Annual report pursuant to Section 13 and 15(d)

Asset Retirement Obligations (Tables)

v3.10.0.1
Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2018
Asset Retirement Obligation Disclosure [Abstract]  
Reconciliation of Asset Retirement Obligations which are Included in Other Liabilities
The following table reconciles our AROs as of the dates presented, which are included in the “Other liabilities” caption on our Consolidated Balance Sheets: 
 
Year Ended December 31,
 
2018
 
2017
Balance at beginning of period
$
3,286

 
$
2,459

Changes in estimates
354

 
149

Liabilities incurred
335

 
118

Liabilities settled
(8
)
 
(139
)
Purchase of properties
385

 
494

Sale of properties
(310
)
 

Accretion expense
272

 
205

Balance at end of period
$
4,314

 
$
3,286