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U.S. regulator raises concerns about weights on energy pipelines

Reuters  |  CALGARY, Alberta/WASHINGTON 

By Nia Williams and Valerie VolcoviciCALGARY, Alberta/WASHINGTON (Reuters) - A U.S. regulator's preliminary investigation into the biggest oil pipeline spill this year has raised a red flag that could trigger an extensive and costly inspection of tens of thousands of miles of underground energy lines.The 5,000-barrel leak on TransCanada Corp's Keystone pipeline on Nov. 16 in South Dakota might have stemmed from damage caused by a weight put in place when it was built in 2008, the Pipeline and Hazardous Materials Safety Administration said in a report published on Tuesday.Weights are used to ...

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First Published: Mon, December 04 2017. 21:08 IST