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Oil barrels. - File Photo.
LONDON: Brent crude oil extended gains to rise over $1 on Tuesday, on worries about supply, even as euro zone worries sent other demand sensitive assets like equities lower.
By 0834 GMT, Brent was $1.06 higher at $104.70. Traders cited worries about sanctions-hit Iran struggling to maintain its production and the risk of supply being disrupted from Central Asian oil producer Kazakhstan, as pushing prices higher.
