Hess is an American oil and gas company that is part of the Fortune 500. It was founded in 1933 and is headquartered in New York City. The company operates in two segments: Exploration and Production, and Marketing and Refining. Hess is involved in exploration and production activities in the United States, Denmark, Equatorial Guinea, Malaysia, Norway, and Thailand. It also produces and markets petroleum products, including gasoline, diesel fuel, jet fuel, and asphalt.