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|View History: Annual Download Data (XLS File)                                       
|View History: Annual                                                                 
|View History: Annual                                                                 
|View History:                                                                        
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|Michigan Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet)
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|Michigan 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                                                                                                                            |        |        |        |        |        |        |        |        |        | 1,334 
|1980's                                                                                                                            | 1,551  | 1,252  | 1,200  | 1,353  | 1,193  | 1,064  | 1,242  | 1,571  | 1,434  | 1,443 
|1990's                                                                                                                            | 1,330  | 1,404  | 1,290  | 1,218  | 1,379  | 1,344  | 2,125  | 2,256  | 2,386  | 2,313 
|2000's                                                                                                                            | 2,772  | 3,032  | 3,311  | 3,488  | 3,154  | 2,961  | 3,117  | 3,691  | 3,253  | 2,805 
|2010's                                                                                                                            | 2,975  | 2,549  | 1,781  | 1,839  | 1,873  | 1,415  | 1,301  | 1,509  | 1,513  | 1,261 
|2020's                                                                                                                            | 891    | 1,165  |        |        |        |        |        |        |        |       
|- = 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