XML 66 R42.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Suspended Exploratory Well Costs (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Extractive Industries [Abstract] |
Suspended Exploratory Well Costs | The following table reflects the changes in capitalized exploratory well costs for the years ended December 31, 2018, 2017 and 2016 (in thousands, except for number of projects):
| 2018 |  | 2017 |  |  | 2016 |
Balance at beginning of period | $ | — |  | $ | 7,412 |  |  | $ | 4,161 |
Additions to capitalized exploratory well costs pending the determination of proved reserves |  | — |  |  | 1,388 |  |  |  | 9,128 |
Reclassifications to wells, facilities and equipment based on determination of proved reserves |  | — |  |  | — |  |  |  | (5,877 | )
Capitalized exploratory well costs charged to expense |  | — |  |  | (8,800 | ) |  |  | — |
Balance at end of period |  | — |  |  | — |  |  |  | 7,412 |
Less exploratory well costs that have been capitalized for a period of one year or less |  | — |  |  | — |  |  |  | (7,412 | )
Capitalized exploratory well costs that have been capitalized for a period greater than one year | $ | — |  | $ | — |  |  | $ | — |
Number of projects that have exploratory well costs that have been capitalized for a period greater than one year |  | — |  |  | — |  |  |  | — |

X
- References No definition available. + Details
Name: | srt_ExtractiveIndustriesAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in capitalized exploratory costs during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447 + Details
Name: | us-gaap_CapitalizedExploratoryWellCostsRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration