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Oil And Gas Properties (Schedule Of Net Oil And Gas Properties) (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Proved producing properties $ 626,397us-gaap_CapitalizedCostsProvedProperties $ 1,058,517us-gaap_CapitalizedCostsProvedProperties
Unproved properties 396,325us-gaap_CapitalizedCostsUnprovedProperties 264,717us-gaap_CapitalizedCostsUnprovedProperties
Net Oil and Gas Properties 472,313us-gaap_OilAndGasPropertyFullCostMethodNet 718,762us-gaap_OilAndGasPropertyFullCostMethodNet
Oil And Gas Properties    
Proved producing properties 580,825us-gaap_CapitalizedCostsProvedProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
1,044,068us-gaap_CapitalizedCostsProvedProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
Proved non-producing properties 45,572SPRN_CapitalizedCostProvedNonProducingProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
14,448SPRN_CapitalizedCostProvedNonProducingProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
Unproved properties 396,325us-gaap_CapitalizedCostsUnprovedProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
264,718us-gaap_CapitalizedCostsUnprovedProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
Accumulated depletion 693,699us-gaap_OilAndGasPropertyFullCostMethodDepletion
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
745,638us-gaap_OilAndGasPropertyFullCostMethodDepletion
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
Net Oil and Gas Properties $ 329,023us-gaap_OilAndGasPropertyFullCostMethodNet
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember
$ 577,596us-gaap_OilAndGasPropertyFullCostMethodNet
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OilAndGasPropertiesMember