The world should get used to oil prices between $50 and $60 a barrel as falling costs in America’s shale fields counteract OPEC’s renewed commitment to supply management.

The surplus in global oil markets will last for longer than previously thought, persisting into late 2017 as demand growth slumps and supply proves resilient, the International Energy Agency reported.

Oil trimmed its biggest weekly decline in three months as investors weighed the largest drop in U.S. output since 2013 and a jump in payrolls against a smaller-than-expected stockpile decline.

Oil advanced from the highest close in more than 10 months before U.S. government data forecast to show crude stockpiles dropped for a third week, trimming a glut.

Oil traded near a four-month high in London, swinging between gains and losses as Iraq said it raised output to a record in March while U.S. production fell.

Oil prices may have passed their lowest point as shrinking supplies outside OPEC and disruptions inside the group erode the global surplus, the International Energy Agency said.

The global oil glut will persist into 2017, limiting any chance of a price rebound in the short term as the surplus takes even longer to clear than previously estimated, according to the International Energy Agency.

The global oil surplus will be bigger than previously estimated in the first half, increasing the risk of further price losses, as OPEC members Iran and Iraq bolster production while demand growth slows, according to the International Energy Agency.

Global oil markets could “drown in oversupply,” sending prices even lower as demand growth slows and Iran revives exports with the end of sanctions, according to the International Energy Agency.

Oil rose from the lowest close in more than 12 years in New York as volatility climbed amid speculation that prices have fallen too fast.