US oil price turns negative for first time in history
Xinhua
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File photo taken on March 12, 2019 shows an operating oil pump in Luling of Texas, the United States. (Photos: Xinhua)
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A trader shoots the closing numbers on screens by cellphone at the New York Stock Exchange (NYSE) in New York, the United States, March 9, 2020.
![](https://cdnpdcontent.aikan.pdnews.cn/20200421/fbf3634eec32481ab4ec41f3181c237a.jpg)
File photo taken on March 12, 2019 shows operating oil pumps in Luling of Texas, the United States.