[Salon] Gulf War Tests the Foundations of the Petrodollar



https://moderndiplomacy.eu/2026/03/25/gulf-war-tests-the-foundations-of-the-petrodollar/

Gulf War Tests the Foundations of the Petrodollar

Sana KhanMarch 25, 2026
photo: unsplash

The ongoing war in Iran is forcing Gulf states to question the value of the U.S. security guarantee. Since the U.S. and Israel launched strikes on February 28, it has been the Gulf neighbors that have borne the brunt of retaliatory missiles and drone attacks. Critical energy infrastructure has been damaged, economies disrupted, and confidence shaken in what was long assumed to be an unassailable U.S. protection umbrella.

The Petrodollar Bargain

Beyond the immediate military consequences, the conflict has triggered a potential rethink of the Gulf’s financial, trade, and military ties, particularly those underpinning the petrodollar system and the hundreds of billions of dollars in reserves and sovereign wealth funds that support it. For decades, the Gulf states and Washington have operated on an implicit bargain: U.S. protection in exchange for Gulf oil priced in dollars, and the recycling of those “petrodollars” into U.S. stocks, bonds, arms, and technology. Saudi Arabia, the United Arab Emirates, Qatar, Oman, and Bahrain all peg their currencies to the dollar, requiring large supporting reserves of roughly $800 billion. At the same time, sovereign wealth funds from the Gulf Cooperation Council manage more than six trillion dollars globally, heavily invested in U.S.-linked assets, while Saudi and UAE funds alone hold nearly 250 billion dollars in U.S. Treasury securities. This system has been central to the dollar’s status as the world’s reserve currency and to U.S.-Saudi relations since the 1970s.

Pillars of the Petrodollar Under Strain

The petrodollar rests on three pillars: U.S. demand for oil, oil priced in dollars, and the Gulf’s reliance on U.S. security. Each of these pillars is now under strain. America’s position as a net energy exporter has reduced its reliance on Middle Eastern oil. Dollar pricing of oil was already under pressure before the war, as countries including China, Russia, and Iran experimented with non-dollar energy trade. Most acutely, missile and drone attacks on Gulf infrastructure have exposed vulnerabilities in the U.S. protection guarantee, undermining regional confidence.

A Shift Toward Non-Dollar Energy Trade

The conflict may accelerate a shift toward trading energy in other currencies. Former Goldman Sachs economist Jim O’Neill has noted that Gulf states may increasingly turn to China, India, and other major oil consumers. Saudi Arabia now sells four times as much oil to China as to the United States. Most Middle Eastern oil flows increasingly favor Asia. Sanctioned Russian and Iranian oil is already being traded in non-dollar currencies. Saudi Arabia has been localizing its defense industry and experimenting with non-dollar oil payments. Collectively, these trends suggest a gradual erosion of the petrodollar system and a potential diversification away from U.S.-linked financial arrangements.

Long-Term Implications for Global Finance

The long-term implications extend beyond immediate trade flows. The conflict could accelerate a transition toward “petroyuan,” “petrorupee,” or even “petroeuro” reserves. If the global energy shock hastens a shift away from fossil fuels, the impact on the petrodollar could be even more profound. Reports that oil tankers might be allowed passage through the Strait of Hormuz if oil is denominated in yuan highlight the strategic stakes and the global attention focused on Gulf financial decisions. Investors in Gulf sovereign wealth funds are now under pressure to reconsider allocations in U.S. assets, regardless of whether the war ends quickly or drags on.

Strategic and Economic Analysis

The war in Iran is testing the resilience of the Gulf-U.S. financial and security relationship. The petrodollar system, long a pillar of global finance and U.S. influence, faces pressures on multiple fronts: strategic, economic, and geopolitical. Gulf states may seek alternative security arrangements or diversify alliances, reducing reliance on the United States. Sovereign wealth fund allocations and dollar-denominated assets may be reviewed, particularly as reconstruction costs rise. A shift to non-dollar energy trade could diminish the dollar’s global role, especially as Asia becomes the primary energy consumer.

Conclusion: A Potential Turning Point for Global Power

The implications of the Gulf war extend far beyond immediate military or energy disruptions. At its core, the conflict represents a structural test of the global financial system, the strategic credibility of the United States, and the long-term stability of the petrodollar arrangement. For decades, the Gulf’s dollar-linked economies have relied on a stable U.S. security guarantee in exchange for dollar-denominated energy flows, a system that has reinforced American economic and geopolitical dominance worldwide. The current crisis, however, has exposed vulnerabilities on all fronts. Energy infrastructure has been damaged across multiple countries, sovereign wealth funds are under pressure to re-evaluate risk, and Gulf states are increasingly trading energy in non-dollar currencies.

If these trends continue, the long-term repercussions could include a more multipolar financial order in which the dollar’s preeminence is challenged by the yuan, rupee, or euro in energy trade and reserve holdings. Strategically, Gulf states may explore alternative security arrangements, diversifying partnerships beyond the United States, while also deepening economic ties with rapidly growing Asian powers. Financially, sovereign wealth funds and reserves may be reallocated, reducing the automatic recycling of petrodollars into U.S. markets, with implications for American interest rates, currency stability, and global capital flows.

Even if hostilities end, the war has set in motion forces that may reshape the global balance of economic power, energy security, and strategic influence in the Middle East. The Gulf’s reassessment of the U.S. security umbrella, coupled with a gradual move toward non-dollar energy trade, could mark the beginning of a profound and enduring shift in the international economic and geopolitical order. In this sense, the Gulf war is not simply a regional conflict: it is a potential turning point with consequences for the global financial system, the stability of energy markets, and the strategic credibility of the United States for decades to come.

With information from Reuters.



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