(Reuters) - NuStar Energy shut a diesel pipeline north of Aberdeen, South Dakota after a spill on Tuesday and the ongoing clean-up could take up to 10 days, news website ksfy.com reported on Wednesday. The report quoted a NuStar spokesman saying the company's conservative original estimate on the spill was a maximum of 500 barrels, of which 350 barrels had been picked up. The affected area of the spill is less than a half an acre and the company was trying to clean the ditch to put a new piece of pipe back in, the report added. ...

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