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|View History: Monthly Download Data (XLS File)                  
|View History: Monthly                                            
|View History: Monthly                                            
|View History:                                                    
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|Iowa Natural Gas Underground Storage Volume  (Million Cubic Feet)
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|Iowa Natural Gas Underground Storage Volume  (Million Cubic Feet)
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|Year                                                                                                                              | Jan     | Feb     | Mar     | Apr     | May     | Jun     | Jul     | Aug     | Sep     | Oct     | Nov     | Dec    
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1990                                                                                                                              | 228,019 | 220,410 | 215,229 | 215,377 | 219,838 | 224,572 | 230,226 | 236,154 | 239,871 | 243,782 | 241,829 | 227,519
|1991                                                                                                                              | 225,964 | 215,495 | 211,852 | 213,588 | 218,084 | 228,720 | 234,297 | 240,868 | 252,335 | 263,855 | 255,740 | 241,570
|1992                                                                                                                              | 221,741 | 209,087 | 205,548 | 208,105 | 217,022 | 225,236 | 236,833 | 247,704 | 258,372 | 267,472 | 258,308 | 237,797
|1993                                                                                                                              | 218,826 | 208,027 | 205,378 | 210,868 | 217,693 | 225,793 | 236,688 | 247,032 | 259,649 | 265,238 | 258,580 | 240,957
|1994                                                                                                                              | 222,694 | 213,205 | 210,208 | 212,114 | 217,678 | 224,185 | 234,433 | 245,426 | 257,120 | 266,215 | 261,645 | 243,875
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|1995                                                                                                                              | 223,356 | 212,480 | 208,011 | 207,340 | 211,295 | 219,417 | 229,558 | 244,448 | 256,135 | 263,260 | 252,590 | 237,557
|1996                                                                                                                              | 220,616 | 211,807 | 205,436 | 203,423 | 205,048 | 212,740 | 225,268 | 238,536 | 251,152 | 262,054 | 256,233 | 237,708
|1997                                                                                                                              | 221,782 | 213,313 | 210,359 | 208,732 | 212,205 | 220,566 | 229,343 | 240,282 | 253,043 | 261,401 | 260,847 | 243,915
|1998                                                                                                                              | 224,995 | 218,555 | 211,863 | 211,515 | 215,115 | 223,520 | 283,626 | 247,163 | 259,312 | 266,420 | 266,488 | 245,942
|1999                                                                                                                              | 225,364 | 213,550 | 208,373 | 208,287 | 212,886 | 219,722 | 230,486 | 241,802 | 254,910 | 265,850 | 264,753 | 243,468
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|2000                                                                                                                              | 222,317 | 210,932 | 205,726 | 204,005 | 208,404 | 214,260 | 225,173 | 236,842 | 249,678 | 263,169 | 252,422 | 229,885
|2001                                                                                                                              | 213,389 | 205,198 | 201,474 | 204,365 | 209,897 | 216,054 | 226,196 | 239,701 | 253,410 | 265,098 | 268,216 | 251,007
|2002                                                                                                                              | 229,385 | 214,370 | 207,249 | 206,886 | 207,587 | 212,568 | 224,757 | 237,234 | 249,797 | 262,731 | 265,928 | 246,736
|2003                                                                                                                              | 224,937 | 211,478 | 206,583 | 206,663 | 210,357 | 215,460 | 226,171 | 239,055 | 253,905 | 267,129 | 264,943 | 248,491
|2004                                                                                                                              | 227,436 | 212,150 | 204,727 | 204,394 | 208,374 | 213,785 | 226,383 | 240,368 | 254,353 | 266,768 | 268,436 | 250,155
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|2005                                                                                                                              | 228,754 | 215,024 | 206,381 | 204,733 | 206,573 | 212,312 | 224,801 | 238,364 | 253,586 | 266,407 | 265,398 | 246,717
|2006                                                                                                                              | 227,460 | 213,779 | 207,203 | 206,139 | 209,701 | 215,638 | 227,013 | 242,050 | 256,891 | 267,861 | 267,910 | 250,287
|2007                                                                                                                              | 227,632 | 213,007 | 206,358 | 207,155 | 211,232 | 215,934 | 226,154 | 239,675 | 256,605 | 271,540 | 268,426 | 247,836
|2008                                                                                                                              | 227,832 | 214,161 | 208,566 | 207,045 | 207,492 | 211,638 | 224,439 | 242,137 | 258,103 | 272,581 | 272,115 | 250,111
|2009                                                                                                                              | 227,625 | 216,193 | 208,745 | 208,310 | 212,523 | 221,002 | 230,146 | 246,950 | 263,795 | 278,589 | 280,400 | 254,971
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|2010                                                                                                                              | 232,844 | 218,626 | 210,906 | 209,775 | 210,682 | 216,311 | 224,925 | 239,949 | 258,816 | 278,368 | 275,435 | 252,934
|2011                                                                                                                              | 230,801 | 218,883 | 211,546 | 210,133 | 211,490 | 215,357 | 223,267 | 237,745 | 259,052 | 279,295 | 277,777 | 257,178
|2012                                                                                                                              | 237,222 | 223,787 | 217,788 | 215,592 | 216,499 | 218,275 | 224,324 | 238,571 | 258,829 | 275,177 | 267,819 | 246,662
|2013                                                                                                                              | 226,872 | 217,183 | 210,939 | 209,512 | 215,593 | 221,664 | 230,749 | 245,317 | 261,998 | 273,823 | 265,935 | 243,588
|2014                                                                                                                              | 224,633 | 214,201 | 208,288 | 207,117 | 214,638 | 222,619 | 231,356 | 248,182 | 264,771 | 276,336 | 266,344 | 251,012
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|2015                                                                                                                              | 236,462 | 225,333 | 218,949 | 218,407 | 223,762 | 230,724 | 233,287 | 246,900 | 263,036 | 277,160 | 272,523 | 255,967
|2016                                                                                                                              | 236,541 | 225,867 | 221,105 | 218,955 | 221,304 | 224,160 | 226,086 | 240,164 | 258,204 | 276,919 | 271,770 | 249,553
|2017                                                                                                                              | 233,982 | 225,930 | 220,765 | 219,477 | 221,056 | 222,973 | 224,669 | 236,474 | 255,920 | 276,002 | 269,762 | 249,224
|2018                                                                                                                              | 229,292 | 219,747 | 213,665 | 212,279 | 215,107 | 216,700 | 218,373 | 233,911 | 253,414 | 273,379 | 264,519 | 246,350
|2019                                                                                                                              | 228,239 | 219,788 | 217,124 | 217,457 | 221,883 | 225,815 | 228,638 | 242,954 | 260,958 | 276,086 | 265,145 | 247,417
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|2020                                                                                                                              | 233,351 | 224,894 | 219,595 | 219,361 | 224,718 | 230,364 | 232,289 | 244,207 | 259,142 | 272,563 | 276,719 | 256,887
|2021                                                                                                                              | 237,125 | 225,117 | 219,028 | 217,894 | 220,708 | 225,186 | 227,272 | 239,168 | 255,650 | 272,103 | 277,906 | 260,773
|2022                                                                                                                              | 239,853 | 227,518 | 220,962 | 219,051 | 219,828 | 222,938 | 225,990 | 237,173 | 254,408 | 272,048 | 277,208 | 257,077
|2023                                                                                                                              | 237,770 | 226,960 | 220,169 | 219,231 | 221,591 | 225,603 | 226,446 | 238,071 | 255,062 | 270,690 | 276,988 | 259,038
|2024                                                                                                                              | 239,250 | 227,040 |         |         |         |         |         |         |         |         |         |        
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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: 4/30/2024                                                                                                          
|Next Release Date: 5/31/2024