Polaris Pipeline outage impacts Canadian diluent flow, tightening WCS discount By admin Posted September 1, 2020 In In the News Polaris Pipeline outage impacts Canadian diluent flow, tightening WCS discount2020-09-012020-09-01/wp-content/uploads/liberty-petroleum-icon-logo2.pngLiberty Petroleum Corp/wp-content/uploads/liberty-petroleum-icon-logo2.png200px200px An outage of the Polaris Pipeline that moves diluent from Edmonton to Canadian oil sands…