The plunge in the price of oil over recent months has defied all but the most pessimistic analysts.
At the moment, there are no shortage of forecasts to pick from as to how low it may eventually go. Goldman Sachs thinks Brent crude will fall to $42 in April-June; Morgan Stanley predicts a worst-case scenario of $43 per barrel in 2015 and even the once near-impossible scenario of $20 per barrel oil is now attracting attention from traders.
The one thing that most agree on, however, is that this will be a crucial few weeks for black gold.
Here, we take a look at some of the difficulties in calling just how far oil prices will fall.