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|View History:  Monthly  Annual Download Data (XLS File)      
|View History:  Monthly  Annual                                
|View History:  Monthly  Annual                                
|View History:                                                 
|                                                              
|Illinois Natural Gas Marketed Production  (Million Cubic Feet)
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|Illinois Natural Gas Marketed Production  (Million Cubic Feet)
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|Year                                                                                                                              | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
|--------------------------------------------------------------------------------------------------------------------------------- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|1991                                                                                                                              | 40  | 37  | 39  | 38  | 37  | 37  | 37  | 36  | 36  | 39  | 39  | 41 
|1992                                                                                                                              | 30  | 27  | 29  | 28  | 28  | 27  | 27  | 27  | 27  | 29  | 29  | 30 
|1993                                                                                                                              | 30  | 28  | 28  | 26  | 27  | 27  | 26  | 27  | 27  | 28  | 26  | 29 
|1994                                                                                                                              | 29  | 28  | 28  | 26  | 26  | 26  | 26  | 27  | 26  | 27  | 25  | 28 
|                                                                                                                                 
|1995                                                                                                                              | 30  | 28  | 28  | 26  | 27  | 27  | 26  | 27  | 27  | 28  | 26  | 29 
|1996                                                                                                                              | 29  | 28  | 28  | 26  | 26  | 26  | 21  | 22  | 21  | 22  | 21  | 23 
|1997                                                                                                                              | 22  | 21  | 21  | 20  | 20  | 20  | 16  | 17  | 17  | 17  | 16  | 18 
|1998                                                                                                                              | 20  | 19  | 19  | 18  | 18  | 18  | 15  | 15  | 15  | 16  | 14  | 16 
|1999                                                                                                                              | 19  | 18  | 18  | 17  | 17  | 17  | 14  | 14  | 14  | 15  | 14  | 15 
|                                                                                                                                 
|2000                                                                                                                              | 18  | 18  | 18  | 16  | 17  | 17  | 13  | 14  | 14  | 14  | 13  | 15 
|2001                                                                                                                              | 18  | 17  | 17  | 16  | 16  | 16  | 13  | 13  | 13  | 14  | 13  | 14 
|2002                                                                                                                              | 17  | 17  | 17  | 16  | 16  | 16  | 13  | 13  | 13  | 13  | 12  | 14 
|2003                                                                                                                              | 17  | 16  | 16  | 15  | 15  | 15  | 12  | 13  | 13  | 13  | 12  | 13 
|2004                                                                                                                              | 17  | 16  | 16  | 15  | 15  | 15  | 12  | 12  | 12  | 13  | 12  | 13 
|                                                                                                                                 
|2005                                                                                                                              | 16  | 15  | 15  | 14  | 14  | 14  | 12  | 12  | 12  | 12  | 11  | 13 
|2006                                                                                                                              | 17  | 16  | 16  | 15  | 15  | 15  | 12  | 13  | 13  | 13  | 12  | 13 
|2007                                                                                                                              | 138 | 132 | 132 | 122 | 124 | 124 | 100 | 103 | 103 | 107 | 99  | 110
|2008                                                                                                                              | 118 | 113 | 113 | 105 | 106 | 106 | 86  | 88  | 88  | 91  | 84  | 94 
|2009                                                                                                                              | 143 | 136 | 136 | 127 | 129 | 129 | 104 | 107 | 106 | 111 | 102 | 114
|                                                                                                                                 
|2010                                                                                                                              | 175 | 161 | 168 | 169 | 169 | 126 | 94  | 79  | 98  | 111 | 157 | 194
|2011                                                                                                                              | 184 | 156 | 193 | 180 | 182 | 156 | 144 | 173 | 165 | 180 | 204 | 205
|2012                                                                                                                              | 184 | 156 | 193 | 181 | 183 | 156 | 144 | 173 | 165 | 180 | 205 | 205
|2013                                                                                                                              | 532 | 203 | 267 | 204 | 160 | 155 | 157 | 155 | 186 | 158 | 165 | 546
|2014                                                                                                                              | 164 | 148 | 164 | 159 | 164 | 159 | 164 | 164 | 159 | 164 | 159 | 164
|                                                                                                                                 
|2015                                                                                                                              | 182 | 147 | 161 | 144 | 158 | 158 | 182 | 191 | 191 | 181 | 191 | 194
|2016                                                                                                                              | 175 | 175 | 188 | 188 | 191 | 192 | 184 | 188 | 178 | 176 | 175 | 173
|2017                                                                                                                              | 173 | 168 | 182 | 174 | 182 | 176 | 179 | 184 | 160 | 173 | 183 | 197
|2018                                                                                                                              | 191 | 182 | 190 | 194 | 189 | 229 | 206 | 212 | 249 | 215 | 203 | 204
|2019                                                                                                                              | 212 | 176 | 176 | 195 | 189 | 194 | 189 | 182 | 170 | 142 | 151 | 175
|                                                                                                                                 
|2020                                                                                                                              | 172 | 164 | 176 | 164 | 138 | 169 | 174 | 161 | 102 | 136 | 141 | 143
|2021                                                                                                                              | 149 | 120 | 140 | 135 | 133 | 132 | 127 | 136 | 126 | 136 | 144 | 158
|2022                                                                                                                              | 161 | 168 | 171 | 138 | 143 | 159 | 112 | 174 | 183 | 130 | 177 | 288
|2023                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|2024                                                                                                                              | NA  | NA  | NA  |     |     |     |     |     |     |     |     |    
|                                                                                                                                 
|- = 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