Natural Gas Inventory -182 bcf vs -172 bcf Expected

December 21, 2017 10:30 AM EST

Natural Gas Inventory -182 bcf vs -172 bcf Expected

Working gas in underground storage, Lower 48 statesSummary text CSV JSN
Historical Comparisons
Stocks
billion cubic feet (Bcf)
Year ago
(12/15/16)
5-year average
(2012-16)
Region12/15/1712/08/17net changeimplied flow Bcf% changeBcf% change
East811 855 -44 -44 818 -0.9 831 -2.4
Midwest980 1,033 -53 -53 1,016 -3.5 975 0.5
Mountain204 213 -9 -9 232 -12.1 201 1.5
Pacific294 305 -11 -11 303 -3.0 333 -11.7
South Central1,155 1,220 -65 -65 1,257 -8.1 1,188 -2.8
Salt330 360 -30 -30 367 -10.1 331 -0.3
Nonsalt825 860 -35 -35 890 -7.3 857 -3.7
Total3,444 3,626 -182 -182 3,627 -5.0 3,528 -2.4

Summary

Working gas in storage was 3,444 Bcf as of Friday, December 15, 2017, according to EIA estimates. This represents a net decrease of 182 Bcf from the previous week. Stocks were 183 Bcf less than last year at this time and 84 Bcf below the five-year average of 3,528 Bcf. At 3,444 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 2012 through 2016. 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)
Region12/15/1712/08/17 net change
East1.4 1.4 0.8
Midwest1.7 1.6 1.5
Mountain1.6 1.6 0.2
Pacific2.3 2.4 1.0
South Central1.8 1.7 1.8
Salt3.7 3.6 1.6
Nonsalt2.0 1.9 0.7
Total0.9 0.8 2.6



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