BP one year on: How events unfolded

2010 20 April - Explosion on the Deepwater Horizon oil rig in the Gulf of Mexico killed 11 people and injured 17. 26 May - Over 130 lawsuits relating to the spill had been filed against one or more of BP, Transocean, Cameron International Corporation, and Halliburton Energy Services. The group said 23,000 individual claims had already been filed. 9 June - BP's stock hit its lowest level since August 1996, falling 52% in 50 days on the New York Stock Exchange, from $60.57 on 20 April to $29.20. 16 June - After meeting President Obama, BP executives agreed to create a $20bn spill r...