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Deepwater Horizon exploded in the Gulf of Mexico, killing 11 workers and causing an oil spill that soon became the worst environmental disaster in US history.
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BP reports progress with the "static kill" operation to plug the well with mud and seal with cement.
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BP announces the total cost of damage from the oil spill to be about $6.1bn.
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BP oil spill leaves undersea residue.
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BP blowout preventer failed and is removed spilling 206m gallons of oil into the gulf.
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BP well leak poses "no further risk" to environment.
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BP had many failures and is responsible in part for the disaster, but also blames other companies working on the well.
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BP pumped cement to seal damaged well.
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The ruptured well is finally sealed and is "effectively dead".
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BP has struggled to stem the leak and oil has washed ashore along the Gulf Coast.
