Brent and WTI crude prices fell 2.2 and 2.05 USD/barrel respectively after U.S. Treasury unveiled new Iran sanctions targeting five sectors (digital assets, tech, gold, aviation, maritime). Market reaction was muted because sanctions details met expectations and China's continued oil purchases from Iran limit export impact. Shipping tensions in the Strait of Hormuz remain elevated but below crisis levels, constraining 20% of global oil supply flow.