Northern Territory Records Australia's Widest Diesel Spread at 249 Cents Per Litre

Northern Territory Records Australia's Widest Diesel Spread at 249 Cents Per Litre

A comprehensive analysis of the latest fuel pricing data across Australia has uncovered a startling disparity in the Northern Territory that dwarfs price variations seen in any other state. According to the most recent figures from 22nd February 2026, the gap between the cheapest and most expensive diesel in the Territory has blown out to 249 cents per litre, with prices ranging from as low as 150.0 cents at the bottom end to 399.0 cents at remote servos.

To put that in perspective, a driver filling a standard 70 litre tank at the cheapest NT servo would pay $105. At the most expensive, that same tank would cost $279.30. That is a difference of $174.30 for the same fuel in the same state.

Katherine Emerges as the Territory's Value Pick

Drilling down into the specifics, the data paints a clear picture of where savvy motorists can find relief. Katherine, located roughly 320 kilometres south of Darwin, has emerged as one of the Territory's most affordable diesel markets. Across four reporting stations, Katherine is averaging 173.2 cents per litre, with the cheapest servo offering 171.5 cents and the most expensive at 176.9 cents. That 5.4 cent spread within Katherine is remarkably tight, suggesting genuine competition between local operators.

By contrast, the Territory wide median sits at a substantial 235.3 cents per litre, pulled upward by extreme pricing at remote and isolated stations. For the 174 stations reporting across the Northern Territory, that median figure alone is the highest of any Australian state by a considerable margin.

How the Northern Territory Compares to the Rest of Australia

Breaking down the regional differences, the latest data reveals just how far NT diesel prices sit above the national pack. Victoria is currently recording a median diesel price of 179.9 cents across 827 stations. Western Australia sits at 180.2 cents from 445 stations. New South Wales, the largest market with 1,066 reporting stations, shows a median of 181.7 cents.

Even Tasmania, an island state that faces its own transport cost challenges, is averaging 185.2 cents across 239 stations. The ACT rounds out the comparison at 193.2 cents, though with only three reporting stations the sample size is limited.

This pattern is consistent with historical data. Mainland states with competitive metro markets and efficient supply chains cluster in that 179 to 182 cent range for diesel, while the Northern Territory sits more than 50 cents above that band at the median level.

The Story Behind the Numbers

Industry factors help explain why the Territory stands apart. The vast distances between population centres, combined with low station density in remote communities, create a freight cost burden that simply does not exist in Melbourne or Sydney. A tanker delivering fuel to a remote NT roadhouse may travel hundreds of kilometres on unsealed roads to service a station that sells a fraction of the volume a metro servo moves in a single morning.

Limited competition also plays a role. In Katherine, four stations are enough to keep prices relatively honest. But in isolated communities where a single servo operates without any competitor within a 200 kilometre radius, the pricing dynamic is fundamentally different.

The 249 cent spread also reflects the Territory's unique role as a transit corridor for freight moving between Adelaide and Darwin along the Stuart Highway. Trucking operators planning long haul routes through the NT face a genuine strategic decision about where to fill up, with tens of thousands of dollars at stake over the course of a year.

What This Means for Motorists and Travellers

For motorists willing to shop around, the data clearly demonstrates that planning fuel stops remains essential when travelling through the Northern Territory. Filling up in larger centres like Katherine, Darwin, or Alice Springs before heading into more remote stretches can save well over a dollar per litre compared to the most expensive roadhouse stops.

Historical data suggests these extreme spreads are not a temporary spike but a structural feature of the Territory's fuel market. Until competition increases or supply logistics improve in remote areas, the gap between the cheapest and most expensive diesel in the NT is likely to persist.

For anyone heading north this dry season, or freight operators mapping out their next supply run, the message from the numbers is clear: plan your fuel stops carefully, and top up whenever you find a competitive price. Use our interactive fuel map to check live prices along your route before you set off.