Oil prices are changing a little on Friday morning, ending the week with their biggest increase since mid-July amid renewed tensions in the Middle East.

Accordingly, Brent crude oil futures for November delivery were trading at $95.51 a barrel on the ICE Futures stock exchange in London, down 1 cent from the previous trading day's close. On Thursday, they had fallen $0.11 (0.12%) to $95.52 a barrel.

And WTI crude oil futures for October delivery were up $0.23 (0.25%) to $91.53 a barrel in online trading on the New York Mercantile Exchange (NYMEX). In the previous trading session, they had increased by $0.29 (0.32%) to $91.30 per barrel.