"Amid pressure from neighborhood groups and Mayor Rahm Emanuel, BP later this year will halt shipments of dusty petroleum coke to Chicago sites across the border from its giant Whiting, Ind., refinery.

A BP spokesman on Wednesday confirmed that by mid-year the company will stop sending petroleum coke to two sites along the Calumet River owned by KCBX Terminals, a firm controlled by industrialists Charles and David Koch. But BP would not say where its high-carbon, high-sulfur material will end up instead.

The company's sprawling Indiana refinery is the world's second-largest source of petroleum coke, or petcoke, a byproduct of the Canadian oil boom that is piling up in huge mountains across the Midwest."

Michael Hawthorne reports for the Chicago Tribune February 18, 2015. [2]