Chicago Refined Products Continue to Lead Midwest
11/24 4:44 PM
Chicago Refined Products Continue to Lead Midwest Miguel E. Andujar DTN Refined Fuels Market Reporter DAVENPORT, FL (DTN) -- Chicago refined products continued to anchor Midwest spot pricing through the year, with Wolverine and Buckeye consistently following Chicago's direction. Day-to-day moves remained tightly correlated, although several supply-side events briefly widened spread across the region, according to DTN Energy data. The most pronounced gasoline dislocation occurred during the early-spring maintenance period, when Chicago CBOB moved to a 4.0cts premium to both Wolverine and Buckeye. The peak separation hit on July 7, when Chicago CBOB traded at a 10.0cts discount to front-month NYMEX RBOB futures, while both Wolverine and Buckeye printed 14.0cts discounts. The move was fueled by BP Whiting disruption earlier that week, where flaring and temporary unit rate reductions tightened gasoline supply directly into Chicago. Chicago spot values firmed immediately on the reduced availability, while pipeline-fed Wolverine and Buckeye adjusted more gradually. The premium narrowed back into the typical parity and 1ct range once Whiting stabilized. A year earlier, Chicago held a 0.50cts premium on the same date. Meanwhile, distillates saw a sharper break earlier in the year. On January 24, Wolverine ULSD weakened significantly, posting a 53.8cts discount to front-month NYMEX ULSD futures, while Chicago ULSD settled at a 19.0cts discount, leaving Wolverine 35cts weaker than Chicago. Buckeye ULSD printed a 28.0cts discount, placing it 9cts weaker than Chicago on the same day. At that moment, market participants tied the move to localized rack tightness into Michigan, weather-related winter diesel demand, and uneven terminal resupply. Typically, Chicago--Wolverine ULSD spreads average 1 cent, making the late-January divergence one of the most significant of the year. Against the futures market, regional structures for the most part reflected expected seasonal behavior. CBOB traded between a discount and premium to front-month RBOB futures, shaped by Chicago blending economics, refinery activity and Midwest demand. ULSD basis likewise traded as either a discount or premium to front-month NYMEX ULSD futures, sensitive to PADD 2 rack tightness, weather-driven diesel pulls and pipeline timing. Latest DTN Energy assessments show a more balanced structure heading into late fall. On November 21, Chicago, Wolverine and Buckeye CBOB all traded at a 22cts discount to front-month RBOB, fully aligned and tighter than the same date last year when Chicago carried a firmer differential. ULSD showed a similar consolidation: Chicago and Wolverine both settled at a 27.5cts discount, while Buckeye traded at a stronger 25.0cts discount, leaving Buckeye 2.5cts above the other two hubs, a narrower structure than observed a year earlier. Looking ahead to December, market participants should expect a stable Chicago-led pricing structure. Regional refineries are operating steadily; pipelines into Michigan and Ohio are flowing normally, and rack conditions appear well-supplied heading into early-winter demand. Any brief widening is expected to stem from familiar Midwest catalysts a Refinery outage, cold-weather diesel demand, or temporary pipeline scheduling shifts but nothing currently points to a sustained break. (c) Copyright 2025 DTN, LLC. All rights reserved.