Crude-oil futures fell Friday, reducing their sixth weekly gains on lingering demand concerns and on worries that crude's recent rally may have become excessive. A stronger dollar also weighed on prices. Crude for May delivery was last down $1.27, or 2.4%, at $53.07 a barrel in early North American electronic trading. The contract had rallied 17% in the past two weeks. Despite Friday's loss, crude is set to end the week up about 2%.

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