The FTSE 100 advanced 0.8% on Tuesday, extending Monday’s 0.6% gain to deliver its first consecutive rise since the outbreak of war in Iran. Oil prices retreated from their intraday peaks but remained elevated at levels likely to stoke inflation worries as the conflict persists. Energy giants Shell and BP each added around 1.7%, while major lenders HSBC, Barclays, Lloyds and NatWest rose between 1% and 1.5%. Standard Chartered outperformed the sector, jumping more than 3.5%. Other blue-chip names also lent support, with Rolls-Royce up 1.5% and Rio Tinto 0.9%, while AstraZeneca and Unilever were little changed. On the downside, GSK slipped about 1%, acting as a drag on the index.