Shanghai International Energy Exchange data showed crude futures' main contract for October 2026 delivery closed at 637.80 yuan/barrel on Sep 1, up 19.50 yuan, or 3.15%. Total turnover across all contracts reached 164,758 lots, with open interest falling 1,704 lots to 82,601 lots. The main contract saw turnover of 129,290 lots, with open interest down 2,698 lots to 40,001 lots.