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Underground Natural Gas Storage by All Operators
(Million Cubic Feet)
Data Series: Period:
 Monthly 
 Show Data By:
Data Series Area
Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 View
History
U.S.
7,631,398 7,817,329 8,124,520 8,429,727 8,398,584 7,802,285 1973-2025
Alaska
45,061 47,636 49,834 51,018 50,189 47,539 2013-2025
Lower 48 States
7,586,337 7,769,693 8,074,686 8,378,710 8,348,394 7,754,746 2011-2025
Alabama
27,723 30,232 32,904 37,056 37,343 34,203 1995-2025
Arkansas
16,976 17,896 18,523 19,082 18,478 17,362 1990-2025
California
545,581 537,391 542,490 556,859 550,896 543,974 1990-2025
Colorado
112,233 114,759 119,493 121,361 121,465 115,747 1990-2025
Illinois
857,780 886,626 928,064 972,894 972,460 924,749 1990-2025
Indiana
97,957 101,903 106,205 109,254 109,760 105,985 1990-2025
Iowa
231,199 237,346 252,495 270,167 276,349 258,023 1990-2025
Kansas
250,648 256,096 270,527 272,096 268,550 258,239 1990-2025
Kentucky
192,801 197,938 200,456 206,813 207,137 191,277 1990-2025
Louisiana
605,430 607,757 609,217 642,042 656,774 634,374 1990-2025
Maryland
58,432 59,280 61,272 62,078 62,607 62,412 1990-2025
Michigan
874,709 929,263 987,297 1,025,911 988,628 837,129 1990-2025
Minnesota
5,727 6,074 6,496 6,885 6,995 6,434 1990-2025
Mississippi
225,699 225,029 236,479 258,051 265,904 240,919 1990-2025
Missouri
12,450 12,442 12,499 12,936 13,137 12,725 1990-2025
Montana
209,054 213,991 219,763 221,167 218,368 211,272 1990-2025
Nebraska
33,162 32,870 32,862 33,215 33,357 33,128 1990-2025
New Mexico
66,541 65,922 68,172 69,850 72,753 73,109 1990-2025
New York
192,180 199,471 209,600 218,709 217,251 201,204 1990-2025
Ohio
465,286 490,366 515,653 526,803 515,759 485,375 1990-2025
Oklahoma
324,870 320,797 331,573 343,825 342,685 312,407 1990-2025
Oregon
34,092 33,297 33,937 34,930 36,094 34,974 1990-2025
Pennsylvania
604,464 636,856 681,284 711,231 706,520 640,045 1990-2025
Tennessee
2,456 2,456 2,456 2,456 2,437 2,397 1997-2025
Texas
778,332 765,535 776,196 808,711 834,340 776,509 1990-2025
Utah
117,255 119,869 124,205 127,601 126,406 119,488 1990-2025
Virginia
8,522 8,302 8,509 8,386 8,893 8,600 1997-2025
Washington
43,724 43,246 44,819 43,828 44,396 43,035 1990-2025
West Virginia
432,797 459,178 482,588 491,257 471,244 415,126 1990-2025
Wyoming
158,259 157,503 158,652 163,254 161,407 154,523 1990-2025
AGA Producing Region
            1994-2014
AGA Eastern Consuming Region
            1994-2014
AGA Western Consuming Region
            1994-2014
East Region
1,761,681 1,853,453 1,958,906 2,018,464 1,982,274 1,812,763 2013-2025
South Central Region
2,229,677 2,223,343 2,275,418 2,380,863 2,424,075 2,274,014 2013-2025
Midwest Region
2,275,079 2,374,048 2,495,968 2,607,318 2,576,902 2,338,719 2013-2025
Mountain Region
696,503 704,915 723,147 736,448 733,757 707,266 2013-2025
Pacific Region
623,397 613,934 621,246 635,616 631,386 621,984 2013-2025
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Change in Working Gas from Same Period, Previous Year, includes data for Alaska which had no working gas recorded for periods prior to January 2013.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 2/27/2026
Next Release Date: 3/31/2026