BP to sue rig owner over gulf spill

BP is suing Transocean for at least $40bn (€27bn) in damages, accusing the rig owner of causing last year’s deadly blow-out in the Gulf of Mexico that led to the worst offshore oil spill in US history.

The oil giant also is suing the maker of the device that failed to stop the calamitous oil spill.

The developments came in separate court filings in federal court in New Orleans on the one-year anniversary of the disaster.

BP said every single safety system and device and well control procedure on the Deepwater Horizon rig failed.

It also says Cameron International provided a blow-out preventer with a faulty design.

Eleven people were killed when the rig exploded on April 20, 2010, leading to more than 200 million gallons of oil spewing from an undersea well.