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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 - Total   (Million Cubic Feet)
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|U.S. Natural Gas Salt Underground Storage - Total   (Million Cubic Feet)
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|Year                                                                                                                              | Jan     | Feb     | Mar     | Apr     | May     | Jun     | Jul     | Aug     | Sep     | Oct     | Nov     | Dec    
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1994                                                                                                                              | 84,650  | 74,817  | 80,243  | 89,252  | 99,008  | 97,724  | 105,227 | 105,831 | 112,197 | 115,062 | 116,865 | 113,229
|                                                                                                                                 
|1995                                                                                                                              | 127,040 | 118,542 | 112,576 | 120,337 | 127,595 | 132,749 | 130,338 | 117,338 | 134,950 | 142,711 | 138,775 | 131,368
|1996                                                                                                                              | 121,867 | 110,621 | 100,667 | 120,036 | 125,710 | 134,937 | 130,796 | 135,916 | 145,249 | 148,410 | 151,210 | 149,245
|1997                                                                                                                              | 122,426 | 108,624 | 120,923 | 123,380 | 138,068 | 145,452 | 131,065 | 131,980 | 142,780 | 159,497 | 161,999 | 149,833
|1998                                                                                                                              | 136,305 | 135,263 | 131,302 | 148,739 | 151,004 | 149,079 | 156,601 | 157,940 | 150,855 | 183,160 | 186,058 | 171,088
|1999                                                                                                                              | 149,354 | 144,176 | 134,794 | 144,963 | 161,229 | 167,124 | 160,812 | 168,386 | 178,681 | 182,040 | 183,512 | 168,536
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|2000                                                                                                                              | 133,029 | 133,927 | 137,804 | 143,021 | 147,296 | 160,258 | 168,404 | 161,476 | 172,167 | 178,375 | 181,822 | 142,342
|2001                                                                                                                              | 143,950 | 136,051 | 121,989 | 139,943 | 155,771 | 155,303 | 159,517 | 156,770 | 171,132 | 179,695 | 200,402 | 191,459
|2002                                                                                                                              | 169,900 | 151,257 | 142,190 | 153,929 | 170,572 | 180,770 | 170,823 | 175,690 | 183,597 | 189,978 | 181,007 | 176,932
|2003                                                                                                                              | 132,849 | 113,531 | 132,042 | 146,585 | 161,600 | 172,162 | 173,101 | 176,784 | 198,218 | 205,160 | 201,345 | 201,126
|2004                                                                                                                              | 168,359 | 142,767 | 152,841 | 161,338 | 170,273 | 182,808 | 189,228 | 184,614 | 176,116 | 197,710 | 198,754 | 170,180
|                                                                                                                                 
|2005                                                                                                                              | 152,324 | 159,480 | 147,770 | 163,316 | 171,305 | 172,155 | 163,227 | 155,359 | 159,390 | 188,032 | 210,047 | 200,507
|2006                                                                                                                              | 207,964 | 177,253 | 177,209 | 195,367 | 205,989 | 206,887 | 192,292 | 188,470 | 213,235 | 218,186 | 223,891 | 221,703
|2007                                                                                                                              | 186,568 | 150,805 | 169,625 | 178,209 | 199,558 | 205,367 | 212,836 | 192,176 | 204,232 | 226,195 | 214,714 | 203,473
|2008                                                                                                                              | 157,993 | 163,601 | 170,778 | 186,028 | 205,819 | 219,809 | 220,832 | 218,855 | 197,605 | 224,063 | 242,780 | 240,305
|2009                                                                                                                              | 193,642 | 186,195 | 212,130 | 248,339 | 282,494 | 288,463 | 305,065 | 310,899 | 331,322 | 340,504 | 355,891 | 301,923
|                                                                                                                                 
|2010                                                                                                                              | 228,618 | 198,012 | 235,118 | 277,600 | 305,990 | 309,501 | 300,344 | 291,176 | 333,597 | 383,598 | 406,634 | 355,430
|2011                                                                                                                              | 311,127 | 261,682 | 288,414 | 312,035 | 351,619 | 358,003 | 328,273 | 311,519 | 346,900 | 424,415 | 458,577 | 452,003
|2012                                                                                                                              | 424,165 | 391,889 | 441,394 | 434,465 | 436,711 | 436,721 | 415,024 | 400,946 | 437,722 | 491,075 | 496,333 | 470,732
|2013                                                                                                                              | 419,886 | 368,390 | 343,193 | 376,969 | 423,098 | 434,419 | 438,330 | 429,109 | 462,656 | 500,978 | 484,451 | 441,004
|2014                                                                                                                              | 312,468 | 263,422 | 236,286 | 287,555 | 347,354 | 381,232 | 399,293 | 406,677 | 450,460 | 510,558 | 515,041 | 520,253
|                                                                                                                                 
|2015                                                                                                                              | 438,797 | 313,998 | 325,412 | 407,371 | 471,173 | 487,454 | 487,209 | 491,177 | 522,733 | 565,879 | 579,437 | 577,260
|2016                                                                                                                              | 501,087 | 484,609 | 512,756 | 549,878 | 559,669 | 540,725 | 511,175 | 474,219 | 488,786 | 577,399 | 597,670 | 543,737
|2017                                                                                                                              | 532,541 | 522,221 | 487,444 | 523,232 | 539,350 | 535,280 | 501,805 | 476,534 | 514,957 | 547,906 | 575,600 | 493,227
|2018                                                                                                                              | 387,382 | 391,758 | 386,326 | 396,671 | 443,761 | 450,557 | 409,190 | 383,349 | 385,989 | 449,282 | 465,372 | 500,360
|2019                                                                                                                              | 439,033 | 377,484 | 357,467 | 430,990 | 456,066 | 460,877 | 425,428 | 399,311 | 431,088 | 508,513 | 526,692 | 525,828
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|2020                                                                                                                              | 482,236 | 430,267 | 463,377 | 535,394 | 561,673 | 570,160 | 541,712 | 541,134 | 571,683 | 552,503 | 577,229 | 538,273
|2021                                                                                                                              | 480,288 | 373,782 | 438,662 | 463,952 | 505,258 | 488,462 | 448,678 | 409,615 | 463,786 | 532,919 | 531,947 | 551,869
|2022                                                                                                                              | 418,123 | 346,478 | 372,478 | 437,012 | 451,607 | 430,239 | 398,277 | 386,039 | 429,742 | 505,090 | 519,522 | 480,495
|2023                                                                                                                              | 490,628 | 465,208 | 467,709 | 488,044 | 544,673 | 534,968 | 495,408 | 450,577 | 473,409 | 527,286 | 541,376 | 551,715
|2024                                                                                                                              | 472,034 |         |         |         |         |         |         |         |         |         |         |        
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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