Analysts expect the data to be released tomorrow by the US Energy Department to show that commercial crude stockpiles rose in the week to October 30 which typically means weaker demand in the world's top oil consuming nation.
Despite occasional rallies, oil remains generally bogged down by a global crude supply glut that has outpaced demand and depressed prices for more than a year.
"Expectations of more US stockpiles restrained oil bulls," said Bernard Aw, market strategist at IG Markets in Singapore.
China's official purchasing managers index for the manufacturing sector showed activity shrank in October for the third straight month.
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Russian oil production broke a post-Soviet record in October, climbing to 10.78 million barrels per day, according to Bloomberg News.
At around 0310 GMT today, US benchmark West Texas Intermediate for delivery in December was up 16 cents at USD 46.30 and Brent crude for December was trading 11 cents higher at USD 48.90 a barrel.
Current price levels are more than 50 per cent lower from their peaks in June 2014 when a barrel of oil was selling at over USD 100.