Oil prices nudged higher on Wednesday as traders reacted to the latest US energy stockpiles data offering an insight into crude demand across the world's biggest economy.
US benchmark West Texas Intermediate (WTI) for delivery in November gained five cents to $45.28 a barrel, reversing small losses earlier in the day.
Brent North Sea crude for November delivery gained 16 cents to stand at $48.39 a barrel in late London deals and compared with Tuesday's close.
Both contracts closed higher on Tuesday after sinking on Monday as investors track data also out of top energy consumer China.
Markets on Wednesday reacted to official data showing that US commercial crude stockpiles rose by four million barrels last week -- lower than the forecasted 4.6 million barrels published a day earlier by the American Petroleum Institute.
Traders are meanwhile concerned about China's economic slowdown because of its impact on demand for raw materials, including oil.