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|View History:  Monthly  Annual Download Data (XLS File)                
|View History:  Monthly  Annual                                          
|View History:  Monthly  Annual                                          
|View History:                                                           
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|Illinois Natural Gas Industrial Price  (Dollars per Thousand Cubic Feet)
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|Illinois Natural Gas Industrial Price  (Dollars per Thousand Cubic Feet)
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|Year                                                                                                                              | Jan   | Feb   | Mar   | Apr   | May   | Jun   | Jul   | Aug   | Sep   | Oct   | Nov   | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | -----
|2001                                                                                                                              | 10.56 | 9.55  | 8.26  | 7.06  | 6.31  | 6.24  | 4.99  | 5.18  | 4.53  | 3.70  | 3.54  | 4.34 
|2002                                                                                                                              | 4.00  | 4.45  | 4.24  | 4.64  | 5.77  | 5.43  | 4.97  | 5.13  | 4.95  | 5.15  | 5.77  | 5.79 
|2003                                                                                                                              | 6.28  | 6.86  | 8.79  | 7.38  | 6.63  | 8.25  | 8.12  | 7.27  | 7.19  | 6.90  | 6.69  | 7.45 
|2004                                                                                                                              | 7.69  | 7.94  | 7.40  | 8.13  | 8.03  | 8.55  | 8.07  | 8.44  | 8.32  | 7.80  | 8.45  | 8.76 
|                                                                                                                                 
|2005                                                                                                                              | 8.47  | 7.86  | 8.25  | 9.39  | 9.65  | 9.40  | 8.39  | 9.08  | 10.25 | 12.31 | 12.71 | 13.07
|2006                                                                                                                              | 12.45 | 11.47 | 9.72  | 8.93  | 8.21  | 8.22  | 8.16  | 7.81  | 8.01  | 7.34  | 7.43  | 8.81 
|2007                                                                                                                              | 8.65  | 8.82  | 9.07  | 9.21  | 9.24  | 9.32  | 9.82  | 9.60  | 8.86  | 8.47  | 9.02  | 8.81 
|2008                                                                                                                              | 8.81  | 9.38  | 10.10 | 10.92 | 11.86 | 12.68 | 14.55 | 13.60 | 11.92 | 10.78 | 10.43 | 9.49 
|2009                                                                                                                              | 8.98  | 8.79  | 7.64  | 6.67  | 6.03  | 6.49  | 6.86  | 6.30  | 5.63  | 5.93  | 6.36  | 6.18 
|                                                                                                                                 
|2010                                                                                                                              | 7.24  | 7.65  | 7.60  | 7.00  | 6.35  | 7.42  | 7.98  | 7.84  | 6.82  | 6.58  | 6.02  | 6.54 
|2011                                                                                                                              | 6.38  | 6.44  | 7.05  | 6.73  | 7.07  | 8.03  | 8.80  | 8.54  | 8.00  | 7.04  | 6.56  | 6.33 
|2012                                                                                                                              | 5.88  | 5.26  | 5.81  | 5.22  | 5.46  | 5.88  | 5.73  | 6.58  | 5.68  | 5.21  | 5.44  | 6.05 
|2013                                                                                                                              | 5.72  | 5.55  | 5.85  | 6.40  | 7.28  | 7.35  | 7.50  | 7.95  | 6.15  | 6.04  | 5.61  | 5.65 
|2014                                                                                                                              | 6.33  | 7.00  | 9.26  | 11.32 | 10.08 | 9.49  | 10.61 | 11.94 | 7.72  | 6.32  | 6.11  | 6.64 
|                                                                                                                                 
|2015                                                                                                                              | 6.02  | 5.13  | 5.74  | 5.75  | 5.66  | 5.94  | 6.06  | 5.96  | 6.19  | 5.39  | 4.59  | 4.65 
|2016                                                                                                                              | 4.29  | 4.54  | 4.74  | 4.94  | 4.45  | 5.49  | 6.99  | 7.16  | 6.07  | 5.72  | 5.83  | 5.22 
|2017                                                                                                                              | 6.12  | 6.15  | 5.87  | 6.31  | 6.78  | 6.70  | 7.16  | 6.43  | 5.72  | 5.10  | 4.99  | 4.86 
|2018                                                                                                                              | 5.30  | 6.07  | 5.16  | 5.00  | 5.51  | 6.12  | 7.17  | 7.42  | 6.50  | 5.75  | 5.07  | 5.50 
|2019                                                                                                                              | 5.32  | 5.26  | 5.97  | 6.05  | 4.35  | 6.99  | 9.52  | 5.84  | 5.68  | 4.95  | 4.05  | 4.11 
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|2020                                                                                                                              | 4.37  | 4.33  | 4.19  | 4.84  | 4.46  | 2.59  | 3.24  | 3.61  | 4.04  | 5.25  | 4.89  | 4.75 
|2021                                                                                                                              | 5.02  | 4.64  | 7.05  | 8.57  | 7.81  | 10.02 | 9.37  | 12.38 | 11.30 | 9.86  | 8.74  | 11.08
|2022                                                                                                                              | 7.92  | 7.13  | 7.73  | 7.59  | 8.95  | 13.45 | 14.63 | 15.97 | 15.00 | 13.69 | 12.45 | 9.94 
|2023                                                                                                                              | 9.52  | 7.94  | 6.47  | 6.59  | 6.77  | 8.57  | 7.62  | 8.38  | 9.68  | 6.88  | 5.70  | 6.26 
|2024                                                                                                                              | 5.04  | NA    | 6.61  | 6.68  | 7.30  |       |       |       |       |       |       |      
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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