* Wall Street ends higher with boost from banks, energy
* U.S. bond yields retreat as market selloff fades
* Brent up to 2015 high on hopes OPEC will not end supply cuts abruptly (Updates with U.S. markets close)
By Laila Kearney
NEW YORK, Dec 21 (Reuters) - Leading global stock markets climbed on Thursday, fueled by a boost in bank and energy shares coupled with overall investor optimism after the recent passage of a $1.5 trillion tax cut plan in Washington.
Investors were hopeful the Republican-backed tax legislation, which slashes corporate income tax rates to 21 percent in the most dramatic overhaul of its kind in more than three decades, prompts companies to deploy additional capital on dividends, new projects and wages.
"There's still the after-effects of tax reform being passed," said Michael Antonelli, managing director at Robert W. Baird in Milwaukee. "I get the sense that the market is very optimistic about next year."
Energy and financial stocks led gains among the 11 major S&P sectors. Energy, in particular, had underperformed in 2017.
The Dow Jones Industrial Average rose 55.64 points, or 0.23 percent, to close at 24,782.29, the S&P 500 gained 5.32 points, or 0.20 percent, to 2,684.57 and the Nasdaq Composite added 4.40 points, or 0.06 percent, to 6,965.36.
MSCI's gauge of stocks across the globe gained 0.24 percent. The pan-European FTSEurofirst 300 index rose 0.66 percent.
Solid economic growth data from the U.S. Commerce Department also helped boost stocks. The U.S. economy grew at its fastest rate in more than two years in the third quarter and was poised for a slight boost next year from the tax bill.
U.S. Treasury yields held at lower levels, with 10-year yields scaling back from a nine-month peak, providing a respite from a sharp three-day bond market selloff tied to the tax plan, as investors began bargain hunting.
In Europe, the premium investors demand for holding Spanish bonds over top-rated German peers fell to its lowest in almost three months as Catalonia held an independence election.
Euro zone bond yields held near multi-week highs mostly on the U.S. tax code overhaul vote and passage.
The U.S. dollar inched lower in light trading, with investors pausing ahead of the holidays and attempting to digest the implications of U.S. tax reform.
The dollar index, tracking the greenback against a basket of major currencies, fell 0.05 percent, with the euro up 0.04 percent to $1.1874. The greenback was on track to post its worst annual performance in 14 years.
Spot gold, which benefits on a weakened dollar, added 0.1 percent to $1,266.88 an ounce. U.S. gold futures gained 0.06 percent to $1,270.40 an ounce.
Brent oil prices rose enough to close at the highest since the summer of 2015 as the Organization of the Petroleum Exporting Countries started work on plans for an exit strategy from its deal to cut crude supplies.
Brent futures gained 34 cents, or 0.5 percent, to settle at $64.90 a barrel, while U.S. West Texas Intermediate crude rose 27 cents, or 0.5 percent, to settle at $58.36. It was the highest close for Brent since June 2015 and for WTI since Nov. 24.
Additional reporting Marc Jones in London, Gertrude Chavez-Dreyfuss and Scott DiSavino in New York, Sruthi Shankar in Bengaluru and Fanny Potkin and Dhara Ranasinghe in London; Editing by Bernadette Baum and James Dalgleish