A change to the North Sea Brent crude oil futures contract will alter the way prices for Brent futures are compared to futures prices for West Texas Intermediate crude oil. Beginning Jan. 29, the Brent contract will expire, or rollover to the next month, approximately two to three weeks before expiration of the WTI contract for delivery in the same month. Prior to the change, the Brent contract rollover was only five to seven days ahead of the WTI rollover.
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