Oil prices slightly up

NUR-SULTAN. KAZINFORM - The crude oil prices advanced during Friday's trading sessions on the exchanges of London and New York, Kazinform correspondent reports.
On London-based ICE Futures, the price of Brent crude oil to be delivered in September was up $0.31 at $63.39 a barrel.
The value of a WTI crude futures contract for September delivery on the New York Mercantile Exchange (NYMEX) rose by $0.18 to $56.2 a barrel.