REFINERY MARGIN TRACKER: Refinery snag, tighter inventories buoy US Midwest coking margins By admin Posted July 26, 2021 In In the News REFINERY MARGIN TRACKER: Refinery snag, tighter inventories buoy US Midwest coking margins2021-07-262021-07-26/wp-content/uploads/liberty-petroleum-icon-logo2.pngLiberty Petroleum Corp/wp-content/uploads/liberty-petroleum-icon-logo2.png200px200px Stronger US Midwest refining margins were supported by tighter inventories, rising regional demand and the…