Global oil index retreats from six-month high Oil prices retreated from near six-month highs following a sharp rise fueled by the latest attacks on Saudi Arabia's energy infrastructure, which pushed weekly gains by six percent for Brent crude and over two percent for West Texas Intermediate. Energy traders turned to profit-taking during early GMT sessions as diplomatic maneuvers offered temporary relief to tight international supply expectations. The change meant U.S. West Texas Intermediate futures fell $1.76 to $101.51 a barrel, while Brent crude fell $1.49 to $115.23.