Lestz eventually developed a fracking process that substitutes propane, or liquid petroleum gas (LPG), for water. Chevron wasn't interested in LPG fracking, Lestz said. But in 2006, a business friend ...
Fracking, or hydraulic fracturing, is a process in which oil and natural gas are extracted from underground rock formations. Fracking provides many benefits but has some costly side effects. Fracking ...
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