Because the barrel of crude oil trade is a unit of volume, which is about159L, and because the density of different crude oils is different, the converted weight is different, and most of the oil is about140kg.

PetroChina and PetroChina * *: crude oil 1 ton, gasoline 0.2 15 ton and diesel 0.394 ton. The refined oil rate is 63.7%.

International level: crude oil 1 ton, gasoline 0.29 tons and diesel 0.49 tons. The oil yield of the product is above 80%.