Diesel in California rises to $7 a gallon as wars in Europe and Middle East strain supply

• Global diesel supply has been reduced by about 8% of the 28 million barrels per day demand, with Russia banning 800,000 bpd of diesel exports due to Ukrainian drone attacks and Middle East disruptions affecting 1.2 million bpd
• Refining margins have surged to $100 per barrel for converting crude to diesel, higher than the $85 per barrel price of U.S. crude oil itself, creating massive profits for refiners
• California faces particularly high prices due to reliance on costly crude imports, special diesel formulation requirements, environmental regulations, and state taxes, with national average diesel at $5.50 per gallon

Market Summary: California Diesel Prices Hit $7/Gallon Amid Global Supply Disruption

Key Price Movements

California diesel prices reached $7 per gallon on Wednesday, rising 30 cents over the past month and surging $1.89 (37%) year-over-year. National average diesel prices hit $5.50/gallon, up 40 cents monthly and $1.81 versus the prior year. California previously reached a record $7.75/gallon in April.

Supply Disruptions

Global diesel supply faces an 8% shortfall against 28 million barrels per day (bpd) demand due to ongoing conflicts. Ukrainian drone strikes on Russian refineries forced Moscow to ban approximately 800,000 bpd of diesel exports. Middle East disruptions in the Strait of Hormuz have impacted 1.2 million bpd of exports. The Houthi attack on Saudi Arabia's Jizan refinery eliminated 200,000 bpd of capacity through at least end-August. S&P Global estimates 6 million bpd of global refining capacity is currently offline.

Market Impact

Refining margins have surged to $100 per barrel—higher than the $85 crude oil price—generating substantial profits for refiners. However, analysts warn of significant inflationary pressure on consumers as diesel powers transportation, agriculture, heating, and industrial sectors. Rising diesel costs will impact grocery bills and retail prices, particularly concerning as harvest season and holiday freight transportation approach.

Outlook

Experts indicate prices will remain elevated until damaged refineries return online and Middle East exports normalize. Western sanctions complicate Russia's ability to source repair materials, likely prolonging outages. California faces higher prices than continental U.S. due to reliance on costly crude imports, special formulation requirements, and stringent environmental regulations with higher state taxes.