Chinanews client April 21 (Zhang Xu) April 21 (Monday), the financial market has set a new record, witnessing history! The U.S. light crude oil futures WTI price plunged to a record low in May, and fell more than 300% at the end of the close, closing at -37.63 US dollars per barrel. This is the first time oil futures have fallen since trading began on the New York Mercantile Exchange in 1983 Negative transactions.