Oil rose above $72 on Thursday, taking back some of the previous day's 1.8 percent loss after a surprising build in U.S. gasoline stocks, Reuters reported. The possibility of United Nations sanctions against Iran, the world's fourth biggest oil exporter, would keep the price within sight of U.S. oil's $78.40 all-time-high, analysts said. Traders kept a watchful eye on gathering storms in the Caribbean and Atlantic. Last year's hurricane season temporarily shut a quarter of U.S. oil production. U.S. crude settled 60 cents higher at $72.30 a barrel, after falling $1.34 on Wednesday. London Brent crude rose 66 cents at $72.68 a barrel. "The market is stuck between gasoline, which is a weight, and developing tropical storms. Then there is the steady flow of sound bytes on Iran," said Olivier Jakob, an analyst at Swiss-based Petromatrix. Forecasters at the U.S. National Hurricane Center said the latest Caribbean weather disturbance was pelting the Windward Islands with gusty rains and could become Tropical Storm Ernesto. U.S. data on Wednesday showed a surprising 400,000 barrel build in gasoline stocks in the world's top consumer. NYMEX gasoline futures dropped sharply after the report and rose only slightly on Thursday. BNP Paribas noted gasoline stocks typically fall substantially at this time of year, adding: "The summer is over for the gasoline bulls." The downside was limited by worries over Iran. The United States said on Wednesday that Tehran's response to incentives to stop enriching uranium fell short of the conditions set by the U.N. Security Council. German Chancellor Angela Merkel said Iran's reply was not satisfactory. The Security Council has demanded Iran halt its nuclear work by a deadline of Aug. 31 or it could face sanctions. Traders fear oil supplies could be disrupted. Oil markets paid little heed to news late on Wednesday that BP had cut another 90,000 barrels per day of oil output at its Prudhoe Bay field in Alaska because of a technical fault. But BP's shares fell. BP has had to shut half of the Prudhoe Bay field, the biggest in the United States, because of pipeline corrosion. "The bad news from BP is coming in small increments," said Jakob. "Yesterday we learned there was a leak in the U.S. Gulf." U.S. crude remains nearly 18 percent up this year. "It's fascinating how the market has managed to remain so high given the fundamentals," said John Waterlow, an oil analyst at Wood MacKenzie. "There's plenty of supply."
