US STOCKS-Wall St inches higher en route to a winning week
* Oil prices fall after Goldman Sachs cuts forecast
* S&P poised for biggest weekly gain since July
* Zumiez falls after cutting third-qtr forecast
* Dow up 0.5 pct, S&P up 0.2 pct, Nasdaq up 0.3 pct (Updates to late afternoon)
By Caroline Valetkevitch
Sept 11 (Reuters) - U.S. stocks edged higher late Friday afternoon, putting the S&P 500 on track for its biggest weekly gain since July, but energy shares dropped after Goldman Sachs cut its oil price forecast through next year.
Eight of the 10 S&P 500 sectors were higher, led by gains in the consumer discretionary index, up 0.6 percent. Shares of homebuilders were up, bouncing back from Thursday's decline after JP Morgan raised price targets on PulteGroup , up 1.9 percent, and Meritage Homes, up 2.5 percent.
Oil prices fell after the Goldman forecast, which cited oversupply and concerns over China's economy. Goldman said crude oil could fall as low as $20 a barrel. ConocoPhillips, down 2.6 percent at $47.17, was the biggest drag on the S&P 500.
Economic data clouded the outlook for interest rates ahead of the Federal Reserve's policy meeting next week. Continuación...