Nearly a dozen shipments of oil coming out of North Dakota were mislabeled by oil producers, potentially creating hazardous risks, federal regulators have found.
The Pipeline and Hazardous Materials Safety Administration, which oversees the transportation of petroleum, said samples taken from 11 out of 18 truck shipments en route to rail loading stations were misclassified.
The companies responsible for the errors were Hess Corp., Whiting Oil and Gas Corp., and Marathon Oil Co.
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