Strait of Hormuz crisis challenges petrodollar supremacy

The crisis unfolding around the Strait of Harmuz—the narrow waterway through which roughly one-third of global seaborne oil passes—is forcing a fundamental reassessment of the petrodollar system that has underpinned US financial hegemony for decades. The informal arrangement, in which Gulf oil producers price crude in dollars and reinvest revenues in US assets, emerged as a cornerstone of American economic power following the collapse of the Bretton Woods system. But with the US-Israeli campaign against Iran now in its second month, the strait’s uncertain fate is raising urgent questions about whether that order can survive.

Gulf allies rethink security-for-loyalty pact

The ongoing war is placing Gulf monarchies in a difficult position. Perceptions that Washington is recalibrating its security priorities in the region have eroded trust among key US allies. Critics argue that the long-standing bargain—security guarantees in exchange for dollar loyalty—has become increasingly one-sided, prompting Gulf capitals to quietly explore alternative arrangements.

Yuan and riyal emerge as payment alternatives

More consequential are emerging reports that Iran is allowing oil shipments through the strait to be transacted in currencies other than the dollar, particularly the Chinese yuan and the Iranian rial. If Gulf states, driven by security concerns, begin to distance themselves from the dollar-based energy trade, the ripple effects could be profound: reduced demand for the greenback, waning appetite for US Treasury debt, and a gradual erosion of the dollar’s reserve currency status.

Powell warns of fiscal fragility, dollar’s reserve share declines

Federal Reserve Chair Jerome Powell recently highlighted underlying vulnerabilities, warning that US national debt—now at $38.86 trillion and growing faster than the economy—could end badly if left unaddressed. Meanwhile, data from The Kobeissi Letter shows the dollar’s share of global foreign exchange reserves has fallen to approximately 40 percent, the lowest level in two decades. Central banks have been diversifying into gold, signaling a clear shift in reserve preferences.

Iran advances legislation on strait tolls in rials

Adding to the momentum, the Iranian parliament’s National Security and Foreign Policy Committee has approved draft legislation regulating passage through the strait. Committee member Mojtaba Zarei announced that the bill, which now moves to the full parliament, includes provisions for tolls to be set in rials, a ban on US and Israeli vessels, and restrictions on countries participating in unilateral sanctions against Tehran. The draft also addresses security coordination with Oman regarding the strait’s legal status.