A professor and group of student researchers at the University of Wisconsin at Eau Claire claim they found elevated particulate levels associated with frac-sand mining. Although their studies didn’t ...

Frac sand production has increased seven-fold in the past decade, according to the United States Geological Survey. Thomas Dolley, a mineral commodity specialist at the USGS, said he can’t divulge ...

MADISON (AP) — Some energy producers are still willing to pay more for Wisconsin’s high-quality fracking sand despite increasing competition from Texas producers. Mining industry publications estimate ...

Despite new competition, Wisconsin’s frac sand industry has come roaring back from a slump that idled mines two years ago, fueled by a continued surge in domestic crude oil production. “They can ...