Midwest ULSD Discounts Narrow on Renewed Iran Attack
6/25 4:40 PM
Midwest ULSD Discounts Narrow on Renewed Iran Attack Barani Krishnan DTN Refined Fuels Market Reporter SECAUCUS, NJ (DTN) -- Midwest ultra-low sulfur diesel (ULSD) basis differentials narrowed Thursday (6/25), aligning with rallying NYMEX futures, after an Iranian attack on a cargo ship in the Strait of Hormuz reignited geopolitical risk premiums. Chicago ULSD was talked at a discount of 27cts gallon to the August NYMEX ULSD contract, narrowing by 14cts on the day. This rebound erased a significant portion of Wednesday's slide, snapping the downward pressure caused by regional inventory builds. Wolverine and Buckeye Complex ULSD values strengthened alongside Chicago spot prices. Buckeye/Wolverine ULSD was talked at a discount of 24cts gallon to the August NYMEX ULSD contract, narrowing by 11cts on the day. The turnaround across Midwest ULSD came after the rally in August NYMEX ULSD, which rose almost 4% on the day after the Iranian strike on a Singapore-flagged vessel off Oman raised concerns about Middle East peace initiatives. The basis strength bypassed localized fundamentals, which had previously weighed on regional fuel values after a 900,000 bbl build in PADD 2 distillate inventories reported for the week ended June 19 by the U.S. Energy Information Administration. (c) Copyright 2026 DTN, LLC. All rights reserved.