Legendary Coach Lou Holtz Set to Speak at 2016 Williston Basin Petroleum ConferenceLegendary Coach Lou Holtz Set to Speak at 2016 Williston Basin Petroleum ConferenceLegendary football coach Lou Holtz will be a guest speaker at the 2016 Williston Basin Petroleum Conference, taking place May 24th-26th at the Bismarck Event Center.Matt BinghamMatt Bingham