World oil prices slid another 4 percent to new five-year lows on Monday, as expectations of a deeper slump next year and a prediction by a core OPEC member that crude will remain at $65 for several months triggered another round of selling.
U.S. crude oil settled 4.2 percent lower at $63.05 per barrel, at a new five-year low, its third worst drop of of the year. Brent crude for January fell was last down 4 percent at $66 a barrel, after slipping to a session low of $65.93—its lowest since October 2009.
The chief executive of Kuwait's national oil company said oil prices were likely to remain around $65 a barrel for the next six to seven months, the latest indication that Gulf producers were content to ride out the latest rout.
The pessimistic outlook deepened the decline in a market that many traders now see as having little chance of rebounding.
"When these things go lower, they tend to go much farther than people anticipated," said Tariq Zahir at Tyche Capital. "I definitely think we're going to keep heading lower, everyone is trying to pick a bottom."