Oil prices edged higher in Asia today as dealers await the release of a US stockpiles report for clues about demand in the world's top crude consumer, while upbeat Chinese manufacturing data lent support. 

US benchmark West Texas Intermediate for August delivery rose 10 cents to $105.44 while Brent crude gained nine cents to $112.38. 

With few leads in Asian trading, focus is on the US Energy Information Administration's weekly stockpiles report to be released later today, analysts said. 

Reserves are expected to have fallen 1.7 million barrels in the week ended June 27, according to analysts. 

Petrol stockpiles likely rose by 200,000 barrels, and stocks of distillates, which include heating oil and diesel, are expected to have climbed by 800,000 barrels. 

Analysts said oil prices retained support "on upbeat manufacturing data in China".

Chinese manufacturing activity expanded at its fastest pace this year in June, an official survey showed, in a sign that Beijing's attempts to tackle slowing growth in the world's number two economy and top energy consumer are gaining traction. 

They also said concerns are easing over a possible supply disruption in major crude producer Iraq.

Islamist militants have overrun swathes of territory in Iraq in a lightning offensive since June 9, but have so far yet to directly threaten the key oil-producing region in the country's south.