Oil prices edge down from 2015-highs, but set for weekly gains

By Jacob Gronholt-Pedersen SINGAPORE (Reuters) - Oil prices on Friday edged down from 2015-highs reached in the previous session, but prices remained on track for weekly gains after renewed air strikes in Yemen stoked concerns on the security of Middle East oil shipments. Crude prices on both sides of the Atlantic have surged almost $10 a barrel this month amid rising tension in the Middle East, while slowing U.S. production growth and signs of stronger global demand have also provided support.