BP is a British integrated oil and gas major with operations spanning exploration and production, refining, and fuel retailing through its network of gas stations. Like other oil majors, its refining and marketing operations give it some cushion against swings in crude prices, since lower oil prices can mean cheaper feedstock for refineries even as they hurt the upstream production business. BP has shifted its stated strategy back toward oil and gas production in recent years after an earlier push to grow renewable energy investments more aggressively than some of its peers. The company has also had to manage the long financial tail of the 2010 Deepwater Horizon oil spill, one of the largest environmental disasters in the industry's history, which shaped its risk management and safety practices for years afterward.