Canadian Pacific Railway said it will provide exclusive rail service to Unimin Corp to transport frack sand from a Wisconsin facility the industrial mineral producer expects to open in 2013.

The new facility in Tunnel City will produce two million tons of frack sand annually - used in the drilling industry in hydraulic fracturing - for markets in North Dakota, Texas, Colorado and elsewhere.

Financial terms of the multi-year deal with Unimin, a long-standing CP customer, were not disclosed. (Reuters)