Analysis-Midwest Fuel Supply Tightens on Hub Disruptions


   
Barani Krishnan
DTN Refined Fuels Market Reporter

   SECAUCUS, NJ (DTN) -- Recurring operational outages at Midwest refining and 
transit hubs is squeezing prompt product availability across the region's 
distribution channels, triggering localized spot price swings despite high 
overall regional refinery processing rates.

   The volatility is most pronounced in Midwest gasoline, with Chicago CBOB 
regular plummeting more than 38cts, or 11.3%, week-on-week to average $3.0015 
gallon, according to DTN data.

   Chicago jet fuel spot marks have also experienced sharp swings, sliding 
nearly 60cts from late July highs near $3.86 gallon to trade around $3.2687 
gallon by Aug. 6.

   The primary operational catalyst appears to be the Phillips 66's 356,000 bpd 
Wood River refinery in Roxana, Illinois. Hiccups at the facility have 
periodically trimmed finished fuel output. Unplanned disruptions to its 
secondary units, including fluid catalytic cracking and hydrotreating capacity, 
have forced local distributors to scramble for physical replacement barrels in 
spot markets.

   Further west, logistics bottlenecks at the Lamar terminal pipeline hub near 
the Colorado-Kansas border have restricted northbound product movements into 
mid-continent distribution networks. As a crucial crossover hub connecting Gulf 
Coast and Rocky Mountain supply lines with PADD 2 channels, throughput delays 
or terminal allocation limits at Lamar abruptly constrict spot barrel velocity.

   Vulnerable Supply

   While local supply bottlenecks at Lamar and Wood River provided underlying 
support to basis differentials, the steep drop in benchmark NYMEX futures -- 
driven by global macro headlines -- have dragged cash prices lower overall.

   Additionally, localized sell-side pressure from refiners unloading prompt 
gasoline added to the downward pressure as PADD 2 refinery utilization remained 
elevated. This has made underlying supply flows remain vulnerable to 
unannounced unit-level trims and pipeline throughput constraints.

   "Supply issues at Lamar and Wood River, combined with a lack of sell-side 
presence from majors, have whipped the cash market around," a Midwest fuels 
trader told DTN. "When you pair those physical disruptions with two or three 
heavy down days on NYMEX driven by Middle East peace talks, prices are 
scrambling to find their footing."

   The physical tightness coincides with a drop in Midwest refinery runs, which 
fell to 98.2% capacity during the week ended July 31 from 101.4% the prior 
week, according to Energy Information Administration data. Refiner crude inputs 
in PADD 2 slipped to 4.192 million bpd from 4.336 million bpd the previous 
week, reflecting reduced regional processing activity.

   During that same reporting week, PADD 2 motor gasoline stocks drew by 
900,000 bbl to 43.4 million bbl, standing 2.1 million bbl below year-ago 
levels. Regional distillate inventories also dipped, falling by 200,000 bbl to 
28 million bbl, though total distillate holdings remain 700,000 bbl above the 
corresponding week in 2025.

   Jet fuel inventories bucked the broader drawdown trend across refined 
products, building by 400,000 bbl to reach 7.7 million bbl. The weekly 
accumulation placed regional jet fuel stocks 300,000 bbl above the 7.4 million 
bbl recorded during the same week last year.

   Despite regional transit friction, Midwest refiners maintain a privileged 
feedstock cost structure due to landlocked access to 2.75 million bpd of heavy 
Canadian crude. 




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