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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 Proved Reserves (Billion Cubic Feet)
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|Colorado Natural Gas, Wet After Lease Separation Proved Reserves (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                                                                                                                            |        |        |        |        |        |        |        |        |        | 2,838 
|1980's                                                                                                                            | 3,170  | 3,228  | 3,551  | 3,373  | 3,140  | 3,095  | 3,198  | 3,131  | 3,749  | 4,526 
|1990's                                                                                                                            | 4,759  | 6,011  | 6,463  | 6,979  | 7,036  | 7,592  | 8,064  | 7,160  | 8,208  | 9,372 
|2000's                                                                                                                            | 10,837 | 12,949 | 14,348 | 15,893 | 15,249 | 17,122 | 17,682 | 22,480 | 24,169 | 24,081
|2010's                                                                                                                            | 25,372 | 26,151 | 21,674 | 23,533 | 21,992 | 18,274 | 19,086 | 28,727 | 26,132 | 24,115
|2020's                                                                                                                            | 20,412 | 22,071 |        |        |        |        |        |        |        |       
|- = 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