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 January was approximately 83 percent of storage capacity.
In January 2020, Nebraska had the capacity to store 12,653 million cubic feet (mmcf) of working natural gas or working gas, and there was 6,820 mmcf working gas according to Energy Information Administration estimates. As shown in Figure 1 and the data table below, this volume of working gas was a decrease of 2,241 mmcf from December 2019 and 1,293 mmcf higher than last year at this time. Stocks were 322 mmcf lower than the five–year average. Figure 1 also shows that the volume of working gas was centered in the five–year range.