Big Business Just Warned Trump: A Diesel Export Ban Will Backfire Spectacularly — And Here's the Proof

 

Big Business Just Warned Trump: A Diesel Export Ban Will Backfire Spectacularly — And Here's the Proof

**By a Market Analyst & Business News Writer | September 24, 2026**

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## The Letter That Put the White House on Notice

Let me tell you about a moment that should make every American who drives a truck, runs a farm, or fills up a gas tank sit up and pay attention.

On Wednesday, September 23, 2026, more than **30 of the most powerful business organizations in the United States** — representing oil producers, refiners, manufacturers, retailers, and the entire chamber of commerce — sent a joint letter to President Donald Trump. The message was blunt, urgent, and unmistakable: **A diesel export ban would make everything worse.**

The letter was signed by the **U.S. Chamber of Commerce**, the **Business Roundtable**, the **National Association of Manufacturers**, the **American Petroleum Institute**, the **American Fuel & Petrochemical Manufacturers**, the **Independent Petroleum Association of America**, and dozens of state and regional groups from across the country.

"Export bans would lead to less fuel production, tighter supplies, and rising costs for American families, farmers, and truckers," the groups wrote. "You have been asked by some to ban or limit the export of diesel to help lower prices, when in fact the opposite would occur."

That's not a subtle message. That's a direct contradiction of the policy the president himself endorsed just one day earlier.

On Tuesday, on the sidelines of the United Nations General Assembly in New York, Trump told reporters: "I've said let's not send out the diesel. We make a lot of diesel. I've called for it within my people. I've been talking about it."

The oil industry was blindsided. Business groups were stunned. And now, they're fighting back with everything they've got — because they believe the stakes couldn't be higher.

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## Why Diesel Prices Are at Record Highs — And Why Trump Is Under Pressure

Let's start with the numbers, because they explain why this fight is happening right now.

The national average price of diesel hit **$6.51 per gallon** on Thursday, according to AAA. That's **$2.82 more expensive** than the same period last year. Diesel prices have climbed to record levels — surpassing the previous high set during the summer of 2022 — driven by a global supply crunch tied to the Iran war.

Here's what's happening:

**Ukrainian attacks on Russian refineries.** Ukraine has systematically targeted Russian oil refineries with drone strikes, knocking out a significant portion of Russia's refining capacity. Russia is the world's number two diesel exporter, and its absence from global markets has tightened supplies dramatically.

**The Iran war.** Since the U.S.-Israel-Iran war began in February 2026, diesel exports from the Middle East have been cut off. The Strait of Hormuz — through which roughly 20% of the world's oil and refined products flow — has been effectively blockaded. This has removed a critical source of diesel from global markets.

**The result?** U.S. diesel exports have surged to fill the gap — reaching record levels of approximately **1.5 million barrels per day**. But that means less diesel is staying home for American consumers.

And in farm country, the pain is acute. Republican lawmakers from Iowa, Kansas, and Nebraska have been ratcheting up pressure on the White House to do something — anything — to lower diesel prices before the November midterm elections.

Sen. Chuck Grassley (R-Iowa) fired the first shot on X: "High diesel prices ARE KILLING FARMERS INCOME." He called on Trump to "put an embargo on diesel exports like presidents in the 70s put embargoes on ag products bc food prices were inflated."

Rep. Ashley Hinson (R-Iowa), who is locked in a tight Senate race, demanded action, calling for the House to return to session "immediately" to pause diesel exports and suspend the gas tax.

Even Louisiana Gov. Jeff Landry — whose state is home to some of the biggest oil refineries in the world — called for a 90-day ban on U.S. diesel exports.

The political pressure is real. The midterms are weeks away. And farmers are furious.

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## The Industry's Case: Why an Export Ban Would Backfire

The business groups' letter lays out a detailed, data-driven argument for why a diesel export ban would do the exact opposite of what its supporters intend. Let me break it down.

### Argument #1: Refineries Can't Just Stop Making Diesel

This is the core of the industry's case. When you refine a barrel of crude oil, you don't get to choose what comes out. You get a mix of products — diesel, gasoline, jet fuel, heating oil, and more. They're all produced from the same barrel.

If you ban diesel exports, that diesel has nowhere to go. It starts piling up in storage tanks along the Gulf Coast. Once storage fills up — and it would fill up quickly — refiners have no choice but to **cut crude processing**.

And when refiners cut processing, they produce **less of everything** — including gasoline and jet fuel.

"An export ban would require refineries to throttle utilization to reduce diesel production to equal domestic demand," the letter states. "Falling utilization would result in less gasoline and jet fuel production and higher prices for those products as well… This could not come at a worse time for consumers as home heating oil season is about to begin."

### Argument #2: The Short-Term Benefit Is a Mirage

Yes, diesel prices would probably fall in the short term. Analysts at Goldman Sachs and Morgan Stanley agree on that. If the roughly **1.5 million barrels per day** of diesel that leaves the U.S. every day suddenly stays home, domestic supplies would surge, and prices would drop.

But it wouldn't last.

Goldman Sachs' co-head of global commodities research warned that a ban "would rapidly fill domestic storage, depress the fuel's prices and ultimately shrink gasoline supply while pushing up costs at the pump."

Morgan Stanley analysts put it even more bluntly: "A diesel export ban could have the counterintuitive effect of an increase in gasoline prices if U.S. refiners cut runs."

Patrick De Haan, head of petroleum analysis at GasBuddy, summed it up on X: "If diesel exports get banned, [gasoline] prices could rise toward record levels."

### Argument #3: It's a Gift to America's Competitors

This is the geopolitical argument, and it's one that should resonate with a president who has made "energy dominance" a centerpiece of his agenda.

"Beyond price impacts, restricting exports would be a gift to our competitors," the letter states. "American energy dominance comes from being a reliable supplier to the world. If we pull back, other countries will step in, our influence will shrink, and our adversaries will gain ground."

Think about what that means. If the U.S. stops exporting diesel, Europe, Latin America, and Asia will have to find other suppliers. Russia — despite the refinery attacks — will fill some of that gap. Saudi Arabia will fill more. China will expand its refining capacity to capture market share.

And once those customers find new suppliers, they may not come back.

### Argument #4: The Precedent Is Dangerous

If the U.S. bans diesel exports, what stops other countries from banning exports of things America needs? Critical minerals. Pharmaceuticals. Semiconductor components.

"Export bans... could prompt retaliatory actions from other countries," the business groups warned.

The global trading system is built on the principle that countries don't weaponize their export sectors. If the U.S. breaks that principle, it invites others to do the same — and America, as the world's largest importer of goods, has more to lose than anyone.

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## What the Experts Are Saying

The business groups aren't alone in their opposition. Here's a roundup of the most important expert voices.

### Dan Brouillette, Former Trump Energy Secretary

Brouillette told CNN that a diesel export ban "makes very little economic sense" and would backfire.

"If you ban the exports of diesel, you also shut down gasoline refining, which constrains the market, potentially raising the price of gasoline as well as diesel," he said.

### Chris Wright, Current Energy Secretary

Wright, an oil industry veteran who previously served as CEO of Liberty Energy, has been publicly skeptical of a full ban.

"Nobody wants a full blanket ban or zero exports of diesel," Wright told The New York Times. "That's not being discussed. What's being discussed is what's the most efficient way to get more diesel into the United States of America and continue maximum flows of gasoline and jet fuel and all that."

Wright has hinted at a **voluntary cap** on diesel exports instead of a government mandate — an approach that would keep the world supplied while bringing prices down in the U.S.

### Ryan McConnaughey, Petroleum Association of Wyoming

"Right now, there's under capacity of production outside of the U.S.," McConnaughey told Cowboy State Daily. "So U.S. producers are really meeting the need for global diesel supply. Capping that or disallowing that export could send tremors through the market for diesel fuel."

### Dan Eberhart, CEO of Canary

Eberhart, a Trump donor and oil-field services executive, warned that a ban would send the wrong signal to global markets.

"I think we've invested too much in developing customers overseas, and this is the wrong signal," he said.

### Sen. Cynthia Lummis (R-Wyoming)

Lummis, a Republican Trump has endorsed for re-election, broke with the president on this issue.

"Senator Lummis opposes a ban on U.S. diesel exports," her spokesperson told Cowboy State Daily. "She shares the frustration over high diesel prices but believes a ban would disrupt supply and drive up costs for both diesel and gasoline in the long run."

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## The Market Reaction: Refiner Stocks Take a Hit

The mere prospect of a diesel export ban has already sent shockwaves through the stock market.

On Wednesday, shares of major U.S. refiners tumbled following a Politico report that the administration was preparing a **90-day ban** on diesel exports.

- **Marathon Petroleum** fell **1.5%**

- **Valero Energy** dropped **1.9%**

- **PBF Energy** declined **2.9%**

- **Phillips 66** and **Delek US** also traded lower

Citi analyst Vikram Bagri warned that "once a comprehensive diesel export ban is implemented, the historic rally in refining margins and refining stocks that has been seen so far will most likely come to an end."

TD Cowen judged that **PBF Energy and Delek US** face the highest downside risk to their stock prices.

The refining sector has been one of the best-performing corners of the market this year, with crack spreads — the difference between crude oil costs and refined product prices — hitting all-time highs. A diesel export ban would compress those margins within weeks.

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## Frequently Asked Questions (FAQs)

### Q1: What is a diesel export ban?

A diesel export ban would prohibit U.S. companies from selling diesel fuel to international buyers. The goal is to keep more diesel in the domestic market, increasing supply and lowering prices for American consumers.

### Q2: Why is Trump considering a diesel export ban?

Diesel prices have hit record highs — $6.51 per gallon nationally — driven by the Iran war, Ukrainian attacks on Russian refineries, and global supply constraints. Republican lawmakers from farm states are pressuring Trump to act before the November midterm elections.

### Q3: Why does big business oppose the ban?

More than 30 business groups signed a joint letter warning that a ban would "lead to less fuel production, tighter supplies, and rising costs." They argue that banning diesel exports would force refiners to cut production, reducing supplies of gasoline and jet fuel as well, and ultimately raising prices for American consumers.

### Q4: What would actually happen if the ban goes into effect?

In the short term, diesel prices might fall by 50 cents to $1 per gallon. But within weeks, refiners would cut production as storage fills up. Gasoline and jet fuel supplies would tighten, pushing prices higher. And global diesel prices would spike, eventually feeding back into U.S. prices.

### Q5: What do analysts say?

Goldman Sachs, Morgan Stanley, and GasBuddy all warn that a diesel export ban would backfire by raising gasoline prices. Morgan Stanley analysts wrote that the ban "could have the counterintuitive effect of an increase in gasoline prices if U.S. refiners cut runs."

### Q6: Is the ban definitely happening?

Not yet. Energy Secretary Chris Wright has denied reports of a full ban, saying "nobody wants a full blanket ban." Instead, the administration may pursue a **voluntary cap** on exports. But Politico reported that the White House is preparing a 90-day ban plan, and Trump has publicly endorsed the idea.

### Q7: Who supports the ban?

Farm-state Republicans, including Sen. Chuck Grassley (R-Iowa), Rep. Ashley Hinson (R-Iowa), and Gov. Jeff Landry (R-Louisiana), support the ban. They argue that record diesel prices are crushing farmers and truckers. Some Democrats, including Iowa Senate candidate Josh Turek, also support it.

### Q8: Who opposes the ban?

The American Petroleum Institute, the U.S. Chamber of Commerce, the Business Roundtable, the National Association of Manufacturers, and dozens of other business groups oppose it. Energy Secretary Chris Wright, Treasury Secretary Scott Bessent, and Interior Secretary Doug Burgum have all signaled skepticism. Oil-state Republicans like Sen. Cynthia Lummis (R-Wyoming) and Sen. Dan Sullivan (R-Alaska) oppose it.

### Q9: How would this affect American investors?

Refiner stocks — Marathon Petroleum, Valero, Phillips 66, PBF Energy, Delek US — would be hit hardest. The refining sector has been one of the best-performing corners of the market this year, and a ban would compress margins significantly. Energy sector ETFs could also see volatility.

### Q10: What should I watch for next?

A final decision from the White House — whether it's a full ban, a voluntary cap, or no action at all. Trump said a decision would come "fast." Keep an eye on diesel futures, refiner stocks, and any official announcement from the administration.

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## Conclusion: The Fight for America's Energy Future

The battle over the diesel export ban is not just a policy dispute. It's a **referendum on how America uses its energy power**.

For decades, the United States has been the world's indispensable energy supplier. When Europe needed natural gas after Russia's invasion of Ukraine, America shipped it. When Asia needed crude oil, America provided it. When global markets faced disruptions, America filled the gap.

That role has made America rich, powerful, and secure. It has given the U.S. leverage over adversaries and credibility with allies. It has created millions of jobs and generated billions in revenue.

Now, a single policy decision could undermine all of that.

The business groups' letter is a warning. A diesel export ban would be a "gift to our competitors." It would "lead to less fuel production, tighter supplies, and rising costs for American families, farmers, and truckers." It would "prompt retaliatory actions from other countries."

These are not idle threats. They are the considered judgment of the people who actually produce America's energy.

But the political pressure is real. Farmers are hurting. Truckers are hurting. And Republican lawmakers facing tight midterm races need to show their constituents they're doing something.

The question is whether Trump will listen to the oil industry — one of his most loyal and deep-pocketed allies — or to the farm-state Republicans whose votes he needs in November.

Energy Secretary Chris Wright has hinted at a compromise: a **voluntary cap** on exports instead of a government mandate. That approach would keep the world supplied while bringing prices down in the U.S. It's a pragmatic solution that might satisfy both sides.

But Trump has said a decision will come "fast." And in this White House, fast often means unpredictable.

For American consumers, the message is simple: **Don't expect relief at the pump anytime soon.** The forces driving diesel prices higher — war in the Middle East, refinery disruptions in Russia, global supply constraints — aren't going away. A ban, if it happens, is likely to make things worse before it makes them better.

For investors, the message is equally clear: **Energy stocks are facing a political risk** they haven't had to deal with in years. The industry's grip on Republican policymakers is loosening. And that could have profound implications for valuations.

The oil industry's worst fear is coming true. They're losing the battle. And the question now is: What happens when they lose the war?

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## Disclaimer

This article is for informational and educational purposes only and does not constitute financial, investment, or policy advice. The information contained herein is based on publicly available sources as of September 24, 2026. Energy markets and political developments are subject to rapid change. Commodity and stock market investments involve risk, including the potential loss of principal. Past performance is not indicative of future results. The author and publisher are not responsible for any decisions made based on the information presented in this article. Always consult a qualified financial advisor before making any investment decisions.

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