* Crude oil rise on supply worries, Mideast protests
* World stocks hold near 30-month highs
* Dollar climbs to 8-week high versus yen
By Wanfeng Zhou
NEW YORK, Feb 15 (Reuters) - Crude oil prices rose on Tuesday as protests in Middle East countries raised concerns about potential supply disruptions, while the U.S. dollar hit an eight-week high versus the yen as Treasury yields advanced.
World stocks were little changed, erasing early gains after a report showed U.S. retail sales rose less than expected in January. Wall Street stocks fell at the open.
U.S. crude for March delivery <CLH1> staged a rally as New York woke up, climbing as high as $85.97, rebounding from a 2-1/2-month low set in the previous session.
Last week's ousting of Egyptian President Hosni Mubarak and the toppling of his Tunisian counterpart Zine al-Abidine Ben Ali a month earlier have raised tensions among investors that spreading unrest could disrupt oil supplies.
"We are seeing contagion from Tunisia and Egypt to other countries that are more important for the oil markets," said Christophe Barret, oil analyst at Credit Agricole Corporate and Investment Bank.
World stocks as measured by MSCI <.MIWD00000PUS> were last little changed on the day, holding near last week's 30-month highs. Japan's Nikkei <
> logged a 10-month closing high and Europe's FTSEurofirst 300 < > was up 0.1 percent.Stocks worldwide earlier got a boost after Chinese inflation came in lower than expected at 4.9 percent in the year to January, easing investor concerns that the world's No 2 economy will have to tighten monetary policy more aggressively. [
]"The data probably slightly eased expectations of immediate tightening, although in the overall scheme of things, this doesn't change the fact that China is still in a tightening phase," said Etsuko Yamashita, chief economist at SMBC.
Inflation pressures, particularly in emerging markets, have been part of the motivation this year for investors to move into developed stock markets.
DOLLAR AND YIELDS
The dollar climbed as high as 83.93 on trading platform EBS, the highest level since mid-December, boosted by a rise in U.S. Treasury yields.
Two-year notes <US2YT=RR> were last down 1/32 in price with yields rising to 0.87 percent, up from 0.85 percent late Monday. The note yields earlier tested technical support levels with yields reaching 0.89 percent, their highest level since May of last year.
But the dollar fell versus the euro <EUR=>, which was boosted by demand from Middle East and Asian investors. Analysts cautioned that euro sentiment remained fragile given scepticism over whether euro zone leaders would come up with a quick and effective solution to tackle its debt crisis.
Peripheral euro zone yield spreads have been widening in the past week on uncertainty over a rescue package for the region, and there was some disappointment after a meeting of European finance ministers on Monday.
"Initial optimism at the beginning of the year over a comprehensive bailout package in the euro zone is now starting to fade away," said Lee Hardman, currency strategist at BTM UFJ.
Data showed that the euro zone economy ended last year with stable growth, but it failed to meet expectations for an acceleration as expansion in the three largest nations fell short of forecasts and Greece and Portugal contracted.
Countering this, German analyst and investor sentiment rose slightly in February amid confidence in Germany's economic recovery, a survey by the ZEW economic think tank showed. (Additional reporting by Jeremy Gaunt and Claire Milhench in London; Editing by Chizu Nomiyama)