$CNX
CNX Resources Corp Stock $cnx

$cnx Overview Financials Valuation SEC Filings Company Website

2011 Q4 Form 10-K Financial Statement

#000107041212000008 Filed on February 10, 2012

Income Statement

Concept	2011 Q4	2011	2010 Q4
Revenue	$1.383B	$4.377B	$1.308B
YoY Change	5.79%	-16.41%	7.75%
Cost Of Revenue	$969.9M	$2.605B	$871.3M
YoY Change	11.32%	-24.53%	8.13%
Gross Profit	$488.8M	$1.633B	$465.7M
YoY Change	4.96%	-3.19%	14.17%
Gross Profit Margin	35.33%	37.32%	35.61%
Selling, General & Admin	$124.5M	$114.6M	$126.9M
YoY Change	-1.89%	-23.68%	17.39%
% of Gross Profit	25.47%	7.02%	27.25%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	-$36.00M	$430.6M	$154.3M
YoY Change	-123.33%	-24.15%	35.71%
% of Gross Profit	-7.36%	26.36%	33.13%
Operating Expenses	$276.3M	$114.6M	$281.2M
YoY Change	-1.74%	-23.68%	26.72%
Operating Profit	$212.5M	$1.519B	$184.5M
YoY Change	15.18%	-1.19%	-0.81%
Interest Expense	-$58.40M	$248.3M	-$65.40M
YoY Change	-10.7%	21.12%	669.41%
% of Operating Profit	-27.48%	16.35%	-35.45%
Other Income/Expense, Net	$83.60M	$29.75M	$20.40M
YoY Change	309.8%	-12.3%	-16.05%
Pretax Income	$237.7M	$872.9M	$138.5M
YoY Change	71.62%	86.56%	-31.4%
Income Tax	$42.00M	$191.3M	$34.00M
% Of Pretax Income	17.67%	21.91%	24.55%
Net Earnings	$195.6M	$632.5M	$104.5M
YoY Change	87.28%	82.39%	-27.05%
Net Earnings / Revenue	14.14%	14.45%	7.99%
Basic Earnings Per Share	$0.86	$2.79	$0.46
Diluted Earnings Per Share	$0.85	$2.76	$0.46
COMMON SHARES
Basic Shares Outstanding	227.0M shares	226.7M shares	225.9M shares
Diluted Shares Outstanding	229.3M shares	229.0M shares	228.2M shares

Balance Sheet

Concept	2011 Q4	2011	2010 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$376.0M	$376.0M	$33.00M
YoY Change	1039.39%	1039.39%	-50.0%
Cash & Equivalents	$375.7M	$376.0M	$32.79M
Short-Term Investments
Other Short-Term Assets	$380.0M	$380.0M	$317.0M
YoY Change	19.87%	19.87%	35.47%
Inventory	$258.3M	$258.0M	$258.5M
Prepaid Expenses	$239.4M		$142.9M
Receivables	$462.8M	$463.0M	$252.5M
Other Receivables	$105.7M	$420.0M	$54.00M
Total Short-Term Assets	$1.898B	$1.898B	$1.115B
YoY Change	70.22%	70.22%	12.51%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.326B	$9.326B	$10.13B
YoY Change	-7.93%	-7.93%	65.39%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$182.0M	$182.0M	$93.51M
YoY Change	94.67%	93.62%	11.32%
Other Assets	$288.9M	$819.0M	$220.8M
YoY Change	30.82%	12.81%	-61.73%
Total Long-Term Assets	$10.63B	$10.63B	$10.96B
YoY Change	-2.99%	-2.99%	61.48%
TOTAL ASSETS
Total Short-Term Assets	$1.898B	$1.898B	$1.115B
Total Long-Term Assets	$10.63B	$10.63B	$10.96B
Total Assets	$12.53B	$12.53B	$12.07B
YoY Change	3.77%	3.77%	55.24%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$522.0M	$522.0M	$354.0M
YoY Change	47.45%	47.46%	31.12%
Accrued Expenses	$770.1M	$770.0M	$802.0M
YoY Change	-3.98%	-3.99%	30.83%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$484.0M
YoY Change	-100.0%	-100.0%	-7.46%
Long-Term Debt Due	-$11.76M	$21.00M	-$11.76M
YoY Change	0.0%	-16.0%	-126.13%
Total Short-Term Liabilities	$1.388B	$1.388B	$1.665B
YoY Change	-16.6%	-16.64%	12.56%
LONG-TERM LIABILITIES
Long-Term Debt	$3.122B	$3.177B	$3.122B
YoY Change	0.0%	-0.28%	638.12%
Other Long-Term Liabilities	$124.9M	$4.349B	$144.6M
YoY Change	-13.6%	1.52%	-96.24%
Total Long-Term Liabilities	$3.247B	$7.526B	$3.267B
YoY Change	-0.6%	0.75%	-23.53%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.388B	$1.388B	$1.665B
Total Long-Term Liabilities	$3.247B	$7.526B	$3.267B
Total Liabilities	$8.915B	$8.915B	$9.135B
YoY Change	-2.41%	-2.31%	52.5%
SHAREHOLDERS EQUITY
Retained Earnings	$2.185B		$1.681B
YoY Change	30.0%
Common Stock	$2.273M		$2.273M
YoY Change	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$9.346M		$42.66M
YoY Change	-78.09%
Treasury Stock Shares			1.127M shares
Shareholders Equity	$3.611B	$3.611B	$2.944B
YoY Change
Total Liabilities & Shareholders Equity	$12.53B	$12.53B	$12.07B
YoY Change	3.77%	3.77%	55.25%

Cashflow Statement

Concept	2011 Q4	2011	2010 Q4
OPERATING ACTIVITIES
Net Income	$195.6M	$632.5M	$104.5M
YoY Change	87.28%	82.39%	-27.05%
Depreciation, Depletion And Amortization	-$36.00M	$430.6M	$154.3M
YoY Change	-123.33%	-24.15%	35.71%
Cash From Operating Activities	$275.2M	$1.528B	$252.4M
YoY Change	9.03%	35.03%	-24.04%
INVESTING ACTIVITIES
Capital Expenditures	-$180.9M	$1.178B	-$332.1M
YoY Change	-45.53%	2.11%	43.77%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	-$166.3M	$748.0M	$43.40M
YoY Change	-483.18%	1149.87%	8580.0%
Cash From Investing Activities	-$347.2M	-$578.5M	-$288.7M
YoY Change	20.26%	-89.56%	25.3%
FINANCING ACTIVITIES
Cash Dividend Paid		$96.36M
YoY Change		12.22%
Common Stock Issuance & Retirement, Net		$0.00
YoY Change		-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-24.70M	-$606.1M	53.40M
YoY Change	-146.25%	-113.84%	-177.84%
NET CHANGE
Cash From Operating Activities	275.2M	$1.528B	252.4M
Cash From Investing Activities	-347.2M	-$578.5M	-288.7M
Cash From Financing Activities	-24.70M	-$606.1M	53.40M
Net Change In Cash	-96.70M	$342.9M	17.10M
YoY Change	-665.5%	-1145.14%	-48.65%
FREE CASH FLOW
Cash From Operating Activities	$275.2M	$1.528B	$252.4M
Capital Expenditures	-$180.9M	$1.178B	-$332.1M
Free Cash Flow	$456.1M	$349.2M	$584.5M
YoY Change	-21.97%	-1637.65%	3.76%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2010Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	354011000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	522003000	USD
CY2011Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	USD
CY2010Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	USD
CY2011Q4	us-gaap	Accounts Receivable From Securitization AccountsReceivableFromSecuritization	0	USD
CY2010Q4	us-gaap	Accounts Receivable From Securitization AccountsReceivableFromSecuritization	200000000	USD
CY2010Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	252530000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	462812000	USD
CY2010	us-gaap	Accretion Expense AccretionExpense	46200000	USD
CY2011	us-gaap	Accretion Expense AccretionExpense	48120000	USD
CY2011	us-gaap	Accretion Of Discount AccretionOfDiscount	56698000	USD
CY2010	us-gaap	Accretion Of Discount AccretionOfDiscount	-154406000	USD
CY2009	us-gaap	Accretion Of Discount AccretionOfDiscount	108508000	USD
CY2011Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	50869000	USD
CY2010Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	56839000	USD
CY2010Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	38474000	USD
CY2011Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	37947000	USD
CY2011Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	75633000	USD
CY2010Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	0	USD
CY2011Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	75633000	USD
CY2010Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	801991000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	770070000	USD
CY2010Q4	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	25933000	USD
CY2011Q4	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	20180000	USD
CY2011Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	65775000	USD
CY2010Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	58771000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4760903000	USD
CY2010Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4822107000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-874338000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-801554000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2234775000	USD
CY2010Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2178604000	USD
CY2009	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	920080000	USD
CY2010	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	4624236000	USD
CY2011	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	1382371000	USD
CY2011	us-gaap	Adjustment For Amortization AdjustmentForAmortization	7608000	USD
CY2010	us-gaap	Adjustment For Amortization AdjustmentForAmortization	4160000	USD
CY2009	us-gaap	Adjustment For Amortization AdjustmentForAmortization	3970000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	48842000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	49381000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	47593000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	15100000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	7329000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	2687000	USD
CY2011Q4	us-gaap	Advances For Gas Exploration Development And Production Amount AdvancesForGasExplorationDevelopmentAndProductionAmount	4065000	USD
CY2010Q4	us-gaap	Advances For Gas Exploration Development And Production Amount AdvancesForGasExplorationDevelopmentAndProductionAmount	3078000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	46076	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	32723	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	45550	USD
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1156018	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	815793	shares
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	742598	shares
CY2009	us-gaap	Asset Impairment Charges AssetImpairmentCharges	4211000	USD
CY2010	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1813000	USD
CY2010Q1	us-gaap	Asset Retirement Obligation AssetRetirementObligation	533177000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	650073000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	670856000	USD
CY2010	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	-45961000	USD
CY2011	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	-57584000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	62098000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-4621000	USD
CY2010	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	82742000	USD
CY2011Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	124051000	USD
CY2010Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	130978000	USD
CY2010Q4	us-gaap	Assets Assets	12070610000	USD
CY2011Q4	us-gaap	Assets Assets	12525700000	USD
CY2009Q4	us-gaap	Assets Assets	7775401000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	1897977000	USD
CY2010Q4	us-gaap	Assets Current AssetsCurrent	1115006000	USD
	us-gaap	Basic Earnings Per Share Pro Forma BasicEarningsPerShareProForma	1.60
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	465740000	USD
CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	14907000	USD
CY2010	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	65363000	USD
CY2009	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2011Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	95995000	USD
CY2010Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	88859000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	8932000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	55189000	USD
CY2010Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	57402000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	86150000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	13179000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	7444000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	8406000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	10037000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	11417000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	35667000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	22029000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	64121000	USD
CY2010Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	30251000	USD
CY2011Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	39854000	USD
CY2011Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	-773027000	USD
CY2010Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	-623575000	USD
CY2010Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	6322439000	USD
CY2011Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	5473338000	USD
CY2010Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	5698864000	USD
CY2011Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	4700311000	USD
CY2010Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	1615540000	USD
CY2011Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	1495772000	USD
CY2011Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	963494000	USD
CY2010Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	941772000	USD
CY2010Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	2206827000	USD
CY2011Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	1258455000	USD
CY2010Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	1558300000	USD
CY2011Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	1755617000	USD
CY2011Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	5480000	USD
CY2011Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	3309000	USD
CY2011Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	0	USD
CY2011Q4	us-gaap	Capitalized Exploratory Well Costs Thereafter CapitalizedExploratoryWellCostsThereafter	2171000	USD
CY2009	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	148907000	USD
CY2010	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	125715000	USD
CY2011	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	231536000	USD
CY2011Q2	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	59572000	USD
CY2011Q3	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	59871000	USD
CY2011Q1	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	36868000	USD
CY2011Q4	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	75225000	USD
CY2010Q4	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	29171000	USD
CY2010Q3	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	37269000	USD
CY2010Q2	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	28075000	USD
CY2010Q1	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	31200000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	375736000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	32794000	USD
CY2009Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65607000	USD
CY2011Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	32794000	USD
CY2008Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	138512000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65607000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	342942000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-32813000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-72905000	USD
CY2010	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.400
CY2011	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.425
CY2009	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.400
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	226162000	shares
CY2009Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	181086000	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	227056000	shares
CY2008Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	180550000	shares
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	2273000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	2273000	USD
CY2009	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	379378000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	130049000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	705281000	USD
CY2011	us-gaap	Cost Of Purchased Oil And Gas CostOfPurchasedOilAndGas	3831000	USD
CY2010	us-gaap	Cost Of Purchased Oil And Gas CostOfPurchasedOilAndGas	9736000	USD
CY2009	us-gaap	Cost Of Purchased Oil And Gas CostOfPurchasedOilAndGas	6442000	USD
CY2009	us-gaap	Costs And Expenses CostsAndExpenses	3833530000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	5329289000	USD
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	4768108000	USD
CY2009	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	30405000	USD
CY2011	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	6673000	USD
CY2010	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	1476470000	USD
CY2011	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	58731000	USD
CY2009	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	50705000	USD
CY2010	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	1922334000	USD
CY2009	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	181944000	USD
CY2011	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	463401000	USD
CY2010	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	472691000	USD
CY2009	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	46023000	USD
CY2011	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	131419000	USD
CY2010	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	58655000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	173912000	USD
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	134231000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	82031000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-3425000	USD
CY2009	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-1940000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	208467000	USD
CY2009	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	173773000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	92258000	USD
CY2009	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	41482000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	13652000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	34555000	USD
CY2011Q4	us-gaap	Debt Current DebtCurrent	20691000	USD
CY2010Q4	us-gaap	Debt Current DebtCurrent	24783000	USD
CY2011	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	-559132000	USD
CY2009	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	0	USD
CY2010	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	500376000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-35487000	USD
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	49672000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8463000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17029000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-53011000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	47430000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-17524000	USD
CY2009	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2242000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	8566000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1889598000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2023000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	648807000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	659017000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1960332000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1848582000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	174171000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	141083000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	484846000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	507724000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	57669000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	58428000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	129293000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	136211000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	141758000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	54998000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	103146000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	65309000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	24763000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	27918000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-62668000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-41016000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance Current DeferredTaxAssetsValuationAllowanceCurrent	-778000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	-61890000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	-41016000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-1199775000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-1301315000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Other Capitalized Costs DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts	-31284000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	-29209000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Other Capitalized Costs DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts	-31574000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	-98539000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-23717000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	-19170000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	-1046235000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	-1221362000	USD
CY2010Q4	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	2258000	USD
CY2011Q4	us-gaap	Defined Benefit Pension Plan Liabilities Current DefinedBenefitPensionPlanLiabilitiesCurrent	5713000	USD
CY2010Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	161173000	USD
CY2011Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	269069000	USD
CY2009	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	437417000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	618397000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	567663000	USD
CY2011	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We measure each derivative instrument at fair value and record it on the balance sheet as either an asset or liability. Changes in the fair value of the derivatives are recorded currently in earnings unless special hedge accounting criteria are met. For derivatives designated as fair value hedges, the changes in fair value of both the derivative instrument and the hedged item are recorded in earnings. For derivatives designated as cash flow hedges, the effective portions of changes in fair value of the derivative are reported in Other Comprehensive Income or Loss (OCI) and reclassified into earnings in the same period or periods which the forecasted transaction affects earnings. The ineffective portions of hedges are recognized in earnings in the current period. CONSOL Energy currently utilizes only cash flow hedges that are considered highly effective.</font></div><div style="line-height:120%;padding-top:12px;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">CONSOL Energy formally assesses both at inception of the hedge and on an ongoing basis whether each derivative is highly effective in offsetting changes in the fair values or the cash flows of the hedged item. If it is determined that a derivative is not highly effective as a hedge or if a derivative ceases to be a highly effective hedge, CONSOL Energy will discontinue hedge accounting prospectively.</font></div></div>
CY2011	us-gaap	Direct Operating Cost Royalty Expense DirectOperatingCostRoyaltyExpense	59331000	USD
CY2010	us-gaap	Direct Operating Cost Royalty Expense DirectOperatingCostRoyaltyExpense	53775000	USD
CY2009	us-gaap	Direct Operating Cost Royalty Expense DirectOperatingCostRoyaltyExpense	32376000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	-3812724000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	-1496668000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	-3130318000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	14804398000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	7975195000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	16723795000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts	-995569000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts	-1674829000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts	-2720243000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense	-1465075000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense	-2989435000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense	-3354444000	USD
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.76
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.95
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.60
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	4877499000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	2391019000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	5473545000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts	-5175563000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts	-3123532000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts	-5262635000	USD
CY2011	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	1747181000	USD
CY2010	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	1660821000	USD
CY2009	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	894351000	USD
CY2010	us-gaap	Dividends Cash DividendsCash	-85861000	USD
CY2009	us-gaap	Dividends Cash DividendsCash	-72292000	USD
CY2011	us-gaap	Dividends Cash DividendsCash	-96356000	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.61
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.99
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.86
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.281
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.234
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.197
CY2009	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.029
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.000
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.028
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.016
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.012
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.007
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.002
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.007
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.151
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.087
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depletion EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion	-0.116
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.008
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.018
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.008
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.010
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.002
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.003
CY2009	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.035
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.018
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.026
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.000
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.007
CY2011Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	36643	USD
CY2011	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition	1.66
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	17325	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	17473	USD
CY2009	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	12490	USD
CY2010Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	108694000	USD
CY2011Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	105378000	USD
CY2011	us-gaap	Entity Wide Revenue Major Customer Amount EntityWideRevenueMajorCustomerAmount	662109000	USD
CY2011Q4	us-gaap	Equity Method Investments EquityMethodInvestments	182036000	USD
CY2010Q4	us-gaap	Equity Method Investments EquityMethodInvestments	93509000	USD
CY2011Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	22406000	USD
CY2010Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	19624000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	15365000	USD
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3270000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	8281000	USD
CY2011	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	5108000	USD
CY2010	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	9614000	USD
CY2009	us-gaap	Exploration Abandonment And Impairment Expense ExplorationAbandonmentAndImpairmentExpense	8194000	USD
CY2010	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	326584000	USD
CY2009	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	124008000	USD
CY2011	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	324755000	USD
CY2009	us-gaap	Freight Costs FreightCosts	148907000	USD
CY2011	us-gaap	Freight Costs FreightCosts	231347000	USD
CY2010	us-gaap	Freight Costs FreightCosts	125544000	USD
CY2011Q1	us-gaap	Freight Costs FreightCosts	36679000	USD
CY2011Q3	us-gaap	Freight Costs FreightCosts	59871000	USD
CY2011Q4	us-gaap	Freight Costs FreightCosts	75225000	USD
CY2011Q2	us-gaap	Freight Costs FreightCosts	59572000	USD
CY2010Q2	us-gaap	Freight Costs FreightCosts	28075000	USD
CY2010Q4	us-gaap	Freight Costs FreightCosts	29000000	USD
CY2010Q1	us-gaap	Freight Costs FreightCosts	31200000	USD
CY2010Q3	us-gaap	Freight Costs FreightCosts	37269000	USD
CY2011	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2010	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2009	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	12450000	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	46497000	USD
CY2009	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	15121000	USD
CY2010	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	9908000	USD
CY2010	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	9908000	USD
CY2009	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	15121000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	46497000	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-16090000	USD
CY2009	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011Q4	us-gaap	Gas And Oil Acreage Developed Gross GasAndOilAcreageDevelopedGross	507949000
CY2011Q4	us-gaap	Gas And Oil Acreage Developed Net GasAndOilAcreageDevelopedNet	421874000
CY2011Q4	us-gaap	Gas And Oil Acreage Undeveloped Gross GasAndOilAcreageUndevelopedGross	146479000
CY2011Q4	us-gaap	Gas And Oil Acreage Undeveloped Net GasAndOilAcreageUndevelopedNet	124276000
CY2011Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	1642981000	USD
CY2009	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2010	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2011	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	115817000	USD
CY2009	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	27425000	USD
CY2010	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	11845000	USD
CY2011	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	0	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	467913000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	788345000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	787953000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.33
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	21428000	USD
CY2009	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15707000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	24663000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	155456000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	109287000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	221203000	USD
CY2011	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	155456000	USD
CY2010	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	109287000	USD
CY2009	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	221203000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2009	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2009	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-1256000	USD
CY2011	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	2257000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-22618000	USD
CY2009	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	-12707000	USD
CY2010	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	-5633000	USD
CY2011	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	-22209000	USD
CY2009	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	275921000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	275784000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	163770000	USD
CY2010	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-70812000	USD
CY2009	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-68787000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-91470000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6525000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	8755000	USD
CY2009	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6172000	USD
CY2010	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	4609000	USD
CY2009	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	27362000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	12022000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	14197000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	-1822000	USD
CY2009	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	-5502000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	-3424000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-5188000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	0	USD
CY2009	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	0	USD
CY2009	us-gaap	Income Taxes Paid IncomeTaxesPaid	131043000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	144405000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	118550000	USD
CY2011Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	0	USD
CY2010Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	32528000	USD
CY2009	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-84597000	USD
CY2011	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	83770000	USD
CY2010	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	96245000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	78839000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	144652000	USD
CY2009	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-70458000	USD
CY2009	us-gaap	Increase Decrease In Accounts Receivable From Securitization IncreaseDecreaseInAccountsReceivableFromSecuritization	115000000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable From Securitization IncreaseDecreaseInAccountsReceivableFromSecuritization	150000000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable From Securitization IncreaseDecreaseInAccountsReceivableFromSecuritization	-200000000	USD
CY2010	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-426870000	USD
CY2009	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-380639000	USD
CY2011	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	155619000	USD
CY2010	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-612114000	USD
CY2009	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	248639000	USD
CY2011	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	130746000	USD
CY2009	us-gaap	Interest Paid Net InterestPaidNet	26425000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	152155000	USD
CY2010Q4	us-gaap	Interest Payable Current InterestPayableCurrent	64695000	USD
CY2011Q4	us-gaap	Interest Payable Current InterestPayableCurrent	63577000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	380000	USD
CY2009	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	79787000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-48919000	USD
CY2011	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	30309000	USD
CY2010	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-15443000	USD
CY2009	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-45883000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	724000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-7237000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-17745000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-36014000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-15393000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-17286000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	80527000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	129230000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	84146000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	20974000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-4431000	USD
CY2009	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-10730000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2323230	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2117243	shares
CY2009	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2127893	shares
CY2009	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-11871000	USD
CY2010	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-13393000	USD
CY2011	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	-15547000	USD
CY2011	us-gaap	Interest Expense InterestExpense	248344000	USD
CY2009	us-gaap	Interest Expense InterestExpense	31419000	USD
CY2010	us-gaap	Interest Expense InterestExpense	205032000	USD
CY2011	us-gaap	Interest Expense Debt InterestExpenseDebt	264080000	USD
CY2009	us-gaap	Interest Expense Debt InterestExpenseDebt	39524000	USD
CY2010	us-gaap	Interest Expense Debt InterestExpenseDebt	213832000	USD
CY2009	us-gaap	Interest Expense Other InterestExpenseOther	3766000	USD
CY2010	us-gaap	Interest Expense Other InterestExpenseOther	4593000	USD
CY2011	us-gaap	Interest Expense Other InterestExpenseOther	-189000	USD
CY2009	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	5052000	USD
CY2010	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7642000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	8919000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	258134000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	258335000	USD
CY2010Q4	us-gaap	Inventory Net InventoryNet	258538000	USD
CY2011Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	109318000	USD
CY2010Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	99724000	USD
CY2011Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	182036000	USD
CY2010Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	93509000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	94137000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	111861000	USD
CY2009	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	77960000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	8914815000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	9134597000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12070610000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12525700000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1388397000	USD
CY2010Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1664785000	USD
CY2011Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	6820000	USD
CY2010Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	41235000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	200000000	USD
CY2011	us-gaap	Line Of Credit Facility Expiration Date LineOfCreditFacilityExpirationDate	April 30, 2012
CY2009	us-gaap	Litigation Settlement Gross LitigationSettlementGross	5500000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	3133993000	USD
CY2010Q4	us-gaap	Long Term Debt LongTermDebt	3145365000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3177423000	USD
CY2010Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3186138000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	20691000	USD
CY2010Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	24783000	USD
CY2010Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-16629000	USD
CY2010Q4	us-gaap	Minority Interest MinorityInterest	-8464000	USD
CY2011Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-11759000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	3110668000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	11759000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2555000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2732000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3004000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3275000	USD
CY2010Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3128736000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3122234000	USD
CY2011Q4	us-gaap	Loss Contingency Range Of Possible Loss Portion Not Accrued LossContingencyRangeOfPossibleLossPortionNotAccrued	1387000000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	0	USD
CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
CY2009	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-2500000	USD
CY2010	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-1009060000	USD
CY2009	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	157000	USD
CY2010	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	2178000	USD
CY2010	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-4094000	USD
CY2009	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-4370000	USD
CY2011	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	8464000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-606140000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-288015000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	4379849000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	4379849000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-845341000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-578524000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5543974000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5543974000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1131312000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1060451000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1527606000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1131312000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	346781000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	632497000	USD
CY2009	us-gaap	Net Income Loss NetIncomeLoss	539717000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	77384000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	195635000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	167329000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	192149000	USD
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	66668000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	75383000	USD
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	104461000	USD
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	100269000	USD
CY2009	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-27425000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-11845000	USD
CY2011	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-339098000	USD
CY2010	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	721997000	USD
CY2009	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-457138000	USD
CY2011	us-gaap	Noncash Project Abandonment Costs NoncashProjectAbandonmentCosts	75281000	USD
CY2010Q4	us-gaap	Notes And Loans Payable Current NotesAndLoansPayableCurrent	284000000	USD
CY2011Q4	us-gaap	Notes And Loans Payable Current NotesAndLoansPayableCurrent	0	USD
CY2011Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	314950000	USD
CY2010Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	408000	USD
CY2011Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	300492000	USD
CY2010Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	6866000	USD
CY2010Q4	us-gaap	Notes Receivable Related Parties Current NotesReceivableRelatedPartiesCurrent	408000	USD
CY2011Q4	us-gaap	Notes Receivable Related Parties Current NotesReceivableRelatedPartiesCurrent	314950000	USD
CY2011Q4	us-gaap	Notional Amount Of Cash Flow Hedge Instruments NotionalAmountOfCashFlowHedgeInstruments	164.1	USD
CY2011Q4	us-gaap	Oil And Gas Delivery Commitments And Contracts Remaining Contractual Volume OilAndGasDeliveryCommitmentsAndContractsRemainingContractualVolume	89.8
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	485730000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	88502000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	37769000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	57418000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	69702000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	82568000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	149771000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	128247000	USD
CY2010Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	139079000	USD
CY2010Q4	us-gaap	Other Assets OtherAssets	826353000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	1301307000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	288907000	USD
CY2010Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	220841000	USD
CY2011	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	105693000	USD
CY2010	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-25291000	USD
CY2009	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-53132000	USD
CY2011	us-gaap	Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	32813000	USD
CY2009	us-gaap	Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	134549000	USD
CY2010	us-gaap	Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	221228000	USD
CY2010	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	18026000	USD
CY2011	us-gaap	Other Income OtherIncome	153620000	USD
CY2009	us-gaap	Other Income OtherIncome	113186000	USD
CY2010	us-gaap	Other Income OtherIncome	97507000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	124936000	USD
CY2010Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	144610000	USD
CY2009	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	35780000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	33923000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32472000	USD
CY2010Q4	us-gaap	Other Postretirement Benefits Payable Current And Noncurrent OtherPostretirementBenefitsPayableCurrentAndNoncurrent	179809000	USD
CY2011Q4	us-gaap	Other Postretirement Benefits Payable Current And Noncurrent OtherPostretirementBenefitsPayableCurrentAndNoncurrent	182529000	USD
CY2010Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	3077390000	USD
CY2011Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	3059671000	USD
CY2011Q4	us-gaap	Other Receivables OtherReceivables	105708000	USD
CY2010Q4	us-gaap	Other Receivables OtherReceivables	21181000	USD
CY2009	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-4855000	USD
CY2010	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-11452000	USD
CY2011	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-55876000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	747971000	USD
CY2009	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-69884000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	59844000	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	-15686000	USD
CY2010	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	-84248000	USD
CY2010	us-gaap	Payments Of Dividends PaymentsOfDividends	85861000	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	96356000	USD
CY2009	us-gaap	Payments Of Dividends PaymentsOfDividends	72292000	USD
CY2010	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	84248000	USD
CY2009	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	15686000	USD
CY2011Q4	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	14907000	USD
CY2010	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	991034000	USD
CY2011	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	0	USD
CY2009	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	0	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2009	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3470212000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1154024000	USD
CY2009	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	920080000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1382371000	USD
CY2010	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	-991034000	USD
CY2010Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	239353000	USD
CY2010Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	142856000	USD
CY2010Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	389379000	USD
CY2011Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	393340000	USD
CY2010	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	295142000	USD
CY2009	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	181944000	USD
CY2011	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	463401000	USD
CY2011Q4	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	93298000	USD
CY2010	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	150000000	USD
CY2010	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1828862000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2009	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2750000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	250000000	USD
CY2009	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	-200000000	USD
CY2010	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	150000000	USD
CY2009	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	-115000000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	5687000	USD
CY2009	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-15873000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	9946000	USD
CY2009	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-84850000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-188850000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-284000000	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	747971000	USD
CY2009	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	69884000	USD
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	59844000	USD
CY2009	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	2547000	USD
CY2011	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	9033000	USD
CY2010	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	5993000	USD
CY2011Q4	us-gaap	Productive Gas Wells Number Of Wells Gross ProductiveGasWellsNumberOfWellsGross	14743000
CY2011Q4	us-gaap	Productive Gas Wells Number Of Wells Net ProductiveGasWellsNumberOfWellsNet	12725000
CY2009	us-gaap	Profit Loss ProfitLoss	567142000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	358626000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	632497000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	167329000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	77384000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	192149000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	195635000	USD
CY2010Q4	us-gaap	Profit Loss ProfitLoss	104461000	USD
CY2010Q1	us-gaap	Profit Loss ProfitLoss	107882000	USD
CY2010Q3	us-gaap	Profit Loss ProfitLoss	75383000	USD
CY2010Q2	us-gaap	Profit Loss ProfitLoss	70900000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	14087319000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	14951358000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10129251000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9326416000	USD
CY2009Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	6124290000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	659736000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	662315000	USD
CY2011Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	540817000	USD
CY2010Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	536603000	USD
CY2009	us-gaap	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	406756000
CY2010	us-gaap	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	621270000
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	517178000
CY2009Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	1911391000
CY2011Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	3480027000
CY2008Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	1422046000
CY2010Q4	us-gaap	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	3731597000
CY2009	us-gaap	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	94415000
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	153504000
CY2010	us-gaap	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	127875000
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace	0
CY2010	us-gaap	Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace	946834000
CY2009	us-gaap	Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace	0
CY2010	us-gaap	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	379977000
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	-83813000
CY2009	us-gaap	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	177004000
CY2010	us-gaap	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	0
CY2009	us-gaap	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	0
CY2011	us-gaap	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	-531431000
CY2011Q4	us-gaap	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	2135805000
CY2008Q4	us-gaap	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	783290000
CY2009Q4	us-gaap	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	1040257000
CY2010Q4	us-gaap	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	1931272000
CY2011Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1542837000	USD
CY2010Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1662605000	USD
CY2008Q4	us-gaap	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	638756000
CY2009Q4	us-gaap	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	871134000
CY2010Q4	us-gaap	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	1800325000
CY2011Q4	us-gaap	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	1344222000
CY2010	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	93482000	USD
CY2011	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	189000	USD
CY2009	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	52332000	USD
CY2009	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	0	USD
CY2010	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	0	USD
CY2011	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	0	USD
CY2011	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	11627000	USD
CY2009	us-gaap	Revenue From Purchased Oil And Gas RevenueFromPurchasedOilAndGas	7040000	USD
CY2009	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	19190000	USD
CY2010	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	11412000	USD
CY2011	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	-200000000	USD
CY2009	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	115000000	USD
CY2010Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	20291000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	22148000	USD
CY2011	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	206821000	USD
CY2010	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	190424000	USD
CY2009	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	107251000	USD
CY2011	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	605854000	USD
CY2009	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	342883000	USD
CY2010	us-gaap	Results Of Operations Expense From Oil And Gas Producing Activities ResultsOfOperationsExpenseFromOilAndGasProducingActivities	533022000	USD
CY2009	us-gaap	Results Of Operations Expense Other ResultsOfOperationsExpenseOther	45795000	USD
CY2010	us-gaap	Results Of Operations Expense Other ResultsOfOperationsExpenseOther	63941000	USD
CY2011	us-gaap	Results Of Operations Expense Other ResultsOfOperationsExpenseOther	62302000	USD
CY2011	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	217186000	USD
CY2010	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	286883000	USD
CY2009	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	335706000	USD
CY2009	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	125890000	USD
CY2010	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	117278000	USD
CY2011	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	86961000	USD
CY2010	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	169605000	USD
CY2009	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	209816000	USD
CY2011	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	130225000	USD
CY2011	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	131184000	USD
CY2010	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	87155000	USD
CY2009	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	55285000	USD
CY2010	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	819905000	USD
CY2009	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	678589000	USD
CY2011	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	823040000	USD
CY2010	us-gaap	Results Of Operations Sales Revenue To Unaffiliated Enterprises ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises	745809000	USD
CY2011	us-gaap	Results Of Operations Sales Revenue To Unaffiliated Enterprises ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises	751767000	USD
CY2009	us-gaap	Results Of Operations Sales Revenue To Unaffiliated Enterprises ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises	630598000	USD
CY2011	us-gaap	Results Of Operations Transportation Costs ResultsOfOperationsTransportationCosts	142339000	USD
CY2010	us-gaap	Results Of Operations Transportation Costs ResultsOfOperationsTransportationCosts	127927000	USD
CY2009	us-gaap	Results Of Operations Transportation Costs ResultsOfOperationsTransportationCosts	95687000	USD
CY2010Q4	us-gaap	Retail Related Inventory Merchandise RetailRelatedInventoryMerchandise	50120000	USD
CY2011Q4	us-gaap	Retail Related Inventory Merchandise RetailRelatedInventoryMerchandise	43639000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2184737000	USD
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1680597000	USD
CY2011Q4	us-gaap	Retained Interest Fair Value Disclosure RetainedInterestFairValueDisclosure	192700000	USD
CY2011	us-gaap	Revenue From Purchased Oil And Gas RevenueFromPurchasedOilAndGas	4344000	USD
CY2010	us-gaap	Revenue From Purchased Oil And Gas RevenueFromPurchasedOilAndGas	11227000	USD
CY2011	us-gaap	Revenue Mineral Sales RevenueMineralSales	5660813000	USD
CY2010	us-gaap	Revenue Mineral Sales RevenueMineralSales	4938703000	USD
CY2009	us-gaap	Revenue Mineral Sales RevenueMineralSales	4311791000	USD
CY2011	us-gaap	Revenue Recognition Services Royalty Fees RevenueRecognitionServicesRoyaltyFees	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;padding-top:18px;text-align:justify;padding-left:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Royalty Recognition: </font></div><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Royalty expenses for coal rights are included in Cost of Goods Sold and Other Operating Charges when the related revenue for the coal sale is recognized. Royalty expenses for gas rights are included in Gas Royalty Interest Costs when the related revenue for the gas sale is recognized. These royalty expenses are paid in cash in accordance with the terms of each agreement. Revenues for coal and gas sold related to production under royalty contracts, versus owned by CONSOL Energy, are recorded on a gross basis.</font></div></div>
CY2010	us-gaap	Revenues Revenues	5236021000	USD
CY2011	us-gaap	Revenues Revenues	6117242000	USD
CY2009	us-gaap	Revenues Revenues	4621875000	USD
CY2009	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2010	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2011	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2009	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	189583000	USD
CY2010	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	414704000	USD
CY2011	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-83580000	USD
CY2009	us-gaap	Royalty Revenue RoyaltyRevenue	17249000	USD
CY2011	us-gaap	Royalty Revenue RoyaltyRevenue	18491000	USD
CY2010	us-gaap	Royalty Revenue RoyaltyRevenue	14688000	USD
CY2011	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-217186000	USD
CY2010	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-286883000	USD
CY2009	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-335706000	USD
CY2011Q4	us-gaap	Sales Revenue Net SalesRevenueNet	1383431000	USD
CY2011Q2	us-gaap	Sales Revenue Net SalesRevenueNet	1503435000	USD
CY2011Q3	us-gaap	Sales Revenue Net SalesRevenueNet	1439930000	USD
CY2011Q1	us-gaap	Sales Revenue Net SalesRevenueNet	1405293000	USD
CY2010Q4	us-gaap	Sales Revenue Net SalesRevenueNet	1307769000	USD
CY2010Q1	us-gaap	Sales Revenue Net SalesRevenueNet	1186869000	USD
CY2010Q3	us-gaap	Sales Revenue Net SalesRevenueNet	1282154000	USD
CY2010Q2	us-gaap	Sales Revenue Net SalesRevenueNet	1236007000	USD
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	9059000	USD
CY2009	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	11796000	USD
CY2010	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	9796000	USD
CY2009	us-gaap	Share Based Compensation ShareBasedCompensation	39032000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0082
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	23800000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3137524	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	14.48
CY2011Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	0	USD
CY2010Q4	us-gaap	Secured Debt Current SecuredDebtCurrent	200000000	USD
CY2010Q4	us-gaap	Securitized Assets And Any Other Financial Assets Managed Together Principal Amount Outstanding SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding	200000000	USD
CY2011Q4	us-gaap	Securitized Assets And Any Other Financial Assets Managed Together Principal Amount Outstanding SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding	192700000	USD
CY2009	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	4508689000	USD
CY2010	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	5138514000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0161
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0145
CY2011	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	5963622000	USD
CY2009	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	130704000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	175576000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	150210000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	47593000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	48842000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0140
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0080
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	4.10
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	4.04
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	4.26
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.7560
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5510
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5900
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0188
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	21.97
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.47
CY2010Q4	us-gaap	Short Term Non Bank Loans And Notes Payable ShortTermNonBankLoansAndNotesPayable	284000000	USD
CY2010	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-12060000	USD
CY2009	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-3282000	USD
CY2011	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	154137000	USD
CY2011Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1747181000	USD
CY2009Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	894351000	USD
CY2010Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1660821000	USD
CY2008Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1218434000	USD
CY2010	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	44275000	shares
CY2009	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2011	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2009	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	536000	shares
CY2010	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	801000	shares
CY2011	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	894000	shares
CY2009	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	111049000	USD
CY2011	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	212362000	USD
CY2011	cnx	Black Lung Excise Tax Refund BlackLungExciseTaxRefund	0	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1828862000	USD
CY2009	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	790000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	355000	USD
CY2009	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-5598000	USD
CY2011	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1312000	USD
CY2010	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-13588000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	3610885000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	2944477000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3610885000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2936013000	USD
CY2008Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1674346000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2024479000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3891000	USD
CY2010	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	126135000	USD
CY2011	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	344460000	USD
CY2010	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	328458000	USD
CY2009	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	289941000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-3096000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	2436000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	2409000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-3200000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-17362000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	16802000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	9346000	USD
CY2010Q4	us-gaap	Treasury Stock Value TreasuryStockValue	42659000	USD
CY2011Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	1258027000	USD
CY2010Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	2206399000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	91349000	USD
CY2010Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	78811000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	37586000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-260000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-36401000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	5373000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	10774000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	15998000	USD
CY2011	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"></font></div><div style="line-height:120%;padding-top:18px;text-align:justify;padding-left:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates: </font></div><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and various disclosures. Actual results could differ from those estimates. The most significant estimates included in the preparation of the financial statements are related to business combinations, other postretirement benefits, coal workers' pneumoconiosis, workers' compensation, salary retirement benefits, stock-based compensation, asset retirement obligations, deferred income tax assets and liabilities, contingencies, and coal and gas reserve values.</font></div></div>
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	182821136	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	217037804	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229003599	shares
CY2011Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229314370	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229163537	shares
CY2011Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	228814838	shares
CY2011Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229138024	shares
CY2010Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	228169569	shares
CY2010Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	184348982	shares
CY2010Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	228081103	shares
CY2010Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	228092299	shares
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	180693243	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	214920561	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	226680369	shares
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	226971597	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	226744011	shares
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	226350594	shares
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	226647752	shares
CY2010	cnx	Asset Retirement Obligation Other Change AssetRetirementObligationOtherChange	-7400000	USD
CY2011	cnx	Asset Retirement Obligation Other Change AssetRetirementObligationOtherChange	-6698000	USD
CY2010	cnx	Black Lung Excise Tax Refund BlackLungExciseTaxRefund	0	USD
CY2009	cnx	Black Lung Excise Tax Refund BlackLungExciseTaxRefund	728000	USD
CY2010Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	225715539	shares
CY2010Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	225781539	shares
CY2011Q4	cnx	Accounts Receivablesecuritized AccountsReceivablesecuritized	0	USD
CY2010Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	181726480	shares
CY2010Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	225854413	shares
CY2010Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	27754000	USD
CY2011Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	24837000	USD
CY2011Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	151034000	USD
CY2010Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	148314000	USD
CY2010Q4	cnx	Accounts Receivablesecuritized AccountsReceivablesecuritized	200000000	USD
CY2010Q4	cnx	Coal And Other Plant And Equipment CoalAndOtherPlantAndEquipment	5100085000	USD
CY2011Q4	cnx	Coal And Other Plant And Equipment CoalAndOtherPlantAndEquipment	5160759000	USD
CY2010Q4	cnx	Coal Properties And Surface Lands CoalPropertiesAndSurfaceLands	1292701000	USD
CY2011Q4	cnx	Coal Properties And Surface Lands CoalPropertiesAndSurfaceLands	1340757000	USD
CY2009	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	2757052000	USD
CY2011	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	3501189000	USD
CY2010	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	3262327000	USD
CY2011Q1	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	831192000	USD
CY2011Q4	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	894543000	USD
CY2011Q3	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	895075000	USD
CY2011Q2	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	943541000	USD
CY2010Q4	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	842273000	USD
CY2010Q2	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	831638000	USD
CY2010Q3	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	870560000	USD
CY2010Q1	cnx	Cost Of Goods Sold And Other Operating Charges CostOfGoodsSoldAndOtherOperatingCharges	781367000	USD
CY2010Q4	cnx	Drilling Cost DrillingCost	1116884000	USD
CY2011Q4	cnx	Drilling Cost DrillingCost	1277678000	USD
CY2011	cnx	Eerp Reimbursement EerpReimbursement	7973	USD
CY2009	cnx	Financing Related Fees FinancingRelatedFees	2990000	USD
CY2011	cnx	Financing Related Fees FinancingRelatedFees	1986000	USD
	cnx	Financing Related Fees FinancingRelatedFees	2676000	USD
CY2011Q4	cnx	Gas And Oil Acreage Unproved Net GasAndOilAcreageUnprovedNet	4040598000
CY2010Q4	cnx	Gas Gathering Systems Net GasGatheringSystemsNet	941772000	USD
CY2011Q4	cnx	Gas Gathering Systems Net GasGatheringSystemsNet	963494000	USD
CY2011Q4	cnx	Gas Well Closing Liability Current GasWellClosingLiabilityCurrent	24660000	USD
CY2010Q4	cnx	Gas Well Closing Liability Current GasWellClosingLiabilityCurrent	27919000	USD
CY2011Q4	cnx	Gas Wells And Related Equipment GasWellsAndRelatedEquipment	408814000	USD
CY2010Q4	cnx	Gas Wells And Related Equipment GasWellsAndRelatedEquipment	367448000	USD
CY2011Q4	cnx	Mine Reclamation Liability Noncurrent MineReclamationLiabilityNoncurrent	39969000	USD
CY2010Q4	cnx	Mine Reclamation Liability Noncurrent MineReclamationLiabilityNoncurrent	53839000	USD
CY2011Q4	cnx	Other Gas Assets OtherGasAssets	79816000	USD
CY2010Q4	cnx	Other Gas Assets OtherGasAssets	84571000	USD
CY2011Q4	cnx	Letters Of Credit LettersOfCredit	200000000	USD
CY2010Q4	cnx	Long Term Disability Current LongTermDisabilityCurrent	6126000	USD
CY2011Q4	cnx	Long Term Disability Current LongTermDisabilityCurrent	6294000	USD
CY2011Q4	cnx	Mine Closing Liability Current MineClosingLiabilityCurrent	34501000	USD
CY2010Q4	cnx	Mine Closing Liability Current MineClosingLiabilityCurrent	38433000	USD
CY2011Q4	cnx	Mine Closing Liability Noncurrent MineClosingLiabilityNoncurrent	406712000	USD
CY2010Q4	cnx	Mine Closing Liability Noncurrent MineClosingLiabilityNoncurrent	393754000	USD
CY2011Q4	cnx	Mine Development MineDevelopment	457179000	USD
CY2010Q4	cnx	Mine Development MineDevelopment	587518000	USD
CY2009	cnx	Payments On Long Term Notes Including Redemption Premium PaymentsOnLongTermNotesIncludingRedemptionPremium	0	USD
CY2011	cnx	Payments On Long Term Notes Including Redemption Premium PaymentsOnLongTermNotesIncludingRedemptionPremium	265785000	USD
CY2010	cnx	Payments On Long Term Notes Including Redemption Premium PaymentsOnLongTermNotesIncludingRedemptionPremium	0	USD
CY2010Q4	cnx	Pneumoconiosis Benefits PneumoconiosisBenefits	173616000	USD
CY2011Q4	cnx	Pneumoconiosis Benefits PneumoconiosisBenefits	173553000	USD
CY2011Q4	cnx	Pneumoconiosis Liability Current PneumoconiosisLiabilityCurrent	10027000	USD
CY2010Q4	cnx	Pneumoconiosis Liability Current PneumoconiosisLiabilityCurrent	10915000	USD
CY2009	cnx	Right Of Way Issuance RightOfWayIssuance	31000	USD
CY2010	cnx	Right Of Way Issuance RightOfWayIssuance	122000	USD
CY2011	cnx	Right Of Way Issuance RightOfWayIssuance	13519000	USD
CY2009	cnx	Royalty Interest Gas Revenue RoyaltyInterestGasRevenue	40951000	USD
CY2011	cnx	Royalty Interest Gas Revenue RoyaltyInterestGasRevenue	66929000	USD
CY2010	cnx	Royalty Interest Gas Revenue RoyaltyInterestGasRevenue	62869000	USD
CY2009	cnx	Share Based Comp Expected Forfeiture Rate ShareBasedCompExpectedForfeitureRate	0.0200	USD
CY2011Q4	cnx	Subsidence Liability SubsidenceLiability	108094000	USD
CY2010Q4	cnx	Subsidence Liability SubsidenceLiability	83751000	USD
CY2011	cnx	Share Based Comp Expected Forfeiture Rate ShareBasedCompExpectedForfeitureRate	0.0200	USD
CY2010	cnx	Share Based Comp Expected Forfeiture Rate ShareBasedCompExpectedForfeitureRate	0.0200	USD
CY2010Q4	cnx	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	4283674000	USD
CY2011Q4	cnx	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	4348995000	USD
CY2011Q4	cnx	Total Other Assets TotalOtherAssets	1301307000	USD
CY2010Q4	cnx	Total Other Assets TotalOtherAssets	826353000	USD
CY2010	cnx	Treasury Rate Lock Net Of Tax TreasuryRateLockNetOfTax	-84000	USD
CY2011	cnx	Treasury Rate Lock Net Of Tax TreasuryRateLockNetOfTax	-96000	USD
CY2009	cnx	Treasury Rate Lock Net Of Tax TreasuryRateLockNetOfTax	-83000	USD
CY2011	cnx	Unproved Acreage Gross UnprovedAcreageGross	5035749000
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2011-12-31
CY2011	dei	Document Type DocumentType	10-K
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0001070412
CY2012Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	227093353	shares
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011Q2	dei	Entity Public Float EntityPublicFloat	10963933121	USD
CY2011	dei	Entity Registrant Name EntityRegistrantName	CONSOL Energy Inc
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001070412-12-000008-index-headers.html	Edgar Link	pending
0001070412-12-000008-index.html	Edgar Link	pending
0001070412-12-000008.txt	Edgar Link	pending
0001070412-12-000008-xbrl.zip	Edgar Link	pending
a20120202consolcoalandgasops.jpg	Edgar Link	pending
cnx-123111x10k.htm	Edgar Link	pending
cnx-123111xex311.htm	Edgar Link	pending
cnx-123111xex312.htm	Edgar Link	pending
cnx-20111231.xml	Edgar Link	completed
cnx-20111231.xsd	Edgar Link	pending
cnx-20111231_cal.xml	Edgar Link	unprocessable
cnx-20111231_def.xml	Edgar Link	unprocessable
cnx-20111231_lab.xml	Edgar Link	unprocessable
cnx-20111231_pre.xml	Edgar Link	unprocessable
cnx123111-ex321.htm	Edgar Link	pending
cnx123111-ex322.htm	Edgar Link	pending
ex99engineersauditletter.htm	Edgar Link	pending
exhibit1032.htm	Edgar Link	pending
exhibit12earningstofixedch.htm	Edgar Link	pending
exhibit21subsidiaries.htm	Edgar Link	pending
exhibit231ernstyoungconsent.htm	Edgar Link	pending
exhibit232reserveengineers.htm	Edgar Link	pending
exhibit95mshadisclosure.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
metcoalsalesgraph.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
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R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
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R114.htm	Edgar Link	pending
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R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
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$CNX
CNX Resources Corp Stock $cnx

2011 Q4 Form 10-K Financial Statement

#000107041212000008 Filed on February 10, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CNX CNX Resources Corp Stock $cnx

2011 Q4 Form 10-K Financial Statement

#000107041212000008 Filed on February 10, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CNX
CNX Resources Corp Stock $cnx