Natural gas prices up 18 percent this week

NEW YORK (AP) — Concerns about another cold front enveloping the country next week are pushing natural gas prices higher, helping the commodity finish out its biggest week in two years.

March natural gas rose seven cents Friday, or 1 percent, to $6.14 per 1,000 cubic feet. Natural gas is up 18 percent this week, the most since April 2012.

Natural gas is by far the most popular form of heating in the U.S. The cold has caused demand to soar, and gas supplies have run low in parts of the country. The last time natural gas prices were this high was November 2008.

Heating oil, which is used primarily in the Northeast, fell 1.4 percent Friday.

In agricultural commodities, wheat and corn futures fell while soybeans rose.

Gold and silver futures rose.

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