• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
EconomyCurrency

Dollar dominance is reinforced by the global oil trade, but the Iran war could give rise to the ‘petroyuan’ as the U.S. security shield weakens

Jason Ma
By
Jason Ma
Jason Ma
Weekend Editor
Down Arrow Button Icon
Jason Ma
By
Jason Ma
Jason Ma
Weekend Editor
Down Arrow Button Icon
March 28, 2026, 3:37 PM ET
"In this context, reports that the passage for ships through the Strait of Hormuz may be granted in exchange for oil payments in yuan should be closely followed."
"In this context, reports that the passage for ships through the Strait of Hormuz may be granted in exchange for oil payments in yuan should be closely followed." CFOTO/Future Publishing via Getty Images

Middle East oil has long been a linchpin of the U.S. dollar’s status as the dominant currency in global trade and reserves, but President Donald Trump’s war on Iran could open the door to China’s currency, according to Deutsche Bank.

Recommended Video

In a note on Tuesday, analysts pointed out that the current “petrodollar” regime goes back to a deal struck in 1974 when Saudi Arabia agreed to price its oil in dollars and invest surpluses in U.S. assets.

And because oil is a core input to global manufacturing and transport, supply chains have a natural incentive to dollarize, the note added. Indeed, Mideast oil and gas is used to make petrochemicals, fertilizer, and even helium, which is critical to chipmaking.

“The world saves in dollars in large part because it pays in dollars,” Deutsche Bank said. “The dollar’s dominance in cross-border trade is arguably built on the petrodollar: globally traded oil is priced and invoiced in USD.” 

In exchange for Saudi Arabia recycling its dollars back into the U.S., Washington guaranteed the kingdom’s security, which also involved stationing troops in the region, providing advanced weapons, and ensuring free navigation in the Strait of Hormuz.

That security shield was on display in 1990, when Saddam Hussein invaded Kuwait and threatened Saudi Arabia. The U.S. assembled a massive international coalition to quickly defeat Iraq and lower oil prices.

Fast forward to today, and America’s role in the Mideast looks vastly different. While the U.S. and Israeli militaries have severely degraded Iran’s capabilities, the regime still retains enough to combat power to selectively close off the Strait of Hormuz—unless countries negotiate safe passage and pay in Chinese yuan.

At the same time, Iran’s swarms of missiles and drones have inflicted significant damage on U.S. aircraft, radars and bases, while American air-defense systems have failed to completely protect Gulf allies’ critical energy infrastructure.

But even before the Iran war, the petrodollar regime had come under pressure, Deutsche Bank noted. U.S. sanctions on oil from Russia and Iran created an illicit trade that relied on other currencies, like the yuan.

Saudi Arabia also joined mBridge project, a central bank digital currency initiative led by China that takes on the dollar-payment infrastructure.

“The current conflict may expose further fault lines, by challenging the US security umbrella for Gulf infrastructure and the maritime security for global trade in oil,” analysts warned.

U.S. troops walk towards their barracks upon landing at Saudi Dhahran air base on Aug. 21, 1990.
GERARD FOUET/AFP via Getty Images

Until the U.S. can neutralize Iran’s salvos, the Gulf will continue to be pummeled. Not only are their oil shipments bottled up in the Persian Gulf, output has been slashed as supplies have nowhere to go.

Efforts by Gulf states to diversify from oil and become international finance and tourism hubs are also at risk amid the Iranian bombardment.

“Damage to Gulf economies could encourage an unwind in their foreign asset savings,” Deutsche Bank said. “In this context, reports that the passage for ships through the Strait of Hormuz may be granted in exchange for oil payments in yuan should be closely followed. The conflict could be remembered as a key catalyst for erosion in petrodollar dominance, and the beginnings of the petroyuan.”

Any loss of the dollar’s “exorbitant privilege” would also ripple through other areas of global finance, including the bond market. Due the dollar’s status as the world’s reserve currency, the federal government has long been able to issue debt at rates lower than investors would otherwise allow.

To be sure, dollar doomsayers have consistently been proven wrong, and the greenback has surged against other top currencies during the Iran war.

But there’s an even bigger potential threat to the dollar’s dominance than China’s currency: a permanent shift away from globally traded oil and gas.

With energy prices sky high, countries in Asia that rely heavily on Mideast supplies are scrambling to ration oil and gas while turning to coal, nuclear power, and renewables.

Demand for electric vehicles is also up across the globe, with Deutsche Bank saying energy choices of the Global South, Europe and North Asia will be key to track.

“A move away from oil could be as powerful as the pressure to price it in other currencies,” it added. “A world that becomes more self-sufficient in defence and energy could also be a world that holds less USD reserves.”

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.
About the Author
Jason Ma
By Jason MaWeekend Editor

Jason Ma is the weekend editor at Fortune, where he covers markets, the economy, finance, and housing.

See full bioRight Arrow Button Icon

Latest in Economy

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Economy

broker
EnergyMarkets
Oil is back to early war days, S&P 500 jumps to all-time high
By Stan Choe and The Associated PressApril 17, 2026
9 hours ago
Photo of Donald Trump (left) and Pete Hegseth (right)
Economynational debt
Something is different about Trump’s $1 trillion war on Iran and its stress on the national debt, Harvard Kennedy scholar says
By Sasha RogelbergApril 17, 2026
10 hours ago
Half of Iran’s workforce faces unemployment risk as the U.S.-Israel war’s ‘hidden target’ was the labor market, economist says
EconomyIran
Half of Iran’s workforce faces unemployment risk as the U.S.-Israel war’s ‘hidden target’ was the labor market, economist says
By Jason MaApril 17, 2026
10 hours ago
The $39 trillion national debt could break the all-important U.S. bond market, sparking a ‘vicious’ emergency, former Treasury secretary warns 
EconomyDebt
The $39 trillion national debt could break the all-important U.S. bond market, sparking a ‘vicious’ emergency, former Treasury secretary warns 
By Tristan BoveApril 17, 2026
11 hours ago
trump
EnergyIran
Iran and White House say the Strait of Hormuz is ‘completely open.’ But it definitely isn’t—at least for now
By Jordan BlumApril 17, 2026
12 hours ago
chris lehane
AIOpenAI
OpenAI policy chief says AI companies ‘need to do a much better job’ talking about AI as industry leaders face personal attacks
By Jake AngeloApril 17, 2026
13 hours ago

Most Popular

Pope Leo warned the world is in ‘big trouble’ if Elon Musk becomes the first trillionaire
Success
Pope Leo warned the world is in ‘big trouble’ if Elon Musk becomes the first trillionaire
By Preston ForeApril 17, 2026
20 hours ago
A world going broke: IMF says America's $39 trillion national debt is actually a global problem—and AI may be the only rescue
Economy
A world going broke: IMF says America's $39 trillion national debt is actually a global problem—and AI may be the only rescue
By Nick LichtenbergApril 16, 2026
1 day ago
Jeff Bezos pledged $10 billion for climate change. With the 2030 clock ticking, his wife, Lauren Sánchez Bezos, is leading the charge to spend it
Environment
Jeff Bezos pledged $10 billion for climate change. With the 2030 clock ticking, his wife, Lauren Sánchez Bezos, is leading the charge to spend it
By Sydney LakeApril 15, 2026
3 days ago
Germany already told its workers to ditch four-day weeks and work-life balance. Now the government wants to cut their pay for calling in sick, too
Success
Germany already told its workers to ditch four-day weeks and work-life balance. Now the government wants to cut their pay for calling in sick, too
By Orianna Rosa RoyleApril 16, 2026
2 days ago
Iran has reopened the Strait of Hormuz—but experts say it now holds a card that works ‘almost like a nuclear deterrent’
Energy
Iran has reopened the Strait of Hormuz—but experts say it now holds a card that works ‘almost like a nuclear deterrent’
By Eva RoytburgApril 17, 2026
13 hours ago
Older millennials are starting to act like boomers in the housing market—and pulling away from the pack
Real Estate
Older millennials are starting to act like boomers in the housing market—and pulling away from the pack
By Nick LichtenbergApril 17, 2026
21 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.