Horizontal Shale
Horizontal Shale and hydraulic fracturing, the drilling and frac processes in the Barnett, Haynesville, Bakken, Floyd, Fayetteville, Woodford, Huron, Devonian, Marcellus, Chattanooga, Antrim, Pearsall, Lewis, Mancos, Mowry, Miocene, New Albany, Haynesvill