Oil tumbled again Monday -- down more than 5 percent since last Thursday and headed for its lowest settlement in weeks.
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Oil headed for lowest settlement in weeks
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Oil prices sink again on worries about demand
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Oil falls below $93 a barrel ...
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Crude oil prices fall Thursday
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Brent crude slipped below $112 a barrel on Monday as Europe stumbles
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Oil slips below $83
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Crude oil closes sharply lower, posting a new three week low
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Oil falls below $68
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Oil falls below US$53
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Crude oil prices slide
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Oil prices plunge
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Oil drops $6 to below $88
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Oil falls below $50 a barrel for first time in almost two years
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Oil prices fall below $42 a barrel
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Oil edges down after choppy trading
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Oil falls below $41 per barrel
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Oil falls below US$50