According to the U.S. Energy Information Administration (EIA) weekly natural gas storage report, working natural gas in storage was 3,644 billion cubic feet (Bcf) as of 11 November. That inventory was 4 Bcf higher than last year at this time and 7 Bcf below the five-year average of 3,651 Bcf. Despite falling slightly below the average, this represents a significant rebuilding of stocks back to near the five-year average, and the closest to the historical average since January. As far as natural gas prices for inputs, that is generally positive news.

The normal refilling season for stocks runs from 1 April (noted in the chart above) to 31 October (give or take a week or two as refilling continues into the heating season). Inventories were...