Deutsche Bank has issued a stark warning that Iran's move to condition oil tanker passage through the Strait of Hormuz on yuan-denominated payments could mark a historic turning point for the petrodollar system. In a research note released this week, strategist Mallika Sachdeva described the ongoing US-Israel-Iran conflict as a “perfect storm” for the decades-old arrangement that has underpinned the U.S. dollar's global reserve status since 1974.
The Petrodollar Under Siege
The petrodollar system was born out of a 1974 agreement in which Saudi Arabia priced its oil exports in U.S. dollars in exchange for American security guarantees. That deal created sustained global demand for dollars and made them the default currency for energy trade. However, the geopolitical landscape has shifted dramatically. China, now Iran's largest oil buyer—purchasing roughly four times more Iranian crude than the United States—has long promoted yuan-based energy settlements through initiatives like Project mBridge. With the Iran conflict escalating, Tehran is leveraging its control over the Strait of Hormuz, which carries about one-fifth of the world's oil and gas flows, to demand yuan payments for safe passage.
Reports confirm that at least 11.7 million barrels of oil have been moved through Chinese-linked tankers since late February 2026, with many vessels going dark to avoid tracking. China has reportedly held discussions with at least eight non-Middle Eastern countries to secure yuan-based oil transit through the strait. This direct challenge to dollar-denominated energy trade is already reshaping market dynamics.
Deutsche Bank: Incremental Erosion, Not Collapse
Sachdeva's note is careful to avoid predicting an imminent collapse of the petrodollar. Instead, it emphasizes incremental but structurally significant erosion. She writes, “The long-term legacy of the Iran conflict for the dollar could be the way it tests the foundations of the petrodollar regime.” The bank is monitoring yuan-denominated oil flows through Hormuz as the key indicator going forward. Already, sanctioned Iranian and Russian oil accounts for roughly 13 million barrels per day—about 14% of global supply—and most of this volume has traded outside dollar rails for years. The conflict widens that channel and could encourage other producers, such as Venezuela, to follow suit.
The note identifies several downstream risks. Gulf economies absorbing damage from the conflict may unwind dollar-denominated asset holdings. Sovereign wealth funds and central banks could diversify away from greenbacks faster if U.S. security guarantees in the region appear weakened. West Texas Intermediate crude has traded above $90 per barrel, reflecting market tension around Hormuz risk. Currency markets have shown modest yuan strength in select sessions, though analysts emphasize no structural shift has been confirmed yet.
Broader De-dollarization Context
The Iran conflict accelerates a trend already in motion. BRICS nations have pushed non-dollar trade agreements. Russia and China settled energy contracts in yuan before the current conflict. Central banks globally have been increasing gold and non-dollar reserve holdings. Past oil shocks, including those of the 1970s, ultimately reinforced dollar strength rather than eroding it, but the scale of yuan-based trade and the depth of China's financial infrastructure make this episode different. Deutsche Bank's analysis suggests the monetary pressure is already being applied, and whether de-escalation occurs before permanent structural damage remains an open question. Markets as of Wednesday reflect cautious optimism, but the fate of the petrodollar hangs in the balance.