Brent gained around 14 per cent in September
Brent crude futures declined 0.07 per cent to $99.18 a barrel as of 0119 GMT, while West Texas Intermediate (WTI) futures fell 0.39 per cent to $90.17 per barrel
Crude prices have risen more than 50 per cent this year as the six-month conflict between the US and Iran has disrupted shipments of crude oil and refined petroleum products from the Middle East