The narrative

The Strait of Hormuz closes and the takes arrive on schedule. Deutsche Bank says the Iran war could be "the making of the petroyuan."^[6] Fortune runs the explainer about dollar dominance and the weakening US security shield.^[8] Social media fills with the same story it fills with every time oil markets get disrupted: the petrodollar is dying, the dollar is finished, the yuan will replace it, and whoever is telling you otherwise is naive about the shifting sands of geopolitical power.

The problem is not that the analysis is wrong in every particular. Some of it is directionally true. The problem is that the entire frame — the dollar's dominance rests on oil being priced in dollars — misidentifies the load-bearing structure. It mistakes a decorative column for a foundation wall.

The agreement that never existed

Start with the history, because the history is where the narrative first goes wrong.

In June 2024, a story went viral: Saudi Arabia had allowed a 50-year petrodollar agreement to expire, opening the door to oil sales in yuan, euros, and even bitcoin. The story was pushed by a combination of crypto promoters, gold bugs, and — as multiple analysts noted — Russian social media accounts.^[5]

The agreement did not exist. There was no 50-year treaty requiring Saudi Arabia to price oil exclusively in dollars. Historians who examined the declassified 1974 meeting minutes between Henry Kissinger and Prince Fahd found discussions about Middle Eastern political issues, with no mention of petrodollar arrangements.^[4] What did exist was the United States-Saudi Arabian Joint Commission on Economic Cooperation, formed in June 1974. It expired in June 2024. A Government Accountability Office official confirmed it contained no formal agreement on oil trade currency.^[11]

What the US and Saudi Arabia actually agreed on in the 1970s was something different: Saudi Arabia would channel its oil surplus revenues into US Treasury bonds, and the US would guarantee Saudi security. The petrodollar, in its original incarnation, was about recycling — where the money went after the oil was sold — not about what currency appeared on the invoice.

This distinction matters because the recycling mechanism is largely dead already, and has been for years.

The surplus that isn't there

Brad Setser, a former US Treasury official now at the Council on Foreign Relations, laid out the numbers the week before the Hormuz escalation.^[13] His core observation is simple and devastating to the petrodollar narrative: at $60-70 a barrel, the oil exporters just weren't generating large surpluses.

Saudi Arabia's external deficit was offsetting Russia's surplus. The two biggest oil exporters — roughly 15 million barrels per day of exports combined — were not generating petrodollars, petroeuros, or petroyuan. Saudi Arabia has been so eager to build up its sovereign wealth fund that it was borrowing in the global bond market to buy equities. The Saudis were not providing stable funding for the US fiscal deficit. They were net borrowers.

The remaining oil surplus was concentrated in the GCC-3 (UAE, Qatar, Kuwait) and Norway, totaling roughly $200-250 billion per year. And most of those "petrodollars" were actually petro-equities — the GCC countries were putting the bulk of their funds not into liquid dollar deposits or bonds but into public and private equity through sovereign wealth funds.^[13]

Contrast that with the actual source of offshore dollars. China's surplus, measured correctly, likely approached $1 trillion before the oil shock, with another $500 billion-plus in the main Asian surplus economies. As Setser put it: the big source of eurodollars — offshore dollars sloshing around Hong Kong and Singapore and making their way into global markets — were Chinese exporters' offshore funds and supply-chain banks. Not oil exporters.

The petrodollar, in other words, had already been eclipsed by the export-dollar. The flow of capital that actually matters for dollar liquidity and Treasury demand was coming from Shenzhen and Taipei, not Riyadh and Abu Dhabi. By Bloomberg's analysis, the petrodollar probably stopped having significant influence on global financial markets three decades ago.^[5]

The scale problem

The more fundamental issue with the petrodollar narrative is arithmetic.

The global crude oil market is worth roughly $3-4 trillion per year. That is a large number in isolation. It is not a large number in the context of dollar-denominated financial flows.

The foreign exchange market turns over $9.6 trillion per day.^[1] The dollar is on one side of 89.2% of those transactions — up from 88.4% in 2022. That means approximately $8.6 trillion in dollar-denominated FX transactions happen every single day. The entire annual global oil market is worth less than half a day's dollar FX volume.

The US Treasury market has roughly $30 trillion in marketable debt outstanding, with over $900 billion traded daily.^[2] The US fixed-income market totals $58.2 trillion — 40% of the global total. More than 80% of emerging-market hard-currency debt, global high yield, and securitized credit is issued in dollars.

Put differently: if every barrel of oil sold globally were repriced in yuan tomorrow — every single one — the dollar would lose a flow that amounts to a fraction of one day's forex turnover. The invoicing currency of oil is not what makes the dollar the dollar.

What actually holds the system together

The dollar's dominance rests on three things, none of which are about oil invoicing.

First, market depth. The Treasury market is the deepest, most liquid sovereign bond market in the world. There is no alternative of comparable scale. The eurozone doesn't issue a unified sovereign bond. Chinese government bonds are constrained by capital controls. When a central bank, sovereign wealth fund, or pension fund needs to park $50 billion in safe, liquid assets that it can sell in an afternoon without moving the price, there is exactly one market that can absorb that trade.^[9]

Second, institutional infrastructure. The dollar settlement system — Fedwire, CHIPS, the correspondent banking network — processes trillions daily. The legal framework around US capital markets, whatever its imperfections, provides property rights and contract enforcement that no alternative currency can currently match. China's CIPS system processed $245 trillion in yuan-denominated transactions in 2025 — impressive growth, but still operating within a system where the Chinese government maintains capital controls and can freeze accounts at will.

Third, network effects. Trade invoicing, commodity pricing, cross-border lending, FX reserves — these reinforce each other. The dollar accounts for 88% of FX transactions, 58% of FX reserves, and 54% of global trade.^[3] A country can decide to invoice oil in yuan. It then needs to decide what to do with the yuan. If it wants to buy semiconductors from Taiwan, it converts to dollars. If it wants to buy German machinery, it might use euros, but the German exporter's bank likely settles the interbank leg in dollars. The currency of oil invoicing is the visible tip of a system whose mass sits below the waterline.

The Hormuz gambit

Iran's reported offer to allow limited tanker transit through the Strait of Hormuz in exchange for yuan-denominated settlement is real, and it is worth taking seriously — not because it threatens the dollar system, but because it reveals the actual dynamics at play.^[7]

The Hormuz closure removed roughly 20% of global oil supply and sent Brent past $120 per barrel. That is a genuine crisis. But the crisis is about physical barrels — supply, logistics, refinery feedstock — not about settlement currency. A Japanese refiner scrambling to source replacement crude from West Africa or Guyana is not thinking about the metaphysics of dollar hegemony. It is thinking about whether it can get heavy sour crude to Yokohama before its storage runs out.

Iran's leverage here is not monetary but physical. It controls a chokepoint. The yuan demand is a political condition attached to that physical leverage, not a market-driven shift in currency preference. If — when — the strait reopens, the compulsion to settle in yuan disappears with it. Saudi Aramco will continue pricing its official selling prices in dollars, because its currency is pegged to the dollar, because it holds $135 billion in US Treasuries, and because the entire financial architecture of the Gulf Cooperation Council is dollar-denominated.

The irony of the Hormuz crisis, as Setser observed, is that it actually hurts the traditional petrodollar countries. Iraq, Kuwait, Qatar, and the UAE — roughly 10 million barrels per day of exports — are the ones whose shipments are stranded. Some may need to dip into reserves. The windfall gains go to Russia, the Central Asian exporters (Kazakhstan, Azerbaijan), Norway, and Canada — collectively exporting another 10 million barrels per day through routes that don't transit Hormuz. Every $10 increase in traded oil prices means roughly $35 billion in additional annual proceeds for those producers.^[13] Russia, which is sanctioned and settling in yuan and rubles, is not going to stash its windfall in dollars. Norway will buy more European bonds. Canada will buy manufactured goods. None of this generates petrodollar recycling into Treasuries.

What is actually changing

None of this means the dollar system is static. It isn't. The dollar's share of global FX reserves has declined from 72% in 2001 to roughly 56% in mid-2025.^[3] That is a real trend. Russia's forced de-dollarization after 2022 — moving from 41% dollar holdings to under 18% — is a real data point. China's cross-border yuan settlement reached 13 trillion yuan in the first three quarters of 2025, up 11% year-on-year, now accounting for 39% of China's goods trade.^[12]

But the mechanism driving these shifts is not oil invoicing. It is sanctions risk. Countries that face — or fear facing — exclusion from the dollar system are building alternatives not because oil pricing changed, but because the US demonstrated in 2022 that it would freeze a G20 nation's reserves. That is the structural change that matters. It is about the weaponization of financial infrastructure, not the currency on an oil invoice.

J.P. Morgan's research puts it clearly: de-dollarization is most visible in commodity markets, where a growing share of energy trades in non-dollar contracts.^[10] But commodity invoicing is the most cosmetic layer of dollar dominance. The structural layer — Treasury market depth, settlement infrastructure, legal architecture — remains intact. The yuan's share of FX transactions rose to 8.5% in 2025. The dollar's was 89.2%.^[1]

The more consequential shift to watch, per Setser, is what happens to the Asian surplus. At $1.4 trillion before the shock and rising on the back of AI chip demand, the Asian current account surplus is the actual firehose of offshore dollar liquidity. A $100-per-barrel oil shock cuts it roughly in half — but even halved, it dwarfs anything the oil exporters were generating.^[13] The war's first-order effect on dollar liquidity is not about petrodollars disappearing. It is about fewer eurodollars flowing through Hong Kong and Singapore as Asia's surplus shrinks to pay its energy bill.

What would actually threaten the dollar

The petrodollar narrative is popular because it is simple and dramatic: one agreement, one commodity, one rival currency. The actual threats to dollar dominance are slower, less cinematic, and have nothing to do with oil.

They include: sustained US fiscal deterioration that erodes confidence in Treasury safety. Policy unpredictability that undermines the institutional credibility foreign investors rely on. Continued weaponization of the dollar system that pushes more countries to build workarounds. The eventual development of a eurozone-wide safe asset, or the liberalization of Chinese capital markets — neither of which appears imminent.

The dollar's position is not guaranteed. But it will not be lost because Iran demands yuan for Hormuz transit, or because Saudi Arabia hypothetically invoices a cargo in renminbi. It will be lost, if it is lost, because the US Treasury market stops being the safest and deepest pool of liquid assets on earth. That is a fiscal and institutional question, not a commodity-pricing question.

The people most worried about the petrodollar tend to be the least worried about the deficit. They have the causation backwards.

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Things happen

The global oil trade is worth roughly one-third of one day's forex turnover. Saudi Arabia's currency has been pegged to the dollar at 3.75 riyals since 1986. The BIS Triennial Survey found the dollar's FX market share actually increased between 2022 and 2025. China maintains capital controls that prevent free convertibility of the yuan — the single largest structural barrier to reserve currency status. The "petrodollar agreement expiration" story in June 2024 was rated False by PolitiFact. Russia-China trade settled 55% in yuan by 2025, driven by sanctions, not oil pricing preferences. The US fixed-income market is 40% of the global total. Iran's Hormuz transit offer is a physical chokepoint play, not a monetary architecture play. The dollar has actually strengthened against major currencies during the Iran war. Saudi Arabia was borrowing in global bond markets to fund its SWF before the crisis — the opposite of petrodollar recycling. China's pre-shock surplus (~$1 trillion) was roughly four to five times the entire GCC surplus. Norway's sovereign wealth fund was buying European bonds, not US Treasuries, as portfolio ballast against its equity holdings.