ROSCOE, Pennsylvania — When people think of Washington County, Pennsylvania, they often associate it with the wealthy northern tier of affluent suburbs such as Peters and Cecil townships. But that is only part of the story. If you are from these parts, you know Washington County is both Fox Chapel and West Virginia.

Washington County is the second-largest producer of natural gas among Pennsylvania’s 67 counties and also the second-largest producer nationwide, thanks to the Marcellus and Utica shale formations. It is also one of the so-called “heat counties” that could swing Election Day in less than two weeks.