US STOCKS-Wall St ends up slightly as focus turns to earnings
* Dow up for 7th session
* EMC shares rise after Dell offer
* Energy sector down as crude prices slip
* Lilly sinks after experimental heart drug scrapped
* Indexes: Dow up 0.2 pct, S&P up 0.1 pct, Nasdaq up 0.2 pct (Updates to close)
By Caroline Valetkevitch
Oct 12 (Reuters) - Gains in utilities offset a retreat in energy shares on Monday, leaving U.S. stocks slightly higher as investors remained nervous about third-quarter corporate results.
The Dow rose for a seventh straight session, led by gains in UnitedHealth Group, which rose 2.7 percent at $122.51.
This week brings results from some top U.S. banks, among other companies, and investors are eyeing a projected 4.8 percent year-over-year decline in third-quarter S&P 500 earnings, according to Thomson Reuters data. That would be the worst earnings season in six years. Continuación...