Market Update
Saturday 4 July 2026
Unleaded 91 and diesel · Brent crude, AUD/USD, capital pump prices, and city-by-city 4-week outlook
What moved this week
As of Saturday 4 July 2026, the national average for Unleaded 91 across Australia's capital cities sits at 169.4c/L, up 11.0c on last week. Diesel averages 192.0c/L nationally, with the cheapest reported bowser at 159.9c/L. Wholesale import costs held around 136.6c/L, suggesting little fresh pressure on pump prices from the global side.
Wholesale market signals
Brent Crude
US$72.13
per barrel
Singapore MOGAS tracks Brent with ~1 week lag
AUD/USD
0.6943
exchange rate
A lower AUD raises the cost of imported fuel
Import Parity
136.6
cents per litre
Estimated wholesale cost before excise and GST
What this means for pump prices
Brent crude held broadly steady around US$72.13 per barrel, while the Australian dollar held flat 0.6% against the US dollar. These are the two inputs that, together with refining and shipping margins, determine the wholesale cost of fuel landed at Australian terminals.
The four-week outlook is leaning lower. Prices likely to ease over the next 4 weeks Crude oil has fallen 10% and the australian dollar has weakened — the cost of importing petrol is down 5%. That typically flows through to the pump within 3–4 weeks. Don't over-fill right now — cheaper prices are likely coming.
Import parity hasn't moved much this week, so any pump price changes you see at the bowser will be driven mainly by the local discounting cycle rather than the global signal.
Capital city pump prices
Average and cheapest reported pump prices in each capital on Saturday 4 July 2026, with the change vs 7 and 30 days prior.
| City | U91 avg | U91 cheap |
|---|---|---|
| Sydney | 164.7c | 144.9c |
| Melbourne | 162.5c | 143.5c |
| Brisbane | 166.7c | 149.9c |
| Adelaide | 165.9c | 153.7c |
| Perth | 165.7c | 148.7c |
| Canberra | 174.7c | 159.7c |
| Hobart | 179.0c | 159.9c |
| Darwin | 176.0c | 166.9c |
Averages computed from stations within a metro radius of each capital. 7d and 30d deltas apply to the U91 average.
City-by-city cycle outlook
Where each capital sat in its local discounting cycle on Saturday 4 July 2026, and what the model was telling drivers to do.
Sydney
Rising — heading toward peakFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Melbourne
Near trough — cycle lowFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Brisbane
Rising — heading toward peakFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Perth
Rising — heading toward peakFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Adelaide
Cycle position unclearFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Canberra
Rising — heading toward peakFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Hobart
Rising — heading toward peakFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Darwin
Rising — heading toward peakFill up nowThe Fuel excise relief wound back has taken effect. Prices are rising by around 16c/L and may keep climbing over the coming days as it flows through to the pump. Worth filling up now.
Looking ahead
Sydney, Brisbane, Perth, Canberra, Hobart, Darwin are in the rising leg of the local price cycle, so expect bowser prices to climb before they fall again; Melbourne is on the falling leg, which is when local prices typically reach their lowest before the cycle resets.
Across our coverage, the cycle call leans toward fill-up now in Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Hobart, Darwin — the model's read is that prices are at or near the local trough and likely to climb in coming days.
Layered over the local cycle, the macro signal is biased downward for the next four weeks based on the wholesale cost trajectory. That doesn't always change the day-to-day call, but it does shift where each city's cycle is likely to land relative to recent history.
How this update is generated
Each day at 6:00am AEST, PetrolPulse fetches the latest Brent crude spot price and AUD/USD exchange rate, then combines them using the standard Singapore MOPS import parity formula to estimate the wholesale cost of fuel delivered to Australian terminals.
Capital city averages are computed from live station-level data within a metro radius of each capital — not state-wide aggregates — so regional outliers don't skew the headline number. Comparisons against 7 and 30 days prior show whether the city was trending up or down on the day, separate from the wholesale signal.
The city-by-city cycle outlook combines local cycle-position analysis with the forward-looking macro signals above. When import parity moves significantly relative to current retail prices and the recent margin, the directional call updates automatically.