The City of London is bracing for a fresh wave of volatility this morning after reports emerged of American military strikes against Iranian targets. The news, which broke in the early hours, has sent a tremor through global energy markets, with Brent crude spiking over 5% in pre-open trading. For a financial community still nursing the scars of the 2022 energy crisis, this is an unwelcome flashback.
Let us be clear: this is not about geopolitics or moral posturing. It is about the bottom line. Iran sits on the world's fourth-largest proven oil reserves and controls the Strait of Hormuz, through which a fifth of global oil supply passes daily. Any escalation in the region, particularly one involving direct US-Iran military engagement, risks a repeat of the 2019 Abqaiq attack, when a single drone strike knocked out half of Saudi Arabia's production.
The market's calculus is simple. Higher oil prices mean higher input costs for every UK business, from logistics to manufacturing. It means a fresh squeeze on household budgets already stretched by stubborn inflation, and it puts the Bank of England in an impossible position. Having just signalled a cautious pivot towards rate cuts, Threadneedle Street now faces the spectre of a supply-side shock that could re-ignite price pressures. The gilt market will be watching the UK's energy-intensive sectors with hawkish eyes.
Capital is already on the move. The safe-haven dollar is strengthening, putting further pressure on the pound, which had only recently stabilised above $1.26. UK gilts, despite their recent yield allure, may see foreign buyers demand a risk premium if the conflict widens. The typical government response – a combination of strategic reserve releases and diplomatic back-channels – is unlikely to soothe investors who remember that Western reserves are at their lowest in decades.
I must also note the fiscal dimension. The Chancellor's Autumn Statement assumptions on growth and borrowing were predicated on a benign energy outlook. If oil sustains above $90 a barrel, those forecasts will unravel. Higher fuel costs mean lower disposable income, weaker GDP, and a larger deficit. The irony is not lost on this desk: a Conservative government, ideologically committed to sound money, may find itself forced into yet more spending to cushion the blow.
Of course, the headline numbers are dramatic. But for the seasoned observer, the real story lies in the second-order effects. British Airways and EasyJet will hedge furiously. Petrochemical firms like Ineos will recalculate margins. And every pension fund manager with exposure to UK equities will be reassessing their risk models. This is not a shock to be weathered with a stiff upper lip. This is a test of the system's resilience.
Let us hope the situation de-escalates before the real damage is done. But as any trader will tell you, hope is not a strategy.
