Marathon Petroleum reported higher-than-expected fourth-quarter earnings, driven by strong performance in its midstream and ...

Ohio-based Marathon Petroleum Corp. is a petroleum refining company, which is engaged in refining, marketing, retailing, and transporting petroleum products primarily in the United States.

Canadian oil producers would absorb most of the cost of U.S. tariffs, while a smaller share of the added cost would be passed on to U.S. consumers. Marathon Petroleum Chief Executive Maryann Mannen ...