XML 41 R61.htm IDEA: XBRL DOCUMENT v2.4.1.9
Supplementary Financial Information on Oil and Natural Gas Exploration, Development and Production (Details Narrative)
 12 Months Ended
Dec. 31, 2014
Average Sales Price and Production Costs Per Unit of Production [Line Items]  
Ownership percentage by noncontrolling owners 50.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Minimum [Member] | Natural Gas [Member]  
Average Sales Price and Production Costs Per Unit of Production [Line Items]  
Average prices 0.00455us-gaap_AverageSalesPrices
/ us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis
= us-gaap_NaturalGasPerThousandCubicFeetMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Minimum [Member] | Crude Oil [Member]  
Average Sales Price and Production Costs Per Unit of Production [Line Items]  
Average prices 58.70us-gaap_AverageSalesPrices
/ us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis
= us-gaap_CrudeOilAndNGLPerBarrelMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member] | Natural Gas [Member]  
Average Sales Price and Production Costs Per Unit of Production [Line Items]  
Average prices 0.00597us-gaap_AverageSalesPrices
/ us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis
= us-gaap_NaturalGasPerThousandCubicFeetMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Maximum [Member] | Crude Oil [Member]  
Average Sales Price and Production Costs Per Unit of Production [Line Items]  
Average prices 82.93us-gaap_AverageSalesPrices
/ us-gaap_AverageSalesPriceAndProductionCostsPerUnitOfProductionProductionTypeAxis
= us-gaap_CrudeOilAndNGLPerBarrelMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember