Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement Obligations

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Asset Retirement Obligations
 6 Months Ended
Jun. 30, 2017
Asset Retirement Obligation [Abstract]  
Asset Retirement Obligations
Asset Retirement Obligations

The table below summarizes the activity for the Company’s asset retirement obligations:

For The Six Months Ended

June 30, 2017
Asset retirement obligations at January 1, 2017
$
6,661

Accretion expense
392

Liabilities incurred
208

Liabilities settled
(227
)
Revisions to estimate
(236
)
Asset retirement obligations at end of period
6,798

Less: Current asset retirement obligations
(1,767
)
Long-term asset retirement obligations at June 30, 2017
$
5,031



Certain of the Company’s operating agreements require that assets be restricted for abandonment obligations. Amounts recorded in the Consolidated Balance Sheets at June 30, 2017 as long-term restricted investments were $3,348. These assets, which primarily include short-term U.S. Government securities, are held in abandonment trusts dedicated to pay future abandonment costs for several of the Company’s oil and natural gas properties.