BoE Freezes Bank Rate at 3.75 % and Re-opens Hike Option After Iran War Oil Shock

Energy wars have hijacked monetary policy before: the 1973 Arab oil embargo forced the BoE to lift Bank Rate from 9 % to 13 % within five months, and the 1990 Gulf War added a full percentage point to UK CPI by mid-1991 despite a recession. Today’s Iran conflict reprises that supply-shock pattern, underlining a long-running system dynamic: central banks designed to manage demand are repeatedly whiplashed by geopolitically-driven commodity squeezes. Since 2022 (Russia-Ukraine) inflation targeting regimes have oscillated between easing on weak growth and tightening on energy shocks—pointing to a structural clash between globalised fossil-fuel supply chains and national price-stability mandates. Over a 100-year horizon this moment may be a marker in the gradual transition away from hydrocarbons and toward policy frameworks that explicitly separate imported-energy inflation from domestic overheating. If the BoE ultimately hikes into a stagnating economy, it risks echoing the 1976 sterling crisis—another reminder that credibility concerns can trump cyclical weakness. Whether markets are over-pricing future hikes or not, the episode highlights how monetary sovereignty remains vulnerable to a single strategic chokepoint like the Strait of Hormuz—an enduring lesson for the century ahead.