October WTI crude futures fell 1.32% to $ 62.07 a barrel.
Futures for Brent crude for November delivery fell 1.01% to $ 68.32 a barrel.
On the eve of oil prices rose significantly amid attacks on oil facilities in Saudi Arabia.
On the night of September 14, Saudi Aramco enterprises in eastern Saudi Arabia were attacked by drones. The country has reduced oil production by more than half.