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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 Price of Natural Gas Delivered to Residential Consumers (Dollars per Thousand Cubic Feet)
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|Illinois Price of Natural Gas Delivered to Residential Consumers (Dollars per Thousand Cubic Feet)
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|Year                                                                                                                              | Jan   | Feb   | Mar   | Apr   | May   | Jun   | Jul   | Aug   | Sep   | Oct   | Nov   | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | -----
|1989                                                                                                                              | 4.70  | 4.96  | 5.08  | 4.99  | 5.11  | 5.60  | 5.85  | 6.43  | 5.81  | 5.00  | 4.56  | 4.54 
|                                                                                                                                 
|1990                                                                                                                              | 4.79  | 5.30  | 5.02  | 4.92  | 5.22  | 5.84  | 6.21  | 6.20  | 5.71  | 4.93  | 4.73  | 4.84 
|1991                                                                                                                              | 4.94  | 4.98  | 4.72  | 5.10  | 5.67  | 6.31  | 6.54  | 6.54  | 5.50  | 4.90  | 4.48  | 4.51 
|1992                                                                                                                              | 4.66  | 4.76  | 4.33  | 4.68  | 5.52  | 6.45  | 6.91  | 6.87  | 6.37  | 5.60  | 5.42  | 5.14 
|1993                                                                                                                              | 5.08  | 5.02  | 4.88  | 5.63  | 6.98  | 7.64  | 7.88  | 8.26  | 7.16  | 6.12  | 5.36  | 5.21 
|1994                                                                                                                              | 5.11  | 5.26  | 5.66  | 6.23  | 6.69  | 7.47  | 7.54  | 7.70  | 7.08  | 5.56  | 4.66  | 4.80 
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|1995                                                                                                                              | 4.53  | 4.64  | 4.44  | 4.60  | 5.72  | 6.57  | 6.05  | 6.97  | 6.07  | 4.82  | 4.10  | 4.18 
|1996                                                                                                                              | 4.24  | 4.55  | 4.91  | 5.51  | 6.76  | 8.21  | 8.43  | 9.26  | 8.14  | 5.93  | 5.05  | 5.13 
|1997                                                                                                                              | 6.15  | 6.50  | 5.28  | 5.10  | 5.43  | 7.94  | 7.84  | 7.88  | 8.01  | 6.05  | 5.65  | 5.38 
|1998                                                                                                                              | 4.88  | 4.92  | 4.95  | 5.81  | 7.96  | 8.11  | 8.71  | 8.18  | 8.08  | 5.98  | 5.02  | 4.77 
|1999                                                                                                                              | 4.43  | 4.59  | 4.60  | 5.24  | 7.62  | 8.07  | 8.80  | 9.41  | 8.44  | 6.87  | 6.27  | 5.36 
|                                                                                                                                 
|2000                                                                                                                              | 5.11  | 5.31  | 5.70  | 6.22  | 8.58  | 9.85  | 11.16 | 10.81 | 10.53 | 10.12 | 8.70  | 8.74 
|2001                                                                                                                              | 11.87 | 11.34 | 9.63  | 9.29  | 10.36 | 10.34 | 9.42  | 9.40  | 7.64  | 5.25  | 5.45  | 5.10 
|2002                                                                                                                              | 5.13  | 5.08  | 5.12  | 5.70  | 8.00  | 10.14 | 10.41 | 10.21 | 9.65  | 7.50  | 7.22  | 6.94 
|2003                                                                                                                              | 7.09  | 7.38  | 10.20 | 9.65  | 10.77 | 12.22 | 12.83 | 12.17 | 11.21 | 9.02  | 8.42  | 7.91 
|2004                                                                                                                              | 8.58  | 8.35  | 8.35  | 9.42  | 11.09 | 12.50 | 13.54 | 12.84 | 12.64 | 9.99  | 10.15 | 9.46 
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|2005                                                                                                                              | 9.50  | 9.33  | 9.06  | 11.37 | 12.25 | 13.42 | 13.94 | 14.67 | 16.67 | 15.62 | 14.74 | 13.62
|2006                                                                                                                              | 13.64 | 12.34 | 10.60 | 10.08 | 10.77 | 11.87 | 12.24 | 12.65 | 12.35 | 9.80  | 9.08  | 9.71 
|2007                                                                                                                              | 9.84  | 9.76  | 10.41 | 11.52 | 12.71 | 15.14 | 15.45 | 15.02 | 14.34 | 12.39 | 10.71 | 9.81 
|2008                                                                                                                              | 9.65  | 10.37 | 11.63 | 12.92 | 15.57 | 18.45 | 22.09 | 21.80 | 18.62 | 14.49 | 12.76 | 10.63
|2009                                                                                                                              | 9.39  | 9.11  | 8.16  | 7.43  | 9.75  | 11.78 | 14.07 | 14.37 | 13.16 | 9.01  | 8.59  | 7.40 
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|2010                                                                                                                              | 8.26  | 8.97  | 9.32  | 9.87  | 11.36 | 14.13 | 16.62 | 16.73 | 15.76 | 12.07 | 8.84  | 7.36 
|2011                                                                                                                              | 7.43  | 7.60  | 8.01  | 8.61  | 9.93  | 12.77 | 16.44 | 16.49 | 14.99 | 11.45 | 8.98  | 7.91 
|2012                                                                                                                              | 7.09  | 6.67  | 8.25  | 7.62  | 11.49 | 12.67 | 15.31 | 15.68 | 13.15 | 9.12  | 7.83  | 7.56 
|2013                                                                                                                              | 7.00  | 6.93  | 7.31  | 8.93  | 12.52 | 14.57 | 15.62 | 15.52 | 14.29 | 9.65  | 7.64  | 7.03 
|2014                                                                                                                              | 7.34  | 8.09  | 10.96 | 13.40 | 14.33 | 17.26 | 17.93 | 18.07 | 14.35 | 9.91  | 7.76  | 8.22 
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|2015                                                                                                                              | 7.30  | 6.46  | 7.45  | 8.42  | 11.47 | 13.63 | 15.14 | 16.41 | 15.39 | 9.70  | 7.13  | 6.30 
|2016                                                                                                                              | 5.83  | 6.30  | 7.08  | 7.53  | 10.48 | 12.62 | 16.49 | 17.33 | 16.72 | 12.16 | 8.71  | 6.74 
|2017                                                                                                                              | 7.58  | 8.40  | 7.95  | 10.22 | 11.11 | 15.32 | 16.91 | 17.86 | 16.81 | 10.49 | 7.47  | 6.81 
|2018                                                                                                                              | 6.65  | 6.89  | 7.23  | 7.55  | 12.58 | 15.14 | 18.94 | 19.05 | 17.43 | 9.82  | 6.91  | 7.29 
|2019                                                                                                                              | 6.84  | 7.17  | 7.09  | 8.46  | 10.34 | 14.85 | 18.49 | 18.91 | 17.82 | 9.37  | 6.35  | 6.60 
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|2020                                                                                                                              | 6.36  | 6.25  | 6.99  | 7.50  | 9.19  | 12.66 | 18.98 | 19.54 | 16.60 | 8.86  | 7.99  | 6.80 
|2021                                                                                                                              | 6.60  | 6.52  | 8.50  | 11.37 | 13.15 | 21.10 | 22.12 | 23.18 | 22.05 | 17.36 | 11.80 | 12.04
|2022                                                                                                                              | 10.20 | 10.04 | 11.78 | 12.55 | 19.13 | 25.68 | 31.73 | 31.29 | 27.96 | 20.71 | 16.29 | 12.23
|2023                                                                                                                              | 11.16 | 10.69 | 9.16  | 10.51 | 13.87 | 19.06 | 22.57 | 24.86 | 22.70 | 14.02 | 9.48  | 9.58 
|2024                                                                                                                              | 6.54  | 10.55 | 10.64 |       |       |       |       |       |       |       |       |      
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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: 5/31/2024                                                                                                          
|Next Release Date: 6/28/2024