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Fracking_OIL. Hydraulic fracturing. The first experimental use of hydraulic fracturing was in 1947, and the first commercially successful applications were in 1949.

Hydraulic fracturing

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.[4][5] Frac job in progress. EPA Speaks up on Fracking. Energy expert raises risks of fracking. Eco-Terrorists: Fed up with fracking.