Without fracking, Obama’s war on coal would be impossible. The large increase in natural gas production have given him cover for shutting down the burning of coal in the US. Prior to the fracking boom, he had to rely on imaginary green energy.
About a year ago he changed tack. He declared natural gas (and thus fracking) to be green, and created a strategy which would move burning of US coal overseas and thus give him a way to pretend that he was reducing CO2 emissions.