Northern Territory Diesel Jumps 45 Cents Overnight and Remote Communities Are Paying Close to $4 a Litre

Northern Territory Diesel Jumps 45 Cents Overnight and Remote Communities Are Paying Close to $4 a Litre

A 45.6 cent overnight increase in the Northern Territory diesel average is the single largest daily state level movement recorded this month across Australia. The data from 166 stations paints a striking picture: the territory wide average has climbed from 253.5 to 299.1 cents per litre, a 17.99 per cent jump that has pushed the NT uncomfortably close to the $3 mark.

What makes this movement notable is not just the headline number. It is the spread underneath it.

A $2.52 Gap Between Cheapest and Most Expensive

The cheapest diesel in the Northern Territory this morning sits at 147.3 cents per litre. The most expensive is 399.0 cents. That is a spread of $2.52 per litre, the widest pricing gap of any Australian state or territory by a substantial margin.

To put that in perspective, Victoria has a diesel spread of 54.4 cents across 695 stations. New South Wales records 114.0 cents across 1,062 stations. Even Western Australia, which covers enormous distances, shows a 136.3 cent spread across 447 stations. The NT's $2.52 gap dwarfs them all.

The analysis reveals a familiar pattern. Remote communities bear the heaviest burden. Borroloola, a small town roughly 970 kilometres southeast of Darwin, averages 278.0 cents across four stations, with the most expensive hitting 305.0 cents. Elliott, on the Stuart Highway between Katherine and Tennant Creek, averages 286.0 cents. Mataranka, about 420 kilometres south of Darwin, averages 290.3 cents.

Interestingly, the cheapest diesel in the territory sits in Ti Tree, a small community roughly 200 kilometres north of Alice Springs, where the lowest posted price is 249.0 cents. Even there, the average across three stations is 266.3 cents.

Katherine Offers Slight Relief

For motorists on the Stuart Highway corridor, Katherine presents the best value among the territory's regional centres. Four stations there average 291.9 cents, with the cheapest at 275.9 cents. That 24 cent spread within a single town is worth noting for anyone planning a long haul trip through the territory. Shopping around at Katherine before heading further into remote areas could save a meaningful amount over a full tank.

How the NT Compares Nationally

The national diesel picture this morning shows broad upward pressure, but nothing approaching the NT's scale.

NSW diesel averages 307.1 cents across 1,062 stations, up 14.7 cents overnight. Tasmania sits at 304.2 cents, up 9.3 cents. Western Australia averages 303.3 cents, up 4.5 cents. The ACT has moved to 301.1 cents, up 6.2 cents.

Victoria is the outlier on the other side. The state average has actually edged down 0.6 cents to 297.7 cents, making it the cheapest state for diesel this morning. Melbourne's outer suburbs are particularly competitive. Cranbourne West averages just 289.7 cents with a remarkably tight 0.4 cent spread between its three stations. Somerton has one outlet posting 275.5 cents, the lowest metropolitan diesel price recorded this morning.

Statistically speaking, motorists in Victoria are paying roughly $30 less to fill a 70 litre diesel tank compared to the worst priced stations in the Northern Territory. That gap is extraordinary for a single country.

What Is Driving the NT Spike

The Northern Territory's pricing dynamics are shaped by factors that simply do not apply in the southern states. Fuel arrives by road train from Adelaide or Darwin, with transport costs adding substantially to the base price for every kilometre of distance from those hubs. Limited competition in remote areas means there is less downward pressure on retail margins. And smaller volumes at remote stations mean fixed costs are spread across fewer litres.

A 45 cent overnight jump typically indicates a wholesale price adjustment flowing through to retail simultaneously across multiple stations, rather than the gradual creep seen in more competitive metropolitan markets. With only 166 stations across an area larger than France, Germany and Spain combined, price movements tend to be sharper and less cushioned by competition.

The Takeaway for NT Motorists

The numbers are clear: motorists who time their fill ups strategically could save substantially. For anyone travelling the Stuart Highway, filling up in Katherine or Ti Tree before entering more remote stretches makes a measurable difference. The data indicates a potential saving of 20 to 40 cents per litre simply by choosing the right stop.

For those in Darwin and surrounds, the territory capital remains more competitive than the remote average, but the overnight movement suggests this week's prices are likely to stay elevated. Worth keeping an eye on our interactive fuel map for the latest movements as the week progresses.

*Sarah Chen reports on fuel pricing data from across Australia. All prices cited are based on data collected on 25th Mar 2026.*