US-Iran Strikes Fuel 5% Oil Rally; RBNZ Hikes to 2.75% as Bond Rout and Energy Surge Define EU Open

The Quick Take

• Crude oil futures surged at least 5% after US forces struck Iranian military targets and Iran retaliated with missiles and drones on US regional bases.
• The Reserve Bank of New Zealand raised its OCR by 25bps to 2.75% as expected but offered limited hawkish forward guidance.
• European bond markets extended their selloff at the EU open as rising energy prices amplify global inflation concerns.

EU market open on September 2 was dominated by the fallout from a fresh exchange of military strikes between the US and Iran, with crude oil futures rallying at least 5% on top of prior gains as markets priced in Middle East supply-risk premium. Simultaneously, the Reserve Bank of New Zealand raised its Official Cash Rate by 25 basis points to 2.75%, in line with expectations, though restrained forward guidance disappointed hawks expecting a more aggressive path. European bond markets extended an existing rout as the oil surge raised the specter of second-round inflation effects across the eurozone.

The oil spike is a direct earnings tailwind for energy majors including BP, Shell, TotalEnergies, ExxonMobil, and Chevron, while creating a simultaneous headwind for aviation, shipping, and petrochemical sectors whose input costs track crude prices. If the US-Iran conflict escalates beyond the current exchange, Brent crude could sustain above a structurally elevated floor, keeping energy sector earnings beats and broader inflation volatility elevated. The NZD underperformance following RBNZ's cautious tone reinforces the pattern of central bank hawkishness disappointing markets expecting more aggressive forward guidance to protect currencies in a high-yield-gap world.

Watch for escalation signals from the US-Iran military exchange: any disruption to Strait of Hormuz shipping lanes—through which approximately 20% of global oil supply passes—would trigger a step-change in crude pricing beyond the current risk-premium move. Monitor the RBNZ's next meeting for whether the 25bps move begins a sustained hiking cycle or was a one-off correction. The European Central Bank's response to the oil-driven inflation spike will be the key policy variable determining whether the European bond rout accelerates into credit spread widening or stabilizes as policymakers signal a measured pace of additional tightening.

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