Weekly Gas Storage: Inventories increase by 15 Bcf

Natural Gas Inventories as of August 21, 2026

The EIA has released its natural gas inventory report, showing a net increase of 15 Bcf as of August 21, 2026.

Working gas in storage was 3,184 Bcf as of Friday, August 21, 2026, according to EIA estimates. This represents a net increase of 15 Bcf from the previous week. Stocks were 30 Bcf less than last year at this time and 167 Bcf above the five-year average of 3,017 Bcf.

At 3,184 Bcf, total working gas is within the five-year historical range.

Working gas in underground storage, Lower 48 states

Historical Comparisons

Stocks
billion cubic feet (Bcf)

Year ago
(08/21/25)
5-year average
(2021-25)

Region
08/21/26

08/14/26

net change
implied flow

Bcf
% change
Bcf
% change

East
727
708
19
19

705
3.1
692
5.1

Midwest
866
848
18
18

829
4.5
818
5.9

Mountain
238
237
1
1

254
-6.3
214
11.2

Pacific
393
296
-3
-3

298
-1.7
263
11.4

South Central
1,061
1,080
-19
19

1,127
-5.9
1,030
3.0

   Salt
248
268
-20
-20

273
-9.2
243
2.1

   Nonsalt
813
812
1
1

854
-4.8
788
3.2

Total
3,184
3,169
15
15

3,214
-0.9

3,017
5.5

Totals may not equal sum of components because of independent rounding.

All regions experienced an increase, except for Pacific, and South Central Salt.

All regions are above the five-year average..

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