Oil prices jumped to a one-month high as the United States military reimposed its blockade on Iranian ports, triggering a wave of retaliatory missile strikes across the Middle East and threatening the flow of crude through one of the world’s most critical energy chokepoints.
Benchmark Brent crude rose above $86, up from just over $72 before hostilities began in late February and well above the sub-$76 level seen last month when a ceasefire deal appeared within reach. WTI is back above $80, having sat below $70 following the MOU.
What happened?
The US Central Command confirmed this week that it had reinstated its blockade of Iranian ports after lifting the measure in mid-June following an interim ceasefire agreement. The blockade covers the entire Iranian coastline, including ports and oil terminals, and applies to all vessels regardless of flag.
US forces conducted five hours of strikes on Monday evening, the third consecutive night of attacks against Iranian coastal defence systems, missile and drone sites, and maritime capabilities around Abu Musa, Bandar Abbas, Bushehr, Chahbahar, Jask, and Konarak.
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Iran responded with force across the region. The Islamic Revolutionary Guard Corps said it targeted a US airbase in Jordan with ballistic missiles, while Bahrain, home to the US Navy’s 5th Fleet, sounded missile alert sirens three times as Iranian attacks continued into Tuesday morning.
Why does it matter?
If you have been under a rock for recent months, and have not heard of the Strait of Hormuz, it carries roughly a fifth of the world’s daily oil and gas traffic, delivering more than 15 million barrels of fuel to global markets worth at least $1.2 billion each day. Any disruption to this narrow waterway sends ripples through commodity markets and inflation outlooks worldwide.
The oil surge comes on the same day US inflation data showed a softer-than-expected June consumer price index reading, offering brief relief to markets hoping for Fed rate cuts. That reprieve may prove short-lived if oil holds above $80 and begins flowing through to petrol bowsers and freight costs.
Australian portfolios with exposure to energy, mining, or gold trading may see increased volatility as traders weigh competing forces: higher commodity prices versus slower global growth if the blockade persists.
What comes next?
Oil prices from here depends on how long the blockade lasts and whether Iran continues escalating attacks on shipping and US allies in the region. If the standoff stretches into weeks, traders may begin pricing in a sustained supply risk premium.
The US Central Command said strikes will continue imposing costs on Iranian forces and degrading their ability to attack civilians and commercial shipping. That suggests the military campaign has room to intensify rather than wind down.
Gold has already begun pricing in some of the uncertainty, with prices holding $4,000 as geopolitical risk offsets recent retracement. Portfolios with commodity exposure may face competing pressures: stronger oil and metals prices versus weaker growth signals if the conflict drags on.
The next few trading sessions should clarify whether markets view this as a temporary flare-up or the beginning of a sustained disruption to global energy flows.
