A town in Pennsylvania that was at the heart of the state's oil boom is now a grassy field with a visitor center for tourists ...

Plugging a gas or oil well is not cheap. While it depends on factors such as the location and depth of the well, an average ...

In the dense forests of northwestern Pennsylvania, hundreds of thousands of retired oil and gas wells—some dating back to the mid-1800s, long before modern construction standards—dot the landscape, ...

How much toxic oil and gas waste is produced in Pennsylvania every year, and where does it end up? Despite state efforts to track it, there’s no way to know for sure. For more than a decade, ...

Researchers surveyed 18 abandoned wells, like this one, and found that they not only leak natural gases that contaminate the atmosphere but also release methane into the adjoining water table. Some of ...