Iranian oil shipments into China are set to fall in the near-term after new U.S. sanctions on a refiner and tankers, driving up shipping costs, but traders said they expect buyers to find workarounds to keep at least some volumes flowing.

"So-called 'teapot' refinery purchases of Iranian oil provide the primary economic lifeline for the Iranian regime, the world's leading state sponsor of terror and the primary backer of the murderous Houthis in Yemen," U.S. Treasury Secretary Scott Bessent said in a post on X.