* U.S. crude stockpiles rise 1.7 million barrels
* Stocks at 16-year high
* Gasoline inventories rise, distillates fall sharply
(Updates prices, adds comment, recasts throughout)
By Chris Baldwin
LONDON, April 8 (Reuters) - Oil swung to above $51 a barrel on Wednesday after data from the U.S. Department of Energy showed fewer crude imports and more refinery efficiency in the past week.
The Energy Information Agency (EIA) said inventories of crude rose 1.7 million barrels to 361.1 million barrels in the week ended April 3. Analysts had forecast a build of 1.9 million barrels.[
]U.S. light crude for May delivery <CLc1> rose $1.34 cents a barrel to $50.59 by 1524 GMT. Crude for June delivery <CLc2> was higher at $53.10, up from its Tuesday close at $51.91. The May contract expires on April 21.
London Brent crude <LCOc1> rose $1.45 to $52.67. Brent for June delivery, which becomes the front month on April 15, rose $1.24 to $53.64.
Analysts said the EIA data served as an antidote to Tuesday's American Petroleum Institute data for U.S. crude oil stocks, which were seen as bearish and pushed the crude markets down almost $2 in early trade.
"It was unlikely that EIA's numbers were going to contribute much more 'bearishness'," said Jay Levine, a broker at Enerjay LLC in Maine.
The EIA said weekly gasoline stocks in the United States rose 600,000 barrels, compared with an expected rise of 1 million barrels.
"There is no way that this report could come out and not be considered bullish," said Simon Wardell, an oil analyst at Global Insight in London.
"There may be some indication the market is tightening a bit, but we're starting from such a high position already that another 1.7 million barrels on the pile isn't going to make such a big difference," Wardell said.
A Reuters poll forecast an average build of 1.9 million barrels for crude stocks, already at their highest since July 1993.
CORPORATE LOSSES
European equities rose in Wednesday afternoon trade, gathering strength from U.S. stocks as banks advanced after recent losses.
The dollar and yen rose against the euro on concerns that U.S. expected corporate earnings showing losses could dampen risk appetite, boosting safe-haven flows into the two currencies. [
]Demand for crude oil remains weak in the face of a global economic downturn, and while price volatility on non-fundamental data is a normal expectation, analysts said there was little in the way of economic data pointing to prices going much higher.
"I would say it is still the financial market factors driving this market up. Equities, forex," Wardell of Global Insight said.
"Until there is a clear sign that demand is returning, I don't see us getting much above this $50 range." (Editing by Sue Thomas)