One of the criticisms levied against hydraulic fracturing, particularly during recent periods of drought, is the amount of water used in the process. However, energy companies are seeking to reduce water use during hydraulic fracturing, even as research shows more water is used in other activities. The numbers put things into perspective. The amount of water used to frack a well varies, but most reporting entities put the figure in a range of about 3 to 6 million gallons of water. In Pennsylvania, the average amount of water per well is about 4.4 million gallons, according to State Impact Pennsylvania,...