With subfreezing temperatures on the way, natural gas forward prices strengthened during the trading period from Nov. 3 to 8, according to NGI’s Forward Look.

Price swings were relatively modest at the front of the forward curve when compared with recent weeks, likely because the drop in temperatures is expected to be short lived. The majority of U.S. locations posted fixed natural gas price increases of less than a quarter, while New England markets posted substantial decreases. Notably, though, December fixed prices in the region are more than $10.00 above benchmark Henry Hub.

At the Algonquin Citygate, December natural gas forward prices tumbled 84.0 cents from Nov. 3 to 8 to reach $16.881, Forward Look data showed. This represents a $10.743 premium over Henry Hub. That...