Morgan Stanley Flags Diesel Export Ban Risks to US Gasoline Prices

Summary

• Morgan Stanley warns a U.S. diesel export ban would force refiners to cut runs and push gasoline prices higher.
• Diesel prices surged above $6.50 per gallon in 2026 amid White House consideration of export restrictions.
• A ban could raise world prices by as much as 100% given low price elasticity of demand.

US drivers face higher gasoline prices if the Trump administration bans diesel exports. Morgan Stanley warned about this in September 2026. Diesel prices already top $6.50 per gallon.

The bank says refiners will cut output instead of boosting domestic supply. Refiners export diesel now because the US market can't take all they produce. A ban would fill storage fast.

They would have to slow operations and cut gasoline too.

Context

Diesel prices rose sharply in 2026. Global demand stayed strong and supplies tight. Policymakers looked at export limits to keep more fuel home.

Morgan Stanley analysts say this would hurt refinery economics instead.

Background reports agree. Bloomberg and Reuters point out that US refiners can't easily switch between diesel and gasoline. Policy shifts hit fuel prices directly.

Details

Morgan Stanley expects storage to fill quickly with an export ban. Refiners would lower crude runs. This cuts total fuel output including gasoline.

The firm sees US gasoline prices rising even with more diesel at home.

"A ban could raise world prices by as much as 100%, given the fuel's low price elasticity of demand."

, Philip Verleger (Reuters)

Analysts add that the ban would tighten global markets. Refinery margins would shrink. Investment in new capacity would drop.

Less fuel overall.

Outlook

Policymakers and drivers need to watch for any announcement on diesel export ban rules. They should track refinery utilization data next. That will show early signs of gasoline price pressure.