Pump jacks are seen in the Midway Sunset oilfield, California, in this April 29, 2013 file photo. REUTERS/Lucy Nicholson/Files
File photo of pump jacks are seen in the Midway Sunset oilfield
by Thaer Abbas | Dec 12, 2016 |
Pump jacks are seen in the Midway Sunset oilfield, California, in this April 29, 2013 file photo. REUTERS/Lucy Nicholson/Files