TY - RPRT TI - Trends in hydraulic fracturing distributions and treatment fluids, additives, proppants, and water volumes applied to wells drilled in the United States from 1947 through 2010: data analysis and comparison to the literature AU - Tanya J. Gallegos AU - Brian A. Varela PY - 2015 DO - 10.3133/sir20145131 UR - https://pubs.usgs.gov/publication/sir20145131 ID - sir20145131 ER -