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Weekly Natural Gas Storage Report

for week ending July 23, 2021   |   Released: July 29, 2021 at 10:30 a.m.   |   Next Release: August 5, 2021

Working gas in underground storage, Lower 48 states Summary text CSV JSN
    Historical Comparisons
Stocks
billion cubic feet (Bcf)
  Year ago
(07/23/20)
5-year average
(2016-20)
Region 07/23/21 07/16/21 net change implied flow   Bcf % change Bcf % change
East 583     562     21     21       704     -17.2     636     -8.3    
Midwest 702     683     19     19       813     -13.7     715     -1.8    
Mountain 184     183     1     1       195     -5.6     181     1.7    
Pacific 246     247     -1     -1       313     -21.4     289     -14.9    
South Central 999     1,002     -3     -3       1,212     -17.6     1,060     -5.8    
   Salt 269     279     -10     -10       340     -20.9     283     -4.9    
   Nonsalt 729     723     6     6       872     -16.4     776     -6.1    
Total 2,714     2,678     36     36       3,237     -16.2     2,882     -5.8    

Totals may not equal sum of components because of independent rounding.

Summary

Working gas in storage was 2,714 Bcf as of Friday, July 23, 2021, according to EIA estimates. This represents a net increase of 36 Bcf from the previous week. Stocks were 523 Bcf less than last year at this time and 168 Bcf below the five-year average of 2,882 Bcf. At 2,714 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.

Working Gas in Underground Storage Compared with Five-Year Range

Note: The shaded area indicates the range between the historical minimum and maximum values for the weekly series from 2016 through 2020. 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)
Region 07/23/21 07/16/21   net change
East 1.0     1.1       0.4    
Midwest 0.7     0.7       0.4    
Mountain 1.3     1.3       0.2    
Pacific 0.0     0.0       0.0    
South Central 0.7     0.7       0.3    
   Salt 1.7     1.7       0.2    
   Nonsalt 0.7     0.7       0.2    
Total 0.4     0.4       0.7