John Thune Considers Diesel Export Ban as Prices Surge to Record Highs

Senate Majority Leader John Thune has indicated a willingness to explore the possibility of banning diesel exports, a significant shift from the long-standing Republican advocacy for energy deregulation and free trade. His comments, made on September 15, 2026, come as diesel prices have surged to an average of $6.285 per gallon nationally, up from $5.967 just a week earlier.

The rising diesel prices are attributed to two main factors: the ongoing conflict between the U.S. and Iran, which has disrupted global supply chains, and a record increase in American fuel exports. In early July 2026, U.S. distillate exports averaged 1.7 million barrels per day, the highest levels recorded for that time of year. When domestic refiners can sell fuel for higher prices abroad than they can at home, the fuel tends to be exported rather than sold domestically.

Adding to the complexity, Russia implemented its own diesel export ban in early July 2026 due to domestic shortages, which redirected global demand toward U.S. suppliers. This has exacerbated the already tight domestic market, leading to further price increases.

While Thune's openness to an export ban is noteworthy, the pathway to enacting such a ban is complicated by legislation passed by Congress in 2015 that repealed broad presidential authority to restrict refined-product exports. This repeal was part of a broader initiative to lift the long-standing U.S. crude oil export ban. As a result, any new restrictions on diesel exports would likely require Congressional approval, meaning Thune would need to rally support within his own chamber to pass enabling legislation.

Concerns Over Export Ban's Effectiveness

Interior Secretary Doug Burgum has raised concerns about the practicality of an export ban, suggesting that it may not lead to lower prices at the pump. He argues that U.S. refiners, if barred from selling abroad, would not necessarily pass any savings on to domestic consumers. Furthermore, Burgum pointed out the risk of trade retaliation; the U.S. exports diesel to allies and trading partners in Europe and Latin America, and a sudden export ban could provoke reciprocal actions that might target U.S. imports.

At $6.285 per gallon, diesel prices pose a significant challenge not only for households but also for industries reliant on distillate fuel, such as trucking, agriculture, construction, and manufacturing. With the midterm elections approaching in November, there is a heightened urgency for politicians to be seen taking action to address rising fuel prices.

The Common Sense Test

Thune's consideration of a diesel export ban reflects a growing concern among lawmakers about the impact of high fuel prices on the economy. As diesel fuel is a critical component for many sectors, the implications of such a policy could reverberate throughout the economy. The challenge lies in balancing the immediate need to address rising prices with the long-term consequences of restricting exports, which could undermine the principles of free trade that have been a cornerstone of U.S. energy policy.

Ultimately, the question remains whether an export ban would effectively lower diesel prices or simply create new problems in the market. As policymakers grapple with these issues, it is crucial to consider the broader economic implications and the potential for unintended consequences. The urgency of the situation, compounded by the upcoming elections, may push legislators to act quickly, but they must do so with careful consideration of the facts and potential outcomes. The balance between domestic needs and international trade commitments will be a critical factor in any decision moving forward.