Oil prices rise as investors weigh Middle East supply disruption concerns

Oil prices rose slightly on Friday as investors weighed concerns about Middle East supply disruptions against signs of weaker demand. Brent crude futures for October delivery, which expire today, rose 23 cents, or 0.3%, to $80.17 a barrel. The more widely traded November futures rose 20 cents, or 0.2%, to $79.02 a barrel. U.S. West Texas Intermediate (WTI) crude futures rose 18 cents, or 0.2%, to $76.09. Both contracts settled more than $1 higher on Tuesday, with Brent gaining 1.5% and U.S. crude up 1.7% for the week so far.