BP, Standard Chartered higher in London By: MarketWatch May 31, 2011 at 05:24 AM EDT London stocks return from a long holiday weekend to trade higher, led by heavyweight oil stocks BP and Royal Dutch Shell, along with banks like Standard Chartered. Read More >> Related Stocks: BP Plc ADR Barclays Plc ADR HSBC Holdings Plc ADR Lloyds Banking Group Plc ADR Royal Dutch Shell Plc ADR