The conflict with Iran could shake the foundations of global currencies: the petrodollar system faces a critical test.
2026-03-25 23:16:20

Analysts point out that the impact of the conflict in Iran may extend far beyond energy price fluctuations. Its more profound potential consequence is that the global energy settlement system may be weakened, thereby diminishing the dollar's core position in the international reserve and trade system.
The energy settlement system may be developing cracks.
For a long time, the US dollar's dominant position in the global economy has been closely linked to the energy market. International oil trade is generally priced, invoiced, and settled in US dollars. This mechanism requires countries to hold large amounts of US dollar assets when importing energy, thereby consolidating the US dollar's core position in the global reserve system.
However, this logic is facing challenges under the current circumstances.
If shipping through the Strait of Hormuz is substantially disrupted, or if the regional security environment continues to deteriorate, some countries may be forced to explore alternative settlement methods to reduce their dependence on the single currency system. Analysts believe that this path of "passive de-dollarization" may be more realistic than policy-driven initiatives.
Deutsche Bank warns: A "perfect storm" is forming.
In her latest report, Deutsche Bank strategist Mallika Sachdeva pointed out that the current situation constitutes a "perfect storm" for the petrodollar system.
The report argues that the dollar's dominance in cross-border trade is largely built on the petrodollar cycle, and the foundations of this cycle—energy flows, security guarantees, and capital repatriation—are all changing simultaneously.
Specifically, three structural transformations are particularly crucial:
First, the United States has transformed into a net energy exporter, and its dependence on Middle Eastern oil has decreased significantly.
Secondly, the focus of Middle Eastern oil exports has clearly shifted to Asia, with emerging economies such as China becoming the main demanders.
Furthermore, regional conflicts have led to a renewed assessment of the stability of U.S. security commitments by the market.
Against this backdrop, the traditional cycle of "safe exchange for dollars and dollar repatriation to US assets" faces the risk of marginal weakening.
Non-dollar transactions are expanding
In fact, the "de-dollarization" of oil trade did not begin with this round of conflict.
In recent years, affected by sanctions, Iran and Russia have adopted non-dollar settlement methods for energy transactions on a considerable scale. The two countries together account for approximately 14% of global crude oil consumption, and their changing trading model has had a demonstrative effect on the global energy market.
At the same time, some Gulf countries are also experimenting with diversified settlement methods. For example, they are conducting cross-border payment trials through central bank digital currency infrastructure and introducing non-dollar pricing methods in certain transactions.
There are also reports in the market that, during the recent period of tension, some energy transportation arrangements have seen conditional settlements denominated in RMB, indicating that alternative mechanisms are moving from the margins to practical application.
The reserve system may face a reassessment.
The core of the petrodollar system lies not only in the transactions themselves, but also in the global capital circulation that results from them.
In the traditional model, energy-exporting countries accumulate dollar reserves through oil revenues and invest them in assets such as U.S. Treasury bonds, thereby enabling the United States to finance itself at relatively low costs in the long term. This mechanism has been described as an "excessive privilege" enjoyed by the United States.
However, if energy trade gradually shifts to multi-currency settlement, and some oil-producing countries adjust their foreign exchange reserve structures, the demand for dollar assets may be affected, which in turn will have a profound impact on the global capital flow pattern.
Changes in the energy structure exacerbate long-term pressures
In addition to geopolitical factors, the global energy structure transformation is also weakening the long-term foundation of the petrodollar system.
With the advancement of renewable energy, nuclear energy, and domestic energy development, countries are expected to reduce their dependence on imported fossil fuels. This means that the demand for the US dollar as a medium of exchange for energy may also decrease.
Analysts point out that a world that is more self-reliant in terms of energy and security is also likely to have a more diversified foreign exchange reserve structure.
The dollar's status may shift from "dominant" to "competitive".
Nevertheless, most analyses suggest that this process is more likely to be a gradual evolution rather than a sudden turning point.
In the short term, the US dollar still possesses advantages in liquidity and institutions, and its core position in the global financial system is unlikely to be replaced quickly. However, in the medium to long term, with the increase in settlement currency options, the dollar's monopoly may gradually shift towards a multipolar competitive landscape.
It is worth noting that the US dollar did not experience a typical surge in safe-haven demand during this round of geopolitical conflicts, a phenomenon that some market participants have interpreted as a signal of a "change in its marginal attractiveness."
Conclusion: A conflict, or a structural shift?
Overall, the conflict in Iran is pushing what were previously potential structural changes into reality.
Whether this will fundamentally transform the petrodollar system remains to be seen. However, it is certain that the interconnectedness of the global energy, financial, and security systems is entering a more complex and uncertain phase.
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