Exploratory Well Costs

9 Months Ended

Sep. 30, 2015

Capitalized Exploratory Well Costs [Abstract]

Exploratory Well Costs [Text Block]

Exploratory Well Costs

EOG's net changes in capitalized exploratory well costs for the nine-month period ended September 30, 2015, are presented below (in thousands):

	Nine Months Ended   September 30, 2015
Balance at January 1	$	17,253
Additions Pending the Determination of Proved Reserves	23,936
Reclassifications to Proved Properties	(26,499		)
Costs Charged to Expense	(6,178		)	(1)
Balance at September 30	$	8,512

(1) Includes capitalized exploratory well costs charged to dry hole costs.

At September 30, 2015, all capitalized exploratory well costs had been capitalized for periods of less than one year.