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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.
3,141,540 3,326,227 3,634,231 3,938,424 3,908,772 3,313,258 1973-2025
Alaska
30,864 33,439 35,637 36,820 35,992 33,342 2013-2025
Lower 48 States
3,110,677 3,292,789 3,598,594 3,901,604 3,872,779 3,279,916 2011-2025
Alabama
17,273 19,782 22,454 26,606 26,893 23,753 1995-2025
Arkansas
3,898 4,818 5,445 6,004 5,400 4,284 1990-2025
California
264,578 256,388 261,487 275,855 270,113 263,191 1990-2025
Colorado
51,250 53,776 58,510 60,044 60,025 54,307 1990-2025
Illinois
142,728 171,583 212,894 257,507 256,892 209,161 1990-2025
Indiana
16,693 20,639 24,941 27,990 28,496 24,660 1990-2025
Iowa
33,318 39,465 54,613 72,286 78,468 60,142 1990-2025
Kansas
86,855 92,303 106,734 108,303 104,758 94,446 1990-2025
Kentucky
80,976 86,112 88,630 94,988 95,312 79,452 1990-2025
Louisiana
308,253 309,658 311,091 344,047 358,752 336,853 1990-2025
Maryland
12,754 13,603 15,595 16,400 16,930 16,735 1990-2025
Michigan
488,297 542,852 600,885 639,028 601,745 450,246 1990-2025
Minnesota
879 1,226 1,648 2,037 2,147 1,586 1990-2025
Mississippi
105,053 104,385 115,824 137,417 145,300 120,460 1990-2025
Missouri
2,261 2,253 2,310 2,747 2,948 2,536 1990-2025
Montana
26,534 31,471 37,243 38,647 35,848 28,752 1990-2025
Nebraska
10,965 10,674 10,665 11,019 11,161 10,931 1990-2025
New Mexico
37,179 36,560 38,810 40,488 43,391 43,747 1990-2025
New York
74,867 81,946 92,431 101,867 100,339 84,528 1990-2025
Ohio
129,945 155,025 180,312 191,462 180,419 150,035 1990-2025
Oklahoma
155,483 151,411 162,186 174,439 173,299 143,020 1990-2025
Oregon
19,183 18,388 19,028 20,021 21,185 20,065 1990-2025
Pennsylvania
267,889 300,183 344,623 374,578 369,870 303,400 1990-2025
Tennessee
1,578 1,578 1,578 1,578 1,559 1,520 1997-2025
Texas
458,453 445,611 456,882 488,923 515,843 458,395 1990-2025
Utah
47,748 50,362 54,697 58,094 56,899 49,980 1990-2025
Virginia
4,492 4,272 4,479 4,356 4,863 4,570 1997-2025
Washington
21,424 20,946 22,519 21,528 22,096 20,735 1990-2025
West Virginia
163,889 190,267 213,674 222,341 202,675 146,154 1990-2025
Wyoming
75,982 75,253 76,402 81,004 79,157 72,273 1990-2025
AGA Producing Region
            1994-2014
AGA Eastern Consuming Region
            1994-2014
AGA Western Consuming Region
            1994-2014
East Region
653,837 745,296 851,114 911,004 875,094 705,421 2013-2025
South Central Region
1,135,268 1,127,967 1,180,616 1,285,739 1,330,245 1,181,212 2013-2025
Midwest Region
766,730 865,708 987,501 1,098,162 1,067,567 829,302 2013-2025
Mountain Region
249,658 258,096 276,328 289,295 286,480 259,989 2013-2025
Pacific Region
305,185 295,722 303,034 317,404 313,394 303,992 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