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|View History: Annual Download Data (XLS File)                                           
|View History: Annual                                                                     
|View History: Annual                                                                     
|View History:                                                                            
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|Colorado Natural Gas, Wet After Lease Separation Reserves Extensions (Billion Cubic Feet)
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|Colorado Natural Gas, Wet After Lease Separation Reserves Extensions (Billion Cubic Feet)
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|Decade                                                                                                                            | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9
|--------------------------------------------------------------------------------------------------------------------------------- | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------
|1970's                                                                                                                            |        |        |        |        |        |        |        |        |        | 272   
|1980's                                                                                                                            | 223    | 274    | 183    | 67     | 121    | 117    | 115    | 76     | 663    | 531   
|1990's                                                                                                                            | 574    | 294    | 423    | 483    | 279    | 138    | 112    | 114    | 366    | 443   
|2000's                                                                                                                            | 285    | 2,191  | 1,263  | 1,250  | 1,053  | 1,851  | 2,042  | 2,893  | 2,379  | 3,495 
|2010's                                                                                                                            | 2,986  | 2,123  | 1,639  | 1,422  | 1,129  | 932    | --     | --     | --     | --    
|2020's                                                                                                                            | --     | --     |        |        |        |        |        |        |        |       
|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 12/30/2022                                                                                                         
|Next Release Date: 12/29/2023