US STOCKS-Wall Street moves higher, led by energy shares
* Energy companies push stocks higher
* Norfolk Southern gives weak outlook, shares fall
* Expectations low as earnings season picks up
* Dow up 0.44 pct, S&P up 0.16, Nasdaq down 0.31 pct (Updates to afternoon trading)
By Noel Randewich
NEW YORK, April 14 (Reuters) - The Dow and S&P 500 moved higher on Tuesday, helped by energy stocks and March-quarter earnings reports that topped modest expectations but did little to reduce concerns about the strong dollar.
Shares of Exxon Mobil, Chevron and other energy companies followed crude higher after a forecast that U.S. shale oil output in May would record its first monthly decline in more than four years. The S&P 500 energy index jumped 1.95 percent.
Johnson & Johnson cut its full-year forecast, citing the impact of a strong dollar, though adjusted earnings topped expectations. Shares of the Dow component were up 0.29 percent.
Norfolk Southern Corp was the biggest decliner on the S&P 500, dropping 5.6 percent to $98.95 a day after it forecast a surprise drop in its first-quarter earnings and revenue. Continuación...