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

By Jacob Gronholt-Pedersen SINGAPORE (Reuters) - Oil prices held steady on Friday near 2015-highs reached the session before, remaining 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. Brent crude fo