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By July 14 2015
The Marcellus Shale put Pennsylvania on the map as a gas-producing state, but other rock layers have the potential to keep it there far into the future.
Drillers have sought unconventional well permits for 12 geological formations other than the Marcellus, according to state records compiled and organized by MarcellusGas.org. The state Department of Environmental Protection has issued permits for about 900 wells, site developer Carl Hagstrom said. Most of those are in the western part of the state; about 520 of those have been drilled.
Other than the Marcellus, which has more than 15,000 well permits, the most popular target formations in Pennsylvania are the Utica Shale with 258 permits, the Burket/Geneseo Shale with 246 permits and the Point Pleasant Shale with 159 permits. Although sometimes listed separately, the Point Pleasant is technically considered part of the Utica, according to a presentation by the Pennsylvania Geological Survey.
Read the full article – Other shales than Marcellus drawing industry attention