Blame for High Oil Prices Shifts to the Refineries

Traders said the most eye-catching gain this year had been US heating oil futures, which were trading at a premium to gasoline futures – the first time this has ever occurred in June, which is near the peak in demand for gasoline and the trough for heating oil demand.

“We have not had heating oil prices above gasoline in June since the [second world] war,” said Philip Vergeler, an independent petroleum economist.
Financial Times