The price of oil has fallen further after the International Energy Agency forecast weaker demand in 2015.
The IEA, a consultancy to 29 countries, said supply and demand would take “some time” to respond to sharp falls in oil prices.
It said it was too early to expect low oil prices to start constricting a US supply boom.
On Friday, Brent crude fell to below $63 a barrel, its lowest price since July 2009.
The price of Brent fell to $62.50 a barrel at one point before recovering slightly to $62.67. US crude was trading below $59 a barrel.
The IEA cut its forecast for global oil demand growth next year by 230,000 barrels per day to 900,000 barrels per day on the expectation of lower fuel consumption in Russia and other oil-exporting countries.