Disclosures About Capitalized Costs, Costs Incurred (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Oil And Gas Property Successful Effort Method

Capitalized costs related to oil and gas activities are as follows (in thousands):



	December 31,
	2017			2016
Company:
Unproved properties	$	—		$	—
Proved properties	400			1,122
	400			1,122
Accumulated depreciation and depletion	(275		)	(930		)
Total	$	125		$	192

Company’s share of Laramie Energy:
Unproved properties	$	13,728		$	14,416
Proved properties	382,789			334,085
	396,517			348,501
Accumulated depreciation, depletion, and amortization	(111,119		)	(91,454		)
Total	$	285,398		$	257,047

Cost Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities Disclosure

Costs incurred in oil and gas activities including costs associated with assets retirement obligations, are as follows (in thousands):



	Year Ended December 31,
	2017		2016		2015
Company:
Development costs—other	$	—	$	—	$	—
Total	$	—	$	—	$	—

Company’s share of Laramie Energy:
Acquisition costs	$	—	$	65,324	$	—
Development costs—other	49,273		12,805		21,747
Total	$	49,273	$	78,129	$	21,747

Capitalized Exploratory Well Costs, Roll Forward

A summary of the results of operations for oil and gas producing activities, excluding general and administrative costs, is as follows (in thousands):



	Year Ended December 31,
	2017		2016			2015
Company:
Revenue
Oil and gas revenues	$	288	$	190		$	2,019
Expenses
Production costs	29		147			5,283
Depletion and amortization	66		69			42
Exploration	—		—			—
Abandoned and impaired properties	—		—			—
Results of operations of oil and gas producing activities	$	193	$	(26	)	$	(3,306	)

Company’s share of Laramie Energy:
Revenue
Oil and gas revenues	$	66,783	$	43,607		$	14,217
Expenses
Production costs	32,606		27,750			11,047
Impairment of unproved properties	—		—			3,977
Depletion, depreciation, and amortization	21,277		17,534			8,226
Results of operations of oil and gas producing activities	$	12,900	$	(1,677	)	$	(9,033	)

Total results of operations of oil and gas producing activities	$	13,093	$	(1,703	)	$	(12,339	)