Exploratory Well Costs (Notes)

9 Months Ended

Sep. 30, 2018

Capitalized Exploratory Well Costs [Abstract]

Exploratory Well Costs

Exploratory Well Costs

EOG's net changes in capitalized exploratory well costs for the nine-month period ended September 30, 2018, are presented below (in thousands):

	Nine Months Ended   September 30, 2018
Balance at January 1	$	2,167
Additions Pending the Determination of Proved Reserves	6,497
Reclassifications to Proved Properties	(5,346		)
Costs Charged to Expense	(433		)
Balance at September 30	$	2,885

At September 30, 2018, all capitalized exploratory well costs had been capitalized for periods of less than one year.