Anadarko Shares Fall After Colorado Blast Prompts Well Closings

  • Explorer shuts 3,000 vertical wells across state’s northeast
  • April 17 blast killed at least two people; cause not known

A Frederick-Firestone firefighter rolls up a hose in front of a burned out home April 18, 2017 in Firestone, Colo.

Photographer: Andy Cross/Denver Post via Getty Images
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Anadarko Petroleum Corp. dropped the most since August after the oil and natural gas explorer said it will shut more than 3,000 Colorado wells as part of an investigation into a deadly house explosion.

Shares slipped as much as 5.6 percent to $56.59 in New York trading, their biggest intraday slide since Aug. 1, and were down 4.8 percent to $57.07 as of 10:15 a.m. in New York. Anadarko will close and inspect the wells as a precaution after the April 17 blast, The Woodlands, Texas-based driller saidBloomberg Terminal in a statement Wednesday. Colorado authorities said they have yet to determine a cause for the tragedy.