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|View History: Annual Download Data (XLS File)                                           
|View History: Annual                                                                     
|View History: Annual                                                                     
|View History:                                                                            
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|Pennsylvania Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet)
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|Pennsylvania 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                                                                                                                            |        |         |        |        |        |        |        |        |         | 1,516  
|1980's                                                                                                                            | 951    | 1,265   | 1,430  | 1,882  | 1,576  | 1,618  | 1,562  | 1,650  | 2,074   | 1,644  
|1990's                                                                                                                            | 1,722  | 1,631   | 1,533  | 1,722  | 1,806  | 1,488  | 1,702  | 1,861  | 1,848   | 1,780  
|2000's                                                                                                                            | 1,740  | 1,782   | 2,225  | 2,497  | 2,371  | 2,793  | 3,064  | 3,377  | 3,594   | 7,018  
|2010's                                                                                                                            | 14,068 | 26,719  | 36,543 | 50,078 | 60,443 | 56,524 | 62,656 | 90,788 | 104,943 | 107,392
|2020's                                                                                                                            | 97,802 | 106,963 |        |        |        |        |        |        |         |        
|- = 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