Major U.S. stock-indexes are moving to worst week in a month as oil falls. All three major indexes fell more than 1,5% on Friday and were on track for their worst weekly performance in a month as growing oversupply concerns dragged down crude oil prices to their 7-year lows.

The International Energy Agency said it sees the oil glut worsening in 2016 as demand slows and OPEC shows no signs of slowing production. The steep drop in oil prices adds to investor uncertainty as the U.S. Federal Reserve prepares to raise interest rates for the first time since June 2006 at its meeting next week.

All Dow stocks in negative area (30 of 30). Top looser - E. I. du Pont de Nemours and Company (DD, -5.61%).

All S&P index sectors also in negative area. Top looser - Basic Materials (-3.4%).

At the moment:

Dow 17206.00 -280.00 -1.60%

S&P 500 2007.75 -33.25 -1.63%

Nasdaq 100 4548.00 -90.25 -1.95%

Oil 35.68 -1.08 -2.94%

Gold 1075.00 +3.00 +0.28%

U.S. 10yr 2.16 -0.08