Construction Workers Shift Change at Oil Refinery. They are expanding the refinery to process oil from Canada's tar sands.

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Detroit, Michigan - An African-American crossing guard stops traffic as Caucasian construction workers leave the Marathon Petroleum refinery. They are working on the Heavy Oil Upgrade Project, which will allow the refinery to process heavy crude oil from Canada's tar sands.

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Size: 4916px × 2996px
Location: Detroit, Michigan USA
Photo credit: © Jim West / Alamy / Afripics
License: Licensed
Model Released: No

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