Chicago ULSD Basis Up 44cts as Joliet Outages Jolt Market
9/17 4:44 PM
Chicago ULSD Basis Up 44cts as Joliet Outages Jolt Market Barani Krishnan DTN Refined Fuels Market Reporter SECAUCUS, NJ (DTN) -- Chicago ultra-low sulfur diesel (ULSD) led the rally in Midwest distillate markets Thursday (9/17) as mounting disruptions at ExxonMobil's Joliet refinery jolted markets already unnerved by physical fuel tightness. Chicago ULSD basis surged 44cts to a premium of 55cts gallon over October NYMEX ULSD. Eastern pipeline networks mirrored the upward momentum, with Buckeye Complex ULSD basis advancing 45cts and Wolverine ULSD basis rising 40cts to match the 55cts premium against the NYMEX benchmark. "Joliet is the big issue there for sure," said one Midwest fuels trader, adding that supply tightness appears poised to sustain through the current trading cycle. "It seems to have some legs here. We're not done with the cycle until basically next Thursday, so we've got a whole week to see what happens." Floodwater overwhelmed a pump Thursday (9/17) at Joliet refinery in Channahon, Illinois, resulting in an oil release into water, a filing with the Illinois Emergency Management Agency (IEMA) said. The flooding incident was reported just four days after a weekend power outage at the facility that triggered a site shutdown and safety flaring. The Joliet complex processes heavy Canadian crude oil to produce transportation fuels distributed across Midwest markets. In the Midcontinent on Thursday, Group 3 ULSD basis edged higher by 5.5cts to stand at a premium of 4.5cts gallon against the benchmark contract. Aviation fuels also strengthened across the region. Chicago jet fuel basis gained 10cts on the day to stand at a 70cts gallon discount to October ULSD futures, while Group 3 jet fuel basis rose 13cts to a 77cts gallon discount. The rally in Midwest ULSD unfolded despite a latest weekly rise in regional distillate inventories. EIA data showed PADD 2 stocks of the product rose 300,000 bbl during the week ended Sept. 11 to 28.8 million bbl, while jet fuel inventories also grew 300,000 bbl to 28.8 million bbl as refinery crude utilization slipped 2.6 percentage points to 99%. In Thursday's session, October NYMEX ULSD eased 13.26cts, or 2.52%, to finish at $5.1139 gallon after bottoming at $5.0046 gallon during the session. (c) Copyright 2026 DTN, LLC. All rights reserved.
 
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