Oil Heads for Sixth Weekly Gain on Lingering Supply Concerns

Oil Heads for Sixth Weekly Gain on Lingering Supply Concerns
Towers and smokestacks are silhouetted at an oil refinery in Melbourne, on June 21, 2010. Mick Tsikas/Reuters
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London—Oil prices rose on Friday, heading towards a sixth consecutive weekly gain, as geopolitical tensions continue to raise supply concerns.

Brent crude futures were up 66 cents, or 0.7 percent, at $90 a barrel by 1225 GMT, having hit $91.04 on Thursday for their highest since October 2014.