1, the relationship between supply and demand (don't explain too much),
2. Macroeconomics (policies and regulations, inflation, currency exchange rate: mainly USD, interest rate, etc. )
3. International political factors (regional turmoil and disputes, wars)
4. Linkage of related markets (gold, foreign exchange (mainly USD), stocks)
5. Speculation and international hot money,
6. Psychological factors (traders' confidence in the market).
The demand is great, and the transaction volume is also great. There are many industries related to crude oil, which are very mature trading varieties and become the representatives of bulk commodities. Other spot tin, bananas, nickel and other transactions or deliveries are small, so it has the greatest impact on the whole market. Just like the position of gold in precious metals.