Miles of pipe ready to become part of the Keystone Pipeline are stacked in a field near Ripley, Okla, Feb. 1, 2012.
Miles of pipe ready to become part of the Keystone Pipeline are stacked in a field near Ripley, Okla, Feb. 1, 2012. AP
Miles of pipe ready to become part of the Keystone Pipeline are stacked in a field near Ripley, Okla, Feb. 1, 2012. AP