US STOCKS-Dow, S&P dragged down by poor earnings from Exxon, Chevron
* Second-qtr wage growth slowest in 33 years
* Exxon, Chevron fall as weak oil prices weigh on profits
* Expedia, YRC rise after results
* Dow down 0.33 pct, S&P down 0.09 pct, Nasdaq up 0.07 pct (Updates to open)
By Tanya Agrawal
July 31 (Reuters) - The Dow and S&P 500 were dragged down on Friday by weak earnings from oil producers Exxon Mobil and Chevron, while the Nasdaq edged up after Amgen's profit beat expectations.
Exxon Mobil shares fell 4 percent to $79.52 while Chevron was down 4.2 percent at $89.06 after quarterly profits slumped on falling oil prices.
Amgen rose 4.7 percent to $179.64 after the world's largest biotechnology company reported higher-than-expected second-quarter results.
Wall Street opened higher after an historically weak reading of U.S wage growth lent weight to the view that the Fed could delay a rate increase. Continuación...