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|View History: Monthly Download Data (XLS File)                               
|View History: Monthly                                                         
|View History: Monthly                                                         
|View History:                                                                 
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|U.S. Natural Gas Salt Underground Storage - Working Gas   (Million Cubic Feet)
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|U.S. Natural Gas Salt Underground Storage - Working Gas   (Million Cubic Feet)
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|Year                                                                                                                              | Jan     | Feb     | Mar     | Apr     | May     | Jun     | Jul     | Aug     | Sep     | Oct     | Nov     | Dec    
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1994                                                                                                                              | 47,455  | 36,864  | 41,979  | 49,646  | 58,678  | 56,813  | 63,882  | 64,460  | 70,583  | 72,447  | 73,277  | 69,641 
|                                                                                                                                 
|1995                                                                                                                              | 72,965  | 64,476  | 58,510  | 66,025  | 73,529  | 78,437  | 76,026  | 63,026  | 80,949  | 87,711  | 83,704  | 71,638 
|1996                                                                                                                              | 58,880  | 47,581  | 37,918  | 56,995  | 62,439  | 71,476  | 70,906  | 75,927  | 84,962  | 88,061  | 87,029  | 85,140 
|1997                                                                                                                              | 57,054  | 49,490  | 55,865  | 58,039  | 73,265  | 79,811  | 65,589  | 66,536  | 77,598  | 93,020  | 95,180  | 82,610 
|1998                                                                                                                              | 69,390  | 68,851  | 63,549  | 80,476  | 82,711  | 83,080  | 90,544  | 92,319  | 83,365  | 115,709 | 118,521 | 104,104
|1999                                                                                                                              | 82,043  | 77,133  | 67,758  | 77,908  | 94,436  | 101,788 | 95,521  | 102,210 | 111,680 | 115,048 | 116,495 | 99,921 
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|2000                                                                                                                              | 64,686  | 65,513  | 68,762  | 73,606  | 77,383  | 90,189  | 97,110  | 89,625  | 100,844 | 107,493 | 110,471 | 71,905 
|2001                                                                                                                              | 73,430  | 66,772  | 53,088  | 70,924  | 85,107  | 84,689  | 88,705  | 85,959  | 100,321 | 108,318 | 123,340 | 114,611
|2002                                                                                                                              | 92,677  | 74,034  | 64,952  | 76,701  | 93,328  | 103,526 | 91,112  | 95,656  | 102,493 | 108,402 | 105,757 | 102,085
|2003                                                                                                                              | 56,375  | 37,527  | 57,340  | 71,998  | 87,088  | 97,650  | 98,424  | 102,160 | 123,017 | 129,417 | 124,825 | 124,988
|2004                                                                                                                              | 92,335  | 66,733  | 77,524  | 85,881  | 94,646  | 107,676 | 114,858 | 110,912 | 103,082 | 124,414 | 126,755 | 98,268 
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|2005                                                                                                                              | 80,142  | 87,269  | 75,497  | 91,043  | 100,018 | 100,865 | 91,937  | 83,303  | 86,596  | 115,230 | 134,822 | 122,827
|2006                                                                                                                              | 128,836 | 97,781  | 97,539  | 115,592 | 126,108 | 127,828 | 113,612 | 111,338 | 135,837 | 140,349 | 146,459 | 144,291
|2007                                                                                                                              | 109,286 | 74,136  | 93,355  | 101,900 | 123,430 | 125,656 | 133,372 | 112,984 | 125,135 | 147,002 | 135,311 | 123,204
|2008                                                                                                                              | 76,156  | 81,773  | 92,536  | 107,146 | 127,487 | 138,463 | 140,451 | 138,983 | 116,011 | 140,963 | 156,854 | 154,332
|2009                                                                                                                              | 104,572 | 93,719  | 114,268 | 148,853 | 182,639 | 187,219 | 200,469 | 203,991 | 221,991 | 228,689 | 243,351 | 185,769
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|2010                                                                                                                              | 109,460 | 76,953  | 112,185 | 154,702 | 183,331 | 186,132 | 176,996 | 167,511 | 204,722 | 251,719 | 271,964 | 220,417
|2011                                                                                                                              | 174,414 | 125,066 | 151,198 | 172,023 | 211,140 | 214,240 | 185,990 | 169,061 | 203,835 | 281,390 | 315,569 | 309,026
|2012                                                                                                                              | 276,759 | 244,172 | 292,533 | 285,236 | 282,422 | 281,588 | 256,624 | 241,799 | 276,900 | 329,201 | 332,418 | 306,441
|2013                                                                                                                              | 251,545 | 200,250 | 175,681 | 213,394 | 257,613 | 269,357 | 273,112 | 263,930 | 296,343 | 330,570 | 312,560 | 267,730
|2014                                                                                                                              | 142,726 | 94,832  | 68,247  | 119,358 | 178,935 | 208,878 | 226,099 | 229,093 | 270,893 | 330,904 | 335,283 | 340,855
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|2015                                                                                                                              | 252,270 | 126,686 | 138,401 | 220,660 | 283,136 | 297,487 | 296,996 | 301,018 | 332,729 | 375,893 | 389,384 | 387,099
|2016                                                                                                                              | 312,055 | 294,962 | 322,486 | 358,453 | 367,583 | 348,408 | 318,719 | 281,303 | 294,992 | 383,088 | 402,434 | 348,523
|2017                                                                                                                              | 337,845 | 327,528 | 291,861 | 326,058 | 342,541 | 339,164 | 303,810 | 278,944 | 317,579 | 350,437 | 378,777 | 296,514
|2018                                                                                                                              | 192,120 | 195,679 | 192,209 | 202,357 | 248,679 | 255,073 | 213,511 | 186,962 | 190,049 | 254,223 | 270,200 | 304,553
|2019                                                                                                                              | 243,094 | 182,671 | 164,341 | 234,220 | 258,101 | 262,217 | 226,948 | 200,269 | 232,102 | 309,664 | 327,914 | 326,922
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|2020                                                                                                                              | 282,916 | 231,162 | 262,959 | 333,392 | 359,241 | 367,673 | 339,240 | 338,655 | 369,971 | 351,043 | 375,929 | 336,817
|2021                                                                                                                              | 278,584 | 176,321 | 241,066 | 267,102 | 308,280 | 291,516 | 251,745 | 211,993 | 265,177 | 334,074 | 333,084 | 354,333
|2022                                                                                                                              | 219,905 | 149,764 | 174,923 | 239,208 | 254,454 | 233,844 | 199,910 | 186,820 | 232,359 | 307,735 | 322,475 | 279,640
|2023                                                                                                                              | 288,570 | 262,917 | 265,506 | 285,722 | 342,479 | 332,882 | 292,303 | 248,756 | 271,964 | 325,163 | 338,773 | 345,155
|2024                                                                                                                              | 265,231 |         |         |         |         |         |         |         |         |         |         |        
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|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 3/29/2024                                                                                                          
|Next Release Date: 4/30/2024