LONDON (MarketWatch) -- European shares edged lower on Wednesday, with Barclays /quotes/comstock/23s!a:barc (UK:BARC 334.10, -5.00, -1.47%) shares losing 1.7% after a report that the lender could be thinking about buying a U.S retail bank. Earnings were also playing a part in the declines, with German utility giant E.On down 0.5% and oil exploration firm Tullow Oil /quotes/comstock/23s!e:tlw (UK:TLW 1,252, -33.00, -2.57%) down 2% after posting results. The U.K. FTSE 100 index declined 0.2% to 5,591.58, the German DAX index lost 0.2% to 5,876.43 and the French CAC-40 index declined 0.1% to 3,905.76.






