Oil prices fell slightly on Friday morning, after a considerable increase in previous trading day.

Accordingly, the October Brent crude oil futures at the London ICE Futures stock exchange are trading at $89.37 per barrel, down $0.33 (0.37%) from their previous close. On Thursday, they had risen $1.86 (2.1%) to $89.7 per barrel.

And in online trading at the New York Mercantile Exchange (NYMEX), the October WTI crude oil futures fell $0.25 (0.3%) to $83.28 per barrel. On the previous trading day, their price had increased by $1.3 (1.6%), reaching $83.53 per barrel.