Diesel cracks
Updated
What it is
Diesel crack spreads measure the price difference between refined diesel fuel and the crude oil used to produce it, a key profitability indicator for refiners and a signal of diesel-specific supply-demand tightness. Elevated diesel cracks typically reflect strong industrial/freight demand or constrained refining capacity for middle distillates specifically, as opposed to crude oil generally.
Why it matters lately
Diesel crack spreads widened during the 2026 Iran war as Gulf refining and export disruption concerns added diesel-specific supply fears on top of the broader crude-price shock, with US and European diesel inventories already running below seasonal norms entering 2026. The EIA's 2026 reporting noted diesel cracks remained elevated relative to gasoline cracks for much of the year, reflecting continued tightness in distillate markets tied to both the Iran war and ongoing refinery-capacity constraints.
Asymmetric Analytics view
Inference (AA): ELSI tracks diesel cracks separately from headline crude prices since distillate-specific tightness has historically been a sharper leading indicator of freight and industrial cost pressure.