The price of a barrel of American oil has plunged below $ 15. That is the lowest level in two decades, mainly because the demand for oil has plummeted due to the corona crisis and because of a price war between Saudi Arabia and Russia on the oil market. The price of a barrel of American oil in New York fell by almost 19 percent to $ 14.84. The price of a barrel of Brent oil fell less sharply. It fell by 1.5 percent to $ 27.64. The price of a barrel of American oil in New York fell by almost 19 percent to $ 14.84. The price of a barrel of Brent oil fell less sharply. It fell by 1.5 percent to $ 27.64.