Western Australia Diesel Prices Fall While Northern Territory Climbs 24 Percent

Western Australia Diesel Prices Fall While Northern Territory Climbs 24 Percent

Latest data from across Australia reveals a fascinating divergence in diesel pricing, with Western Australia motorists enjoying price relief while Northern Territory drivers face substantial increases. The numbers from 20th November 2025 at 8:02am AEDT tell an interesting story about regional fuel market dynamics.

The Numbers Behind the Divide

Analysing data from 2,700 diesel reporting stations nationwide, Western Australia shows a modest but welcome 1.86 percent decrease, bringing average diesel prices down 3.6 cents to 189.7 cents per litre. Meanwhile, Northern Territory experienced a notable 23.8 percent jump, with average prices increasing 46 cents to 239.3 cents per litre across 174 stations.

The spread between the cheapest and most expensive WA diesel sits at 71 cents, ranging from 169.9 to 240.9 cents per litre. This represents significant savings potential for motorists willing to compare prices before filling up.

Where to Find the Best Diesel Prices

The data reveals several standout locations for diesel savings in Western Australia. Broadwater leads the pack with an average of 172.8 cents per litre, closely followed by Byford at 175.2 cents and Bassendean at 176.0 cents per litre.

Interestingly, Kwinana Beach offers competitive pricing at 177.6 cents average across five stations, with the cheapest diesel available at 173.3 cents. For Perth metro drivers, Forrestfield presents another strong option with prices averaging 178.5 cents.

Regional WA locations also show competitive pricing. Pinjarra averages 176.7 cents across seven stations, while Busselton comes in at 179.4 cents average with ten stations to choose from. The regional coverage provides diesel drivers with genuine options for price comparison.

The Eastern States Picture

New South Wales diesel prices remain relatively stable, showing a marginal 0.26 percent decrease to 191.7 cents per litre. With 1,267 stations reporting, NSW motorists have access to prices ranging from 167.9 to 269.9 cents, a remarkable 102 cent spread that underscores the importance of price comparison.

Fairfield in Sydney western suburbs stands out with an average of 176.9 cents across four stations, making it one of the most competitive diesel locations in NSW. Further afield, Oberon offers an average of 177.9 cents, while regional Gloucester sits at 180.9 cents.

Victoria shows minimal movement with a 0.21 percent increase to 190.5 cents average across 552 stations. Reservoir emerges as a value location with an average of 181.3 cents, though the spread across seven stations ranges from 172.9 to 199.9 cents. Deer Park presents similar dynamics at 181.7 cents average.

Understanding the Northern Territory Increase

The 23.8 percent jump in NT diesel prices represents the most significant movement in today's data. At 239.3 cents per litre average, Northern Territory now sits substantially above the national average. Worth noting is that Katherine and Katherine South both average around 180 cents per litre, well below the NT average, suggesting remote location pricing drives the state average higher.

The extreme 189.5 cent spread in NT pricing, from 174.5 to 364 cents per litre, reflects the logistical challenges of fuel distribution across such vast distances with limited infrastructure.

Premium Fuel Price Movements

While diesel dominates today's analysis, the data also reveals interesting movements in premium petrol. Braeside in Victoria saw Premium Unleaded 95 drop a substantial 32.9 cents to 200.0 cents per litre across five stations.

In Western Australia, standard unleaded petrol showed notable decreases in several suburbs. Byford dropped 26.4 cents to 183.5 cents average, while Morley fell 24.2 cents to 175.7 cents. Ascot also benefited from a 19.8 cent decrease to 180.1 cents average for unleaded petrol.

What This Means for Motorists

Statistically speaking, diesel drivers in Western Australia are experiencing one of the most competitive pricing periods in recent months. The combination of falling averages and competitive regional pricing creates genuine savings opportunities, particularly for commercial operators and SUV owners who rely on diesel.

For Northern Territory motorists, the data suggests focusing on larger regional centres like Katherine rather than remote locations, where logistical costs add substantially to pump prices.

NSW and Victorian diesel drivers should leverage the substantial price spreads in their markets. The difference between cheapest and most expensive locations can easily represent $15 to $20 per tank for typical diesel vehicles.

Regional Comparison Summary

Looking at the complete national picture, Tasmania enters the data for the first time with 41 stations reporting an average of 190.8 cents per litre, sitting comfortably in the middle of the pack. South Australia was not included in today's diesel analysis, though historical data suggests pricing typically tracks between Victoria and WA averages.

The 22.1 cent spread in Tasmania, ranging from 179.9 to 202.0 cents, appears modest compared to mainland states, potentially reflecting the island state's more centralised distribution network.

Actionable Insights

The numbers are clear: diesel motorists who invest time in price comparison and strategic fill up timing could save substantially. Western Australia drivers should capitalise on current competitive pricing, particularly in metro fringe suburbs like Broadwater, Byford, and Bassendean.

NSW and Victorian motorists benefit from checking prices at multiple locations, given the extreme spreads in both states. The difference between a convenient servo and a competitive one can easily exceed 20 cents per litre, translating to real savings for regular diesel users.

For fleet operators and commercial drivers, today's data reinforces the value of fuel management systems that identify optimal refuelling locations based on route and current pricing. The regional variations across Australia mean that strategic planning delivers measurable cost reductions.

A closer analysis reveals that price consciousness pays off, whether you're filling up in Perth, Sydney, or Melbourne. The data provides the roadmap; motorists simply need to use it.