Rendering

Component: (Network and Table)
Network
2312301 - Disclosure - Asset Retirement Obligations (Tables)
(http://www.westerngas.com/role/AssetRetirementObligationsTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001414475 (http://www.sec.gov/CIK)
Asset Retirement Obligation Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Asset Retirement Obligation Disclosure [Abstract]
 
Asset Retirement Obligations Table
The following table provides a summary of changes in asset retirement obligations:
 
 
Year Ended December 31,
thousands
 
2016
 
2015
Carrying amount of asset retirement obligations at beginning of year
 
$
130,631

 
$
119,855

Liabilities incurred
 
5,515

 
9,490

Liabilities settled
 
(10,650
)
 
(7,905
)
Accretion expense
 
6,794

 
6,381

Revisions in estimated liabilities
 
10,117

 
2,810

Carrying amount of asset retirement obligations at end of year
 
$
142,407

 
$
130,631