Despite the day's advance, prices remained on course for a third consecutive weekly decline as gains in supply had dragged on prices during the week.
Brent crude was up 34 cents at $72.92 a barrel by 1723 GMT. Brent was on track to fall 3.2 percent in the week.
A weakening US dollar, following US President Donald Trump's criticism of the Federal Reserve's policy moves, has helped relieve some pressure on oil prices, said Phil Flynn, analyst at Price Futures Group in Chicago.
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