REFINERY MARGIN TRACKER: Refinery margins fall as seasonal work ends; omicron remains an unknown2021-11-292021-11-29/wp-content/uploads/liberty-petroleum-icon-logo2.pngLiberty Petroleum Corp/wp-content/uploads/liberty-petroleum-icon-logo2.png200px200px
Global refining margins showed a weaker trend for the week ended Nov. 26 as refiners…