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|View History: Annual Download Data (XLS File)                                           
|View History: Annual                                                                     
|View History: Annual                                                                     
|View History:                                                                            
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|Alabama Natural Gas, Wet After Lease Separation Reserves Adjustments (Billion Cubic Feet)
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|Alabama Natural Gas, Wet After Lease Separation Reserves Adjustments (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                                                                                                                            |        |        |        |        |        |        |        |        |        | 5     
|1980's                                                                                                                            | 38     | 34     |        |        |        |        |        |        |        |       
|1990's                                                                                                                            | 202    | 598    | 174    | -634   | 28     | -49    | -40    | -48    | 4      | 31    
|2000's                                                                                                                            | -23    | -39    | 66     | -42    | 31     | -25    | -2     | 1      | -7     | 47    
|2010's                                                                                                                            | 60     | -45    | 104    | -260   | 518    | 304    | -110   | 136    | -85    | -30   
|2020's                                                                                                                            | 184    | -66    |        |        |        |        |        |        |        |       
|- = 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