Canberra Servos Price Within One Cent of Each Other While Tasmania Joins the National Diesel Lift
The number that caught my eye this afternoon is exactly one cent. That is the full spread across the 23 diesel pumps we track in Canberra, every one of them priced between 207.9 and 208.9 cents a litre. It also makes the ACT the cheapest state or territory for diesel in the country right now, with an average of 208.8 cents as of Sunday 19th Jul 2026 2:11pm AEST.
The one cent territory
No other state or territory comes close to that uniformity. The gap between the cheapest and dearest diesel pump in the Northern Territory is 244.1 cents, running from 187.9 all the way up to 432.0 in the remote outback. Western Australia has a 208.1 cent spread. Even compact Victoria covers 180.1 cents from its cheapest pump to its dearest.
The ACT sits at 1.0 cent.
To me that points to a small, tightly contested market where operators price almost in lockstep. For Canberra motorists the takeaway is unusual but genuine: shopping around for diesel inside the territory gains you almost nothing this week, because there is almost no variation to find. The consolation is the average itself, which sits 1.0 cent under Victoria's 209.8 and 1.7 cents under the NSW figure.
Tasmania joins the lift
The more substantial movement happened across Bass Strait. Tasmania's average diesel price lifted 7.6 cents in 24 hours, moving from 205.9 to 213.5 cents, a 3.7 percent rise across the 257 stations we monitor there. The cheapest Tasmanian pump is still selling at 184.9, though, so motorists around Hobart and Launceston who compare before filling can still buy nearly 30 cents under the new average.
Tasmania was far from alone. The past 24 hours brought a broad lift right across the country:
- New South Wales: up 8.8 cents to 210.5
- Western Australia: up 7.6 cents to 215.9
- Tasmania: up 7.6 cents to 213.5
- South Australia: up 4.7 cents to 210.7
- Queensland: up 2.5 cents to 211.2
- Victoria: up just 0.8 cents to 209.8
The odd one out is Victoria. After regional centres like Traralgon led the rises I covered on Friday, the state average has settled, and Victoria now holds the second cheapest diesel in the country behind only the ACT.
Where the cheapest diesel actually is
Averages hide a lot, though. At suburb level, several pockets are holding comfortably under 190 cents:
- Greenacre in Sydney's west has the cheapest pump in NSW at 181.9
- Kwinana Beach south of Perth starts at 186.9
- Granville still has all three of its servos at exactly 189.5, the same decimal matching pattern I flagged last week
- Mount Gambier leads regional South Australia from 189.9
- Batchelor shows Territory prices can behave, also starting at 189.9
And the single cheapest diesel pump in the country remains in Stawell at 169.9 cents, which is 38.9 cents below even the ACT's nation leading average.
What the numbers mean for your next fill
Four things follow from the data.
- If you drive a diesel in Canberra, fill wherever is convenient. Every pump in the territory is within a cent of every other.
- Tasmanian motorists should treat 213.5 as a ceiling, not a target. With the cheapest local pump at 184.9, checking live diesel prices before you leave home matters more than usual after a 7.6 cent rise.
- In Sydney and Perth, the sub 190 pockets above are worth a short detour for anyone filling a large tank.
- Statistically speaking, broad lifts like this one tend to arrive unevenly, so the price trends page is the quickest way to check whether your state is still climbing before you commit to a full tank.
The numbers are clear: a 43.6 cent gap now separates Stawell's 169.9 from Tasmania's new 213.5 average, and knowing which side of that spread your local servo sits on is worth real money every time you fill.
