"Companies in drought areas have begun looking at liquefied petroleum gas gel for hydraulic fracturing as a way to reduce dependence on already-scarce water supplies.

Gas gel presents a potentially viable replacement to the millions of gallons of water used in the fracking process at each well site, said John McLennen, an associate professor of chemical engineering at the University of Utah.

Also referred to as dry fracking, the process does not involve water. Instead, highly pressurized gas is injected directly into a formation to crack the rock."

Allison Dyer Bluemel reports for Energy Pipeline in the Greeley Tribune December 4, 2014. [2]