Oil Heads For Sixth Weekly Gain Amid Supply Concerns
By Yuka Obayashi TOKYO (Reuters) -Oil prices rose on Friday, set for their sixth weekly gain, amid concerns of tight supplies as major producers continue their policy of limited output increases amid rising fuel demand. Brent crude futures climbed 45 cents, or 0.5%, to $89.79 a barrel at 0429 GMT, after falling 62 cents during…