XML 25 R12.htm IDEA: XBRL DOCUMENT v3.20.2
Exploratory Well Costs
6 Months Ended
Jun. 30, 2020
Capitalized Exploratory Well Costs [Abstract]  
Exploratory Well Costs Exploratory Well Costs
EOG's net changes in capitalized exploratory well costs for the six-month period ended June 30, 2020, are presented below (in thousands):
 Six Months Ended
June 30, 2020
Balance at January 1$25,897  
Additions Pending the Determination of Proved Reserves55,669  
Reclassifications to Proved Properties(2,178) 
Costs Charged to Expense (1)
(10,988) 
Balance at June 30$68,400  
(1)Includes capitalized exploratory well costs charged to either dry hole costs or impairments.

At June 30, 2020, all capitalized exploratory well costs had been capitalized for periods of less than one year.