North Sea

Alok Sharma said the government should be expanding wind and solar power instead.
The chancellor has been warned that North Sea jobs will be lost if he brings in a one-off levy on oil companies' profits.
Lt Allen was "perfect" and "my best friend", his heartbroken wife Hannah Allen said in a Facebook post.
The F-15C Eagle, from the 48th Fighter Wing based at RAF Lakenheath, crashed near Middlesbrough.
Dozens of containers with items including flat-screen televisions have washed up on Dutch islands in the North Sea after a ship lost part of its cargo in heavy seas, bringing a windfall for local treasure hunters.