General view of the Petrolchemie und Kraftstoffe (PCK) oil refinery in Schwedt/Oder
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Oil price at four-year low as Opec meets

The price of oil has fallen as Opec oil producers meet in Vienna to discuss production levels.

The oil cartel is split over how to react to the sharp slump in oil prices.

There is speculation that it could announce its first cut in oil production since 2009.

Mark Lobel reports.

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