Natural Gas Inventory +89 bcf vs +89 bcf Expected

May 10, 2018 10:30 AM EDT

Natural Gas Inventory +89 bcf vs +89 bcf Expected

Stocks
billion cubic feet (Bcf)
Year ago
(05/04/17)
5-year average
(2013-17)
Region05/04/1804/27/18net changeimplied flow Bcf% changeBcf% change
East243 223 20 20 346 -29.8 347 -30.0
Midwest240 221 19 19 523 -54.1 398 -39.7
Mountain92 86 6 6 155 -40.6 127 -27.6
Pacific195 187 8 8 237 -17.7 246 -20.7
South Central662 626 36 36 1,033 -35.9 832 -20.4
Salt204 190 14 14 331 -38.4 252 -19.0
Nonsalt458 436 22 22 701 -34.7 580 -21.0
Total1,432 1,343 89 89 2,295 -37.6 1,952 -26.6

Some natural gas storage operators have reported net withdrawals from base gas, beginning with the week ending April 6, 2018. The cumulative net withdrawals of base gas were treated as negative working gas stocks and are reflected in the working gas inventories. As a result, a small portion of this week's reported net change may include flows from base gas.

Summary

Working gas in storage was 1,432 Bcf as of Friday, May 4, 2018, according to EIA estimates. This represents a net increase of 89 Bcf from the previous week. Stocks were 863 Bcf less than last year at this time and 520 Bcf below the five-year average of 1,952 Bcf. At 1,432 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)
Region05/04/1804/27/18 net change
East2.3 2.4 0.5
Midwest1.4 1.4 0.6
Mountain2.2 2.3 0.2
Pacific2.3 2.2 0.9
South Central1.9 2.0 1.0
Salt2.5 2.7 0.7
Nonsalt2.5 2.6 0.7
Total1.1 1.1 1.5

Cumulative net withdrawals from base gas are not reflected in estimated standard errors.


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