SINGAPORE: Oil prices fell by more than one percent on Monday as investors eyed rising supplies in Saudi Arabia, while U.S. President Donald Trump kept up the pressure on the world's top producer to make up for disruptions elsewhere.
Brent crude oil futures were at $78.35 per barrel at 0231 GMT, down 88 cents, or 1.1 percent, from their last close.
U.S. West Texas Intermediate crude futures were down 89 cents, or 1.2 percent, at $73.26 a barrel, after rising more than 8 percent last week.
Trump said in a tweet on Saturday that Saudi Arabia's King Salman bin Abdulaziz Al Saud had agreed to produce more oil. The White House later walked back the president's comments, saying the king said his country can raise oil production if needed.
Saudi Arabia's output is up 700,000 bpd from May, a Reuters survey found on Friday, and close to its 10.72 million bpd record from November 2016, more than making up for disruptions elsewhere within the Organization of the Petroleum Exporting Countries (OPEC).
A source last week told Reuters Saudi Arabia produced 10.8 million bpd in June and it aimed to pump 11 million bpd in July.
"If his (Trump's) entreaty to the Saudis to prime the pumps and get them producing again proves correct, then it will go a long way to redress the supply disruptions," said Greg McKenna, chief market strategist at futures brokerage AxiTrader.
Voluntary supply cuts by OPEC and some non-OPEC suppliers like Russia have tightened world oil markets since 2017, and unplanned disruptions from Canada to Venezuela and Libya along with upcoming new U.S. sanctions against major exporter Iran have sparked concerns of supply shortfalls.
Despite the apparent supply relief from Saudi Arabia, oil markets remain tense over escalating trade disputes between the United States and other major economies including China, the European Union, India and Canada, as well as the looming new U.S. sanctions against Iran.
"Recurring salvos in the trade war and falling asset prices raise the question of how much tariffs could damage the global economy, U.S. bank JP Morgan said in a note.
The bank said a "medium-intensity (trade) conflict would likely reduce global economic growth by at least 0.5 percent, "before accounting for tighter financial conditions and sentiment shocks."
Trump warned close U.S. allies in an interview that aired on Sunday with a threat to sanction European companies that do business with Iran.
"The Trump Administration's plan for Iran sanctions is now abundantly clear. They seek to push Iranian exports of crude, condensate, and oil products to zero," energy consultancy FGE said in a note.
"Overall, 2.4-2.7 million bpd of Iranian crude/condensate is at risk by year end ... We must all be prepared for a potentially major price volatility ahead," FGE added. - Reuters