US STOCKS-Wall St ends mixed, energy shares fall
* S&P energy index falls with Brent crude oil futures
* July construction spending reaches 5-1/2 year high
* Dollar General raises Family Dollar bid
* Digital Ally shares extend rally
* Indexes: Dow off 0.18 pct, S&P off 0.05 pct, Nasdaq up 0.39 pct (Updates to close)
By Akane Otani
NEW YORK, Sept 2 (Reuters) - U.S. stocks ended mostly lower on Tuesday, retreating from records set the previous month, as falling crude oil prices dragged energy shares down and offset strong manufacturing data.
The S&P energy index fell 1.3 percent as the prospect of slowing demand for oil in China and Europe and concerns about an oversupply of oil brought Brent crude oil futures to their lowest price since May 31, 2013. Peabody Energy Corp was the biggest loser among the S&P energy names, falling 3.7 percent to $15.29.
The strengthening dollar, which rose to its highest this year against the yen, was also seen as weighing on oil prices. Continuación...