Oil worker in the Nihran Bin Omar field north of Basra, Iraq. (Photo: Nabil al-Jurani)Copyright 2017 The Associated Press. All rights reserved.Oil futures posted their steepest weekly decline in prices for over three and a half months, as oversupply concerns dominated trading sentiment for much of the week. At the close of trading in London on Friday, the Brent front-month futures contract was trading at $64.79 per barrel, up a 1.05% or 67 cents, but still down nearly 6% from last Friday’s brief uptick abov ...