OIL prices were set to post a second straight weekly gain on Friday, spurred largely by brightening economic prospects for China which should boost fuel demand in the world's second-biggest economy.
Brent futures for March delivery gained 26 cents, or 0.3%, to $86.42 a barrel by 0655 GMT, while U.S. crude advanced 43 cents to $80.76 per barrel, a 0.5% gain.
