In the latest monthly oil reports the demand growth forecasts didn't change and slowing production growth in H1 2019 due to production cuts could bring some stability around the 50% fibonacci level and could also give some short term support for bulls.
This could lead to retesting the broken trendline while the first resiStance at around 60-61 which could a tough hurdle to the bulls given the stockpiles built up in 2018, following this a further drop probably in mid January/February will follow with new lows below 50 dollars to form the "c" wave. Given the stregth of lvl 50 the move below could be either just a spike or a bigger move well into the 40 dollar area.
However if the 60-61 zone will not hold, the next supply zones could be at 64-65 (double top neckline) and the strongest supply zone could that has to be broken by the bulls is 72-76. However this scenario is unlikely unless some extreme situations will occur.