American crude oil refers to crude oil futures listed and traded in the New York Mercantile Exchange, USA. "American crude oil" is a contract name in the American crude oil futures series, a light crude oil futures contract of the New York Mercantile Exchange, a futures contract marked with WTI, and one of the largest crude oil futures contracts in the world. As a big consumer of crude oil and the global influence of the New York Futures Exchange, crude oil futures trading based on WTI in the United States has become the leader of global commodity futures. The international oil price basically refers to the US crude oil futures.