XML 61 R41.htm IDEA: XBRL DOCUMENT v2.4.1.9
Derivatives (Schedule of Non-designated Hedges Outstanding) (Details)
 3 Months Ended
Mar. 31, 2015
bbl
Swap [Member] | Apr'15 - Dec'15 [Member] | Crude Oil [Member] | WTI - NYMEX [Member]  
Derivative [Line Items]  
Weighted Average Price 95.00unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_WtiNymexMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SwapMember
/ unt_ReportDateAxis
= unt_AprilTwoThousandFifteentoDecemberTwoThousandFifteenMember
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_CrudeOilMember
Hedged Volume (Bbl/day) 1,000unt_NotDesignatedasHedgingInstrumentHedgedVolumeofOil
/ unt_ExchangeAxis
= unt_WtiNymexMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SwapMember
/ unt_ReportDateAxis
= unt_AprilTwoThousandFifteentoDecemberTwoThousandFifteenMember
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_CrudeOilMember
Swap [Member] | Apr'15 - Dec'15 [Member] | Crude Oil [Member] | WTI - NYMEX [Member] | Start [Member]  
Derivative [Line Items]  
Commodity Derivatives Term Apr'15
Swap [Member] | Apr'15 - Dec'15 [Member] | Crude Oil [Member] | WTI - NYMEX [Member] | End [Member]  
Derivative [Line Items]  
Commodity Derivatives Term Dec'15
Swap [Member] | Apr'15 - Dec'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member]  
Derivative [Line Items]  
Weighted Average Price 3.98unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SwapMember
/ unt_ReportDateAxis
= unt_AprilTwoThousandFifteentoDecemberTwoThousandFifteenMember
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Hedged Volume (MMBtu/day) 40,000unt_NotDesignatedasHedgingInstrumentHedgedVolumeofNaturalGas
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SwapMember
/ unt_ReportDateAxis
= unt_AprilTwoThousandFifteentoDecemberTwoThousandFifteenMember
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Swap [Member] | Apr'15 - Dec'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | Start [Member]  
Derivative [Line Items]  
Commodity Derivatives Term Apr'15
Swap [Member] | Apr'15 - Dec'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | End [Member]  
Derivative [Line Items]  
Commodity Derivatives Term Dec'15
Swap [Member] | Apr'15 - Jun'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member]  
Derivative [Line Items]  
Weighted Average Price 3.10unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SwapMember
/ unt_ReportDateAxis
= unt_Apr15Jun15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Hedged Volume (MMBtu/day) 30,000unt_NotDesignatedasHedgingInstrumentHedgedVolumeofNaturalGas
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SwapMember
/ unt_ReportDateAxis
= unt_Apr15Jun15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Swap [Member] | Apr'15 - Jun'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | Start [Member]  
Derivative [Line Items]  
Commodity Derivatives Term Apr'15
Swap [Member] | Apr'15 - Jun'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | End [Member]  
Derivative [Line Items]  
Commodity Derivatives Term Jun'15
Collar [Member] | Apr'15 - Jun'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member]  
Derivative [Line Items]  
Hedged Volume (MMBtu/day) 30,000unt_NotDesignatedasHedgingInstrumentHedgedVolumeofNaturalGas
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= unt_CollarMember
/ unt_ReportDateAxis
= unt_Apr15Jun15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Collar [Member] | Apr'15 - Jun'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | Start [Member]  
Derivative [Line Items]  
Weighted Average Price 2.92unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= unt_CollarMember
/ us-gaap_RangeAxis
= unt_StartMember
/ unt_ReportDateAxis
= unt_Apr15Jun15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Commodity Derivatives Term Apr'15
Collar [Member] | Apr'15 - Jun'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | End [Member]  
Derivative [Line Items]  
Weighted Average Price 3.26unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= unt_CollarMember
/ us-gaap_RangeAxis
= unt_EndMember
/ unt_ReportDateAxis
= unt_Apr15Jun15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Commodity Derivatives Term Jun'15
Collar [Member] | Jul'15 - Sep'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member]  
Derivative [Line Items]  
Hedged Volume (MMBtu/day) 30,000unt_NotDesignatedasHedgingInstrumentHedgedVolumeofNaturalGas
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= unt_CollarMember
/ unt_ReportDateAxis
= unt_Jul15Sep15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Collar [Member] | Jul'15 - Sep'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | Start [Member]  
Derivative [Line Items]  
Weighted Average Price 2.58unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= unt_CollarMember
/ us-gaap_RangeAxis
= unt_StartMember
/ unt_ReportDateAxis
= unt_Jul15Sep15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Commodity Derivatives Term Jul'15
Collar [Member] | Jul'15 - Sep'15 [Member] | Natural Gas [Member] | NYMEX (HH) [Member] | End [Member]  
Derivative [Line Items]  
Weighted Average Price 3.04unt_NonDesignatedDerivativeInstrumentWeightedAverageFixedPriceForSwaps
/ unt_ExchangeAxis
= unt_NYMEXMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= unt_CollarMember
/ us-gaap_RangeAxis
= unt_EndMember
/ unt_ReportDateAxis
= unt_Jul15Sep15Member
/ us-gaap_TradingActivityByTypeAxis
= us-gaap_NaturalGasReservesMember
Commodity Derivatives Term Sep'15