US STOCKS-Wall St up for 3rd day, led by energy shares
* Energy shares have best week since December 2011
* Indexes up: Dow 0.15 pct, S&P 500 0.46 pct, Nasdaq 0.36 pct
* Major indexes gain for the week but close shy of records (Updates to close)
By Caroline Valetkevitch
NEW YORK, Dec 19 (Reuters) - U.S. stocks extended gains for a third session on Friday, giving the S&P 500 its best weekly performance in nearly two months as energy shares continued to rebound.
The S&P energy index jumped 3.1 percent, leading the benchmark index's advance, and closed out the week with a 9.7 percent gain, its biggest weekly increase since December 2011.
The benchmark S&P 500 has gained 5 percent over the three sessions, bouncing back quickly from recent losses sparked by a selloff in oil prices.
The key driver of this week's rally was the U.S. Federal Reserve's commitment on Wednesday to take a "patient" approach toward raising interest rates, which relieved investors over the policy outlook.
"Fears have been at least pushed once again to the sidelines," said Michael James, managing director of equity trading at Wedbush Securities in Los Angeles. Continuación...