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Wikipedia entry on hydraulic fracking
George Mitchell, inventor of modern-day fracking
Instance of industry paying for investigations into fracking and water quality:
“The new research led by Wyoming officials would be funded at least in part by a $1.5 million grant from Encana Corp.’s U.S. oil and gas subsidiary, which owns the Pavillion gas field. A final report is due by late 2014. ” — The Vindicator