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|View History: Monthly Download Data (XLS File)                             
|View History: Monthly                                                       
|View History: Monthly                                                       
|View History:                                                               
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|Michigan Natural Gas in Underground Storage (Base Gas)  (Million Cubic Feet)
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|Michigan Natural Gas in Underground Storage (Base Gas)  (Million Cubic Feet)
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|Year                                                                                                                              | Jan     | Feb     | Mar     | Apr     | May     | Jun     | Jul     | Aug     | Sep     | Oct     | Nov     | Dec    
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1990                                                                                                                              | 395,529 | 395,529 | 395,529 | 395,529 | 395,529 | 395,180 | 396,744 | 396,491 | 396,293 | 396,099 | 395,934 | 395,790
|1991                                                                                                                              | 394,527 | 393,885 | 392,506 | 394,146 | 413,930 | 413,764 | 413,617 | 413,530 | 413,468 | 413,390 | 413,242 | 413,275
|1992                                                                                                                              | 413,430 | 413,426 | 413,356 | 413,302 | 413,258 | 413,224 | 413,182 | 413,226 | 413,225 | 413,194 | 413,136 | 413,069
|1993                                                                                                                              | 413,736 | 413,707 | 410,316 | 411,038 | 415,626 | 420,299 | 420,682 | 420,660 | 420,562 | 420,591 | 420,609 | 420,600
|1994                                                                                                                              | 420,550 | 419,736 | 419,697 | 419,700 | 419,661 | 419,628 | 419,590 | 419,634 | 419,594 | 419,592 | 419,547 | 419,404
|                                                                                                                                 
|1995                                                                                                                              | 419,289 | 419,190 | 419,148 | 419,101 | 419,044 | 419,000 | 419,000 | 421,522 | 421,421 | 421,080 | 419,859 | 420,726
|1996                                                                                                                              | 420,388 | 420,689 | 419,598 | 419,809 | 419,540 | 419,220 | 418,892 | 418,748 | 420,575 | 420,575 | 420,575 | 420,580
|1997                                                                                                                              | 420,041 | 419,764 | 420,041 | 420,377 | 420,377 | 429,152 | 429,143 | 429,348 | 428,847 | 429,034 | 428,932 | 420,157
|1998                                                                                                                              | 420,341 | 420,701 | 420,700 | 420,698 | 420,781 | 418,450 | 420,886 | 420,884 | 420,435 | 420,316 | 420,201 | 419,918
|1999                                                                                                                              | 413,978 | 413,936 | 469,334 | 469,205 | 469,128 | 469,127 | 469,117 | 469,067 | 468,949 | 468,893 | 475,430 | 474,476
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|2000                                                                                                                              | 469,086 | 468,260 | 468,177 | 468,947 | 468,889 | 467,954 | 467,812 | 467,705 | 467,638 | 467,573 | 467,495 | 466,332
|2001                                                                                                                              | 464,039 | 466,379 | 458,004 | 456,668 | 455,680 | 453,281 | 459,250 | 459,226 | 459,221 | 459,221 | 459,219 | 458,967
|2002                                                                                                                              | 459,223 | 459,182 | 459,159 | 459,108 | 459,057 | 459,048 | 459,048 | 459,027 | 445,731 | 445,710 | 445,675 | 445,962
|2003                                                                                                                              | 444,363 | 440,241 | 434,495 | 438,799 | 443,537 | 443,536 | 443,536 | 445,738 | 445,942 | 445,942 | 428,743 | 427,827
|2004                                                                                                                              | 428,702 | 425,452 | 422,792 | 424,219 | 426,755 | 425,517 | 428,342 | 424,242 | 408,457 | 406,640 | 403,640 | 384,641
|                                                                                                                                 
|2005                                                                                                                              | 384,774 | 384,774 | 384,682 | 384,774 | 384,768 | 385,762 | 388,162 | 388,162 | 388,168 | 388,168 | 388,168 | 387,468
|2006                                                                                                                              | 387,469 | 387,469 | 387,469 | 387,469 | 387,469 | 399,102 | 399,102 | 399,102 | 399,102 | 399,102 | 399,102 | 396,874
|2007                                                                                                                              | 396,883 | 396,883 | 396,883 | 394,908 | 394,908 | 394,908 | 394,908 | 396,588 | 396,813 | 397,023 | 397,174 | 395,305
|2008                                                                                                                              | 393,568 | 393,572 | 394,658 | 395,528 | 397,570 | 398,120 | 397,816 | 397,598 | 397,598 | 397,598 | 397,598 | 398,304
|2009                                                                                                                              | 398,259 | 398,257 | 398,257 | 398,257 | 398,257 | 403,042 | 403,042 | 403,042 | 403,171 | 403,171 | 403,171 | 401,154
|                                                                                                                                 
|2010                                                                                                                              | 401,588 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114 | 402,114
|2011                                                                                                                              | 402,117 | 402,117 | 402,050 | 402,117 | 402,117 | 402,117 | 402,117 | 402,117 | 402,117 | 402,117 | 402,117 | 402,117
|2012                                                                                                                              | 402,120 | 402,120 | 402,120 | 402,381 | 402,381 | 402,381 | 402,381 | 402,381 | 402,381 | 402,381 | 402,381 | 402,382
|2013                                                                                                                              | 402,382 | 402,382 | 401,746 | 402,745 | 402,745 | 402,745 | 402,745 | 402,745 | 402,745 | 402,745 | 402,745 | 402,745
|2014                                                                                                                              | 402,745 | 402,080 | 395,127 | 400,565 | 395,176 | 395,176 | 395,176 | 395,176 | 395,027 | 395,027 | 395,027 | 395,027
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|2015                                                                                                                              | 395,027 | 394,730 | 394,117 | 394,117 | 394,117 | 394,117 | 394,117 | 386,527 | 387,027 | 385,038 | 385,038 | 385,038
|2016                                                                                                                              | 385,032 | 385,032 | 385,032 | 385,032 | 385,032 | 385,032 | 385,032 | 385,032 | 385,032 | 386,922 | 386,922 | 386,922
|2017                                                                                                                              | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921
|2018                                                                                                                              | 386,921 | 386,921 | 386,921 | 384,771 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921 | 386,921
|2019                                                                                                                              | 386,911 | 386,911 | 384,925 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911
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|2020                                                                                                                              | 386,911 | 386,911 | 386,679 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911
|2021                                                                                                                              | 386,911 | 386,443 | 385,929 | 386,907 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911 | 386,911
|2022                                                                                                                              | 386,911 | 385,829 | 384,559 | 388,578 | 389,676 | 390,327 | 390,327 | 390,327 | 390,327 | 390,327 | 390,327 | 390,327
|2023                                                                                                                              | 390,327 | 390,327 | 388,852 | 389,789 | 389,905 | 389,979 | 389,848 | 389,717 | 389,549 | 389,703 | 389,703 | 389,577
|2024                                                                                                                              | 389,142 | 389,136 | 389,069 | 389,006 | 388,992 |         |         |         |         |         |         |        
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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: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024