This Is Why the May Oil Contract Price Went Negative on Monday
Futures oil contract trading is generally done by two different groups, speculators and commercial hedgers.
Speculators are essentially taking a position on where oil will be at a future time. If they think it will go higher, they will buy an oil contract to profit from what they expect, a higher price. If they believe that oil will be lower, they will sell (short) oil contracts to profit from the decline they expect.