New York-based Hess Corporation, previously known as Amerada Hess Corporation, is a global exploration and production company that develops, produces, purchases, transports and sells crude oil and natural gas. The companys E&P activities are concentrated in the Bakken shale play and offshore Gulf of Mexico, Southeast Asia and Guyana. As of year-end 2020, Hess proved reserves tally stood at 1.170 billion oil-equivalent barrels.