Here are the prices of some key commodities traded in New York on Friday:

Crude oil prices slid almost $2 to close at $93.01 a barrel, on concerns about the potential fallout from the Greek financial crisis. Investors are worried that Greece's internal political arguments over austerity measures could allow its financial woes to spread, hurting the global recovery and dampening demand for oil.

Coffee futures fell more than 8 cents to finish at $2.50 per pound.

Copper prices lost more than 1 cent to end at $4.10 a pound.

Cocoa futures gained $3 to $2,917 a ton.

In Chicago trading, wheat prices fell 35 cents to end at $6.73 a bushel.

Rice prices lost 21 cents to close at $15.00 a hundredweight