REUTERS

Brent crude oil futures LCOc1 were trading at $46.39 per barrel at 0320 GMT, up 14 cents from their last close but still near the Friday's low of $45.90, and U.S. West Texas Intermediate (WTI) crude CLc1 was up 11 cents at $44.87 a barrel, according to Reuters.

Traders said the rise in prices was largely a result of a suspension of tanker loading of Basra Light crude at two export terminals in Iraq's south after a pipeline leak.

Although loadings reportedly resumed overnight, Iraq plans to cut crude oil exports from its southern ports to 2.79 million barrels per day (bpd) in August from 2.99 million bpd planned for July, a preliminary loading programme showed, according to the report.

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Oil price gains have, however, been limited with financial players betting on price falls, or shorting the crude market, moving away from long positions that benefit from price rises.

"Oil prices continued their period of weakness as investors remained concerned that increasing exploration activity in the U.S. would see U.S. production and inventories remain high," ANZ bank said on Tuesday.

"Signs of an end to several supply disruptions and a stronger U.S.-dollar also played their part in keeping sentiment bearish," it added.  

Physical markets were also weak, with Asian oil refiners processing less crude as they grapple with margins that plunged to five-year lows after the region was flooded with supply of refined products and as slowing economic growth hits demand for fuels, Reuters wrote.