IAG, oil stocks lift FTSE 100 By: MarketWatch April 24, 2012 at 04:34 AM EDT U.K. stocks are mostly higher on Tuesday, with International Consolidated Airlines jumping after a broker upgrade and oil firms adding to the positive sentiment. Read More >> Related Stocks: BAT BP Plc ADR Barclays Plc ADR HSBC Holdings Plc ADR International Cons A ADR Lloyds Banking Group Plc ADR Royal Dutch Shell Cl B ADR Royal Dutch Shell Plc ADR