XML 74 R53.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Changes in total proved undeveloped reserves (Details) | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
Gas (MMCF) |  |  |
Proved undeveloped reserves - Gas | 2,168 | 2,168 | 2,100
Revaluation of undeveloped reserves - Gas | 0 | (68) | 0
Conversion to proved developed reserves - Gas | 0 | 0 | 0
Oil (MBBLS) |  |  |
Proved undeveloped reserves - Oil | 68 | 68 | 0
Revaluation of undeveloped reserves - Oil | 0 | (68) | 0
Conversion to proved developed reserves - Oil | 0 | 0 | 0

X
- Definition Conversion to proved developed reserves - Gas + References No definition available. + Details
Name: | fil_ConversionToProvedDevelopedReservesGas
Namespace Prefix: | fil_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Conversion to proved developed reserves - Oil + References No definition available. + Details
Name: | fil_ConversionToProvedDevelopedReservesOil
Namespace Prefix: | fil_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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

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

X
- Definition The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. + References No definition available. + Details
Name: | fil_ProvedUndevelopedReservesGas
Namespace Prefix: | fil_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. + References No definition available. + Details
Name: | fil_ProvedUndevelopedReservesOil
Namespace Prefix: | fil_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Revaluation of undeveloped reserves - Gas + References No definition available. + Details
Name: | fil_RevaluationOfUndevelopedReservesGas
Namespace Prefix: | fil_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Revaluation of undeveloped reserves - Oil + References No definition available. + Details
Name: | fil_RevaluationOfUndevelopedReservesOil
Namespace Prefix: | fil_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant