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|View History: Monthly Download Data (XLS File)                                                                             
|View History: Monthly                                                                                                       
|View History: Monthly                                                                                                       
|View History:                                                                                                               
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|Midwest Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Midwest Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Year                                                                                                                              | Jan    | Feb    | Mar    | Apr    | May    | Jun    | Jul    | Aug    | Sep    | Oct    | Nov    | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | -----
|2015                                                                                                                              | 37.50  | 45.20  | 77.20  | 72.70  | 38.10  | 19.90  | 9.40   | 5.50   | 4.00   | 4.60   | 12.20  | 15.70
|2016                                                                                                                              | 23.70  | 75.90  | 115.20 | 82.90  | 53.00  | 34.90  | 21.80  | 10.60  | 7.10   | 3.50   | 1.90   | -8.40
|2017                                                                                                                              | -8.70  | -3.20  | -12.20 | -7.40  | -9.30  | -8.20  | -8.40  | -5.70  | -4.70  | -2.90  | -5.20  | -8.50
|2018                                                                                                                              | -20.70 | -35.30 | -45.20 | -55.20 | -43.60 | -34.60 | -25.20 | -18.80 | -14.80 | -11.70 | -13.90 | -6.20
|2019                                                                                                                              | -5.80  | -11.50 | -7.50  | 29.90  | 27.90  | 26.30  | 21.90  | 18.40  | 17.00  | 13.50  | 13.50  | 13.90
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|2020                                                                                                                              | 37.50  | 60.50  | 94.90  | 71.50  | 45.80  | 28.90  | 18.80  | 12.00  | 6.30   | 0.90   | 7.60   | 3.70 
|2021                                                                                                                              | -3.40  | -16.20 | -16.10 | -16.30 | -17.00 | -15.70 | -12.90 | -11.50 | -8.30  | -3.40  | -7.70  | -3.40
|2022                                                                                                                              | -17.00 | -17.90 | -25.10 | -24.60 | -16.40 | -11.50 | -10.00 | -7.30  | -5.10  | -2.00  | 0.70   | -6.20
|2023                                                                                                                              | 14.80  | 39.20  | 40.70  | 46.90  | 34.00  | 25.80  | 20.30  | 13.50  | 8.30   | 4.40   | 4.60   | 14.30
|2024                                                                                                                              | 4.40   | 10.40  | 21.80  | 19.30  | 15.20  |        |        |        |        |        |        |      
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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