Natural Gas Inventory 106 bcf vs 104 bcf Expected

May 17, 2018 10:30 AM EDT

Natural Gas Inventory 106 bcf vs 104 bcf Expected

Stocks
billion cubic feet (Bcf)
Year ago
(05/11/17)
5-year average
(2013-17)
Region05/11/1805/04/18net changeimplied flow Bcf% changeBcf% change
East275 243 32 32 365 -24.7 373 -26.3
Midwest267 240 27 27 538 -50.4 421 -36.6
Mountain98 92 6 6 160 -38.8 131 -25.2
Pacific204 195 9 9 243 -16.0 254 -19.7
South Central694 662 32 32 1,054 -34.2 860 -19.3
Salt216 204 12 12 336 -35.7 262 -17.6
Nonsalt477 458 19 19 717 -33.5 597 -20.1
Total1,538 1,432 106 106 2,359 -34.8 2,039 -24.6

Some natural gas storage operators reported net withdrawals from base gas, beginning with the week ending April 6, 2018, and ending with the week ending May 4, 2018. The cumulative net withdrawals of base gas were treated as negative working gas stocks and are reflected in the working gas inventories.

Summary

Working gas in storage was 1,538 Bcf as of Friday, May 11, 2018, according to EIA estimates. This represents a net increase of 106 Bcf from the previous week. Stocks were 821 Bcf less than last year at this time and 501 Bcf below the five-year average of 2,039 Bcf. At 1,538 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 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)
Region05/11/1805/04/18 net change
East2.1 2.3 0.4
Midwest1.4 1.4 0.8
Mountain2.2 2.2 0.4
Pacific2.3 2.3 0.5
South Central1.9 1.9 0.8
Salt2.4 2.5 0.6
Nonsalt2.5 2.5 0.6
Total1.0 1.1 1.4

For the week ending May 4, 2018, cumulative net withdrawals from base gas are not reflected in estimated standard errors.


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