Brent closed the second quarter down about 30%, its steepest quarterly fall since the second quarter of 2020, after a roughly 20% drop in June alone 1. The benchmark fell 2.93% to $72.46 on 26 June as the Doha US-Iran talks resumed and settled near $72-73 into the close 2, extending a descent that had reached a three-month low days earlier as Iranian flows under General License X weighed on the benchmark .
Crude input cost fell faster than physical product prices through June, so European refiners gain from the move rather than lose. With Amsterdam-Rotterdam-Antwerp (ARA) gasoil stocks already at a 2.5-year low , the ICE Gasoil crack, the refining margin between European distillate and crude, stays supported near recent levels around $54/bbl, and the dynamic favours further widening.
European refiners cannot touch the discounted GL X barrels under EU Regulation 833/2014, and BP Rotterdam's second crude unit is still dark, capping how much of the wider crack Europe can actually capture. The margin gift accrues to whoever can run barrels: integrated majors with spare conversion capacity, not the plants with units down for outage.
