(Updates to U.S. market close)
* Europe, U.S. boost global stocks; Asia weighs on EM equities
* Japan stocks fall overnight but Nikkei futures jump
* U.S. crude rises the most in nearly three weeks
By Rodrigo Campos
NEW YORK, March 5 (Reuters) - Oil prices rallied on Monday and stocks across the globe also rose as investors saw tariff threats as a U.S. negotiating tactic and not a done deal, while concern ebbed over an inconclusive Italian election.
Stocks rose after four days of declines, with the U.S. benchmark S&P 500 higher and Europe closing near session highs as pressure grew on U.S. President Donald Trump to back off from planned tariffs on steel and aluminum.
"We have at least a bit of a rethink regarding the prospects of trade war," said Art Hogan, chief market strategist at B. Riley FBR in New York, of the midday swing to higher stock prices. He said the Trump administration "sees the stock market as a report card for success and markets have so far said this trade war is not a good idea."
Trump's hard talk regarding steel and aluminum tariffs "sounds like we're shifting back to posturing to get a better NAFTA deal," Hogan added.
Trump said on Monday that Canada and Mexico could avoid being caught in his planned hefty tariffs on steel and aluminum imports if they ceded ground to Washington in trilateral talks on a new North American trade deal.
The Dow Jones Industrial Average rose 336.7 points, or 1.37 percent, to 24,874.76, the S&P 500 gained 29.69 points, or 1.10 percent, to 2,720.94 and the Nasdaq Composite added 72.84 points, or 1 percent, to 7,330.71.
The pan-European FTSEurofirst 300 index rose 1.04 percent and MSCI's gauge of stocks across the globe gained 0.64 percent.
Emerging market stocks lost 0.34 percent, weighed lower overnight by Asia. MSCI's broadest index of Asia-Pacific shares outside Japan closed 0.99 percent lower. Japan's Nikkei lost 0.66 percent, but U.S.-traded Nikkei futures rose more than 1 percent.
The euro, which earlier fell as much as 0.4 percent versus the U.S. dollar, edged higher against most major peers, including the greenback.
The common currency was whiplashed by weekend elections, as Germany's Social Democrats voted to re-enter a grand coalition with Chancellor Angela Merkel's conservatives, while results from Italy pointed to a messier outcome than expected - a strong showing for anti-establishment parties and no group able to form a stable government.
Taken together, the election outcomes did not alter investors' view on the strength of the euro zone economy, although the Italian results put political risks in the region back on the radar.
"All in all, they are neutral to slightly positive for the euro," said Nick Bennenbroek, head of currency strategy at Wells Fargo Securities in New York.
The dollar index rose 0.09 percent, with the euro up 0.14 percent to $1.2334.
The Japanese yen weakened 0.40 percent versus the greenback at 106.16 per dollar, while Sterling was last trading at $1.3843, up 0.30 percent on the day.
The Mexican peso gained 0.02 percent versus the U.S. dollar at 18.79 and the Canadian dollar was down 0.85 percent against the greenback at 1.30 per dollar.
Crude prices rose on forecasts for robust oil demand growth and concerns OPEC will not be able to increase its production capacity.
U.S. crude rose 2.19 percent to $62.59 per barrel and Brent was last at $65.54, up 1.82 percent on the day.
Treasury yields turned higher as stocks surged pointing to more risk tolerance in markets.
"The bottom line is trade wars are not good… A trade war on steel and aluminum is going to help a small number of people and it’s going to hurt a lot more and drive up prices," said Mary Ann Hurley, vice president, fixed income trading at D.A. Davidson in Seattle.
Prices were also pressured by this week's heavy supply led by an expected CVS deal for more than $40 billion to finance its purchase of Aetna.
"There are thoughts there is going to be rate-lock selling. The supply on the corporate end is a factor that’s really hurting Treasuries," Hurley said.
Benchmark 10-year notes last fell 6/32 in price to yield 2.8789 percent, from 2.857 percent late on Friday.
The 30-year bond last fell 12/32 in price to yield 3.1514 percent, from 3.132 percent late on Friday.
Spot gold dropped 0.1 percent to $1,320.37 an ounce. U.S. gold futures fell 0.17 percent to $1,321.20 an ounce.
Copper rose 0.39 percent to $6,925.00 a tonne.
Reporting by Rodrigo Campos, additional reporting by Sinead Carew, Scot DiSavino, Richard Leong and Kate Duguid in New York Editing by Nick Zieminski, Lisa Shumaker and Cynthia Osterman