As oil roared to life Thursday, CNBC Pro searched for who could be the big winners and losers, if crude rebounds significantly.
Using Kensho, a hedge fund analytics tool, we looked at all the times when oil rebounded by 20 percent in 30 days. This kind of counter-trend rally would not be unusual: It happened twice in 2015.
Here are the biggest winners and losers among stocks in the S&P 500 during those 30-day periods of a crude rebound.