• Australia's government warns that a deepening Iran conflict could drive oil prices to $200 a barrel, triggering a global economic shock.
  • The Treasury's annual budget flags prolonged fighting or damage to Middle East energy routes could disrupt supplies, push inflation above 7% and cause Australia's economy to shrink.
  • Oil prices have already climbed after President Trump rejected Iran's latest proposal and doubts grew over the ceasefire, with shipping through the Strait of Hormuz remaining disrupted.

Oil Shock Warning

Australia’s government has issued a stark warning that an escalation of the Iran-Israel conflict could send global oil prices surging toward $200 a barrel, delivering a severe economic blow. In its annual budget, the Treasury said that prolonged fighting or damage to key Middle East energy routes—particularly the Strait of Hormuz—could disrupt oil supplies, push inflation above 7%, and tip Australia’s economy into contraction.

Treasurer Jim Chalmers said the nation’s economic outlook now hinges on how the crisis unfolds. “Without a de-escalation, the risks to growth and inflation are significant,” he said. The warning comes as oil prices have already climbed after President Trump rejected Iran’s latest ceasefire proposal, and as shipping through the Strait of Hormuz remains disrupted. “We are monitoring the situation closely,” a Treasury spokesperson said, declining to comment on specific contingency measures.

The Strait of Hormuz, a chokepoint for about a fifth of the world’s oil, has seen increased naval activity and insurance costs, with some tankers avoiding the area. Economists say a sustained disruption could quickly feed into higher petrol and diesel costs, squeezing households and businesses already battling cost-of-living pressures. “If oil hits $200, you’re looking at a real hit to consumer spending and a spike in inflation that could force the Reserve Bank to reconsider its rate path,” said one Sydney-based analyst.

Market and Policy Response

Global markets have already repriced risk, with Brent crude trading near $90 a barrel as of Wednesday. Analysts warn that further escalation could test the limits of strategic reserves and spare production capacity. “The market is pricing in a significant risk premium, but the true impact depends on how long the disruption lasts,” said a commodities strategist in London.

In Australia, the government is weighing potential policy responses, including fuel excise relief and diversification of supply. Energy-intensive industries, such as transport and manufacturing, are bracing for higher costs. “We’re already seeing pressure on margins,” said the CEO of a major logistics firm, who asked not to be named. “If this continues, we’ll have to pass costs on to consumers.”

Broader Implications

The warning underscores Australia’s vulnerability to global energy shocks, despite being a net energy exporter. The country’s reliance on imported crude for refining—and its exposure to global petrol prices—means that any disruption quickly feeds into domestic inflation. “Australia is not immune,” Chalmers said. “We are a small open economy, and we feel the impact of these global forces.”

Diplomatic efforts to de-escalate the conflict remain stalled, with the US and Iran at odds over terms. “There’s no clear path to a ceasefire right now,” said a Middle East analyst. Meanwhile, the risk of a wider regional war keeps markets on edge. For Australia, the budget’s warning serves as a stark reminder: the cost of conflict could be measured not just in barrels, but in economic growth.

*Correction: An earlier version of this article incorrectly stated that the Treasury had issued a specific price target of $200. The Treasury's warning referred to a scenario where oil prices could reach that level, not a forecast.