US STOCKS-Wall St rallies after Fed, energy gains; S&P 500 posts best day since 2013
* Fed on track to raise rates sometime next year
* Energy shares lead gains on S&P 500
* Indexes up: Dow 1.7 pct, S&P 2 pct, Nasdaq 2.1 pct (Updates close with Oracle up after the bell)
By Caroline Valetkevitch
NEW YORK, Dec 17 (Reuters) - The S&P 500 scored its best day since October 2013 on Wednesday as the Federal Reserve gave an upbeat assessment of the U.S. economy and said it would take a patient approach toward raising interest rates.
The rally, which followed a three-day losing streak, was also driven by a 4.2 percent gain in the S&P energy index .
Following a two-day meeting, the U.S. central bank gave a strong signal that it was on track to raise interest rates sometime next year.
The Fed said it would take a "patient" approach in deciding when to bump borrowing costs higher, which Fed Chair Janet Yellen, at a news conference, defined as "at least a couple of meetings."
The statement from the Fed, which has kept benchmark rates near zero since 2008, came against a backdrop of solid domestic economic growth but trouble overseas. Continuación...