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Suspended Exploratory Well Costs (Tables) | 9 Months Ended
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Sep. 30, 2014
Extractive Industries [Abstract] |
Suspended Exploratory Well Costs | The following table reflects the changes in capitalized exploratory well costs for the nine months ended September 30, 2014 and the year ended December 31, 2013 (in thousands except for number of projects):
|  | September 30, 2014 |  |  | December 31, 2013 |
Balance at beginning of period |  | $ | 6,964 |  |  | $ | 57,360 |
Additions to capitalized exploratory well costs pending the determination of proved reserves |  |  | 90,767 |  |  |  | 39,832 |
Reclassifications to wells, facilities and equipment based on determination of proved reserves |  |  | (15,735 | ) |  |  | (84,840 | )
Capitalized exploratory well costs charged to expense |  |  | — |  |  |  | — |
Divested wells |  |  | — |  |  |  | (5,388 | )
Balance at end of period |  |  | 81,996 |  |  |  | 6,964 |
Less exploratory well costs that have been capitalized for a period of one year or less |  |  | (46,412 | ) |  |  | — |
Capitalized exploratory well costs that have been capitalized for a period greater than one year |  | $ | 35,584 |  |  | $ | 6,964 |
Number of projects that have exploratory well costs that have been capitalized for a period greater than one year |  |  | 5 |  |  |  | 1 |
Aging of Capitalized Exploratory Well Costs Suspended More Than One Year | The following table provides an aging of capitalized exploratory well costs that have been suspended for more than one year as of September 30, 2014 (in thousands):
|  | Total |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Capitalized exploratory well costs that have been capitalized for more than one year |  | $ | 35,584 |  | $ | 24,484 |  |  | $ | 4,246 |  |  | $ | 6,801 |  |  | $ | 53 |

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- Definition Tabular disclosure of the change in capitalized exploratory costs during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=8451039&loc=SL6806780-109447 + Details
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- Definition Tabular disclosure of the amount of exploratory well costs that have been capitalized after the completion of drilling and the number of projects for which those costs relate. Additionally, for exploratory well costs that have been capitalized for periods greater than one year at the most recent balance sheet date, this block of text may be used to disclose an aging of those amounts by year, or by using a range of years, and the number of projects to which those costs relate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=8451039&loc=SL6806780-109447 + Details
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