For short term CRUDE might retrace fibonacci 38.2%(from 4 dec post OPEC meeting) approx $37.5 above that crude inventories upcoming have to show some signs.
IMO 2016 non opec countries will find hard to operate at $ 30 oil. so supply from them will come down for sure but OPEC will produce at its max and by jan Iran will start producing more crude so things don't look good for crude medium and year to come. $20 is possible