Natural Gas in West Virginia
The gas fields of West Virginia are part of the Appalachian or Eastern gas field, continuous with the fields of Pennsylvania on the north, Kentucky on the south, and Ohio on the west. Modes of occurrence and accumulation are similar and the producing horizons are common to those in adjoining states. Gas is produced from rocks of Pennsylvanian, Mississippian, and Devonian age, principally sandstones, limestones, and shales. The fields are west of the Allegheny Front and are related to anticlines and synclines paralleling the front northeast and southwest. Minor cross folds seem to be an important factor in accumulation. Gas occurs in synclines, on the flanks of anticlines, and on the crests. It seems probable that only the most pronounced surface structure represents structure with depth.