Generally speaking, the price trend of crude oil is opposite to that of the US dollar index and the same as that of precious metals such as gold and silver. Of course, this is only a general situation and can only be used as a reference, not as a basis for making orders.

When crude oil stocks increase, it shows that there is an oversupply of crude oil in the market, oil prices fall, the dollar rises, and gold and silver fall.

When crude oil stocks decrease, it shows that the market demand for crude oil is strong, oil prices rise, the dollar falls, and gold and silver rise.

This is an American indicator. The increase or decrease of inventory will affect the price of crude oil, and then the Canadian dollar, because Canada's crude oil exports account for a large proportion of the economy, and the impact is greater than the weekly change of crude oil inventory in api gravity.