Rising energy prices from the Middle East conflict represent the dominant driver behind market-implied odds favoring a 3.4-3.6% September UK CPI annual rate. August CPI stood at 3.1%, and traders price in a modest sequential pickup as higher wholesale gas and oil costs pass through to household energy bills and motor fuels ahead of the October 21 ONS release. Bank of England assessments and independent forecasts now project CPI climbing toward 3.7% in 2026 Q4, with the Ofgem price cap expected to rise about 4% this autumn. Broader domestic pressures remain contained, with wage growth and services inflation showing limited acceleration, supporting the narrow 3.4-3.6% band as the consensus outcome while leaving room for upside surprises if energy futures continue climbing.