Large volumes of natural gas may be technically recoverable from the Devonian shales of Kentucky, Ohio, and West Virginia. The technically recoverable gas from the Huron, Rhinestreet, Cleveland, and Marcellus intervals is estimated to range from 26 Tcf to 82 Tcf, depending on the success of new gas extraction technologies and practices. The total estimated in-place Devonian shale gas of this tri-state area is 394 Tcf. While much of the resource is in the Huron shale interval, significant portions are located in other thinner, yet organically rich, shale units that have experienced less development to date. This study represents the most current appraisal of Appalachian Devonian shale gas potential, and serves as an update of the 1980 National Petroleum Council work for this tri-state area.

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