From the IEA last night:
The main message of this Report is that in 1H19 oil supply has exceeded demand by 0.9 mb/d. Our latest data show a global surplus in 2Q19 of 0.5 mb/d versus previous expectations of a 0.5 mb/d deficit. This surplus adds to the huge stock builds seen in the second half of 2018 when oil production surged just as demand growth started to falter. Clearly, market tightness is not an issue for the time being and any re-balancing seems to have moved further into the future.
In the meantime, the widely-anticipated decision by OPEC+ ministers to extend their output agreement to March 2020 provides guidance but it does not change the fundamental outlook of an oversupplied market. On our balances, assuming constant OPEC output at the current level of around 30 mb/d, by the end of 1Q20 stocks could increase by a net 136 mb. The call on OPEC crude in early 2020 could fall to only 28 mb/d.