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Underground Natural Gas Storage by All Operators
(Million Cubic Feet)
Data Series: Period:
 Monthly 
 Show Data By:
Data Series Area
Mar-25 Apr-25 May-25 Jun-25 Jul-25 Aug-25 View
History
U.S.
6,326,377 6,630,453 7,126,080 7,480,813 7,633,713 7,819,649 1973-2025
Alaska
38,710 39,295 40,847 42,695 45,070 47,650 2013-2025
Lower 48 States
6,287,667 6,591,159 7,085,233 7,438,118 7,588,643 7,771,999 2011-2025
Alabama
30,887 34,873 37,303 34,149 27,723 30,232 1995-2025
Arkansas
13,658 14,128 15,042 15,975 16,976 17,896 1990-2025
California
467,114 487,600 511,812 531,914 545,581 537,391 1990-2025
Colorado
98,264 97,287 102,177 107,454 112,233 114,759 1990-2025
Illinois
791,778 791,597 809,598 837,874 857,780 886,626 1990-2025
Indiana
90,891 91,374 93,429 95,495 97,957 101,903 1990-2025
Iowa
222,867 222,296 226,437 231,024 231,199 237,346 1990-2025
Kansas
217,190 216,809 226,758 241,525 250,648 256,096 1990-2025
Kentucky
158,516 171,903 190,926 193,654 192,801 197,938 1990-2025
Louisiana
492,664 530,237 578,266 602,133 605,430 607,757 1990-2025
Maryland
53,163 54,187 57,394 59,124 58,432 59,280 1990-2025
Michigan
591,161 656,659 749,873 823,628 874,709 929,263 1990-2025
Minnesota
5,776 5,368 5,310 5,355 5,727 6,074 1990-2025
Mississippi
215,758 236,252 247,287 242,117 225,699 225,029 1990-2025
Missouri
12,373 12,450 12,454 12,444 12,450 12,442 1990-2025
Montana
196,583 197,251 200,960 204,674 209,054 213,991 1990-2025
Nebraska
30,290 30,693 31,725 32,876 33,162 32,870 1990-2025
New Mexico
65,626 65,721 66,498 65,996 66,541 65,922 1990-2025
New York
158,110 165,086 179,566 189,408 192,180 199,471 1990-2025
Ohio
392,040 398,555 423,679 446,093 465,286 490,366 1990-2025
Oklahoma
254,619 274,846 302,457 323,249 324,870 320,797 1990-2025
Oregon
21,343 22,555 27,174 32,318 34,092 33,297 1990-2025
Pennsylvania
463,414 492,561 553,509 596,130 604,464 636,856 1990-2025
Tennessee
2,269 2,269 2,289 2,363 2,456 2,456 1997-2025
Texas
647,122 689,047 737,868 773,619 780,638 767,841 1990-2025
Utah
90,774 96,130 105,224 111,948 117,255 119,869 1990-2025
Virginia
7,579 7,902 8,171 8,376 8,522 8,302 1997-2025
Washington
34,939 38,608 40,476 42,759 43,724 43,246 1990-2025
West Virginia
325,745 346,152 392,326 418,594 432,797 459,178 1990-2025
Wyoming
135,154 140,763 149,245 155,848 158,259 157,503 1990-2025
AGA Producing Region
            1994-2014
AGA Eastern Consuming Region
            1994-2014
AGA Western Consuming Region
            1994-2014
East Region
1,400,051 1,464,443 1,614,645 1,717,726 1,761,681 1,853,453 2013-2025
South Central Region
1,871,898 1,996,192 2,144,981 2,232,767 2,231,983 2,225,649 2013-2025
Midwest Region
1,875,631 1,953,915 2,090,317 2,201,839 2,275,079 2,374,048 2013-2025
Mountain Region
616,691 627,845 655,828 678,796 696,503 704,915 2013-2025
Pacific Region
523,396 548,763 579,462 606,991 623,397 613,934 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: 10/31/2025
Next Release Date: 11/28/2025