What a difference a year makes. In the oil markets, it has produced a $10 a barrel rise in benchmark Brent crude, a well-engineered cutback of more than 1 million barrels a day in global oil supply and an estimated decline of 83 million barrels in OECD oil inventories in the first three quarters of 2017. Oil stocks had increased by 38 million barrels in the same period of 2016, adding to the world's glut for the third year in a row and pressuring prices down.

Looking ahead 2018
OPEC, against the odds, reboots global oil markets for 2018
'Exit strategy' from output cuts will bring a new challenge in the new year