Oil fell more than 1 percent on Wednesday as the dollar strengthened, while an industry report showing a larger-than-expected rise in U.S. crude inventories also dragged on prices. Crude futures settled up more than 2 percent on Tuesday when the dollar index posted its biggest fall since early October amid soft U.S. data that cast doubts about the underlying optimism on the outlook for the world’s biggest economy. “The key driver for oil prices in the last few days has been currency fluctuations … we had seen some weakness in the U.S.