REFINERY MARGIN TRACKER: Margins rise as mobility increases on COVID-19 vaccine rollout By admin Posted January 4, 2021 In In the News REFINERY MARGIN TRACKER: Margins rise as mobility increases on COVID-19 vaccine rollout2021-01-042021-01-04/wp-content/uploads/liberty-petroleum-icon-logo2.pngLiberty Petroleum Corp/wp-content/uploads/liberty-petroleum-icon-logo2.png200px200px Refinery margins across the world trended higher for the week to Jan. 1 as the…