U.S. diesel hit a record $6 a gallon on Thursday as the Iran war and Ukrainian attacks on Russian refineries squeeze supply

Benchmarks for crude oil and diesel hit warning thresholds as the war in the Middle East escalates.

The US national average price of diesel on Thursday surpassed $6 a gallon for the first time ever, according to price tracker GasBuddy, as the US-Israeli war on Iran and Ukrainian…