CNBCEurope ekes out gains despite oil slip; Roche jumps 4%CNBCEuropean stocks eked out gains by Friday's close as investors kept an eye on the renewed decline in oil prices, ahead of comments from U.S. Federal Reserve Chair Janet Yellen. The pan-Europe …

CNBCEurope ekes out gains as oil slips; Roche jumpsCNBCEuropean stocks eked out gains by Friday's close as investors watched the renewed decline in oil prices, ahead of comments from U.S. Federal Reserve Chair Janet Yellen. The pan-European Stoxx 600 i …