Oil supplies 'face more pressure'
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World demand for oil will rise more than expected while supplies will remain tight up to 2012, experts say.
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The spike in oil prices in recent months is stoking heated arguments between market players, who blame each other for the lack of production capacities that has been exposed by strong global demand.
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The world's top economic leaders  Friday asked oil producers to pump more crude and demanded  better market data to determine why oil costs have roared to  levels that imperil the best growth prospects in 30 years.
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World oil inventories are continuing to  rise but stronger-than-expected demand growth means the  stockbuild will be smaller than previously thought, the OPEC  oil cartel said on Friday.
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Oil prices have pushed above $49 a barrel, approaching record levels as worries about the stability of supplies from Iraq, Nigeria and Russia compound concerns over low fuel stocks ahead of winter.
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Oil prices leaped more than a dollar on  Friday on renewed concern over tight supplies of distillate  fuels in Europe and the United States ahead of the northern  hemisphere winter.
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Oil prices continue falling on comments from Opec that suggest increasing supply is a possibility.
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Larger supplies, more energy alternatives, and a slowing economy could be factors.
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Supply doesn't come close to meeting demand in North America, tensions high.
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US Energy Secretary Samuel W. Bodman ahead of an OPEC meeting next month urged oil-producing states on Monday to pump more crude to ease pressure on prices.
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Oil prices rose $2 on Friday on renewed  concern over tight supplies of distillate fuels in all main  consuming centers ahead of the northern hemisphere winter.
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Business & money: Opec under pressure to increase production after warning that prices could peak by end of year.
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Oil prices pushed above $49 a barrel  on Monday, approaching record levels as worries about the  stability of supplies from Iraq, Nigeria and Russia compounded  concerns over low fuel stocks ahead of winter.
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Increased demand in India and China is affecting oil prices, but &quot;non-fundamental&quot; factors make it hard to forecast which side of the $45 per barrel mark they will head, OPECâs President said on Tuesday.
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Business & money: Nigerian strike and Iran worries add to pressure as cost of crude oil rises to its highest level this year.
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OPEC oil producers on Thursday weighed up  whether heavy recent price falls were severe enough to warrant  cutting back excess supply at Friday's ministerial meeting.
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The world economy will face higher prices than in the past decade as more oil comes from &quot;politically unstable&quot; countries, such as Saudi Arabia and Russia, and production costs rise, the International Energy Agency warned on Tuesday.