Keathley Canyon is an undersea canyon in the United States Exclusive Economic Zone in the Gulf of Mexico. The canyon is named for the hydrographic survey ship USNS Sergeant George D. Keathley (T-AGS-35). The Canyon is rich in oil fields. The major oilfields at the Keathley Canyon are Tiber, Kaskida, Lucius, and Buckskin. Many oil companies, including Chevron Corporation, BP, Anadarko Petroleum, ExxonMobil, Repsol, Shell, Devon Energy, BHP Billiton, Eni, Navitas Petroleum and Total S.A. have leased the rights to drill for oil in this area.