California's diesel prices have jumped since the Iran war started, with ripple effects across the country.
California is home to the highest fuel prices in the U.S. as well as the busiest containership port complex in the nation. As the Iran war enters its sixth month and petroleum-product prices remain elevated, consumers across the U.S. could be hit with higher prices for a host of everyday products.
Diesel is sometimes known as the workhorse of the American economy since trucks and trains that transport goods across the U.S. are powered by it.
The average price for a gallon of diesel in the U.S. is $5.36, but in California, it's $6.92, up from $5.10 prior to the war.
A meaningful share of America's supply chain pays West Coast fuel prices, according to JPMorgan analysts.
