Tasmania Petrol and diesel prices Climb Again and the Island's Supply Problem Isn't Going Away
Every litre of fuel burned in Tasmania arrived by sea. That single fact explains more about what's happening at Tasmanian bowsers this week than any amount of hand wringing about global oil markets.
Diesel across Tasmania has climbed nearly 9 cents overnight, pushing the state average to 311.8 cents a litre. unleaded petrol isn't far behind, with prices jumping a similar amount to sit around 258.9 cents at many servos. For an island state that depends on Bass Strait shipping for every drop of fuel, these aren't random fluctuations. They're the predictable result of a supply chain that has always been fragile and is getting more expensive to maintain.
What Most People Don't Realise About Tassie Fuel
Australia's mainland states have the luxury of pipeline networks, coastal terminals, and enough competition between distributors to keep things somewhat honest. Tasmania has none of that. Fuel arrives at the port of Devonport or Hobart on tankers, gets trucked to regional depots, then trucked again to individual servos. Every link in that chain adds cost.
The practical upshot for your wallet is that Tasmanians routinely pay 5 to 15 cents more per litre than their mainland counterparts for the same fuel. Right now, with diesel averaging 311.8 cents, that gap is widening. Compare that to Victoria at 308.0 cents or even Western Australia at 309.7 cents and you can see Tasmania is paying a premium despite having a smaller, less competitive market.
But here's where it gets really interesting. The spread between the cheapest and most expensive diesel in Tasmania is a staggering 104.9 cents. You can find diesel for 244.0 cents at one end of the state and pay 348.9 cents at the other. That's not a functioning competitive market. That's geography dictating what you pay.
The Regional Towns Wearing It Worst
Tasmania's regional communities cop it hardest. While Hobart servos tend to cluster within a few cents of each other, drive an hour out of the capital and you're at the mercy of whoever runs the local bowser. With fewer stations competing, there's less pressure to keep prices sharp.
To put this in perspective, the national diesel picture isn't pretty anywhere right now. New South Wales is averaging 313.5 cents across more than 1,060 stations. The Northern Territory jumped a whopping 29 cents overnight to 304.1 cents, driven largely by remote community pricing where diesel can reach 399.0 cents a litre. But those NT figures include places like Alice Springs, where prices surged over 41 cents in a single reporting period, and Katherine, Borroloola, and Ti Tree, which are among the most isolated fuel stops in the country.
Tasmania sits in an awkward middle ground. Not as remote as the Territory, not as well supplied as the mainland capitals. Close enough to feel like it should be competitive, far enough away that it never quite is.
The Bigger Picture on Diesel
Diesel prices have been climbing across every Australian state this week. ACT is up 3.1 cents, Victoria up 4.5 cents, WA up 5.6 cents, Tasmania up 8.9 cents, NSW up 9.8 cents. This isn't a local story. It's a national one.
Behind the scenes, wholesale diesel costs have been pushed higher by a combination of refinery maintenance schedules in Singapore (where much of Australia's refined fuel originates) and continued geopolitical tension affecting shipping routes. Australian refineries, all two of them that still process crude domestically, can't make up the shortfall. We import roughly 90 per cent of our refined fuel, which means when Asian refining margins tighten, Australian motorists feel it within days.
For truckies, farmers, and anyone running diesel vehicles or equipment, this is more than an inconvenience. Diesel powers the supply chain. When diesel goes up, the cost of getting food to supermarket shelves, building materials to construction sites, and livestock to market goes up with it. Tasmania, where road freight is the only option for internal distribution, feels this pressure more acutely than anywhere else.
Some Relief If You Know Where to Look
Not every Tasmanian bowser is charging top dollar. The data shows pockets of competitive pricing, particularly around the larger population centres where multiple retailers compete for business. The trick, as always, is checking before you fill.
On the mainland, some outer suburban servos are also holding the line. Cranbourne West in Victoria has diesel locked at 293.5 cents across all three stations. Kununurra in far north WA has one retailer still showing 199.5 cents, though the town average sits at 289.6 after a 22 cent jump overnight.
For Tasmanian drivers filling a standard 60 litre tank with unleaded at current prices, you're looking at about $155. A month ago, that same fill would have cost closer to $148. It adds up, especially for households running two cars or anyone commuting longer distances.
Where This Goes From Here
The real story is that Tasmania's fuel supply vulnerability isn't new and nobody in Canberra seems particularly interested in fixing it. There's been talk for years about increasing fuel storage capacity on the island, improving port infrastructure, and even investigating whether a pipeline under Bass Strait could be viable. None of it has progressed beyond feasibility studies and parliamentary committee reports.
Until something structural changes, Tasmanians will keep paying the island premium. And weeks like this one, where diesel climbs nearly 9 cents and unleaded follows, will keep reminding them that being surrounded by water comes with costs that extend well beyond the ferry ticket.
Keep an eye on this space. With refinery margins still tight and no relief in the shipping calendar until mid April, the next fortnight could push prices higher still.
