Stockpiles at the biggest U.S. crude depot are quickly approaching critically low levels. The last time that happened, crude cost more than $100 a barrel. The storage tanks in Cushing, Oklahoma, require a minimum level of oil to maintain normal operations, which traders generally believe is around 20 million barrels. Unusually for this time of year, stockpiles declined more than 4 million barrels over the past two weeks to 31 million and are expected to keep dropping rapidly due to the world’s insatiable demand for U.S. light sweet crude. It’s a stunning reversal from last year when the pandemic prompted a glut of oil so big that traders resorted to storing it in tankers at sea. The drawdown, driven by a rapid demand recovery, has been exacerbated by an energy crisis that has sent European and Asian buyers on the […]