Oil firms lead U.K. stocks lower By: MarketWatch January 07, 2013 at 06:01 AM EST Most U.K. stocks decline, with oil firms leading losses on the back of lower oil prices, while banks rally after news of relaxed capital rules. Read More >> Related Stocks: BP Plc ADR Barclays Plc ADR Bhp Billiton Ltd ADR HSBC Holdings Plc ADR Lloyds Banking Group Plc ADR Rio Tinto Plc ADR Royal Bank Scotland Group Plc Royal Dutch Shell Cl B ADR