Shell weighs on U.K.’s benchmark index By: MarketWatch February 03, 2011 at 05:01 AM EST The U.K.’s benchmark FTSE 100 index drops as earnings from Royal Dutch Shell fall short of expectations. Read More >> Related Stocks: BP Plc ADR Barclays Plc ADR Bt Group Plc Royal Bank Scotland Group Plc Royal Dutch Shell Plc ADR