Oil prices rallied for their best week in at least five years on Friday, steadying above $US51 a barrel, following OPEC's decision to cut crude output to rein in a global glut that has weighed on prices for more than two years.
Oil prices rallied for their best week in at least five years on Friday, steadying above $US51 a barrel, following OPEC's decision to cut crude output to rein in a global glut that has weighed on prices for more than two years.