US STOCKS-Energy shares drag Wall St down, Yellen speech awaited
* Yellen to speak in New York at around midday
* Lennar up after results
* Indexes down: Dow 0.49 pct, S&P 0.39 pct, Nasdaq 0.30 pct (Updates to open)
By Abhiram Nandakumar
March 29 (Reuters) - Wall Street was lower on Tuesday as oil prices skidded, and investors awaited Federal Reserve Chair Janet Yellen's speech for clues on when the central bank may raise interest rates.
Crude oil fell about 3 percent amid concerns that a two-month rally may be in danger of fizzling.
Yellen, who is due to speak before the Economic Club of New York at 12:20 p.m. ET (1620 GMT), will make her first remarks since the Fed's meeting in March.
The central bank has said it will depend on economic data before it makes a decision on rates, but several policymakers have voiced support for more than one increase this year.
Investors will keep a close eye on Yellen's speech as they look for fresh drivers that could push stocks higher. Continuación...