U.S. lawmakers have introduced a bipartisan bill that would ban imports of petroleum products, liquefied natural gas and coal from Russia over its assault on Ukraine. The White House, however, opposes such a ban, citing worries over supply issues and price hikes at the gas pump. Germany and other European nations continue to import large amounts of natural gas from Russia, despite EU sanctions. Last week, German energy giant E.ON said it had no plans to shut down the flow of gas from the Nord Stream 1 pipeline.