TOKYO, Nov 7 (Reuters) – Oil prices edged lower on Tuesday after posting the biggest gains in six weeks a day earlier, buoyed by moves by Saudi Arabia’s crown prince to tighten his grip on power and rising tensions between the kingdom and Iran.
U.S. West Texas Intermediate (WTI) crude CLc1 slipped 10 cents, or 0.2 percent, to $57.25 a barrel by 0231 GMT. The contract surged 3 percent on Monday, the biggest percentage gain since late September.
Brent crude futures LCOc1 were down 19 cents, or 0.3 percent, at $64.08. On Monday, they closed 3.5 percent higher, also their biggest percentage gain in about six weeks.
Both benchmarks hit their highest since mid-2015 during the session.
Saudi Crown Prince Mohammed bin Salman moved to shore up his power base with the arrest of royals, ministers and investors, including billionaire Alwaleed bin Talal and the powerful head of the National Guard, Prince Miteb bin Abdullah. (Full Story)
The arrests, which an official described as part of “phase one” of the crackdown, are the latest in a series of dramatic steps by Prince Mohammed to tighten his grip at home. (Full Story)
Tensions between Saudi Arabia and Iran also rose further. The Saudi Arabia-led military coalition fighting against the Houthi movement in Yemen said on Monday it was closing all Yemeni air, sea and land crossings. (Full Story)
The move came after a missile was fired toward Riyadh on Saturday. Saudi Arabia and its Gulf allies have said they see Iran as responsible for the Yemen conflict and, on Monday Saudi Foreign Minister Adel al-Jubeir said his country reserves the right to respond to Iran’s “hostile actions”. (Full Story)
Iranian Foreign Minister Mohammad Javad Zarif said Saudi Arabia was blaming Tehran for the consequences of its own “wars of aggression”. (Full Story)
“A potential conflict could limit significant supply out of the region,” Shane Chanel, equities and derivatives adviser at ASR Wealth Advisers, said in an email. “We see WTI above $60 and may even see Brent above $70 by the end of the year.”
Despite the moves by the Saudi heir, analysts said they do not see Saudi Arabia, the world’s largest oil exporter, changing its policy of boosting crude prices for now.
Saudi Energy Minister Khalid al-Falih said that while there is “satisfaction” with a production-cutting deal between the Organization of the Petroleum Exporting Countries and other producers led by Russia, the “job is not done yet.” (Full Story)
OPEC is expected to extend a cut of around 1.8 million barrels per day into the whole of 2018. (Full Story)
U.S. drillers cut eight oil rigs last week, the biggest reduction since May 2016, helping to support prices. (Full Story)
While supplies are tightening, analysts said demand remains strong.
Speculators increased their bets on gains in the price of Brent to a record high. (Full Story)
(Additional reporting by Jane Chung in SEOUL; Editing by Richard Pullin and Kenneth Maxwell)