What major event occurred during Tony Hayward's time as CEO of BP?
Deepwater Horizon oil spill
Exxon Valdez oil spill
Gulf War
Piper Alpha disaster
Answer
The Deepwater Horizon oil spill occurred during Tony Hayward's tenure as CEO of BP. The disaster, which began on 20 April 2010, resulted in the largest marine oil spill in history and had severe environmental and economic consequences.
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