Natural Gas Inventory +70 bcf vs +60 bcf Expected

August 30, 2018 10:30 AM EDT

Natural Gas Inventory +70 bcf vs +60 bcf Expected

Stocks
billion cubic feet (Bcf)
Year ago
(08/24/17)
5-year average
(2013-17)
Region08/24/1808/17/18net changeimplied flow Bcf% changeBcf% change
East640 613 27 27 746 -14.2 737 -13.2
Midwest667 632 35 35 837 -20.3 815 -18.2
Mountain157 153 4 4 205 -23.4 189 -16.9
Pacific241 239 2 2 300 -19.7 323 -25.4
South Central800 798 2 2 1,062 -24.7 1,029 -22.3
Salt183 185 -2 -2 264 -30.7 262 -30.2
Nonsalt617 613 4 4 797 -22.6 767 -19.6
Total2,505 2,435 70 70 3,151 -20.5 3,093 -19.0

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 2,505 Bcf as of Friday, August 24, 2018, according to EIA estimates. This represents a net increase of 70 Bcf from the previous week. Stocks were 646 Bcf less than last year at this time and 588 Bcf below the five-year average of 3,093 Bcf. At 2,505 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)
Region08/24/1808/17/18 net change
East1.2 1.2 0.6
Midwest2.0 2.0 0.9
Mountain2.8 2.6 0.5
Pacific4.9 4.3 1.5
South Central1.6 1.5 1.0
Salt1.8 1.7 0.5
Nonsalt1.9 1.9 0.9
Total0.9 0.9 2.2



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