Crude oil futures extend gains after 4-day rally with sentiment still firm

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Crude oil futures were higher in mid-morning Asian trade April 19 as sentiment remained firm after a four-day rally on growing concerns over the possibility of a EU-wide ban on Russian oil imports and Libyan supply disruptions. At 10:17 am Singapore time (0217 GMT), the ICE June Brent futures contract was up 38 cents/b (0.34%) from the previous close to…