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Asset retirement obligation (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Asset retirement obligation Details |  |
Asset retirement obligation, January 1 | $ 2,770 | $ 2,770
Acquisition of oil and gas properties | 0 | 0
Revisions in the estimated cash flows | 0 | 0
Liability incurred upon acquiring and drilling wells | 0 | 0
Liability settled upon plugging and abandoning wells | 0 | 0
Accretion of discounnt expense | 0 | 0
Asset retirement obligation, December 31 | $ 2,770 | $ 2,770

X
- Definition The estimated future income tax expenses that will be incurred based on the future income less future expenses derived from production and sale of proved oil and gas reserves in this geographic region. + References No definition available. + Details
Name: | fil_AccretionOfDiscounntExpense
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves. + References No definition available. + Details
Name: | fil_AcquisitionOfOilAndGasProperties
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References No definition available. + Details
Name: | fil_AssetRetirementObligationDecember31
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References No definition available. + Details
Name: | fil_AssetRetirementObligationJanuary1
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of a reclamation liability that is associated with a legal obligation for the closure and reclamation of oil and gas properties. + References No definition available. + Details
Name: | fil_LiabilityIncurredUponAcquiringAndDrillingWells
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability settled upon plugging and abandoning wells + References No definition available. + Details
Name: | fil_LiabilitySettledUponPluggingAndAbandoningWells
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This is the amount that is derived from using a discount rate of ten percent a year to reflect the timing of the future net cash flows relating to proved oil and gas reserves. + References No definition available. + Details
Name: | fil_RevisionsInTheEstimatedCashFlows
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant