* Weak dollar, equity gains help drive oil to $60 a barrel
* China exports slump in April but crude imports up
* U.S. crude stocks probably rose for 10th week-poll
(Updates prices)
By Jane Merriman
LONDON, May 12 (Reuters) - Oil prices hit $60 a barrel on Tuesday for the first time in six months, boosted partly by a weak dollar and gains on equity markets.
But prices retreated from their highs when U.S. equity markets turned negative <.N>
U.S. crude <CLc1> was up 53 cents at $59.03 a barrel by 1432 GMT. It earlier touched $60.08 a barrel, its highest since November last year. It has risen about 20 percent this month.
London Brent crude <LCOc1> was up 64 cents at $58.12 a barrel.
The U.S. dollar fell to a four-month low as optimism about the economic climate reduced its appeal as a safe haven [
]. Oil, which is priced in dollars, tends to rise when the dollar falls.Gains in equity markets have also driven oil higher, with oil and equities being closely correlated since equity markets bounced in April. [
]"Oil is riding the coat-tails of the equity market bounce for now, largely ignoring the build-up in oil inventories," said Harry Tchilinguirian, senior oil analyst at BNP Paribas.
"Weakness in oil fundamentals is reflected in elevated inventories, yet the market's price assessment appears to have brushed this aside."
The global economic downturn has hit demand for oil, which has created a massive supply overhang.
There is an estimated 100 million barrels of crude oil stored at sea on tankers. U.S. crude inventories are at their highest in 19 years. [
]The rally in global equity markets in anticipation that the economic climate might improve has boosted oil despite its bearish supply/demand picture.
The dollar has also played a part.
"The U.S. dollar is slightly weaker which could be spurring a bit of strength," said Tony Machacek at Bache Commodities Ltd.
The global downturn has pushed oil down from a record high above $147 a barrel hit last July to a low in December of $32.40.
Prices have rebounded this year.
U.S. crude is up more than 80 percent from a January low of $32.70 a barrel.
Crude oil demand in China, the world's second-largest energy user, provided support for prices with Chinese customs confirming on Tuesday that crude imports in April rose to reach the second-highest daily rate on record. [
]But the country's export data proved disappointing. [
]U.S. oil inventory data due on Wednesday is forecast to show a further rise in crude oil stocks.
U.S. crude stockpiles probably rose for the 10th straight time last week, up by 1.2 million barrels. Distillate stocks are likely to have risen by 1.1 million and gasoline stocks by 500,000 barrels, a preliminary Reuters poll showed. [
] (Additional reporting by Chua Baizhen; editing by Keiron Henderson)