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Premcor Refinery

Blue Island, Illinois

The Premcor refinery site occupies nearly 156 acres flanking the southwestern edge of Blue Island. Premcor-owned parcels are within an area bounded to the north and east by 127th St. and a northwest/ southeast railroad line, to the south by the Calumet Sag Channel and to the west by an industrial area. Formerly known as the Clark-Blue Island Refinery, refining operations began at the site with the Great Lakes Refinery in the mid-1920s and continued until Premcor decided to close the refinery in 2001.