European stocks fell on Tuesday amid investor jitters a day new debt talks between Greece and its creditors and as falling oil prices pulled energy stocks lower. In Zurich, Credit Suisse Soared after announcing that CEO Brady W. Dougan will step down at the end of June after eight years at the helm and be succeeded by Tidjane Thiam, currently CEO of Prudential plc. Credit Suisse board chairman Urs Rohner noted that Thiam led Purdential in challenging times, and said his extensive international experience provides a “firm foundation” for leading Credit Suisse. In London, Cairn Energy fell on plans to ramp up its exploration budget this year to $185 million following promising discoveries in Senegal. Oil and gas stocks overall also continue to be hurt by falling oil prices, with Tullow Oil, Ophir Energy and Premier Oil all down in London morning trading.