Australian petrol prices have surged sharply in March 2026. After falling through January and February, fuel costs jumped approximately 50 cents per litre in under a month — and the data suggests the worst of the impact has not yet shown up in the official inflation figures.
Here is what the publicly available data shows about petrol prices in Australia right now, and what is driving the sudden spike.
What the ABS Data Shows About Petrol Prices
The Australian Bureau of Statistics tracks automotive fuel prices as part of its monthly Consumer Price Index. The most recent CPI data, for February 2026, shows automotive fuel prices were actually 7.2 per cent lower compared to 12 months earlier.
That figure is now significantly out of date. The February data was collected before the escalation of the conflict in the Middle East in late February and early March 2026. ABS head of prices statistics Sue-Ellen Luke noted at the time that automotive fuel prices fell 3.4 per cent in February and 3.2 per cent in January — prior to the Middle East conflict.
The March data, which will capture the fuel price spike, has not yet been published. Economists are watching it closely.
What Has Happened Since February
According to analysis from Macquarie University’s Lighthouse research unit cited by WealthWorks , petrol prices jumped approximately 50 cents per litre across Australia since the start of the conflict — rising from around $1.69 to $2.19 per litre on average. Some regional areas are seeing prices above $2.40 per litre.
NAB head of markets research Skye Masters estimated ahead of the February CPI release that fuel prices would see a more than 25 per cent jump in the March CPI measure. CBA senior economist Trent Saunders put the CPI measure of fuel prices rising by approximately 31 per cent in March. According to Westpac economists, March CPI could rise by 1.0 per cent in a single month, with headline inflation potentially reaching 5.5 per cent year-on-year by mid-2026 — driven largely by fuel.
For context, automotive fuel accounts for approximately 3 per cent of the CPI basket, making it a meaningful but not dominant contributor to overall inflation.
Why Petrol Prices Spiked — The Strait of Hormuz
The immediate cause of Australia’s fuel price spike is global. The Strait of Hormuz — the narrow waterway connecting the Persian Gulf to the open ocean — has been effectively disrupted since early March 2026 following the escalation of the Middle East conflict. Approximately 20 per cent of the world’s daily oil supply passes through this 33-kilometre-wide chokepoint. When shipping through the strait stalled, global oil prices spiked rapidly.
Australia is one of the most fuel-import-dependent nations in the developed world. We do not refine significant volumes of domestic petroleum — the majority of the petrol Australians pump into their cars was refined overseas and shipped here. That makes Australian fuel prices directly and quickly exposed to global oil market disruptions.
Australia’s Fuel Supply Position
Making the situation more significant, Australia’s fuel security position is tight. According to data cited by WealthWorks in late March 2026, Australia holds approximately 36 days of petrol supply, 29 days of jet fuel, and 32 days of diesel. These are among the lowest strategic fuel reserves of any developed nation.
Australia has a Liquid Fuel Emergency framework under the Liquid Fuel Emergency Act 1984 that allows rationing, price controls, and priority allocation to essential services in extreme scenarios. This framework has not been activated — but its existence reflects the structural vulnerability of Australia’s fuel supply chain.
The Government’s Response — Fuel Excise Halved From April 1
On 30 March 2026, Prime Minister Anthony Albanese announced a significant intervention following a meeting of the National Cabinet. The Albanese Government halved the fuel excise on petrol and diesel for three months, effective from 1 April 2026 to 30 June 2026.
The full excise is currently 52.6 cents per litre. The halved excise of 26.3 cents per litre will reduce the cost of a 65-litre tank by nearly $19. The ACCC has been tasked to monitor fuel prices and ensure the lower excise is fully passed on at the bowser.
The package also includes the heavy vehicle road user charge being reduced to zero for three months — providing direct relief to truck drivers who pay for fuel upfront and are reimbursed later — as well as a six-month deferral of the next scheduled increase.
Treasurer Jim Chalmers said the package was expected to reduce headline inflation by around half a percentage point through to the June quarter of 2026, at a total budget cost of $2.55 billion.
Will It Actually Help at the Bowser?
The honest picture is mixed. Petrol prices in Sydney and Melbourne reached approximately 258 cents per litre in the days before the announcement. The 26.3 cents per litre reduction should bring that back toward approximately 232 cents per litre — still significantly above pre-conflict levels of around 169 cents per litre.
The NRMA’s Peter Khoury noted the relief may be limited in practice, pointing out that a similar excise cut following Russia’s invasion of Ukraine in 2022 was barely felt by motorists because global prices kept rising. The key variable is whether the Middle East conflict stabilises or escalates further.
The government also outlined a four-stage National Fuel Security Plan. Australia is currently at stage two — “Keeping Australia Moving” — with stage three involving targeted intervention and stage four protecting critical services. Albanese stated that Australia holds approximately 39 days of petrol, 30 days of jet fuel, and similar diesel reserves.
Other measures announced alongside the excise cut include passing new laws to double penalties for petrol companies for price gouging, releasing 20 per cent of Australia’s strategic fuel reserves targeted at regional areas, and securing a supply agreement with Singapore to keep shipments flowing.
What Petrol Prices Look Like Across Australia Right Now
Before the March spike, petrol prices varied significantly across states and cities. According to ABS CPI data and GDP.com.au analysis of city-level fuel costs for 2026, Darwin recorded the highest average unleaded petrol prices at approximately 215 cents per litre, while Adelaide was the cheapest major city at approximately 193 cents per litre.
Most major eastern seaboard cities — Sydney, Melbourne, and Brisbane — follow a weekly price cycle driven by the pricing behaviour of major fuel retailers. Prices typically bottom out mid-week. Historically, filling up on a Thursday rather than a Sunday has saved around 15 cents per litre, or approximately $8 on a 55-litre tank. Whether that cycle has continued amid the broader price spike of March 2026 is subject to ongoing monitoring.
Regional and remote Australia pays significantly more for fuel in all conditions — transport costs and limited retail competition mean that prices in some remote communities can be 20 to 40 cents per litre higher than capital city averages even in stable market conditions.
What the Fuel Price Spike Means for Household Budgets
For the typical Australian household spending $20 more per week on fuel compared to previous years — a figure cited in multiple analyses of 2026 fuel costs — the annualised impact is over $1,000 per year just from fuel. For households with multiple vehicles or long commutes, the figure is higher.
The fuel price increase compounds existing cost pressures. As our coverage of 5 things getting more expensive shows, electricity, rent, and groceries are all rising simultaneously. The fuel spike adds another layer to household budget pressure heading into the middle of 2026.
Higher fuel prices also flow through indirectly to other costs. Transport and logistics costs affect the price of every product that moves by road — including groceries. The ABS data already shows beef and veal up 13.5 per cent annually and lamb and goat up 13.4 per cent. If fuel costs remain elevated, further pressure on food prices is likely.
For more on what is driving the RBA’s recent decisions in this environment, see our RBA interest rate rise.
Where Petrol Prices Stand and What to Watch
Based on the most recent available data and publicly available analysis, petrol prices across Australia have risen sharply since late February 2026 following global oil market disruption linked to the Middle East conflict. The February ABS CPI data does not yet capture this increase — the March figure, due in late April 2026, will be the first official measure of the full impact.
Westpac economists have flagged the possibility of headline inflation reaching 5.5 per cent year-on-year by mid-2026 if fuel prices remain elevated — well above the RBA’s 2 to 3 per cent target band. The RBA has already raised the cash rate to 4.1 per cent at back-to-back meetings in February and March. Whether a third consecutive hike materialises in May will depend significantly on how the March and April CPI figures track.
For the full picture of how the government is responding to cost of living pressures more broadly, see our coverage of the RBA interest rate decisions.
Fenro will report on the March CPI data and the next RBA decision as they are released.
This article is for general informational purposes only and reflects the author’s own research and understanding of publicly available data. It does not constitute financial advice. Data was accurate at the time of writing — always verify current figures directly with the ABS, ACCC, and other official sources.
