Definition of "fraccing"

I have also heard from geologists who say they spell it fraccing, and one who says it's fracting with a silent t.

2009 June 25, Ed Quillen, “Fracking, fracing or fraccing?”, in High Country News‎, Paonia, CO

Fraccing is the process of creating cracks in underground coal seams to increase the flow and recovery of gas or oil out of a well.

2012, Queensland Government, “Hydraulic fracturing (fraccing) in CSG wells”, in Department of Environmental and Resource Management‎, archived from the original on 1 April 2011

Moreover, the industry has a great deal of experience with fraccing. More than a million wells have been fracced in the United States since the first frac job six decades ago.

2012 January 3, Ralph Benko, “Daniel Yergin's The Quest”, in Forbes‎

Fraccing fluids contain proppants that forced into the natural fractures of fissures of the rock under pressure.

2014, Alireza Bahadori, Natural Gas Processing: Technology and Engineering Design‎ (Technology and Engineering), Gulf Professional Publishing