Analysis: Fuel Outages, Harvest Collide in "Wild Midwest"


   
Barani Krishnan
DTN Refined Fuels Market Reporter

   SECAUCUS, NJ (DTN) -- Sudden supply shocks, pipeline batching delays and 
thin liquidity have turned Midwest cash fuel trading into what physical traders 
are calling the "Wild West" of U.S. refined products -- a description for the 
extreme basis swings that routinely dwarf shifts seen on the Gulf Coast and 
East Coast.

   Differentials against NYMEX futures for fuels in PADD 2 hubs such as 
Chicago, Buckeye, Wolverine and Group 3 have shown acute intra-day volatility 
in recent weeks. DTN pricing data has logged trading ranges of between 20cts 
and 40cts gallon at times in ultra-low sulfur diesel (ULSD) and the 
Conventional Blendstock for Oxygenate Blending (CBOB) variant for gasoline.

   "The Midwest is truly the Wild West of fuels markets now; it's absolute 
volatility across the board," said a regional fuels trader. "We're seeing 
spreads shift by several cents in a single window between West Shore, Badger, 
and the broader Chicago complex. You're trying to mark basis while balancing 
refinery restart timelines against real-time physical demand, and the market is 
moving before the ink even dries on a print."

   The swings stem from global supply tightness -- particularly in ULSD 
following Russian export limits and Middle East trade disruptions -- alongside 
domestic operational issues stretching from Illinois into Indiana. Political 
rhetoric, including proposals by U.S. President Donald Trump to restrict 
domestic diesel exports, has introduced additional uncertainty to regional 
markets.

   While recent operational outages at ExxonMobil's 275,000 bpd Joliet refinery 
and long-running labor negotiations at BP's 440,000 bpd Whiting plant have 
heightened supply concerns, the onset of the Midwest harvest season adds 
another layer of complexity. Agricultural demand will require significant 
volumes of diesel to power farm machinery and transport crops from fields to 
market terminals over the coming weeks.

   Price roller coaster

   DTN pricing data highlights the severe intra-day and intra-month swings 
across the region, with Chicago ULSD surging nearly $1.60 a gallon from late 
August levels to hit a peak of $5.7078 on September 18 before pulling back 
toward $4.6991.

   Despite recent pullbacks, monthly averages reflect a severely constrained 
market, with Chicago ULSD averaging $4.7980 a gallon in September -- up 
81.06cts, or 20.33%, from August.

   Current spot prices also remain more than double their year-ago levels, with 
Group 3 ULSD assessed Thursday at $4.7766 a gallon, up 109% from $2.2847 a 
gallon on September 24, 2025.

   The catalyst for the market's most recent turbulence was a September 13 
site-wide power outage at the Joliet refinery in Channahon, Illinois, that was 
compounded by secondary pump flooding on September 17. The facility, which 
accounts for roughly 6% of total Midwest refining capacity and processes 11 
million gallons per day of gasoline and diesel, temporarily restricted refined 
product flows directly into major Chicago distribution hubs and regional 
pipeline networks.

   Supply distribution was further complicated by lingering operational 
adjustments on the Explorer Pipeline following an August 17 lightning strike 
and three-tank fire at its Glenpool, Oklahoma breakout station. While main 
trunkline movements across the 1,800-mile system normalized, the temporary 
disruption at Glenpool has restricted batch scheduling and cycle timing into 
Wood River and Chicago hubs, leaving downstream markets vulnerable to localized 
supply squeezes.

   Lower refining activity

   Refinery utilization across PADD 2 reflects the suddenness of the 
disruption. Energy Information Administration (EIA) data shows regional refiner 
crude processing dropped from 4.241 million bpd to 3.802 million bpd for the 
week ended September 18, pulling utilization down 11.0 percentage points to 
89.0%. The sharp drop contributed to a 1.6 million bbl draw in PADD 2 
distillate fuel oil inventories to 27.2 million bbl -- the lowest level since 
mid-June.

   Energy traders are watching whether the market will transition into a calmer 
regime in the near term. Physical differentials have already begun to retreat 
from peak levels as units at the Joliet complex undergo stabilization and 
step-by-step restart procedures, easing immediate spot coverage fears for 
regional jobbers.

   "Operational problems in PADD 2 couldn't come at a worse time as harvest 
demand picks up," John Kilduff, partner at New York energy hedge fund Again 
Capital, told DTN. "Between ongoing Russian supply disruptions and escalating 
conflict in the Middle East, global markets need every barrel and every drop 
right now -- leaving zero room for error in Midwest supply balances."

    

    




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