Highlights

  • Oil prices swung sharply after the first direct Israel-Iran military exchange since April, with Brent Crude briefly approaching US$98 before easing.
  • Crude prices stabilised near US$94 as concerns over immediate Supply disruptions faded and key shipping routes remained open.
  • Elevated energy prices have intensified Inflation concerns, with investors assessing the potential impact on global Monetary Policy.
  • ASX energy producers could benefit from higher oil prices, while broader markets face risks from rising inflation expectations.

Energy markets endured a wild ride as geopolitics returned to centre stage. Oil prices whipsawed violently after Israel and Iran exchanged direct fire for the first time since their April ceasefire, briefly spiking before retreating as the immediate threat of escalation eased. As trading opens on Tuesday 9 June 2026, crude sits near US$94, leaving investors to weigh the risk of a renewed conflict against the relief of a fragile pause. For inflation-watchers and ASX energy investors alike, the stakes are high.

A violent session for crude

The swings were dramatic. Brent crude surged towards US$98 at the height of the tensions before pulling back to around US$94 after Iran halted its strikes. West Texas Intermediate, the US benchmark, settled at US$91.20, up 0.90% on the session but well off its intraday peak. The pattern — a sharp spike followed by a partial retreat — is classic for an oil market reacting to a geopolitical flashpoint where the worst-case scenario is feared but not yet realised.

The trigger was the first direct military exchange between Israel and Iran since the 8 April ceasefire. Israeli Prime Minister Benjamin Netanyahu said Israel had halted its attacks, stopping short of acknowledging the ceasefire that US President Donald Trump said both sides were aiming for. Iran’s military told broadcasters it had ceased strikes but warned it would resume hostilities if Israel continued operations in southern Lebanon.

Why the market pulled back

Despite the alarming headlines, oil retreated from its highs for a simple reason: the physical flow of crude was never seriously disrupted. In a powerful signal of confidence, a Qatari liquefied Natural Gas tanker quietly transited the Strait of Hormuz — the world’s most important energy chokepoint — despite the heightened tensions. That transit reassured traders that supply routes remained open.

On the supply side, other developments pointed to ample, rather than scarce, oil. Saudi Arabia cut its official selling prices to Asia again, though they remain near multi-decade highs, while orders for new oil supertankers surpassed the 2008 boom, raising the prospect of a future glut. Those factors helped cap the rally even as the conflict simmered.

Why it matters for inflation

The oil price is one of the most direct transmission channels for inflation. Higher crude feeds into petrol prices, transport costs and the price of countless goods, and it does so quickly. That is why the energy spike has become central to the inflation narrative now gripping markets.

The concern is acute. A Philadelphia Fed survey projected US consumer price inflation could reach 6% in the second quarter, up sharply from a 2.7% estimate three months earlier, driven largely by the energy shock. Economists expect the European Central Bank to hike rates twice this year, partly because of the Iran conflict’s effect on energy costs. In short, the oil market’s gyrations are not just an energy story — they are an inflation and interest-rate story.

The read-through for ASX energy shares

For Australian investors, the oil price has clear implications. Higher crude generally supports the share prices of ASX-listed energy producers such as Woodside Energy and Santos, whose revenues are tied to oil and gas prices. A sustained move higher in oil would be a tailwind for the sector even as it pressures the broader market through the inflation channel.

There is also a liquefied natural gas dimension that matters for Australia, a major LNG exporter. China’s LNG imports are rising sharply to meet increased electricity consumption during the hot summer months, tightening the global market and supporting prices for Australian producers. The interplay between geopolitical risk, oil and LNG makes the energy sector one of the few potential bright spots on the ASX amid an otherwise cautious backdrop.

Why the Volatility is so unsettling

The whipsaw price action captures the central dilemma facing markets: the Israel-Iran situation is paused, not resolved. Tehran’s warning that it would resume attacks if Israel struck southern Lebanon means the risk of re-escalation is ever-present. Each headline has the potential to move oil by several dollars, injecting volatility into energy markets and, by extension, into inflation expectations and equities.

That uncertainty is precisely why investors cannot simply look through the conflict. A renewed flare-up that disrupted supply through the Strait of Hormuz could send oil sharply higher and deal a fresh blow to the inflation fight, while a durable ceasefire could allow prices to settle and ease the pressure on central banks.

What to watch next

The key signal is whether the ceasefire holds. Any resumption of strikes, particularly near the Strait of Hormuz or Lebanon, would likely trigger another spike. Investors should also watch OPEC supply decisions, Saudi pricing moves, and the trajectory of Chinese LNG Demand. Closer to home, the performance of ASX energy majors will reveal how local investors are positioning for a market caught between geopolitical risk and the threat of an eventual supply glut.

The Strait of Hormuz: the market’s key fault line

At the heart of the oil market’s sensitivity to the Israel-Iran conflict lies the Strait of Hormuz, a narrow waterway through which a substantial share of the world’s seaborne crude and a large Volume of liquefied natural gas must pass. Any genuine threat to shipping through this chokepoint would have an immediate and severe impact on global energy supply, which is why traders watch it so closely.

The fact that a Qatari LNG tanker transited the strait during the recent tensions was therefore deeply reassuring. It signalled that, despite the alarming headlines, the physical flow of energy remained intact and that the parties were not seeking to disrupt the world’s most critical energy artery. That single transit did more to calm oil prices than any diplomatic statement could.

For investors, the Strait of Hormuz is the fault line to monitor. As long as it remains open, oil’s geopolitical premium will tend to deflate after spikes, as it did in retreating from US$98 to US$94. But any move to threaten or close it would send prices sharply higher and inject severe volatility into global markets. It is the single most important variable in the oil market’s response to the conflict.

Balancing geopolitical risk against oversupply

The oil market’s whipsaw reflects a tension between two opposing forces. On one side is geopolitical risk, which threatens to disrupt supply and push prices higher. On the other is a fundamental backdrop that leans towards oversupply: Saudi Arabia cutting its official selling prices to Asia, record orders for new supertankers, and ample production capacity. These bearish fundamentals act as a counterweight to the geopolitical premium.

This balance explains why oil has been so volatile rather than simply spiking and staying elevated. Each geopolitical flare-up pushes prices up, but the underlying oversupply pulls them back down once the immediate threat passes. For investors in energy stocks, this dynamic means the sector’s fortunes are caught between two powerful, opposing forces. The direction oil takes from here will depend on which force prevails — a renewed escalation that disrupts supply, or a durable ceasefire that allows the bearish fundamentals to reassert themselves.