In 20-18, America produced more barrels of crude oil a day than either Saudia Arabia or Russia. It’s the first time that’s happened since the end of the Cold War. This made it a particularly good time to be the Houston-based company, Occidental-Petroleum. The oil and gas giant’s revenue jumped by 43 percent last year, landing it at number one hundred sixty seven on the Fortune 500. But not so long ago, the industry was struggling.