Brent crude oil surpassed $117 a barrel on Friday, marking its highest level in more than six months. The price increase of roughly 3.5% reflects growing concerns about potential US military action against Iran and Iranian threats of retaliation targeting Gulf refineries and datacentres.

The jump represents the market's response to escalating tensions in the Middle East. Oil traders price in the risk that conflict could disrupt energy supplies from a region that remains critical to global oil production and refining capacity.

Tehran's stated intention to attack Gulf infrastructure if struck by the US creates a direct supply chain threat. Refineries damaged or taken offline would reduce the region's ability to process crude into fuel markets depend on. Datacentres, though less directly tied to energy, signal Iran's willingness to target broader economic infrastructure.

The $117-plus level last occurred in April, indicating the current geopolitical risk premium rivals conditions from earlier in the year. Energy markets remain sensitive to any news from the Persian Gulf, where the US maintains significant military presence and where Iran possesses both conventional military capacity and asymmetric options through proxy forces.