9/14/2010

Investigators are examining California gas-pipeline operator PG&E's safety and maintenance record after a huge gas explosion ripped through a San Francisco suburb. Last week's blaze, which killed several people and caused PG&E's shares to shed $1.18 billion in value, prompted fresh concern from federal regulators, who say utility companies are failing to invest enough in maintenance to offset the natural deterioration of America's gas lines.

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