XML 130 R106.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Supplemental Information on Natural Gas and Oil Exploration, Development and Production Activities (Unaudited) - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 MMcfe Mcfe | Dec. 31, 2013 MMcfe | Dec. 31, 2012 MMcfe
Reserve Quantities [Line Items] |  |  |
Percentage of proved resources reviewed by consultants | 96.00%rrc_PercentageOfProvedResourcesReviewedByConsultants |  |
Statement That Reserve Estimates Differ From Auditors | more than 10% |  |
Proved Reserve And Pretax Present Value of Reserve Discounted | 10.00%rrc_ProvedReserveAndPretaxPresentValueOfReserveDiscounted |  |
Variance in reserve estimates | less than 5%. |  |
Scheduled to be drilling period maximum for undeveloped reserves | Scheduled to be drilled within five years |  |
Proved reserves from drilling activities and evaluations of proved areas | 2,398,709 us-gaap_ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy | 1,732,944 us-gaap_ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy | 1,767,202 us-gaap_ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy
Reserve attributable to natural gas | 58.00%rrc_ReservesAttributableToNaturalGas | 49.00%rrc_ReservesAttributableToNaturalGas | 56.00%rrc_ReservesAttributableToNaturalGas
Positive performance energy revisions for ethane reserves | 1,170,000 rrc_ProvedDevelopedAndUndevelopedEnergyReservesEthaneAdditions | 676,000 rrc_ProvedDevelopedAndUndevelopedEnergyReservesEthaneAdditions | 307,000 rrc_ProvedDevelopedAndUndevelopedEnergyReservesEthaneAdditions
Revisions of previous estimates | 90,822 us-gaap_ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy | 448,898 us-gaap_ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy | 109,036 us-gaap_ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
Proved undeveloped reserves dropped | 611,341 rrc_ProvedUnDevelopedReservesDropped |  |
Cost spent on undeveloped reserves transferred to developed reserves | $ 591.0 rrc_ProvedUndevelopedReservesTransferredToDevelopedDollarSpent |  |
Volume of Mmcfe of reserves that have been reported for five or more years included in proved undeveloped reserves, approximately | 3 rrc_VolumeOfMmcfeOfReservesThatHaveBeenReportedForFiveOrMoreYearsIncludedInProvedUndevelopedReservesApproximately |  |
Period for which the reserves have been reported to be included in proved undeveloped reserves | Five or more years. |  |
Maximum |  |  |
Reserve Quantities [Line Items] |  |  |
Percentage of proved undeveloped reserves | 1.00%rrc_PercentageOfProvedUndevelopedReserves / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Year 2015 |  |  |
Reserve Quantities [Line Items] |  |  |
Estimated future development costs | 981.1 rrc_EstimatedFutureDevelopmentCosts / us-gaap_SubsequentEventTypeAxis = rrc_YearTwoThousandAndFifteenMember |  |
Year 2016 |  |  |
Reserve Quantities [Line Items] |  |  |
Estimated future development costs | 1,000.0 rrc_EstimatedFutureDevelopmentCosts / us-gaap_SubsequentEventTypeAxis = rrc_YearTwoThousandAndSixteenMember |  |
Year 2017 |  |  |
Reserve Quantities [Line Items] |  |  |
Estimated future development costs | $ 993.5 rrc_EstimatedFutureDevelopmentCosts / us-gaap_SubsequentEventTypeAxis = rrc_YearTwoThousandAndSeventeenMember |  |
Crude Oil |  |  |
Reserve Quantities [Line Items] |  |  |
Estimate reserve information average realized prices | 79.04 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_OilReservesMember | 86.66 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_OilReservesMember | 86.91 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_OilReservesMember
NGLs |  |  |
Reserve Quantities [Line Items] |  |  |
Estimate reserve information average realized prices | 27.20 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasLiquidsReservesMember | 25.93 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasLiquidsReservesMember | 32.23 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasLiquidsReservesMember
Positive performance revisions for ethane reserves | 264,300 rrc_ProvedDevelopedAndUndevelopedReservesEthaneAdditions / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasLiquidsReservesMember | 155,800 rrc_ProvedDevelopedAndUndevelopedReservesEthaneAdditions / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasLiquidsReservesMember | 51,200 rrc_ProvedDevelopedAndUndevelopedReservesEthaneAdditions / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasLiquidsReservesMember
Natural Gas |  |  |
Reserve Quantities [Line Items] |  |  |
Estimate reserve information average realized prices | 4.14 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasReservesMember | 3.75 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasReservesMember | 2.75 rrc_EstimateReserveInformationAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasReservesMember
Crude Oil and NGL |  |  |
Reserve Quantities [Line Items] |  |  |
Benchmark price used for calculating average realized prices | 94.42 rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_CrudeOilAndNGLPerBarrelMember | 97.33 rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_CrudeOilAndNGLPerBarrelMember | 95.05 rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_CrudeOilAndNGLPerBarrelMember
Natural Gas, Per Thousand Cubic Feet |  |  |
Reserve Quantities [Line Items] |  |  |
Benchmark price used for calculating average realized prices | 4.35 rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasPerThousandCubicFeetMember | 3.67 rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasPerThousandCubicFeetMember | 2.76 rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices / us-gaap_ReserveQuantitiesByTypeOfReserveAxis = us-gaap_NaturalGasPerThousandCubicFeetMember

X
- Definition Benchmark price used for calculating average realized prices. + References No definition available. + Details
Name: | rrc_BenchmarkPriceUsedForCalculatingAverageRealizedPrices
Namespace Prefix: | rrc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Estimated future development costs. + References No definition available. + Details
Name: | rrc_EstimatedFutureDevelopmentCosts
Namespace Prefix: | rrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Estimate reserve information average realized prices. + References No definition available. + Details
Name: | rrc_EstimateReserveInformationAverageRealizedPrices
Namespace Prefix: | rrc_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition The historical amount range that the internal calculations from reserve engineers have differed from the reserve consultants. + References No definition available. + Details
Name: | rrc_MaximumHistoricalPercentDifferenceFromConsultants
Namespace Prefix: | rrc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of proved resources reviewed by consultants. + References No definition available. + Details
Name: | rrc_PercentageOfProvedResourcesReviewedByConsultants
Namespace Prefix: | rrc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of proved undeveloped reserves that have been reported for five or more years. + References No definition available. + Details
Name: | rrc_PercentageOfProvedUndevelopedReserves
Namespace Prefix: | rrc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period for which the reserves have been reported to be included in proved undeveloped reserves. + References No definition available. + Details
Name: | rrc_PeriodForWhichReservesHaveBeenReportedInProvedUndevelopedReserves
Namespace Prefix: | rrc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proved developed and undeveloped energy reserves ethane additions. + References No definition available. + Details
Name: | rrc_ProvedDevelopedAndUndevelopedEnergyReservesEthaneAdditions
Namespace Prefix: | rrc_
Data Type: | num:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proved developed and undeveloped reserves ethane additions. + References No definition available. + Details
Name: | rrc_ProvedDevelopedAndUndevelopedReservesEthaneAdditions
Namespace Prefix: | rrc_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proved reserve and pre - tax present value of reserve discounted. + References No definition available. + Details
Name: | rrc_ProvedReserveAndPretaxPresentValueOfReserveDiscounted
Namespace Prefix: | rrc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of Proved Undeveloped Reserves dropped in the current year due to the application of the five year rule. + References No definition available. + Details
Name: | rrc_ProvedUnDevelopedReservesDropped
Namespace Prefix: | rrc_
Data Type: | num:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proved undeveloped reserves transferred to developed dollar spent. + References No definition available. + Details
Name: | rrc_ProvedUndevelopedReservesTransferredToDevelopedDollarSpent
Namespace Prefix: | rrc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reserves attributable to natural gas. + References No definition available. + Details
Name: | rrc_ReservesAttributableToNaturalGas
Namespace Prefix: | rrc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Scheduled drilling period maximum for undeveloped reserves. + References No definition available. + Details
Name: | rrc_ScheduledDrillingPeriodMaximumForUndevelopedReserves
Namespace Prefix: | rrc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Statement that reserve estimates differ from auditors. + References No definition available. + Details
Name: | rrc_StatementThatReserveEstimatesDifferFromAuditors
Namespace Prefix: | rrc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Volume of mmcfe of reserves that have been reported for five or more years included in proved undeveloped reserves approximately. + References No definition available. + Details
Name: | rrc_VolumeOfMmcfeOfReservesThatHaveBeenReportedForFiveOrMoreYearsIncludedInProvedUndevelopedReservesApproximately
Namespace Prefix: | rrc_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61831-109447 + Details
Name: | us-gaap_ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy
Namespace Prefix: | us-gaap_
Data Type: | num:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61831-109447 + Details
Name: | us-gaap_ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
Namespace Prefix: | us-gaap_
Data Type: | num:energyItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ReserveQuantitiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReserveQuantitiesByTypeOfReserveAxis=us-gaap_CrudeOilAndNGLPerBarrelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReserveQuantitiesByTypeOfReserveAxis=us-gaap_NaturalGasLiquidsReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReserveQuantitiesByTypeOfReserveAxis=us-gaap_NaturalGasPerThousandCubicFeetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReserveQuantitiesByTypeOfReserveAxis=us-gaap_NaturalGasReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReserveQuantitiesByTypeOfReserveAxis=us-gaap_OilReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=rrc_YearTwoThousandAndFifteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=rrc_YearTwoThousandAndSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=rrc_YearTwoThousandAndSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |