HARRISBURG- Pennsylvania’s new “impact fee” on the booming natural gas drilling industry is expected to generate $224.5 million from wells in 2014, up 10 percent over last year’s amount. The Corbett administration said today, the projection is based on Pennsylvania Public Utility Commission data. A two-year-old state law imposes a 15-year fee on companies drilling into the Marcellus Shale formation. The annual fee for each horizontally drilled well is between $5,000 and $60,000, depending on the price of natural gas and age of the well. Vertical wells are assessed a smaller fee.