Brent's five-day losing streak has pushed the 4-hour RSI into oversold territory. Thus a temporary loss of momentum is likely.
Given this, a corrective rally could be seen, especially if prices stage a rebound from $48.34 (50% of May 2015 high-Jan 2016 low). A rebound from the said fibo level could yield $49.34 (daily 5-MA).
On the other hand, day end closing below $48.34 could signal trend reversal.