Toronto stocks finished the week on a losing note Friday, as sagging oil and metals prices pulled down resources shares.

The S&P/TSX composite index fell 91.93 points, or 0.68%, to close at 13,447.29. For the week, it rose 2.7%.

Outside of the resource sectors, the index was largely stronger on Friday, with seven of the 10 TSX main groups making gains.

A 5.4% drop in oil prices yanked the TSX’s heavily-weighted energy subgroup down 2.35%, while weaker prices for metals such as copper and gold dragged the materials group down 2.34%.

Oil prices plunged more than $6 US a barrel erasing gains from the previous day’s big rally.

Light, sweet crude for October delivery fell US$6.59 to settle at YS$114.59 US a barrel on the New York Mercantile Exchange.

Among energy issues, Talisman Energy fell 4.1% to $18.42, while Husky Energy eased 3.7% to finish at $46.67.

On the materials side, Yamana Gold dropped 5.3% to $11.37, while Iamgold eased 4.9% to $6.27.

The financials group gained 1.4%.

Mutual fund giant IGM Financial rose 2.5% to $42.18,

CI Financial units rose 5.4% to $22.11, after the company said it had talked with a number of parties about possible strategic combinations.