The U.S. and European Union announced new sanctions Friday that target Russian Arctic and shale-oil projects, which could affect a partnership between Rosneft and Exxon Mobil. Bloomberg News The U.S. joined the European Union in expanding sanctions to target Russian Arctic and shale-oil projects and further limit financing to Russian state-controlled companies, a move to put pressure on Moscow as Ukraine negotiates a long-term peace plan and closer ties to the EU. The energy sanctions announced Friday, widely expected in recent days , will prevent Western energy firms from providing technology and services—other than financial services—to five Russian energy majors’ oil projects in the Arctic, deep offshore fields and shale, the U.S. Treasury Department said. U.S. companies have two weeks to comply with the sanctions, likely meaning an end for now to Exxon […]