European stocks push higher in global rally

European equities charged higher Tuesday, boosted by Asian gains, rising oil prices and news of buoyant German investor confidence. Crude oil continued to climb despite lingering disappointment over last weekend's failed Doha oil output talks. In the eurozone, Frankfurt rallied 2.2 percent as a key survey, the German investor confidence index calculated by the ZEW economic institute, showed an increase by 6.9 points to 11.2 points in April.