U.S. oil companies will likely push past 10 percent ethanol and other biofuel content in motor fuels in 2016 after the Environmental Protection Agency (EPA) set levels on Monday that sparked criticism from both sides of the debate over alternative fuel use. The EPA raised the requirements from the May proposal amid higher-than-expected fuel demand, even as it maintained that challenges remain as motor fuels abut a “blend wall” — the saturation point beyond which oil companies say it is hard to use more biofuels without significant infrastructure changes to gas pumps and vehicles. Read more at Reuters…