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Underground Natural Gas Storage by All Operators
(Million Cubic Feet)
Data Series: Period:
 Monthly 
 Show Data By:
Data Series Area
Apr-25 May-25 Jun-25 Jul-25 Aug-25 Sep-25 View
History
U.S.
6,630,453 7,126,078 7,480,808 7,633,704 7,819,635 8,127,744 1973-2025
Alaska
39,295 40,845 42,690 45,061 47,636 49,834 2013-2025
Lower 48 States
6,591,159 7,085,233 7,438,118 7,588,643 7,771,999 8,077,909 2011-2025
Alabama
34,873 37,303 34,149 27,723 30,232 32,904 1995-2025
Arkansas
14,128 15,042 15,975 16,976 17,896 18,523 1990-2025
California
487,600 511,812 531,914 545,581 537,391 542,490 1990-2025
Colorado
97,287 102,177 107,454 112,233 114,759 119,493 1990-2025
Illinois
791,597 809,598 837,874 857,780 886,626 928,064 1990-2025
Indiana
91,374 93,429 95,495 97,957 101,903 106,205 1990-2025
Iowa
222,296 226,437 231,024 231,199 237,346 252,495 1990-2025
Kansas
216,809 226,758 241,525 250,648 256,096 270,527 1990-2025
Kentucky
171,903 190,926 193,654 192,801 197,938 200,456 1990-2025
Louisiana
530,237 578,266 602,133 605,430 607,757 609,217 1990-2025
Maryland
54,187 57,394 59,124 58,432 59,280 61,272 1990-2025
Michigan
656,659 749,873 823,628 874,709 929,263 987,297 1990-2025
Minnesota
5,368 5,310 5,355 5,727 6,074 6,496 1990-2025
Mississippi
236,252 247,287 242,117 225,699 225,029 236,479 1990-2025
Missouri
12,450 12,454 12,444 12,450 12,442 12,499 1990-2025
Montana
197,251 200,960 204,674 209,054 213,991 219,763 1990-2025
Nebraska
30,693 31,725 32,876 33,162 32,870 32,862 1990-2025
New Mexico
65,721 66,498 65,996 66,541 65,922 68,172 1990-2025
New York
165,086 179,566 189,408 192,180 199,471 209,602 1990-2025
Ohio
398,555 423,679 446,093 465,286 490,366 515,653 1990-2025
Oklahoma
274,846 302,457 323,249 324,870 320,797 331,573 1990-2025
Oregon
22,555 27,174 32,318 34,092 33,297 33,937 1990-2025
Pennsylvania
492,561 553,509 596,130 604,464 636,856 681,284 1990-2025
Tennessee
2,269 2,289 2,363 2,456 2,456 2,456 1997-2025
Texas
689,047 737,868 773,619 780,638 767,841 779,418 1990-2025
Utah
96,130 105,224 111,948 117,255 119,869 124,205 1990-2025
Virginia
7,902 8,171 8,376 8,522 8,302 8,509 1997-2025
Washington
38,608 40,476 42,759 43,724 43,246 44,819 1990-2025
West Virginia
346,152 392,326 418,594 432,797 459,178 482,588 1990-2025
Wyoming
140,763 149,245 155,848 158,259 157,503 158,652 1990-2025
AGA Producing Region
            1994-2014
AGA Eastern Consuming Region
            1994-2014
AGA Western Consuming Region
            1994-2014
East Region
1,464,443 1,614,645 1,717,726 1,761,681 1,853,453 1,958,908 2013-2025
South Central Region
1,996,192 2,144,981 2,232,767 2,231,983 2,225,649 2,278,640 2013-2025
Midwest Region
1,953,915 2,090,317 2,201,839 2,275,079 2,374,048 2,495,968 2013-2025
Mountain Region
627,845 655,828 678,796 696,503 704,915 723,147 2013-2025
Pacific Region
548,763 579,462 606,991 623,397 613,934 621,246 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: 11/28/2025
Next Release Date: 12/31/2025