Oil prices dipped on Tuesday as traders awaited an inventory report from the US Energy Information Administration (EIA) and began looking toward declining demand at the end of the summer driving season in early September.
Brent crude traded at $66.12 a barrel after it lost 51 cents or 0.77 per cent and the US West Texas Intermediate (WTI) crude finished at $63.17 per barrel after it weakened by 79 cents or 1.24 per cent.