Fuel suppliers will be required to mix 16.93 billion gallons of corn-based ethanol and other renewable fuels into gasoline this year, as part of a long-awaited set of biofuel targets released by U.S. regulators Monday. Oil refiners will have to use 18.11 billion gallons in 2016 based on targets set by the Environmental Protection Agency. The requirements are above ones proposed by the agency in May but are below statutory targets. The levels are part of a program authorized by Congress 10 years ago that requires steadily escalating volumes of biofuels to be blended into the country’s gasoline and diesel fuels. The law, designed to shrink the nation’s dependence on foreign crude and curb greenhouse-gas emissions, has pitted oil companies including Chevron Corp. and Exxon Mobil Corp. that oppose using more biofuels against farmers in the corn-rich Midwest who’ve argued for higher amounts. Ethanol is projected to consume 38 […]