BP is a British oil major that has undergone significant changes in its business strategy, recently focusing on doubling down on renewable energy opportunities. Despite challenges, including a notable drop in stock performance, BP has occasionally surpassed Shell in size. The company continues to adapt and evolve within the energy sector.

“The Deepwater Horizon oil spill was the biggest event in BP's history. It cost BP more than $60 billion, which it's still paying out.”