Diesel Export Bans: How They Affect U.S. Fuel Prices

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A government ban on diesel exports would stop fuel from being sold overseas, with the aim of making it cheaper at home. Diesel that would have gone abroad could instead add to the supply available to U.S. buyers.

But a refinery produces gasoline and aviation fuel alongside diesel. If an unsold diesel surplus leads refiners to cut output, those other fuels could become scarcer and more expensive. The price benefit depends on what happens after exports stop: whether refineries keep producing and whether the retained diesel reaches the buyers who need it.

What a diesel export ban would change

A diesel export ban would restrict the sale abroad of a finished fuel made from crude oil, rather than stop crude oil itself from leaving the country. The immediate attraction is a temporary surplus: diesel that a refinery would otherwise sell overseas could remain available at home, potentially lowering prices in some areas. That is a possible first effect, not a promise about the national average or the price at every station.

The average price of highway diesel reached $6.529 per gallon on September 21, 2026, according to the Energy Information Administration. As of October 1, 2026, the Trump administration and some members of Congress were reportedly considering restrictions on diesel exports, according to the Congressional Research Service, which analyzes policy for Congress. Their goals, the service reported, are increasing domestic supply and reducing consumer product prices through lower shipping costs.

In its October 6, 2026 outlook, the Energy Information Administration linked September’s sharp rise in U.S. diesel prices to higher crude oil prices and a wider gap between crude oil costs and fuel prices.

Diesel powers most U.S. farm equipment and the trucks, trains, boats and barges that carry goods. A policy that changes its price reaches people who never buy diesel themselves.

The Congressional Research Service says railroads and trucking companies can absorb higher fuel costs through lower profitability or add fuel surcharges to shipping rates. Many shippers, transportation companies and truckers use weekly diesel prices in privately negotiated fuel surcharge formulas, and each company can use its own calculation method. A lower fuel bill may ease freight costs, but those arrangements leave open how much of the saving reaches a customer.

Why exports and imports can exist together

In 2025, U.S. refineries produced about 1.76 billion barrels of ultra-low sulfur distillate, a fuel category used for diesel and heating oil. The United States consumed about 1.42 billion barrels of that category, exported about 0.40 billion barrels and still imported about 0.06 billion barrels that year. Exports and imports exist side by side: a national production surplus does not make every local market self-sufficient.

About half of U.S. diesel production comes from the Gulf Coast, and transport costs tend to increase with distance from the source of supply. Most diesel moves by pipeline from refineries and ports to terminals near major consuming areas; barges and trains also carry it to terminals, and trucks deliver it onward. The Energy Information Administration explains that if the transport system cannot move supplies between regions quickly enough, diesel prices can remain comparatively high. An export terminal with extra fuel therefore does not automatically solve a shortage somewhere else.

International demand for distillate fuel also affects U.S. diesel prices, while worldwide crude oil supply and demand determine the cost of the raw material. An export ban would change one part of this connected market; the worldwide price of crude oil would still shape the cost of making diesel.

Shipping rules and inventories shape the first effect

Moving diesel by sea between U.S. ports falls under the Jones Act, which normally requires vessels carrying cargo between U.S. points to be U.S.-built and owned and crewed by U.S. citizens. The Department of Homeland Security issued a Jones Act waiver on March 17, 2026, shortly after military operations began against Iran, and extended it through mid-November 2026, the Congressional Research Service reported on October 1, 2026. The waiver has allowed diesel shipments between U.S. ports on foreign vessels: more than 20 voyages carried diesel under it as of September 2026, the report said, citing Maritime Administration records. A waiver removes a legal barrier; it does not guarantee that a vessel, terminal or connecting route is available when it is needed.

Low or falling diesel inventories can lead wholesalers and marketers to bid more for available supplies. Fall and winter heating-oil demand can also put pressure on diesel prices because the fuels are produced together. Fuel held in storage can help bridge a disruption, but the timing and location of that stock matter as much as the national total.

The retail diesel price includes crude oil, refining, distribution and retail costs and profits, as well as taxes. Even a successful increase in local diesel supply would not, by itself, change every part of the pump price.

A refinery cannot treat diesel as a separate business

Refineries separate crude oil into components, convert selected components into new products and treat the resulting fuels. They can turn heavier fractions into lighter products through processes such as cracking, which uses heat, pressure and sometimes hydrogen. A refinery cannot simply make gasoline in place of every unwanted gallon of diesel; changing the mix depends on its processing equipment.

The Congressional Research Service reports that analysts expect refiners could reduce diesel production until a surplus is depleted, depending on how export restrictions are structured. Because the same refining process also produces gasoline and aviation fuel, lower diesel output could come with lower output of those fuels and potentially higher prices. A short restriction that builds useful inventories and a prolonged restriction that cuts refinery output need not have the same result. An export ban, by itself, guarantees neither a price drop nor a price increase.

The report also warns that higher diesel costs in countries losing U.S. supplies could raise the prices Americans pay for imported goods.

Who could impose restrictions

Who can restrict diesel exports depends on the legal authority used. One older provision, section 6212 of Title 42 of the U.S. Code, related to domestic use of energy supplies and was repealed in 2015. In the 2014 U.S. Code, that section let the President restrict exports of petroleum products and other energy supplies by rule to carry out the law’s purposes. A separate provision, section 6212a of Title 42 of the U.S. Code, generally bars federal restrictions on crude oil exports subject to its stated exceptions. That rule is about crude oil, which is a different product from refined diesel.

The International Emergency Economic Powers Act lets the President regulate or prohibit exports of property in which a foreign country or foreign national has an interest, subject to U.S. jurisdiction. Using those powers requires an unusual and extraordinary threat originating wholly or substantially outside the United States, and the President must declare a national emergency addressing that threat. The powers may be used only to deal with the declared threat. The President must consult with Congress before using the powers whenever possible, keep consulting while they are in use and report to Congress immediately when they are exercised. High pump prices alone do not answer those statutory questions.

Existing federal export licensing rules for goods in short supply cover listed petroleum products other than crude oil that were produced from the Naval Petroleum Reserves or became available through an exchange of those products. The Naval Petroleum Reserves were government-owned oil properties set aside in the early 1900s to supply naval vessels during shortages or emergencies. The Bureau of Industry and Security publishes these short-supply licensing rules. Those limited controls should not be mistaken for a blanket prohibition on exporting ordinary commercial diesel.

Congress can also consider new legislation with its own trigger and end date. Representative Tim Burchett of Tennessee introduced H.R. 10423 with Representative Clay Fuller of Georgia as a cosponsor. Burchett argues that refiners sell diesel for higher prices in Europe, reducing domestic supply and raising U.S. prices, and that keeping it at home would ease costs for families and businesses. Two bills introduced in the House on September 16, 2026 show different designs: H.R. 10423 would prohibit diesel exports from enactment through the end of 2026, while the Diesel Price Reduction Act of 2026, H.R. 10422, would use a price trigger. Under the price-trigger bill, the ban would begin on the fourteenth consecutive day with average U.S. retail diesel above $5 per gallon and end on the thirtieth consecutive day below $4.50. Those prices would switch the export ban on and off; the bill would not set the price at a filling station. Both bills were proposals under consideration as of the October 1, 2026 Congressional Research Service analysis; neither is a rule that consumers or exporters should assume has taken effect.

What the earlier U.S. dispute reveals

On September 30, 2022, Energy Secretary Jennifer M. Granholm called on companies to rebuild gasoline and diesel inventories and pass savings to consumers. She argued that inadequate regional inventories left customers exposed when refineries went offline.

In October 2022, the White House asked the Energy Department to examine whether a ban on exports of refined petroleum products, including diesel, could lower domestic prices, the Congressional Research Service later reported.

On October 4, 2022, American Fuel and Petrochemical Manufacturers president Chet Thompson and American Petroleum Institute president Mike Sommers sent Granholm a letter opposing refined-product export restrictions. They argued that restrictions could reduce inventories and refining capacity, raise fuel prices and undermine U.S. allies by removing supply from the international market.

No ban was implemented in that episode. The disagreement concerned how best to protect supply: hold more fuel at home, or preserve the export outlets that support production and international deliveries.

In May 2024, the Energy Information Administration reported that increased demand for Russian exports and refinery outages had reduced fuel available within Russia, leading to higher domestic fuel prices and periodic export bans.

When evaluating a new proposal, look for the product covered, the destinations affected, the start and end conditions, and a plan for moving retained fuel to consumers. Then look for its effect on refinery output: a stockpile that lowers prices briefly and a continuing flow of affordable fuel are different tests of success.