The diesel squeeze has been building since supply disruptions linked to the war in Iran and Russia’s invasion of Ukraine tightened markets. U.S. average diesel prices hit a record $6.50 a gallon late last month, putting the issue squarely into the political crosshairs ahead of November’s midterm elections.¹

On Thursday, Treasury Secretary Scott Bessent pressed European allies to move faster, saying they should make additional supplies available immediately. “America is doing its part,” he said. “We look to our allies to match their commitments with action.”¹

By Friday, that pressure had produced a collective response. The G7 agreed to release 100 million barrels from reserves over four months, beginning immediately, with a substantial frontloaded diesel release in the first 20 days under International Energy Agency coordination.¹ President Donald Trump cast the step as Europe releasing a “massive amount” of its heavily stocked diesel.

For European officials, however, the reserve drawdown does not erase the larger risk. The United States supplied roughly half of EU diesel imports in August, making talk of a possible U.S. export ban especially unsettling. EU trade chief Maros Sefcovic said Brussels and Washington shared an interest in lowering prices, but warned that export restrictions would be unexpected and would damage Europe’s economic outlook.¹

The immediate market signal was calmer: oil prices fell after reports that EU states were discussing additional releases. Yet analysts argue stockpiles can only buy time. Macquarie strategist Walt Chancellor called the crisis “a global energy problem,” contending that a durable fix requires more oil flowing through the Strait of Hormuz—not merely shifting barrels from emergency reserves.¹