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The Integrity Helpline

Marathon Petroleum Corporation's (MPC) Integrity Helpline is a resource for reporting suspected unethical or illegal activity and also serves as a platform for advice regarding ethics and behavior in the workplace.

The Integrity Helpline is available 24 hours a day, 365 days per year. Every effort is made to respond to each inquiry or report of a suspected violation with an answer or action taken by the next business day. Anonymous reports are assigned a case number to identify the inquiry or report.

MPC does not allow retaliation against anyone who reports concerns in good faith.

There are two options for initiating a report or inquiry, a toll-free telephone number or via the website: