Exploratory Well Costs

3 Months Ended

Mar. 31, 2015

Capitalized Exploratory Well Costs [Abstract]

Exploratory Well Costs [Text Block]

7.Exploratory Well Costs

EOG's net changes in capitalized exploratory well costs for the three-month period ended March 31, 2015, are presented below (in thousands):

	Three Months Ended   March 31, 2015
Balance at January 1	$	17,253
Additions Pending the Determination of Proved Reserves	12,963
Reclassifications to Proved Properties	(10,407		)
Costs Charged to Expense	—
Balance at March 31	$	19,809

At March 31, 2015, all capitalized exploratory well costs had been capitalized for periods of less than one year.