Energy producers in the Marcellus Shale formation are leasing more and more land above this deeply buried cache of natural gas.
The Marcellus Shale has become a game changer in Pennsylvania gas production.
There's a call among some citizens and environmentalists to do more to oversee natural gas drilling in Pennsylvania.
Nearly 32,000 acres of state forest land in north-central Pennsylvania will be opened up next month to deep gas drilling.
More air pollution problems may be on the way for Pennsylvania, according to a mayor of a small Texas town 50 miles northwest of Dallas.