Media type: Electronic Journal Title: Proved reserves of crude oil and natural gas in the United States, year-end Other titles: Abweichender Titel auf der Website: U.S. crude oil and natural gas proved reserves, year-end Corporation: USA, Energy Information Administration Published: Washington, DC: U.S. Department of Energy, January 2021- Publication information: 2019- Language: English Keywords: Erdölvorkommen ; Erdgasvorkommen ; USA ; Amtsdruckschrift ; Statistik ; Graue Literatur ; Zeitschrift Origination: Footnote: Access State: Open Access