delivery means that investors hold multiple orders for exchange or delivery by member companies, and the delivery price is calculated according to the full price, and it needs to be ensured that there is enough money in the application account), and then according to the physical process of extracting crude oil.
delivery date: refers to the date when both parties agree to exchange payment, and there is no delivery date in the spot for the time being.
it is mainly used for futures trading (the position with the longest futures time), which refers to the mandatory delivery date of goods.