The price of a barrel of Brent Crude oil has fallen below $50 for the first time since 2009.
It's the latest landmark in weeks of falling oil prices which have led to volatility on global stock markets.
In the UK, and elsewhere, questions are now being asked of energy suppliers who aren't yet passing the price slump onto consumers.
Lawrence Slade from Energy UK which represents Britain's energy suppliers says it's not that simple.
IN: "Oil and….
OUT: ...consumers."
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