1 In the case of no obvious change in demand, the obvious decrease in supply will definitely lead to an increase in prices (many oil fields were out of production when the war broke out. )

The first situation is well known to everyone, so many people take the opportunity to hoard oil and make waves. This will lead to further price increases.

Iraq's invasion of Kuwait made many oil fields in Kuwait unable to produce oil, which led to a decrease in supply and a natural increase in prices. So many people began to spread rumors that Saddam wanted to monopolize the oil trade in the Gulf region and hoard oil at the same time, causing the illusion that the oil supply was greatly reduced, and then invested a lot of money in the oil futures market and made a big profit. In this way, oil prices will naturally rise at a rocket-like speed.