A pumpjack brings oil to the surface in the Monterey Shale, California

A pumpjack brings oil to the surface in the Monterey Shale, California

A pumpjack brings oil to the surface in the Monterey Shale, California, U.S. April 29, 2013. Photo: Reuters, Lucy Nicholson

March 14, 2017 10:51 PM (UTC+8)