Canadian National Railway Co. shut its main line linking western and eastern Canada after an eastbound train carrying crude oil derailed in Ontario. The train of 100 cars, all carrying crude from Canada’s oil-producing region of Alberta to eastern Canada, derailed just before midnight Saturday in a remote and wooded area about 30 miles (48 kilometers) north of Gogama, Ontario, spokesman Patrick Waldron said in an e-mail. About 18 freight trains a day use the line, he said. A total of 29 cars were involved in the incident and seven caught fire. The remaining 71 cars were moved from the site, Waldron said. Some oil was spilled. Shipments scheduled along the affected corridor will be delayed by at least 24 hours, the company said. Canadian oil producers have grown dependent on shipping crude by rail as pipeline capacity has become constrained. The shutdown happened as locomotive engineers […]