The traditional inventory–building season is April to October for natural gas. The volume of working gas in underground storage by November 1 has to meet winter's demands under any circumstance. The volume in storage in November was approximately 87 percent of storage capacity.
In November 2017, Nebraska had the capacity to store 12,653 mmcf of working natural gas or working gas, and there was 11,008 mmcf working gas according to Energy Information Administration estimates. As shown in the graph below, this volume of working gas is an increase of 232 mmcf from last month but 726 mmcf lower than last year at this time. Stocks were 1,308 mmcf lower than the five–year average. The graph also shows that the volume of working gas was at the bottom of the five–year range.
In November 2017, Nebraska had the capacity to store at least 34,850 million cubic feet (mmcf) of total natural gas (base gas plus working gas). Total natural gas in underground storage in Nebraska for November was 33,204 mmcf which was approximately 95 percent of storage capacity.