Exploratory Well Costs

9 Months Ended

Sep. 30, 2021

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, 2021, are presented below (in millions):

	Nine Months Ended September 30, 2021
Balance at January 1	$	29
Additions Pending the Determination of Proved Reserves	48
Reclassifications to Proved Properties	(4)
Costs Charged to Expense (1)	(12)
Balance at September 30	$	61

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

	Nine Months Ended September 30, 2021
Capitalized exploratory well costs that have been capitalized for a period of one year or less	$	46
Capitalized exploratory well costs that have been capitalized for a period greater than one year (1)	15
Balance at September 30	$	61
Number of exploratory wells that have been capitalized for a period greater than one year	1

(1)Consists of costs related to a project in Trinidad at September 30, 2021.