Gasoline's premium to crude oil posted its largest weekly gain on record, delivering a rare boost to European refiners battered by soaring oil prices. The surge comes as the Iran war drives crude costs higher, squeezing margins across the refining sector. This unexpected windfall arrives at a critical moment for an industry struggling with profitability.

Refiners have faced mounting pressure as crude oil prices climb, making it more expensive to produce gasoline and other refined products. The widening crack spread - the difference between crude costs and refined product prices - signals improved profitability for refineries that can capitalize on the market dislocation. European refiners, in particular, have been hit hard by high feedstock costs and weak demand in recent months.

This record-breaking gain in gasoline margins could provide temporary relief to an industry under siege. The Iran war continues to create volatility in oil markets, with crude prices remaining elevated. For European refiners, this unexpected margin expansion offers a chance to improve their financial position, though the sustainability of these gains remains uncertain as geopolitical tensions persist.