The oil closed on Monday, backed by increased tension in the strategic Strait of Ormuz, where Iran confiscated a British tanker.
In London, the barrel of Brent of the North Sea for delivery in September was discharged from 79 cents and closed to 63.26 dollars.
In the new York market, the WTI barrel for August increased 59 cents, to 56.22% dollars.
Last week, Brent and WTI accumulated falls of 6.4% and 7.6%, respectively.
But prices began to rise at the end of the sixth session when Iran announced that it had "confiscated" the British flag tanker Stena Impero in the Strait of Ormuz; Where almost 21% of the world consumption of petroleum products spend.
The Monday increase was "relatively discreet," said Carsten Fritsch, an analyst at Commerzbank.
"The moderate response of the market is undoubtedly linked to Iran, until then, have not done more than small provocations and have not given very large steps to really disturb the navigation of the strait" of Ormuz, added Matt Smith of ClipperData.
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