Fracking_OIL. Hydraulic fracturing. The first experimental use of hydraulic fracturing was in 1947, and the first commercially successful applications were in 1949.
As of 2012, 2.5 million hydraulic fracturing jobs have been performed on oil and gas wells worldwide, more than one million of them in the United States. EPA Speaks up on Fracking. Energy expert raises risks of fracking. Eco-Terrorists: Fed up with fracking.