Asset Retirement Obligation (Tables)

3 Months Ended

Mar. 31, 2014

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligation Summary

	Asset Retirement
Asset Category	Obligation			Estimated Life
Oil and gas producing properties	$	2	(1)	27.5 years

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(1) This is a recurring Level 3 fair value measurement. See Note 7 - “Fair Value Measurements” for further discussions of Level 3 valuation definitions.

Change in Asset Retirement Obligation

	2014
Asset retirement obligation at beginning of period	$	2
Additions during the period		—
Revisions of estimates		—
Accretion expense		—
Asset retirement obligation at end of period	$	2