REFINERY MARGIN TRACKER: USGC refinery margins gain despite higher crude prices By admin Posted December 13, 2021 In In the News REFINERY MARGIN TRACKER: USGC refinery margins gain despite higher crude prices2021-12-132021-12-13/wp-content/uploads/liberty-petroleum-icon-logo2.pngLiberty Petroleum Corp/wp-content/uploads/liberty-petroleum-icon-logo2.png200px200px US refinery margins trended higher for the week ended Dec. 10, as crude prices rose…