Nymex crude for March delivery fell $1.70 per barrel this week, or 2.33% to $71.19.

• Down 13.97%, over the last four weeks.
• Today, it fell $1.95, or 2.67%.
• Lowest settle since December 15, 2009.
• Intraday, it traded as high as $73.94, and as low as $69.50.

Nymex natural gas for March delivery gained 38.4 cents per million BTUs this week, or 7.48% to $5.515.

• Best week since the week ending December 18, 2009.
• Today, it is up 9.9 cents, or 1.83%.

Comex gold for February delivery declined $30.80 per troy ounce this week, or 2.84% to $1052.20.

• Down $86.00, or 7.56% over the last four weeks.
• Today, gold declined $10.20, or 0.96%.
• Lowest settle since October 30, 2009.

Comex copper for February delivery declined 19.20 cents per pound this week, or 6.30% to $2.8540.

• Down 53.40 cents per pound, or 15.76% over the past four weeks.
• Today, copper declined 2.15 cents, or 0.75%.
• Lowest settle since October 16, 2009.