France, March 12 -- Images from Bahrain showed thick smoke rising after a strike on fuel tanks in Muharraq, with residents told to stay inside and close their windows.

Drones caused damage again at Kuwait's international airport, explosions were heard in downtown Dubai, and Saudi Arabia said it had intercepted drones headed towards its Shaybah oil field and its embassy district.

The Paris-based IEA, a world authority on energy markets, said the 13-day conflict "is creating the largest supply disruption in the history of the global oil market", which would surpass those of the 1970s.

The Gulf states' total oil output is down by at least 10 million barrels per day and there were "no signs of a de-escalation in hostilities," it added.

Wi...