| 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: https://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.
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 | | |
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