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|View History: Annual Download Data (XLS File)                                  
|View History: Annual                                                            
|View History: Annual                                                            
|View History:                                                                   
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|Lower 48 States Dry Natural Gas Reserves Revision Increases (Billion Cubic Feet)
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|Lower 48 States Dry Natural Gas Reserves Revision Increases (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                                                                                                                            |        |        |        |        |        |        |        | 13,689 | 13,912 | 15,691
|1980's                                                                                                                            | 15,881 | 16,258 | 17,570 | 17,296 | 16,934 | 18,252 | 21,084 | 16,809 | 22,571 | 26,446
|1990's                                                                                                                            | 17,916 | 19,095 | 17,878 | 16,918 | 21,121 | 19,903 | 16,930 | 19,849 | 27,834 | 38,590
|2000's                                                                                                                            | 22,888 | 18,125 | 20,114 | 19,485 | 26,261 | 22,060 | 17,980 | 30,027 | 30,490 | 29,548
|2010's                                                                                                                            | 39,899 | 52,673 | 39,831 | 47,021 | 51,897 | 36,841 | 52,668 | 65,893 | 36,776 | 48,553
|2020's                                                                                                                            | 32,269 | 69,078 |        |        |        |        |        |        |        |       
|- = 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