U.S. consumers paid estimated $100 billion more for fuel since Iran war began

Sep 7, 2026 13:55 (48d ago)

U.S. consumers incurred more than $100 billion in excess fuel costs since February.
The study attributed $55.1 billion to gasoline and $45.52 billion to diesel.
California diesel averaged $7.8276 per gallon on Tuesday.

U.S. consumers incurred more than $100 billion in excess fuel costs after the war in Iran began in February, according to a study by Brown University’s Watson School of International and Public Affairs. The estimate includes more than $55.1 billion in additional gasoline costs and $45.52 billion in diesel costs. Across roughly 131 million households, the study calculated average excess gasoline costs of $421.05 per household, with Texas and California accounting for $5.1 billion and $4.7 billion, respectively. Former Congresswoman Marjorie Taylor Greene criticized President Donald Trump on X as fuel prices rose, citing diesel prices nearing $6 nationally and potentially exceeding $8 in California. AAA data showed Tuesday national averages of $4.1514 per gallon for gasoline and $5.9012 for diesel, while California averages were $5.8658 for gasoline and $7.8276 for diesel.