The eight buyers are China and India — Iran’s biggest customers — as well as Japan, South Korea, Italy, Greece, Turkey and Taiwan.

“The sanctions (are) obviously one of the major movers, I think, which is influencing prices,” said Daryl Liew, head of portfolio management at financial services company Reyl Singapore. He also pointed to stronger-than-expected economic growth data from China last week, which could be driving demand expectations.

Of the buyers of Iranian oil, he said India could suffer the most from Washington’s move.

“I think India is probably one of the key potential countries that might suffer from a higher oil price, in terms of their current account deficit, for example. And that’s going to be basically putting pressures on inflationary pressures as well,” Liew said, speaking on CNBC’s “Street Signs” on Monday.

“No doubt the Indian central bank has … turned to a more dovish stance in recent meetings. But if oil prices continue to hit higher, and inflationary pressures come back into the picture again for India especially, then the central bank probably has to reverse the dovish moves,” he concluded.