The Trump administration has indefinitely delayed a proposed overhaul of U.S. biofuels policy aimed at reducing costs for the oil industry, under pressure from corn state lawmakers who worry the move would undermine demand for ethanol, according to two sources familiar with the matter.  The White House had been poised to announce the reforms to the U.S. Renewable Fuel Program early this week after hosting months of difficult negotiations between representatives of the key constituencies. “The announcement won’t be happening,” one of the sources said. The second source said the deal had apparently collapsed. Both sources asked not to be identified discussing the matter. The RFS requires oil refiners to mix increasing volumes of biofuels like ethanol into the nation’s […]