v3.6.0.2

Exploratory Well Costs (Tables) | 12 Months Ended
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Dec. 31, 2016
Capitalized Exploratory Well Costs [Abstract] |
Net Changes in Capitalized Exploratory Well Costs | EOG's net changes in capitalized exploratory well costs for the years ended December 31, 2016, 2015 and 2014 are presented below (in thousands):
| 2016 |  | 2015 |  | 2014
Balance at January 1 | $ | 8,955 |  |  | $ | 17,253 |  |  | $ | 9,211 |
Additions Pending the Determination of Proved Reserves | 6,688 |  |  | 24,640 |  |  | 32,080 |
Reclassifications to Proved Properties | (5,274 | ) |  | (26,659 | ) |  | (15,946 | )
Costs Charged to Expense (1) | (10,369 | ) |  | (6,279 | ) |  | (8,092 | )
Balance at December 31 | $ | — |  |  | $ | 8,955 |  |  | $ | 17,253 |
(1) | Includes capitalized exploratory well costs charged to either dry hole costs or impairments.

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- References No definition available. + Details
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