flood, but enough to take the pressure off rural depots that have been stretched thin.

The trucking industry has been carrying the worst of this. Owner drivers in particular have been wearing higher per litre prices on top of cash flow strain, and Northern Territory hauliers running the long Stuart Highway routes have copped the steepest pain. The National Farmers' Federation made the case in early May that if diesel disruption stretched through the winter cropping window, food prices could move up by as much as 50 percent. That's the kind of number that gets a treasurer's attention pretty quickly.

The 2030 lifeline nobody noticed

Behind the immediate scramble, something more significant happened in March that flew almost completely under the radar. The Fuel Security Services Payment, the scheme that effectively subsidises Lytton and Geelong to keep refining in Australia, was extended out to 30 June 2030. It was meant to expire in 2027.

The trigger mechanism was also adjusted so the payment kicks in more reliably when refining margins go thin. Cap stays at 1.8 cents per litre of refined output, but the conditions have been loosened. The federal budget also earmarked $10 million in 2026 to 27 for feasibility studies on expanding domestic refining capacity, which is the first serious signal in years that Canberra might be considering actual capacity growth rather than just propping up what's left.

Compared to other countries, Australia's refining position is genuinely unusual. New Zealand has just one refinery left (Marsden Point shut its refining operations in 2022). The UK still has six. The US has 132. Even South Korea, a country less than a tenth our size geographically, runs five major export refineries that ship to us. We're an energy rich country that refines almost nothing.

What this means at the bowser

The practical upshot for your wallet is mixed. The immediate diesel pressure is easing, which means the price gap between diesel and unleaded that opened up earlier this year should narrow over the next month or so. Industry contacts reckon retail diesel could come back to within 8 to 12 cents of unleaded by mid June, which is closer to the historical norm.

The 32 cents per litre excise reduction is still running until 30 June, which is the bigger story for most motorists. After that, your fill up jumps regardless of what the tankers are doing. If you're driving a diesel ute or a fleet vehicle and you've been hunting bargains during the shortage, the savings calculator is worth a look to see what the post excise pricing actually does to your weekly spend.

Victoria and Queensland drivers tend to feel refinery related price movements first because that's where Lytton and Geelong are based. Melbourne and Brisbane wholesale benchmarks tend to lead the rest of the country by 24 to 48 hours when refinery economics shift. Sydney and Perth usually catch up within the week.

The bigger picture

The fascinating backstory is that Australia's fuel security has been a quiet political concern for at least two decades, but it took a genuine supply shock to drag it into the daylight. Going back a few decades, Australia was effectively self sufficient in refined fuel. Today we're at the end of one of the longest supply chains in the developed world.

What happens between now and 2030 will probably define what Australian fuel prices look like for the next generation. Two refineries with extended subsidies and a $10 million feasibility study isn't a transformation. But it's the first time in fifteen years the policy direction has been pointing at building capacity rather than just managing decline.

Keep an eye on this space. The tankers will get us through this winter. The structural fix is going to take a lot longer.

Practical takeaways