An aerial view of a crude oil storage facility at WTI's physical delivery point in Cushing, Oklahoma. Limited capacity at Cushing was one of the reasons behind the benchmark's plunge into negative territory in April. AFP
An aerial view of a crude oil storage facility at WTI's physical delivery point in Cushing, Oklahoma. Limited capacity at Cushing was one of the reasons behind the benchmark's plunge into negative terShow more

Oil rounds off fourth week of gains as supply remains constrained




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