Investing.com - Oil prices fluctuated on Wednesday as Canadian oil sands production was expected to gradually ramp up following closures due to wildfires and as record crude inventories put pressure on markets.
Brent oil futures were trading at $45.87 per barrel at 1053 GMT, up 35 cents from their last settlement.
U.S. crude futures were down 3 cents at $44.63 a barrel.
Industry group American Petroleum Institute said Tuesday that U.S. crude inventories rose by 3.45 million barrels to a 543.1 million barrels last week.
A similar report by U.S. Department of Energy later Wednesday was expected to show stockpiles at new record highs.