Pockets of cold weather combined with rising production and near-record liquefied natural gas (LNG) demand to create a mixed bag of gains and losses for natural gas forward prices for the trading period from Nov. 18-23, according to NGI’s Forward Look.

The most significant losses were seen in the Pacific Northwest, where forward prices plunged in response to higher gas imports from Western Canada. Enbridge Inc. on Monday said it returned  the T-South leg of the Westcoast Energy pipeline to normal operations after a brief reduction in flows. Heavy rains, flooding and mudslides prompted the pipeline to reduce flows last week on the T-South leg that transports gas to the Pacific Northwest, sending cash and futures prices alike soaring.

With the pipeline operating back at normal...