XML 88 R41.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Current deferred tax assets    
Property and equipment $ 113us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment $ 62us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment
Unrealized loss on derivatives 0mtdr_DeferredTaxAssetsDerivativesCurrent 965mtdr_DeferredTaxAssetsDerivativesCurrent
Other 281us-gaap_DeferredTaxAssetsOther 609us-gaap_DeferredTaxAssetsOther
Total current deferred tax assets 394us-gaap_DeferredTaxAssetsGrossCurrent 1,636us-gaap_DeferredTaxAssetsGrossCurrent
Current deferred tax liabilities    
Unrealized gain on derivatives (20,145)us-gaap_DeferredTaxLiabilitiesDerivatives 0us-gaap_DeferredTaxLiabilitiesDerivatives
Deferred Tax Liabilities, Net, Current (19,751)us-gaap_DeferredTaxLiabilitiesCurrent 0us-gaap_DeferredTaxLiabilitiesCurrent
Deferred Tax Assets, Net, Current   1,636us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent
Non-current deferred tax assets    
Unrealized loss on derivatives 0mtdr_DeferredTaxAssetsDerivativeNoncurrent 28mtdr_DeferredTaxAssetsDerivativeNoncurrent
Net operating loss carryforwards 88,447mtdr_DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent 63,007mtdr_DeferredTaxAssetsOperatingLossCarryforwardsNoncurrent
Alternative minimum tax carryforwards 7,197us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax 7,064us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
Deferred Tax Asset, Noncurrent Attributable to Percentage Depletion Carryover 2,068mtdr_DeferredTaxAssetNoncurrentAttributabletoPercentageDepletionCarryover 0mtdr_DeferredTaxAssetNoncurrentAttributabletoPercentageDepletionCarryover
Total non-current deferred tax assets 97,712us-gaap_DeferredTaxAssetsGrossNoncurrent 70,099us-gaap_DeferredTaxAssetsGrossNoncurrent
Valuation allowance on non-current deferred tax assets 0us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent (30)us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent
Total non-current deferred tax assets, net of valuation allowance 97,712us-gaap_DeferredTaxAssetsNet 70,069us-gaap_DeferredTaxAssetsNet
Non-current deferred tax liabilities    
Property and equipment (145,620)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (76,719)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Other (5,875)mtdr_DeferredTaxLiabilitiesOtherNoncurrent (4,279)mtdr_DeferredTaxLiabilitiesOtherNoncurrent
Total non-current deferred tax liabilities (151,495)us-gaap_DeferredTaxLiabilitiesGrossNoncurrent (80,998)us-gaap_DeferredTaxLiabilitiesGrossNoncurrent
Net non-current deferred tax liabilities $ (53,783)mtdr_DeferredTaxAssetsLiabilitiesNetofValuationAllowanceNoncurrent $ (10,929)mtdr_DeferredTaxAssetsLiabilitiesNetofValuationAllowanceNoncurrent