The oil trading market is split up into two trading sessions: Brent crude oil and West Texas oil.
The trading hours for Brent crude oil are Monday - Friday 01:00 - 22:59 (New York time).
The trading hours for West Texas oil are Sunday - Friday 18:00 - 16:59 (New York time).
The trading hours for natural gas are Sunday to Friday, 17:00 - 15:59 (Сhicago time).