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.