Group 3 CBOB Basis Climbs 8.5cts, Diverges Midwest Decline
9/02 4:44 PM
Group 3 CBOB Basis Climbs 8.5cts, Diverges Midwest Declines Barani Krishnan DTN Refined Fuels Market Reporter SECAUCUS, NJ (DTN) -- Group 3 CBOB differentials surged Wednesday (9/2) into positive territory, defying broad weakness across Midwest pipeline networks where cash values faced downward pressure following a weekly rise in regional inventory. Group 3 CBOB basis surged by 8.5cts on the day to stand at a premium of 6.25cts gallon over the October NYMEX RBOB contract. The rise extends the physical strength of late in Group 3 CBOB, since NYMEX RBOB's front-month moved to October from September. In contrast, CBOB differentials on the Chicago market weakened by 3.5cts to a discount of 15cts gallon against the October NYMEX benchmark. CBOB differentials on the Buckeye Complex market widened by 3cts to an 11cts gallon discount to October futures, while Wolverine CBOB dropped 7cts on the day to a 15cts gallon discount. In NYMEX trading, October RBOB settled down $0.0313 at $3.1038 gallon. The U.S. Energy Information Administration reported that PADD 2 motor gasoline stocks rose100,000 bbl during the week ended August 28 to a five-week high of 43.4 million bbl. PADD 2 refinery utilization rose to 103.5% last week from 101.8% the prior week, maintaining ample supplies of secondary gasoline blendstock across Midwest markets. (c) Copyright 2026 DTN, LLC. All rights reserved.
 
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