US oil producers cut back on price hedges this year in a bet that energy markets would rally again, a move that has left them suddenly vulnerable after turmoil in the banking sector knocked down the price of crude.
美国石油生产商今年削减了价格对冲，押注能源市场将再次反弹。在银行业动荡压低原油价格后，此举令它们突然变得脆弱。
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