Hi-Crush Partners LP is an integrated producer, transporter, marketer and distributor of monocrystalline sand, a specialized mineral that is used as a proppant to manage the recovery rates of hydrocarbons from oil and natural gas wells. Its reserves consist of northern white sand, a resource in Wisconsin and limited portions of the upper Midwest region of the United States. It owns and operates a portfolio of sand facilities with on-site wet and dry plant assets, including direct access to the United States railroads for distribution to in-basin terminals. It owns and operates a network of strategically located terminals and an integrated distribution system throughout North America, including its PropStream integrated logistics solution, which delivers proppant into the blender at the well site. The Company's Blair facility, as of December 31, 2016, contained 117.7 million tons of proven recoverable reserves of frac sand meeting API specifications.