Schlumberger's Revenue Jumps

October 21, 2011

HOUSTON—Schlumberger Ltd. reported a 25% drop in third-quarter profit, but its revenue increased by nearly half as oil-field activity across the globe ramped up despite economic fears.

The oil-field-services company's earnings fell to $1.3 billion, or 96 cents a share, from $1.73 billion, or $1.34 a share, a year earlier, when Schlumberger...

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