GEOTHERMAL ENERGY could also be approaching its Mitchell second. George Mitchell, a scrappy impartial oilman, is called the daddy of fracking. Almost three many years in the past, he defied Large Oil and the traditional knowledge of his trade by making sensible the hitherto uneconomic strategy of pumping liquids and sands into the bottom to pressure out gasoline and oil from shale rock and different tight geological formations. The large enhance in productiveness that resulted, generally known as the shale revolution, has remodeled the worldwide hydrocarbon enterprise.