Oil prices rose for a third session early on Tuesday as a faltering ceasefire between the United States and Iran keeps the Strait of Hormuz closed, continuing the largest-ever energy supply shock.
West Texas Intermediate crude oil for June delivery was last seen up US$3.23 to US$101.30 per barrel, while July Brent oil was up US$3.32 to US$107.53.
The rise comes as a shaky ceasefire in the war on Iran threatens to end, with U.S. President Trump on Monday saying it was on "massive life support" after Iran rejected a U.S. peace plan and Trump rejected Iran's response.
The lack of a deal continues Iran's blockade of the Strait of Hormuz, blocking exports from Persian Gulf nations that accounted for 20% of daily oil demand. Oil prices have climbed by nearly half since the Feb. 28 start to the war, with stalemate between the warring nations offering no quick relief to countries searching for alternative supply.
"Oil prices climbed ... as the global oil market continued to tighten amid limited prospects for a reopening of the Strait of Hormuz. The move followed Trump casting doubt over a ceasefire with Israel signalling the war is not over," Saxo Bank wrote.
Trump will travel to Beijing tomorrow for a summit meeting with Xi Jinping, his Chinese counterpart, a major buyer of Iranian oil and an ally of the country. However the Wall Street Journal reported Xi is unlikely to press Trump to end the war.