Four Darwin Servos Sell Unleaded Up to 12 Cents Under the Price They Lodged. The NT Lock Allows It
After 2:30pm each day, MyFuel NT shows the price every Territory servo has lodged for tomorrow. At four United sites around Darwin, that number has been a poor guide for most of the past three weeks, because the pump price has usually come in lower.
At 2:14pm AEDT on 12 October 2026 (12:44pm in Darwin), United on Smith Street, United Parap Pieface, United Casuarina Pieface in Wanguri and the United Winnellie Roadhouse were all listing unleaded at 239.5. They had lodged 247.9, 248.9, 247.9 and 251.9 for today. That's 8.4 to 12.4 cents a litre under their own lodged prices, and it's entirely legal.
What the NT rule says
The Northern Territory rule, announced by the Attorney General on 20 April, runs to a daily timetable. Retailers report each fuel's price for the following day between 8:30am and 2pm. MyFuel NT publishes those prices at 2:30pm, and they take effect at 6am the next morning. From then the price can't go up for 24 hours. It can come down, as long as the retailer reports the cut. Fines reach $18,900 for individuals and $94,500 for companies.
Our readings of the MyFuel NT feed show the rule working as written. Since 5 October, the first full day of daylight saving, we've logged 171 unleaded price rises across 94 of the Territory's 183 servos. Every one of them first showed up in our 8am Darwin time reading, after the 6am changeover, and none appeared later in the day. Cuts were another matter: 37 of them at 25 servos, spread through the day and overnight.
Lodge high, sell lower
What most people don't realise is that a lodged price is the most a servo can charge that day. Nothing stops it charging less.
United Petroleum hasn't explained its approach, but the pattern is easy to see. On most days its four Darwin sites lodge somewhere between 241.9 and 251.9, and by mid morning the pump reads 239.5. That happens to be exactly where Fuelxpress Winnellie on Coonawarra Road sits. Fuelxpress has lodged 239.5 on 21 of the last 22 days.
Lodging high costs United nothing, because the rules let it cut whenever it likes. If it lodged 239.5, that figure would become its maximum for the day. Smith Street, Parap and Wanguri showed 239.5 at our mid morning reading on at least 20 of the past 22 days. The Winnellie Roadhouse sat at 245.9 to 246.9 from 24 September to 4 October and has joined them since 5 October.
Darwin keeps climbing around them
Across 45 servos in Darwin, Palmerston and the rural area, the median unleaded price has gone from 245.9 between 2 and 6 October to 249.9 today, and the dearest sites are on 252.9. On a 50 litre fill, paying 239.5 instead of the median saves $5.20.
About 300 kilometres down the Stuart Highway, Katherine shows the same pattern. United's Pieface and Katherine South sites there lodged 247.9 for today and are selling at 243.9, level with Liberty. In Alice Springs the median is 266.9, 17 cents above Darwin.
How other price locks compare
Western Australia has run the same timetable for more than two decades: notify by 2pm, publish at 2:30pm, apply from 6am. The difference is that a WA price is fixed in both directions for 24 hours, so a Perth servo can't lodge high and trim later.
The Territory's version is closer to Austria's. Austrian servos may raise prices only once a day, at noon, but can cut whenever they like. Austria has had a rule like this since 2009 and recently extended it to 2028. Germany adopted a similar model on 1 April this year.
So far, NT enforcement has gone after the opposite problem. Between 31 March and 7 June, NT Consumer Affairs completed 858 MyFuel NT compliance checks and fined two national chain outlets $18,958 each for advertising one price and charging more at the bowser. Charging less than the lodged price breaks no rule.
What it means at the bowser
- The 2:30pm figure is a cap on tomorrow's price, and what you pay can be lower. Check the live price once the morning cuts have landed.
- Rises only land at 6am. If your local servo has lodged a rise, fill up the evening before.
- Cuts can come at any hour, so a midday check can pay off.
- Compare across town with our unleaded petrol prices and follow the bigger picture on price trends.
On the evidence so far, the lock does what it was designed to do. No unleaded rise has slipped through outside the 6am window. It just doesn't make the published number the price you'll pay, and in Darwin right now that gap is as much as 12.4 cents a litre, which is worth checking before you fill up.