LONDON (AFP) - The price of oil fell below 71 dollars on Wednesday, its lowest level for more than 13 months, as recession fears raised concerns about a prolonged drop in energy demand, analysts said. The global financial crisis is hitting world demand for oil, although the effect on emerging economies is unclear, OPEC said on Wednesday. The Organization of Petroleum Exporting Countries slashed its estimate of growth in demand this year and shaved its estimate for 2009, largely because of an "excessive" easing of demand in the United States, the single biggest energy market. Prices also fell Wednesday on news that a Nigerian court had ordered Anglo-Dutch energy giant Royal Dutch Shell to hand over land to locals, a key demand of armed rebels camped in Nigeria's oil-producing region. Brent North Sea crude for November delivery fell to 70.70 dollars a barrel " the lowest level since late August 2007 " before recovering to 70.93 dollars, down 3.60 dollars compared to Tuesday's close. New York's main contract, light sweet crude for November, shed 3.40 dollars to 75.23 dollars a barrel after hitting an intra-day low point of 74.92. Brent crude has fallen by more than half from a record high 147.50 dollars in July, when prices rocketed on fears of supply disruptions. Oil prices are sliding on "concerns that the coordinated action by central banks over the last week will not be enough to rescue economies from falling into a global recession and hence weighing on oil demand," Sucden analyst Nimit Khamar said. A top US central banker, Janet Yellen, said Tuesday that the United States "appears to be in a recession." There are also growing fears Japan and Europe are heading for a spell of economic stagnation or recession. The German economy is heading for a slowdown but the downturn will not be a long-lasting one, Chancellor Angela Merkel said Wednesday. Meanwhile a Nigerian court ordered Shell to hand over land around its giant Bonny oil terminal to the local population, the multinational said Wednesday. "The ruling was given some months ago but we have appealed," Shell's spokesman in Nigeria, Precious Okolobo, told AFP.  He did not say whether oil lifting and export activities at the terminal, considered to be the largest in Africa, would be affected by the ruling. Markets were meanwhile awaiting the latest weekly snapshot of US energy inventories due Thursday for a lead on the state of demand for oil in the world's biggest consumer of crude. The Department of Energy's latest data on inventories has been delayed a day owing to a public holiday in the United States on Monday. Oil traders were also looking ahead to an extraordinary meeting of OPEC on November 18 as member countries fret over falling prices, with some calling for cuts in output as a result.