Weekly Natural Gas Storage Report
for week ending September 18, 2026 | Released: September 24, 2026 at 10:30 a.m. | Next Release: October 1, 2026
| Working gas in underground storage, Lower 48 states Summary text CSV JSN | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Historical Comparisons | |||||||||||||||||||||||||
| Stocks billion cubic feet (Bcf) |
Year ago (09/18/25) |
5-year average (2021-25) |
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| Region | 09/18/26 | 09/11/26 | net change | implied flow | Bcf | % change | Bcf | % change | |||||||||||||||||
| East | 815 | 795 | 20 | 20 | 803 | 1.5 | 775 | 5.2 | |||||||||||||||||
| Midwest | 959 | 934 | 25 | 25 | 941 | 1.9 | 927 | 3.5 | |||||||||||||||||
| Mountain | 244 | 241 | 3 | 3 | 265 | -7.9 | 228 | 7.0 | |||||||||||||||||
| Pacific | 292 | 289 | 3 | 3 | 300 | -2.7 | 266 | 9.8 | |||||||||||||||||
| South Central | 1,041 | 1,039 | 2 | 2 | 1,188 | -12.4 | 1,059 | -1.7 | |||||||||||||||||
| Salt | 217 | 222 | -5 | -5 | 298 | -27.2 | 248 | -12.5 | |||||||||||||||||
| Nonsalt | 825 | 817 | 8 | 8 | 888 | -7.1 | 811 | 1.7 | |||||||||||||||||
| Total | 3,351 | 3,298 | 53 | 53 | 3,497 | -4.2 | 3,256 | 2.9 | |||||||||||||||||
| Totals may not equal sum of components because of independent rounding. |
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Summary
Working gas in storage was 3,351 Bcf as of Friday, September 18, 2026, according to EIA estimates.
This represents a net increase of 53 Bcf from the previous week. Stocks were 146 Bcf less than last year at this time and 95 Bcf above the five-year average of 3,256 Bcf.
At 3,351 Bcf, total working gas is within the five-year historical range.
For information on sampling error in this report, see Estimated Measures of Sampling Variability table below.
Note: The shaded area indicates the range between the historical minimum and maximum values for the weekly series from 2021 through 2025. The dashed vertical lines indicate current and year-ago weekly periods.
| Estimated measures of sampling variabilityDownload History (April 2015 to Present) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Coefficient of Variation for Stocks % of working gas |
Standard Error for Net Change billion cubic feet (Bcf) |
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| Region | 09/18/26 | 09/11/26 | net change | ||||||||
| East | 0.6 | 0.6 | 0.4 | ||||||||
| Midwest | 0.8 | 0.8 | 0.4 | ||||||||
| Mountain | 3.0 | 2.9 | 0.3 | ||||||||
| Pacific | 0.0 | 0.0 | 0.0 | ||||||||
| South Central | 0.8 | 0.8 | 0.3 | ||||||||
| Salt | 1.3 | 1.2 | 0.2 | ||||||||
| Nonsalt | 1.0 | 1.0 | 0.3 | ||||||||
| Total | 0.4 | 0.4 | 0.8 | ||||||||