Wall Street weighed down by energy, materials stocks

By Abhiram Nandakumar(Reuters) – Wall Street looked set to snap a two-day rally in muted trade on Monday as retreating oil prices pulled down materials and energy stocks.
Crude prices resumed their slide after a strong two-day run last week, falling more than 4 percent on news that Iraq flooded a heavily oversupplied oil market with record output.
Wall Street is coming off its first week of gains in the year, with the three major indexes rising 2 percent on Friday.
Investors, already rattl