Alva Review-Courier -

Pennsylvania's moribund drilling industry, which has struggled with persistently low prices and a dearth of infrastructure to get its product to market, is showing signs of life.

Natural gas producers drilled 397 shale wells through the first six months of 2017, more than twice the number they sank in the same period last year. About 20 additional drilling rigs are exploring for natural gas. Fracking crews are suddenly in short supply.

While the pace remains much slower than it was during the industry's boom years earlier this decade, when a drilling frenzy transformed sleepy towns and rural a...