BP's containment chamber fails, prolonging the Gulf of Mexico oil spill.
It is revealed that BP chief executive Tony Hayward is negotiating his terms of exit after being negatively criticised by politicians in the United States over his handling of the Deepwater Horizon oil spill in the Gulf of Mexico.
Energy company BP announces it is to sell billions worth of assets in Canada, Egypt, Pakistan, United States and Vietnam to part-fund the clean-up cost of the Deepwater Horizon oil spill in the Gulf of Mexico.
United States Coast Guard Admiral Thad Allen, the US government's response manager to the Gulf of Mexico oil disaster says that BP is making progress stopping the oil flow, but that it is too early to call the effort a success and the spill may continue for several months.
BP sprays more chemicals into the main massive undersea oil leak in the Gulf of Mexico using a deep-sea robot in an attempt to thin the oil which is rushing up from the seabed at the rate of about 210,000 gallons (795,000 liters) per day.