Exploratory Well Costs (Notes)

3 Months Ended

Mar. 31, 2020

Capitalized Exploratory Well Costs [Abstract]

Exploratory Well Costs

Exploratory Well Costs

EOG's net changes in capitalized exploratory well costs for the three-month period ended March 31, 2020, are presented below (in thousands):

	Three Months Ended March 31, 2020
Balance at January 1	$	25,897
Additions Pending the Determination of Proved Reserves	25,068
Reclassifications to Proved Properties	(2,178		)
Costs Charged to Expense (1)	(4,474		)
Balance at March 31	$	44,313

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

At March 31, 2020, all capitalized exploratory well costs had been capitalized for periods of less than one year.