Oil extends losses after Saudi Arabia to restore output by end-September

Brent crude oil futures fell 36 cents, or 0.6 per cent, to $64.19 a barrel, after tumbling 6.5 per cent the previous session.

Oil prices extended their losses from the previous session on Wednesday, after Saudi Arabia's energy minister said the Kingdom will restore lost oil production by the end of the month.

But investors remained cautious of potential tension in the Middle East after the United States said it believes the attacks that crippled Saudi Arabian oil facilities last weekend originated in southwestern Iran. Iran has denied involvement in the strikes.

Brent crude oil futures fell 36 cents, or 0.6 per cent, to $64.19 a barrel by 0005 GMT, after tumbling 6.5 per cent the previous session.

US West Texas Intermediate (WTI) crude futures fell