An aerial view of the cleanup site near Tioga, N.D.
The cleanup site after a Tesoro Logistics LP pipeline spilled more than 20,000 barrels of crude oil into a wheat field near Tioga, N.D., is pictured on Sunday, Oct. 13, 2013. The spill was originally discovered on September 29, 2013. must credit: Tanner Overland, Overland Aerial Photography
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