Iran war impact on global oil prices and Australian fuel costs
Consensus Summary
All articles cover the impact of the Iran war on global oil markets and Australian fuel prices, focusing on the two-week ceasefire announced on April 7, 2026. The Strait of Hormuz, which carries 20% of the world’s seaborne oil, has been effectively blocked since late February, causing petrol prices in Australia to surge over 30% to record highs above $2.50 per litre and diesel prices to rise as much as 100%. The ceasefire triggered a brief drop in global oil prices, but experts warn relief at the pump will take weeks or months due to supply chain bottlenecks, damaged infrastructure, and uncertainty over Iran’s conditions for reopening the Strait. Analysts from multiple sources agree that even if the war ends, oil prices will not return to pre-war levels of $60 per barrel but will likely stabilize around $80–$90, with some suggesting a permanent geopolitical premium. Diesel shortages pose a greater economic risk than petrol price hikes, affecting transport and imported goods. While the Australian government has temporarily cut fuel excise and GST, industry leaders and economists caution that full recovery will take months to years, with some infrastructure repairs potentially taking up to three years.
✓ Verified by 2+ sources
Key details reported by multiple sources:
- The Strait of Hormuz carries up to 20% of the world’s seaborne oil and gas shipments.
- Australian regular unleaded petrol prices surged over 30% since the Iran war began on February 28, 2026, reaching record highs above $2.50 per litre.
- A two-week ceasefire between the US and Iran was announced on April 7, 2026, with hopes of a longer-term peace deal.
- Global benchmark Brent crude oil price dropped by about $20 per barrel (from $110 to $90) following the ceasefire announcement, then rebounded to $97.
- Diesel prices in Australia have risen as much as 100% since the war began, reaching $3.00–$3.24 per litre in April 2026.
- About 9–13 million barrels of oil per day (9–13% of global supply) have been paused due to the Strait of Hormuz blockade.
- Australia sources most of its fuel from Asian refiners (Japan, China, Singapore, Southeast Asia), which rely on Middle Eastern oil passing through the Strait of Hormuz.
- The Australian government temporarily cut fuel excise by 26 cents per litre and removed 10% GST on fuel in response to the crisis.
- Experts warn it will take months to years to fully restore Middle Eastern oil and LNG infrastructure after war damage.
Points of Difference
Details reported by only one source:
- Scott Wyatt, CEO of Viva Energy, warned that even if the Strait of Hormuz reopened, it would take months for fuel prices to return to pre-war levels due to systemic supply chain disruptions.
- US President Donald Trump claimed that leaving Iran would immediately deflate oil prices, saying, 'All I have to do is leave Iran, and we’ll be doing that very soon, and they’ll come tumbling down.'
- The NSW government allocated an extra $2.2 million to the FuelCheck service to provide real-time fuel price information from 2,400 service stations.
- A compliance blitz of 1,800 NSW service stations issued 93 infringement notices since April 2026.
- MST Financial’s Saul Kavonic estimated it would take 4–8 weeks to restart shuttered oil capacity and up to two years to refill global emergency fuel stockpiles.
- Kaushal Ramesh from Rystad Energy stated that Australia is at the 'end of the line' for oil supply chains, meaning price relief would take 'a few weeks at best.'
- Rowen Lee from the Australasian Convenience and Petroleum Marketers Association said no one can predict how the market will react due to ongoing uncertainty.
- Diesel shortages are causing greater economic pain than petrol price hikes, with transport and imported goods affected.
- The ceasefire is described as 'double-sided,' with Iran and the US pausing hostilities for two weeks.
- Iran has not yet given a clear 'go' for reopening the Strait of Hormuz, stating it will be 'subject to X, Y, and Z' conditions, including military presence and cargo details.
- Israel’s bombing of Lebanon after the ceasefire announcement led Iran to halt traffic through the Strait of Hormuz, reversing initial oil price relief.
- Gulf countries oppose Iran’s proposal for a formal toll arrangement to control shipping through the Strait of Hormuz.
- The Ras Laffan LNG facility in Qatar, the world’s largest, has been offline since March 2 and could remain sidelined for two to three years.
- CBA’s Vivek Dhar warned of a permanent 'geopolitical premium' on Middle East oil and gas, even if the war ends.
- Kuwait Petroleum flagged it could take three to four months to restore full output from shut-in wells.
Where the reporting differs
Details that conflict, or appear in only some outlets:
- The ABC and Guardian report that the ceasefire led to a $20 drop in Brent crude prices, but the Guardian later notes prices rebounded to $97, while the SMH suggests prices could continue falling if the ceasefire holds.
- The SMH states petrol prices in Australia have surged beyond $2.50 per litre, while the Guardian reports unleaded petrol prices remain around $2.25 per litre in major cities despite recent declines.
- The ABC claims diesel prices have reached $3.00 per litre in some areas, while the Guardian reports diesel prices hit new record highs of $3.24 per litre in April 2026.
- The SMH suggests a peace deal could lead to a return to pre-war oil prices of around $60 per barrel, while the Guardian and ABC imply prices will stabilize at $80–$90 per barrel even if the war ends.
- The ABC states Iran has not given a clear 'go' for reopening the Strait of Hormuz, while the SMH implies the ceasefire includes a commitment to reopen it.
Source Articles
Even if the Strait of Hormuz opened tomorrow, it could take months for fuel prices to come down
Donald Trump says oil prices would fall rapidly if the US ended its war with Iran. Australian fuel companies are preparing for a longer setback.
How long will it take petrol prices to get back to pre-Iran war levels, if at all?
Iran's promise to reopen the Strait of Hormuz after striking a temporary agreement with the US saw the cost of oil fall sharply. But how quickly are we likely to see relief at the bowser in Australia? Analysts say it could be weeks or months.
Oil prices could take a year to return to pre-Iran levels even if ceasefire holds, Australian experts warn
Analysts say uncertain stability of truce and major damage to infrastructure among many issues that will keep prices high for foreseeable future Get our breaking news email , free app or daily news podcast Global oil markets could take as long as a year to return to something like pre-Iran war normality even if the conflict ended tomorrow, leading experts warn. Hopes for an immediate restart of shipping through the strait of Hormuz have been dashed after Israel bombarded Lebanon shortly after th
Australian petrol prices to fall within the month – if US-Iran ceasefire holds
Iran says it will allow ships through the Strait of Hormuz for two weeks in co-ordination with its armed forces, but petrol price relief would not be immediate in Australia.
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