Weekly Natural Gas Storage Report
for week ending September 22, 2023 | Released: September 28, 2023 at 10:30 a.m. | Next Release: October 5, 2023
Working gas in underground storage, Lower 48 states Summary text CSV JSN | |||||||||||||||||||||||||
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Historical Comparisons | |||||||||||||||||||||||||
Stocks billion cubic feet (Bcf) |
Year ago (09/22/22) |
5-year average (2018-22) |
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Region | 09/22/23 | 09/15/23 | net change | implied flow | Bcf | % change | Bcf | % change | |||||||||||||||||
East | 821 | 793 | 28 | 28 | 717 | 14.5 | 778 | 5.5 | |||||||||||||||||
Midwest | 962 | 931 | 31 | 31 | 874 | 10.1 | 914 | 5.3 | |||||||||||||||||
Mountain | 234 | 228 | 6 | 6 | 175 | 33.7 | 194 | 20.6 | |||||||||||||||||
Pacific | 271 | 263 | 8 | 8 | 242 | 12.0 | 269 | 0.7 | |||||||||||||||||
South Central | 1,071 | 1,053 | 18 | 18 | 955 | 12.1 | 1,015 | 5.5 | |||||||||||||||||
Salt | 250 | 242 | 8 | 8 | 203 | 23.2 | 236 | 5.9 | |||||||||||||||||
Nonsalt | 821 | 811 | 10 | 10 | 751 | 9.3 | 779 | 5.4 | |||||||||||||||||
Total | 3,359 | 3,269 | 90 | 90 | 2,962 | 13.4 | 3,170 | 6.0 | |||||||||||||||||
Totals may not equal sum of components because of independent rounding. |
Summary
Working gas in storage was 3,359 Bcf as of Friday, September 22, 2023, according to EIA estimates.
This represents a net increase of 90 Bcf from the previous week. Stocks were 397 Bcf higher than last year at this time and 189 Bcf above the five-year average of 3,170 Bcf.
At 3,359 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 2018 through 2022. The dashed vertical lines indicate current and year-ago weekly periods.
Estimated measures of sampling variabilityDownload History (April 2015 to Present) | |||||||||||
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Coefficient of Variation for Stocks % of working gas |
Standard Error for Net Change billion cubic feet (Bcf) |
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Region | 09/22/23 | 09/15/23 | net change | ||||||||
East | 0.9 | 0.9 | 0.4 | ||||||||
Midwest | 0.9 | 0.9 | 0.4 | ||||||||
Mountain | 1.4 | 1.4 | 0.1 | ||||||||
Pacific | 0.0 | 0.0 | 0.0 | ||||||||
South Central | 0.6 | 0.6 | 0.4 | ||||||||
Salt | 1.4 | 1.5 | 0.2 | ||||||||
Nonsalt | 0.6 | 0.6 | 0.4 | ||||||||
Total | 0.4 | 0.4 | 0.7 | ||||||||