Crude futures rose in after-hours trading on Monday after President Trump called off a planned US military strike on Iran, easing immediate fears of a wider conflict in the Middle East while leaving markets cautious over the outlook for regional crude supplies.
Front-month West Texas Intermediate crude futures climbed 1.74% to $107.25 per barrel, while Brent futures were up 0.41% to $109.28 /bbl.
"The US and Iran remained far apart on a deal to end weeks of war and reopen the crucial Strait of Hormuz, with President Trump saying the clock is ticking for Iran," Saxo Bank strategists said in a note on Monday.
Trump called off a planned attack on Iran on Tuesday after the heads of three regional powers in the Middle East asked him to "hold off."
The US President said the leaders of Qatar, Saudi Arabia and the US told him serious negotiations are underway with Iran that will result in a deal acceptable to Washington.
However, Trump instructed the Pentagon "to be prepared to go forward with a full, large-scale assault of Iran, on a moment's notice, in the event that an acceptable deal is not reached."
Iran's Deputy Foreign Minister Kazem Gharibabadi said that any possible agreement with the US must ensure an end to the ongoing conflict on all fronts and lift the blockade and sanctions imposed against the country.
ING strategists said Monday that the ongoing supply disruptions mean the market has had to rely largely on inventory and, where possible, on alternative supply, including Russian crude.
Fundamental differences between the US and Iran remain unresolved, with Tehran demanding the return of frozen assets to the Iranian people and dismissing Washington's nuclear demands as political excuses.
On the supply front, the International Energy Agency executive director, Fatih Birol, said on Monday that commercial oil inventories were depleting rapidly, with only a few weeks' worth left due to the ongoing Middle East conflict and the closure of the Hormuz.
Birol, who is participating in the Group of Seven finance leaders meeting in Paris, told reporters that the release of strategic oil reserves had added 2.5 million barrels of oil per day to the market, but said these reserves "are not endless."
Meanwhile, Kpler said the US downstream operations are running at full capacity as refiners respond to tightening global fuel balances and surging export demand.
Refinery utilization is averaging almost 93%, supported by strong distillate and gasoline margins, lighter maintenance schedules, and rising reliance on Atlantic Basin supply, Kpler strategists said in a note on Monday.
Though a fragile ceasefire was reached in April, tensions between Iran and the US continue, with Tehran keeping the Hormuz closed, while Washington continues to blockade Iranian ports.
On Monday, Iran unveiled a new body, the Persian Gulf Strait Affairs Authority, to oversee activities related to the Strait.