Suspended Exploratory Well Costs (Tables)

3 Months Ended

Mar. 31, 2017

Extractive Industries [Abstract]

Suspended Exploratory Well Costs

The following table reflects the change in capitalized exploratory well costs for the three months ended March 31, 2017 and the year ended December 31, 2016 (in thousands):

		March 31, 2017			December 31, 2016
Balance at beginning of period	$	7,412		$	4,161
Additions to capitalized exploratory well costs pending the determination of proved reserves		872			9,128
Reclassifications to wells, facilities and equipment based on determination of proved reserves		—			(5,877	)
Balance at end of period		8,284			7,412
Less exploratory well costs that have been capitalized for a period of one year or less		(8,284	)		(7,412	)
Capitalized exploratory well costs that have been capitalized for a period greater than one year	$	—		$	—
Number of projects that have exploration well costs that have been capitalized greater than one year		—			—