Oil slips as U.S. crude stock build stirs doubts on demand
Oil prices fell on Wednesday after industry data showed a surprise build in U.S. crude inventories against analysts' forecast of a decline, reinforcing fears about weakening demand even as supply tightens.
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### Instruction: Oil slips as U.S. crude stock build stirs doubts on demand

### Response: Oil prices fell on Wednesday after industry data showed a surprise build in U.S. crude inventories against analysts' forecast of a decline, reinforcing fears about weakening demand even as supply tightens.