Weekly Natural Gas Storage Report - EIA
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Weekly Natural Gas Storage Report

for week ending August 10, 2018   |   Released: August 16, 2018 at 10:30 a.m.   |   Next Release: August 23, 2018

Working gas in underground storage, Lower 48 states Summary text CSV JSN
    Historical Comparisons
Stocks
billion cubic feet (Bcf)
  Year ago
(08/10/17)
5-year average
(2013-17)
Region 08/10/18 08/03/18 net change implied flow   Bcf % change Bcf % change
East 592     575     17     17       697     -15.1     694     -14.7    
Midwest 603     579     24     24       794     -24.1     759     -20.6    
Mountain 151     148     3     3       204     -26.0     183     -17.5    
Pacific 240     245     -5     -5       292     -17.8     320     -25.0    
South Central 801     807     -6     -6       1,088     -26.4     1,026     -21.9    
   Salt 190     200     -10     -10       284     -33.1     271     -29.9    
   Nonsalt 610     607     3     3       804     -24.1     755     -19.2    
Total 2,387     2,354     33     33       3,074     -22.3     2,982     -20.0    

EIA will begin publishing estimates based on a new sample selected for the Weekly Natural Gas Storage Report (WNGSR) on September 13, 2018, with the report for the week ending September 7, 2018. On Monday, September 10, 2018, EIA will revise estimates for the eight weeks covering July 13, 2018, through August 31, 2018, to gradually phase in the estimates from the new sample. Although the established sampling and estimation methodologies for the WNGSR have not changed, estimates produced from the new sample will reflect the most recent version of the EIA's Form EIA-912, which requires storage operators in the South Central region to separately report the volume of working natural gas held in salt facilities and nonsalt facilities. For additional information, please see the notice of changes to the WNGSR: http://ir.eia.gov/ngs/notice.html.

Summary

Working gas in storage was 2,387 Bcf as of Friday, August 10, 2018, according to EIA estimates. This represents a net increase of 33 Bcf from the previous week. Stocks were 687 Bcf less than last year at this time and 595 Bcf below the five-year average of 2,982 Bcf. At 2,387 Bcf, total working gas is below 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 2013 through 2017. 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 08/10/18 08/03/18   net change
East 1.2     1.3       0.2    
Midwest 1.9     1.9       1.0    
Mountain 2.4     2.3       0.3    
Pacific 3.8     3.1       1.6    
South Central 1.5     1.5       1.1    
   Salt 1.6     1.7       1.0    
   Nonsalt 1.9     1.9       0.5    
Total 0.9     0.8       2.3