US shale a recurring headache for OPEC: Rystad 

RYSTAD thinks the oil price will experience a short-lived rally through to the end of the first half of next year before tapering off. 

US shale a recurring headache for OPEC: Rystad  US shale a recurring headache for OPEC: Rystad  US shale a recurring headache for OPEC: Rystad  US shale a recurring headache for OPEC: Rystad  US shale a recurring headache for OPEC: Rystad 

US shale ramp up recurring issue for OPEC: Rystad