US STOCKS-Futures fall on weak oil; earnings in focus
* Futures down: Dow 14 pts, S&P 3.25 pts, Nasdaq 3.25 pts
By Yashaswini Swamynathan
Oct 11 (Reuters) - U.S. stock index futures were slightly lower on Tuesday as oil prices fell and investors braced for quarterly corporate earnings season.
* Oil prices fell 0.56 percent, a day after hitting a one-year high as investors questioned whether a deal to cut output would be enough to reduce the supply glut.
* The third-quarter corporate earnings period unofficially kicks off, with aluminum producer Alcoa reporting results.
* Overall earnings of S&P 500 companies are expected to fall by 0.7 percent in the third quarter, according to Thomson Reuters data.
* Wall Street closed higher on Monday as energy shares benefited from a surge in oil prices and as Apple jumped due to rival Samsung Electronics' worsening smartphone recall crisis.
* The iPhone maker's stock was up 1.25 percent in premarket trading on Tuesday.
* The markets are likely to be volatile as the earnings season will turn the spotlight on valuations, while a tight race for the White House and a potential U.S. interest rate increase by the year-end will add to the jitters. Continuación...