REFINERY MARGIN TRACKER: California demand drives USWC margins higher By admin Posted May 3, 2021 In In the News REFINERY MARGIN TRACKER: California demand drives USWC margins higher2021-05-032021-05-03/wp-content/uploads/liberty-petroleum-icon-logo2.pngLiberty Petroleum Corp/wp-content/uploads/liberty-petroleum-icon-logo2.png200px200px Anticipation of California’s post-coronavirus pandemic reopening combined with lower regional refinery runs and inventories are…