Gov. Rendell reported this week Marcellus Shale activity is expected to more than double during 2010 according to the natural gas industry. DEP reported issuing 1,984 drilling permits in 2009 and the industry expects to apply for 5,200 permits during 2010. DEP issued 195 Marcellus permits in 2008. DEP said 763 wells were actually drilling during 2009.