Rendering

Component: (Network and Table)
Network
2402403 - Disclosure - Asset Retirement Obligations (Details)
(http://www.nationalfuelgas.com/role/AssetRetirementObligationsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000070145 (http://www.sec.gov/CIK)
Asset Retirement Obligation [Abstract]Period [Axis]
2015-10-01 - 2016-09-30
2014-10-01 - 2015-09-30
2013-10-01 - 2014-09-30
Asset Retirement Obligation [Abstract]
 
 
 
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
 
 
 
Balance at Beginning of Year
156,805,000  
117,713,000  
119,511,000  
Liabilities Incurred
2,719,000  
4,433,000  
5,390,000  
Revisions of Estimates
16,721,000  
33,717,000  
(7,886,000) 
Liabilities Settled
(72,215,000) 
(6,825,000) 
(6,955,000) 
Accretion Expense
8,300,000  
7,767,000  
7,653,000  
Balance at End of Year
112,330,000  
 
156,805,000  
 
117,713,000