Group 3 CBOB Basis Up 7.5cts as Midwest Premiums Expand
8/13 3:56 PM
Group 3 CBOB Basis Up 7.5cts as Midwest Premiums Expand Barani Krishnan DTN Refined Fuels Market Reporter SECAUCUS, NJ (DTN) -- The cash basis for Midwest Group 3 CBOB strengthened for a second straight day Thursday (8/13) as persistent supply tightness overshadowed weakness in benchmark futures markets. Group 3 CBOB basis surged 7.5cts on the session to trade at a 17.5cts premium over September NYMEX RBOB futures. Chicago CBOB basis found upward momentum too, strengthening 4cts on the day to trade at a 3cts premium to the same futures benchmark. The CBOB basis for both the Buckeye Complex and Wolverine pipelines, meanwhile, weakened by 2cts each to also trade at a premium of 3cts against September RBOB. The changes came as NYMEX gasoline pulled back in Thursday's trade. September RBOB fell $0.0309, or 0.98%, to settle at $3.1228 gallon amid demand downgrades for oil from international energy agencies IEA and OPEC that offset the impact of supply blockades in the Strait of Hormuz. Midwest CBOB differentials are fundamentally supported by U.S. Energy Information Administration data released on Wednesday (8/12) that showed PADD 2 gasoline stocks declining by 400,000 bbl to 43 million bbl during the week ended August 7. Ongoing disruptions at the Wood River refining hub and throughput limits at the Lamar pipeline junction have also put a floor under Midwest CBOB. (c) Copyright 2026 DTN, LLC. All rights reserved.
 
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