'Coal bed methane', for purposes of section 317 of this chapter and IC 14-37, means gaseous substances of whatever character lying within or emanating from:(1) unmined coal seams, either naturally or as a result of stimulation of the coal seam;(2) the void created by mining out coal seams; or(3) the gob created by longwall or other extraction methods of coal mining.As added by P.L.78-2010, SEC.1. Amended by P.L.140-2011, SEC.1.
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