IEA Outlook for 2019 "On the basis of solid oil demand growth, modest declines in OPEC production due to Iran and Venezuela, and rising US output, the market could show a modest surplus in 1Q19, before flipping into deficit in 2Q19 by about 0.5 mb/d. This does not take into account Saudi Arabia's announced plans to reduce its exports further in April" (source: IEA Oil Market Report March 15).
This adds to the bullish picture for oil. Factors that could rain on this sunny outlook: no trade deal with China, US shale production increases, a demand forecast that falls short due to slowing global growth.
Oil prices are notoriously hard to predict but, given the solid demand growth this year, the discipline of OPEC+ and shrinking supply from Iran and Venezuela, WTI looks set to stay in its current range of $50-$60 as a base case. A rise above $60 will probably be seen the Spring but I doubt whether oil stocks will be "party on". They need to see higher oil prices over a long time in order to believe that good times have returned.