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|View History: Annual Download Data (XLS File)                               
|View History: Annual                                                         
|View History: Annual                                                         
|View History:                                                                
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|Pennsylvania Dry Natural Gas Reserves Revision Decreases (Billion Cubic Feet)
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|Pennsylvania Dry Natural Gas Reserves Revision Decreases (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                                                                                                                            |        |        |        |        |        |        |        | 33     | 37     | 156   
|1980's                                                                                                                            | 24     | 95     | 56     | 195    | 75     | 147    | 242    | 195    | 88     | 144   
|1990's                                                                                                                            | 206    | 102    | 155    | 73     | 117    | 65     | 103    | 381    | 114    | 595   
|2000's                                                                                                                            | 184    | 219    | 151    | 263    | 567    | 154    | 224    | 418    | 502    | 502   
|2010's                                                                                                                            | 1,938  | 4,872  | 6,393  | 7,128  | 7,453  | 23,233 | 5,803  | 2,920  | 14,593 | 8,920 
|2020's                                                                                                                            | 13,569 | 4,712  |        |        |        |        |        |        |        |       
|- = 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