Group 1 - The main contract for crude oil futures at the Shanghai International Energy Exchange experienced a slight decline, closing at 436.5 yuan, down 0.09% or 0.4 yuan [1] - Trading volume decreased to 55,889 lots, while open interest fell by 2,845 lots to 23,684 lots [1] - On December 13, Brent crude oil futures for February also saw a decline, dropping by $0.16 or 0.26%, closing at $61.12 per barrel [1]

Group 1 - The main contract for crude oil futures at the Shanghai International Energy Exchange experienced fluctuations and closed lower, with a decrease of 1.04% or 4.6 yuan, settling at 439.7 yuan [1] - The trading volume for the main contract was 66,170 lots, while the open interest decreased by 950 lots to 28,139 lots [1] - In contrast, WTI crude oil futures rose by 0.36%, closing at $58.46 per barrel [1]

Core Insights - The Shanghai International Energy Exchange saw a decline in the main crude oil futures contract, with the primary contract closing at 447.9 yuan, down 1.13% or 5.1 yuan [1] - The trading volume decreased to 108,095 lots, and open interest fell by 395 lots to 41,574 lots [1] - On November 22, WTI January crude oil futures also experienced a drop, closing down by $0.94 or 1.59% at $58.06 per barrel [1] Summary by Category - **Market Performance** - The main crude oil futures contract on the Shanghai International Energy Exchange closed at 447.9 yuan, reflecting a decrease of 1.13% [1] - WTI January crude oil futures fell to $58.06 per barrel, down 1.59% [1] - **Trading Activity** - The trading volume for the main contract was recorded at 108,095 lots [1] - Open interest decreased to 41,574 lots, with a reduction of 395 lots [1]

Group 1 - The main crude oil futures contract in Shanghai experienced a slight increase, closing at 459.2 yuan, up 0.07% or 0.3 yuan, with a trading volume of 60,902 contracts and an increase in open interest by 3,676 contracts [1] - WTI crude oil futures for December rose by $1.40, representing a 2.39% increase, closing at $60.09 per barrel on November 15 [1]