$CRK
COMSTOCK RESOURCES INC Stock $crk

$crk Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000156459014000379 Filed on February 27, 2014

Income Statement

Concept	2013 Q4	2013 Q3	2013 Q2
Revenue	$105.9M	$111.6M	$107.9M
YoY Change	13.14%	14.92%	-2.5%
Cost Of Revenue	$22.30M	$21.60M	$21.20M
YoY Change	8.25%	-2.26%	-4.5%
Gross Profit	$83.60M	$90.00M	$86.60M
YoY Change	14.52%	20.0%	26.98%
Gross Profit Margin	78.94%	80.65%	80.26%
Selling, General & Admin	$8.800M	$8.200M	$9.100M
YoY Change	12.82%	1.23%	1.11%
% of Gross Profit	10.53%	9.11%	10.51%
Research & Development	$18.10M	$3.000M	$9.800M
YoY Change	-69.17%	114.29%
% of Gross Profit	21.65%	3.33%	11.32%
Depreciation & Amortization	$81.10M	$85.76M	$85.24M
YoY Change	-9.28%	-6.31%	-0.5%
% of Gross Profit	97.01%	95.29%	98.43%
Operating Expenses	$108.0M	$120.7M	$125.9M
YoY Change	-30.68%	-4.2%	3.03%
Operating Profit	-$24.39M	-$9.086M	-$18.00M
YoY Change	-76.28%	-68.49%	56.03%
Interest Expense	-$14.00M	-$27.90M	$19.24M
YoY Change	2.94%	-279.69%	44.11%
% of Operating Profit
Other Income/Expense, Net	$200.0K	$400.0K	-$15.52M
YoY Change	-33.33%	-101.72%	-163.49%
Pretax Income	-$56.00M	-$36.60M	-$33.53M
YoY Change	-51.81%	-2.57%	-359.72%
Income Tax	-$19.40M	-$12.60M	-$12.00M
% Of Pretax Income
Net Earnings	-$37.50M	-$24.03M	$129.7M
YoY Change	-52.02%	-21.07%	1710.26%
Net Earnings / Revenue	-35.41%	-21.54%	120.21%
Basic Earnings Per Share	-$0.82	-$0.52	$2.68
Diluted Earnings Per Share	-$0.82	-$0.52	$2.68
COMMON SHARES
Basic Shares Outstanding		46.57M	46.75M
Diluted Shares Outstanding		46.57M	46.75M

Balance Sheet

Concept	2013 Q4	2013 Q3	2013 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.000M	$228.4M	$263.7M
YoY Change	-82.14%	1197.73%	1310.16%
Cash & Equivalents	$2.967M	$228.4M	$263.7M
Short-Term Investments		$0.00	$0.00
Other Short-Term Assets	$1.796M	$7.300M	$5.143M
YoY Change	-50.35%	-4.67%	-79.59%
Inventory	$1.400M
Prepaid Expenses
Receivables	$35.87M	$89.50M	$39.06M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$57.13M	$325.2M	$334.5M
YoY Change	-28.49%	269.42%	294.46%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.067B	$1.937B	$1.910B
YoY Change	5.52%	-23.93%	-25.02%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$15.53M	$15.40M	$17.91M
YoY Change	-22.14%	-26.49%	-36.05%
Total Long-Term Assets	$2.082B	$1.952B	$1.928B
YoY Change	-16.37%	-24.03%	-25.15%
TOTAL ASSETS
Total Short-Term Assets	$57.13M	$325.2M	$334.5M
Total Long-Term Assets	$2.082B	$1.952B	$1.928B
Total Assets	$2.139B	$2.277B	$2.262B
YoY Change	-16.75%	-14.31%	-14.96%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$101.9M	$120.2M	$82.68M
YoY Change	50.26%	22.06%
Accrued Expenses	$91.30M	$60.70M	$38.21M
YoY Change	146.74%	-36.5%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$195.6M
YoY Change
Total Short-Term Liabilities	$195.0M	$378.6M	$122.1M
YoY Change	35.96%	89.22%	-30.89%
LONG-TERM LIABILITIES
Long-Term Debt	$798.7M	$688.3M	$883.3M
YoY Change	-39.69%	-44.44%	-27.79%
Other Long-Term Liabilities	$2.138M	$19.30M	$2.202M
YoY Change	-5.94%	738.77%	-86.65%
Total Long-Term Liabilities	$800.8M	$707.6M	$885.5M
YoY Change	-39.63%	-42.99%	-28.57%
TOTAL LIABILITIES
Total Short-Term Liabilities	$195.0M	$378.6M	$122.1M
Total Long-Term Liabilities	$800.8M	$707.6M	$885.5M
Total Liabilities	$1.187B	$1.285B	$1.234B
YoY Change	-27.44%	-21.94%	-23.97%
SHAREHOLDERS EQUITY
Retained Earnings	$447.3M		$520.8M
YoY Change	5.43%
Common Stock	$504.7M		$507.5M
YoY Change	-0.03%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$952.0M	$992.2M	$1.028B
YoY Change
Total Liabilities & Shareholders Equity	$2.139B	$2.277B	$2.262B
YoY Change	-16.75%	-14.31%	-14.96%

Cashflow Statement

Concept	2013 Q4	2013 Q3	2013 Q2
OPERATING ACTIVITIES
Net Income	-$37.50M	-$24.03M	$129.7M
YoY Change	-52.02%	-21.07%	1710.26%
Depreciation, Depletion And Amortization	$81.10M	$85.76M	$85.24M
YoY Change	-9.28%	-6.31%	-0.5%
Cash From Operating Activities	-$666.9M	$820.2M	$10.60M
YoY Change	-512.94%	-2090.78%	21.84%
INVESTING ACTIVITIES
Capital Expenditures	-$272.9M	-$117.6M	-$70.70M
YoY Change	1.3%	95.67%	-39.57%
Acquisitions
YoY Change
Other Investing Activities	$823.4M	-$722.9M	$775.7M
YoY Change	3220.16%	-944.51%	685.12%
Cash From Investing Activities	$550.5M	-$840.3M	$704.9M
YoY Change	-325.06%	-3395.29%	-3973.08%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$9.232M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-108.9M	-15.20M	-458.7M
YoY Change	-228.12%	-202.7%	-5085.87%
NET CHANGE
Cash From Operating Activities	-666.9M	820.2M	10.60M
Cash From Investing Activities	550.5M	-840.3M	704.9M
Cash From Financing Activities	-108.9M	-15.20M	-458.7M
Net Change In Cash	-225.3M	-35.30M	256.8M
YoY Change	-11957.89%	3822.22%	-85700.0%
FREE CASH FLOW
Cash From Operating Activities	-$666.9M	$820.2M	$10.60M
Capital Expenditures	-$272.9M	-$117.6M	-$70.70M
Free Cash Flow	-$394.0M	$937.8M	$81.30M
YoY Change	-191.44%	4861.9%	-35.32%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013Q2	dei	Entity Public Float EntityPublicFloat	705700000
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	47837224
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4471000
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	34673000
CY2012Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	5608000
CY2013	dei	Entity Registrant Name EntityRegistrantName	COMSTOCK RESOURCES INC
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Trading Symbol TradingSymbol	CRK
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000023194
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013Q4	us-gaap	Assets Current AssetsCurrent	57134000
CY2012Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	3373695000
CY2013	dei	Document Type DocumentType	10-K
CY2013Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	3781313000
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1796000
CY2012Q4	us-gaap	Assets Current AssetsCurrent	79900000
CY2012Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	12312000
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	7568000
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	11651000
CY2013Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	970000
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3617000
CY2012Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	18628000
CY2013Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	18373000
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1546487000
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1867301000
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1958687000
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2066735000
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Noncurrent AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	511366000
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	19944000
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	15529000
CY2012Q4	us-gaap	Assets Assets	2569897000
CY2013Q4	us-gaap	Assets Assets	2139398000
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	67798000
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	101872000
CY2012Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	112851000
CY2013Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	134350000
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	37001000
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	143419000
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1324383000
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	149901000
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	16387000
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	14534000
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46422000
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	46422000
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	46553000
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	45997000
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	-144628000
CY2012	us-gaap	Interest And Other Income InterestAndOtherIncome	944000
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	35172000
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	3019000
CY2013	us-gaap	Net Income Loss NetIncomeLoss	41029000
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-2.22
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	3.07
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.16
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-2.22
CY2013Q4	crk	Commitments For Contracted Drilling Services CommitmentsForContractedDrillingServices	44900000
CY2012	crk	Employee Service Share Based Compensation Tax Provision Expense From Compensation Expense EmployeeServiceShareBasedCompensationTaxProvisionExpenseFromCompensationExpense	1700000
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	35867000
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2967000
CY2013Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	15534000
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	194995000
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	798700000
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	177026000
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	480595000
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	290776000
CY2013	crk	Loss On Sale Of Oil And Gas Property LossOnSaleOfOilAndGasProperty	2033000
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-14624000
CY2011	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	60817000
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	-41316000
CY2012	us-gaap	Gain Loss On Sale Of Commodity Contracts GainLossOnSaleOfCommodityContracts	21256000
CY2013	us-gaap	Interest And Other Income InterestAndOtherIncome	1059000
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-2.22
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-103079000
CY2011	us-gaap	Net Income Loss NetIncomeLoss	-33472000
CY2012	us-gaap	Net Income Loss NetIncomeLoss	-100060000
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.73
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.06
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-33472000
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.73
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.73
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-2.22
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	3.07
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.73
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.16
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	5340000
CY2013Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	339000
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1487000
CY2013Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	91297000
CY2012Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	33280000
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	36611000
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2273000
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2138000
CY2012Q4	us-gaap	Liabilities Liabilities	1636363000
CY2013Q4	us-gaap	Liabilities Liabilities	1187393000
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	24204000
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	23840000
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	480816000
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4418000
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	424317000
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	447349000
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	933534000
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	952005000
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2569897000
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2139398000
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.50
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.50
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	48408734
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	47680516
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	48408734
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	47680516
CY2011	us-gaap	Oil And Condensate Revenue OilAndCondensateRevenue	80244000
CY2012	us-gaap	Oil And Condensate Revenue OilAndCondensateRevenue	181163000
CY2013	us-gaap	Oil And Condensate Revenue OilAndCondensateRevenue	231837000
CY2011	us-gaap	Natural Gas Production Revenue NaturalGasProductionRevenue	354123000
CY2012	us-gaap	Natural Gas Production Revenue NaturalGasProductionRevenue	203651000
CY2013	us-gaap	Natural Gas Production Revenue NaturalGasProductionRevenue	188453000
CY2011	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	434367000
CY2012	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	384814000
CY2013	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	420290000
CY2012	crk	Gain On Sale Of Oil And Gas Property GainOnSaleOfOilAndGasProperty	24271000
CY2013	crk	Gain On Sale Of Oil And Gas Property GainOnSaleOfOilAndGasProperty	0
CY2011	us-gaap	Revenues Revenues	434367000
CY2012	us-gaap	Revenues Revenues	409085000
CY2013	us-gaap	Revenues Revenues	420290000
CY2011	crk	Production And Severance Taxes Operating Expense ProductionAndSeveranceTaxesOperatingExpense	3670000
CY2012	crk	Production And Severance Taxes Operating Expense ProductionAndSeveranceTaxesOperatingExpense	11727000
CY2013	crk	Production And Severance Taxes Operating Expense ProductionAndSeveranceTaxesOperatingExpense	14524000
CY2011	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	28491000
CY2012	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	26265000
CY2013	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	17245000
CY2011	us-gaap	Lease Operating Expense LeaseOperatingExpense	46552000
CY2012	us-gaap	Lease Operating Expense LeaseOperatingExpense	51248000
CY2013	us-gaap	Lease Operating Expense LeaseOperatingExpense	52844000
CY2011	crk	Exploration Expense Including Unproved Impairments And Exploratory Dry Hole Costs ExplorationExpenseIncludingUnprovedImpairmentsAndExploratoryDryHoleCosts	10148000
CY2012	crk	Exploration Expense Including Unproved Impairments And Exploratory Dry Hole Costs ExplorationExpenseIncludingUnprovedImpairmentsAndExploratoryDryHoleCosts	61449000
CY2013	crk	Exploration Expense Including Unproved Impairments And Exploratory Dry Hole Costs ExplorationExpenseIncludingUnprovedImpairmentsAndExploratoryDryHoleCosts	33423000
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	343858000
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	337134000
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	33798000
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	34767000
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-9085000
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-48096000
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-153713000
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-162880000
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-106723000
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-6780000
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-90548000
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-50634000
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-56157000
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	147752000
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.06
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.375
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45997000
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46553000
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	298000
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-298000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-12152000
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-15760000
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-4418000
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11854000
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-16058000
CY2012	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	25368000
CY2013	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	652000
CY2011	crk	Loss On Sale Of Oil And Gas Property LossOnSaleOfOilAndGasProperty	57000
CY2011	us-gaap	Operating Expenses OperatingExpenses	475683000
CY2012	us-gaap	Operating Expenses OperatingExpenses	553713000
CY2013	us-gaap	Operating Expenses OperatingExpenses	492622000
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	-72332000
CY2011	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	35118000
CY2012	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	26621000
CY2013	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	7877000
CY2013	us-gaap	Gain Loss On Sale Of Commodity Contracts GainLossOnSaleOfCommodityContracts	-8388000
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1096000
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-17854000
CY2011	us-gaap	Interest And Other Income InterestAndOtherIncome	790000
CY2011	us-gaap	Interest Expense InterestExpense	41592000
CY2012	us-gaap	Interest Expense InterestExpense	57906000
CY2013	us-gaap	Interest Expense InterestExpense	73242000
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-4418000
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-45326000
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-116118000
CY2011	crk	Other Comprehensive Income Unrealized Hedging Gains Losses Net Of Tax Tax Amount OtherComprehensiveIncomeUnrealizedHedgingGainsLossesNetOfTaxTaxAmount	161000
CY2012	crk	Other Comprehensive Income Unrealized Hedging Gains Losses Net Of Tax Tax Amount OtherComprehensiveIncomeUnrealizedHedgingGainsLossesNetOfTaxTaxAmount	-161000
CY2011	crk	Other Comprehensive Income Net Unrealized Gains Losses Tax OtherComprehensiveIncomeNetUnrealizedGainsLossesTax	6543000
CY2012	crk	Other Comprehensive Income Net Unrealized Gains Losses Tax OtherComprehensiveIncomeNetUnrealizedGainsLossesTax	8487000
CY2013	crk	Other Comprehensive Income Net Unrealized Gains Losses Tax OtherComprehensiveIncomeNetUnrealizedGainsLossesTax	2380000
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	1068531000
CY2011	crk	Stock Based Compensation StockBasedCompensation	15032000
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-612000
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1037625000
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-1701000
CY2013	crk	Stock Based Compensation StockBasedCompensation	12785000
CY2013	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	-1680000
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-2016000
CY2013	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	9232000
CY2013	us-gaap	Dividends Dividends	17997000
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	3019000
CY2013	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	147752000
CY2011	crk	Gain Loss On Sale Of Assets GainLossOnSaleOfAssets	35061000
CY2012	crk	Gain Loss On Sale Of Assets GainLossOnSaleOfAssets	50892000
CY2013	crk	Gain Loss On Sale Of Assets GainLossOnSaleOfAssets	5844000
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	679000
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	946000
CY2011	us-gaap	Interest Paid InterestPaid	49109000
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1403000
CY2011	crk	Other Comprehensive Income Unrealized Holding Gain On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainOnSecuritiesArisingDuringPeriodNetOfTax	10675000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	12291000
CY2011	crk	Other Comprehensive Income Changes In Value Of Available For Sale Securities OtherComprehensiveIncomeChangesInValueOfAvailableForSaleSecurities	10675000
CY2012	crk	Stock Based Compensation StockBasedCompensation	13728000
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14652000
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-50472000
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	268994000
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-56291000
CY2011	crk	Dry Hole Costs And Lease Hold Impairments DryHoleCostsAndLeaseHoldImpairments	9819000
CY2012	crk	Dry Hole Costs And Lease Hold Impairments DryHoleCostsAndLeaseHoldImpairments	61300000
CY2012	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	42508000
CY2013	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-7715000
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	275433000
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	262229000
CY2013	crk	Dry Hole Costs And Lease Hold Impairments DryHoleCostsAndLeaseHoldImpairments	32984000
CY2012	us-gaap	Derivative Cash Received On Hedge DerivativeCashReceivedOnHedge	-9766000
CY2013	us-gaap	Derivative Cash Received On Hedge DerivativeCashReceivedOnHedge	-2293000
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3733000
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5277000
CY2013	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6074000
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	15032000
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	13728000
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	12785000
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9769000
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-16166000
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	11120000
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3311000
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	972000
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1905000
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-16809000
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-30772000
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	26887000
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	275433000
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	219721000
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	261279000
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	651226000
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	385034000
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	422244000
CY2012	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	141936000
CY2013	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	174000
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	53417000
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	37705000
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	13392000
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-597809000
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-205393000
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-408678000
CY2011	crk	Payment To Acquire Property Plant And Equipment Discontinued Operations PaymentToAcquirePropertyPlantAndEquipmentDiscontinuedOperations	344277000
CY2012	crk	Payment To Acquire Property Plant And Equipment Discontinued Operations PaymentToAcquirePropertyPlantAndEquipmentDiscontinuedOperations	203077000
CY2013	crk	Payment To Acquire Property Plant And Equipment Discontinued Operations PaymentToAcquirePropertyPlantAndEquipmentDiscontinuedOperations	101037000
CY2012	crk	Proceeds From Sale Of Oil And Gas Property And Equipment Discontinued Operations ProceedsFromSaleOfOilAndGasPropertyAndEquipmentDiscontinuedOperations	24750000
CY2013	crk	Proceeds From Sale Of Oil And Gas Property And Equipment Discontinued Operations ProceedsFromSaleOfOilAndGasPropertyAndEquipmentDiscontinuedOperations	823072000
CY2011	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-344277000
CY2012	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-178327000
CY2013	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	722035000
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-942086000
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-383720000
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	313357000
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	970000000
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	515912000
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	305000000
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	287000000
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	2900000
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-3324000
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	56000
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	390000000
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	835000000
CY2011	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	529000
CY2013	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	12471000
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	8478000
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6709000
CY2013	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2744000
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9232000
CY2011	crk	Tax Benefit Cost From Share Based Compensation Financing Activities TaxBenefitCostFromShareBasedCompensationFinancingActivities	-612000
CY2013	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1680000
CY2012	crk	Tax Benefit Cost From Share Based Compensation Financing Activities TaxBenefitCostFromShareBasedCompensationFinancingActivities	-1701000
CY2013	crk	Tax Benefit Cost From Share Based Compensation Financing Activities TaxBenefitCostFromShareBasedCompensationFinancingActivities	-2016000
CY2013	us-gaap	Payments Of Dividends PaymentsOfDividends	17997000
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	673381000
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	117502000
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-576140000
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	6728000
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-3989000
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1504000
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1732000
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8460000
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div> <p style="margin-bottom:0pt;margin-top:12pt;margin-left:0%;margin-right:0%;text-indent:0%;font-size:11pt;font-family:Times New Roman;"><font style="font-weight:bold;font-style:italic;;font-size:11pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Reclassifications </font></p><p style="text-align:justify;margin-bottom:0pt;margin-top:6pt;margin-left:0%;margin-right:0%;text-indent:3.85%;font-size:11pt;font-family:Times New Roman;"><font style="font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.85%">Certain reclassifications have been made to prior periods’ financial statements consisting primarily of reclassifications to reflect the Company’s West Texas oil and gas properties as discontinued operations and a change in the presentation of our derivative </font><font style="font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">financial instruments. </font></p></div>
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="text-align:justify;margin-bottom:0pt;margin-top:12pt;margin-left:2.62%;margin-right:0%;text-indent:0%;font-size:11pt;font-family:Times New Roman;"><font style="font-weight:bold;font-style:italic;;font-size:11pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Use of Estimates in the Preparation of Financial Statements </font></p><p style="text-align:justify;margin-bottom:0pt;margin-top:6pt;margin-left:0%;margin-right:0%;text-indent:3.85%;font-size:11pt;font-family:Times New Roman;"><font style="font-size:11pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.85%">The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual amounts could differ from those estimates. Changes in the future estimated oil and natural gas reserves or the estimated future cash flows attributable to the reserves that are utilized for impairment analysis could have a significant impact on the future results of operations. </font></p></div>
CY2013	crk	Employee Service Share Based Compensation Tax Provision Expense From Compensation Expense EmployeeServiceShareBasedCompensationTaxProvisionExpenseFromCompensationExpense	2000000
CY2013Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	115150
CY2013	crk	Disposal Group Including Discontinued Operation Oil And Gas Sales Revenue DisposalGroupIncludingDiscontinuedOperationOilAndGasSalesRevenue	25125000
CY2012	crk	Disposal Group Including Discontinued Operation Production And Severance Taxes Operating Expense DisposalGroupIncludingDiscontinuedOperationProductionAndSeveranceTaxesOperatingExpense	2294000
CY2013	crk	Disposal Group Including Discontinued Operation Production And Severance Taxes Operating Expense DisposalGroupIncludingDiscontinuedOperationProductionAndSeveranceTaxesOperatingExpense	1120000
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Payable DisposalGroupIncludingDiscontinuedOperationAccountsPayable	21302000
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Accrued Liabilities DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities	10371000
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	1607000
CY2012Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	33280000
CY2012	crk	Disposal Group Including Discontinued Operation Oil And Gas Sales Revenue DisposalGroupIncludingDiscontinuedOperationOilAndGasSalesRevenue	47109000
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Net DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet	5924000
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Other Current Assets DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets	1644000
CY2012Q4	crk	Disposal Group Including Discontinued Operations Assets Current DisposalGroupIncludingDiscontinuedOperationsAssetsCurrent	7568000
CY2012Q4	crk	Disposal Group Including Discontinued Operations Unproved Oil And Gas Property Successful Effort Method DisposalGroupIncludingDiscontinuedOperationsUnprovedOilAndGasPropertySuccessfulEffortMethod	150801000
CY2012Q4	crk	Disposal Group Including Discontinued Operations Proved Oil And Gas Properties Leasehold Costs DisposalGroupIncludingDiscontinuedOperationsProvedOilAndGasPropertiesLeaseholdCosts	225546000
CY2012Q4	crk	Disposal Group Including Discontinued Operations Proved Oil And Gas Properties Wells And Related Equipment And Facilities DisposalGroupIncludingDiscontinuedOperationsProvedOilAndGasPropertiesWellsAndRelatedEquipmentAndFacilities	180475000
CY2012Q4	crk	Disposal Group Including Discontinued Operations Property Plant And Equipment Other DisposalGroupIncludingDiscontinuedOperationsPropertyPlantAndEquipmentOther	673000
CY2012Q4	crk	Disposal Group Including Discontinued Operations Accumulated Depreciation Depletion And Amortization Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationsAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	46129000
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment Net DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNet	511366000
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	518934000
CY2012	crk	Disposal Group Including Discontinued Operation Gas Gathering Transportation Marketing And Processing Costs DisposalGroupIncludingDiscontinuedOperationGasGatheringTransportationMarketingAndProcessingCosts	1047000
CY2013	crk	Disposal Group Including Discontinued Operation Gas Gathering Transportation Marketing And Processing Costs DisposalGroupIncludingDiscontinuedOperationGasGatheringTransportationMarketingAndProcessingCosts	501000
CY2012	crk	Disposal Group Including Discontinued Operation Lease Operating Expense DisposalGroupIncludingDiscontinuedOperationLeaseOperatingExpense	9372000
CY2013	crk	Disposal Group Including Discontinued Operation Lease Operating Expense DisposalGroupIncludingDiscontinuedOperationLeaseOperatingExpense	9853000
CY2012	crk	Disposal Group Including Discontinued Operation Depreciation Depletion And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationDepletionAndAmortization	21428000
CY2013	crk	Disposal Group Including Discontinued Operation Depreciation Depletion And Amortization DisposalGroupIncludingDiscontinuedOperationDepreciationDepletionAndAmortization	8649000
CY2012	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	6669000
CY2013	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	6346000
CY2012	crk	Disposal Group Including Discontinued Operation Costs And Expenses DisposalGroupIncludingDiscontinuedOperationCostsAndExpenses	40810000
CY2013	crk	Disposal Group Including Discontinued Operation Costs And Expenses DisposalGroupIncludingDiscontinuedOperationCostsAndExpenses	26469000
CY2013	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	230008000
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	6299000
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	228664000
CY2013	crk	Disposal Group Including Discontinued Operation Current Income Tax Expense Benefit DisposalGroupIncludingDiscontinuedOperationCurrentIncomeTaxExpenseBenefit	2218000
CY2012	crk	Disposal Group Including Discontinued Operation Deferred Income Tax Expense Benefit DisposalGroupIncludingDiscontinuedOperationDeferredIncomeTaxExpenseBenefit	3280000
CY2013	crk	Disposal Group Including Discontinued Operation Deferred Income Tax Expense Benefit DisposalGroupIncludingDiscontinuedOperationDeferredIncomeTaxExpenseBenefit	78694000
CY2012	crk	Disposal Group Including Discontinued Operation Income Tax Expense Benefit DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit	3280000
CY2013	crk	Disposal Group Including Discontinued Operation Income Tax Expense Benefit DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit	80912000
CY2013	crk	Disposal Group Including Discontinued Operations Interest Costs Capitalized DisposalGroupIncludingDiscontinuedOperationsInterestCostsCapitalized	2010000
CY2012	crk	Disposal Group Including Discontinued Operations Interest Costs Capitalized DisposalGroupIncludingDiscontinuedOperationsInterestCostsCapitalized	9582000
CY2012Q4	crk	Accrued Oil And Gas Property Acquisition Costs AccruedOilAndGasPropertyAcquisitionCosts	2413000
CY2013Q4	crk	Accrued Oil And Gas Property Acquisition Costs AccruedOilAndGasPropertyAcquisitionCosts	40128000
CY2012Q4	crk	Accrued Drilling Costs AccruedDrillingCosts	4726000
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	10225000
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9204000
CY2010Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	6674000
CY2011Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	13256000
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	417000
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1281000
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	558000
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	382000
CY2011	crk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Option Nonvested Weighted Average Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionNonvestedWeightedAverageNumber	1683000
CY2012	crk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Option Nonvested Weighted Average Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionNonvestedWeightedAverageNumber	1737000
CY2013	crk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Option Nonvested Weighted Average Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionNonvestedWeightedAverageNumber	1544000
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	215000
CY2013Q4	crk	Accrued Drilling Costs AccruedDrillingCosts	34914000
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	12351000
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	7051000
CY2012Q4	crk	Advance From Joint Venture Partner AdvanceFromJointVenturePartner	7286000
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	833000
CY2013	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1083000
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	5839000
CY2012Q4	crk	Jv Expected Acres Per Well Drilled JVExpectedAcresPerWellDrilled	80
CY2012Q4	crk	Jv Partner Total Working Interest Per Well JVPartnerTotalWorkingInterestPerWell	0.33
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	168000
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	130000
CY2011	crk	Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareWeightedAverageExercisePrice	36.42
CY2013Q3	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2013-08-22
CY2013Q4	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2013-11-26
CY2011	crk	Other Comprehensive Income Reclassification Adjustment Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentIncludedInNetIncomeNetOfTax	22827000
CY2012	crk	General And Administrative Expense Reimbursements Of Overhead Costs GeneralAndAdministrativeExpenseReimbursementsOfOverheadCosts	11500000
CY2013	crk	General And Administrative Expense Reimbursements Of Overhead Costs GeneralAndAdministrativeExpenseReimbursementsOfOverheadCosts	11900000
CY2011	crk	Other Comprehensive Income Changes In Value OtherComprehensiveIncomeChangesInValue	10973000
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	20476000
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	13200000
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	20900000
CY2012	crk	Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareWeightedAverageExercisePrice	37.81
CY2013	crk	Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareWeightedAverageExercisePrice	32.90
CY2013	crk	Anti Dilutive Securities Performance Share Units Excluded From Computation Of Earnings Per Share Amount AntiDilutiveSecuritiesPerformanceShareUnitsExcludedFromComputationOfEarningsPerShareAmount	75000
CY2013	crk	Anti Dilutive Securities Excluded From Computation Of Earnings Per Unit Weighted Average Exercise Price AntiDilutiveSecuritiesExcludedFromComputationOfEarningsPerUnitWeightedAverageExercisePrice	20.92
CY2012	us-gaap	Interest Paid InterestPaid	79001000
CY2013	us-gaap	Interest Paid InterestPaid	83560000
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-58000
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	769000
CY2011	crk	Other Comprehensive Income Reclassification For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	22827000
CY2012	crk	Other Comprehensive Income Reclassification For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	17303000
CY2013	crk	Other Comprehensive Income Reclassification For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	5120000
CY2012	crk	Other Comprehensive Income Unrealized Holding Gain On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainOnSecuritiesArisingDuringPeriodNetOfTax	1543000
CY2013	crk	Other Comprehensive Income Unrealized Holding Gain On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainOnSecuritiesArisingDuringPeriodNetOfTax	702000
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	9318000
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2757000
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	161000
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-161000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	5748000
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	831000
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	377000
CY2011	crk	Other Comprehensive Income Changes In Value Of Derivative OtherComprehensiveIncomeChangesInValueOfDerivative	298000
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	298000
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-298000
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	32330000
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	20178000
CY2012	crk	Other Comprehensive Income Changes In Value Of Available For Sale Securities OtherComprehensiveIncomeChangesInValueOfAvailableForSaleSecurities	1543000
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4418000
CY2013	crk	Other Comprehensive Income Changes In Value Of Available For Sale Securities OtherComprehensiveIncomeChangesInValueOfAvailableForSaleSecurities	702000
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	32330000
CY2012	crk	Other Comprehensive Income Reclassification Adjustment Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentIncludedInNetIncomeNetOfTax	17601000
CY2012	crk	Other Comprehensive Income Changes In Value OtherComprehensiveIncomeChangesInValue	1543000
CY2013	crk	Other Comprehensive Income Reclassification Adjustment Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentIncludedInNetIncomeNetOfTax	5120000
CY2013	crk	Other Comprehensive Income Changes In Value OtherComprehensiveIncomeChangesInValue	702000
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax
CY2013Q2	crk	Discontinued Operations Sale Price DiscontinuedOperationsSalePrice	823100000
CY2013	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	230000000
CY2013	crk	Quantity Of Oil In Barrels Under Swap Agreements QuantityOfOilInBarrelsUnderSwapAgreements	1985000
CY2012	crk	Quantity Of Oil In Barrels Under Swap Agreements QuantityOfOilInBarrelsUnderSwapAgreements	2160000
CY2013	crk	Conversion Ratio Of Oil To Natural Gas In Units Of Production ConversionRatioOfOilToNaturalGasInUnitsOfProduction	One barrel of oil for six thousand cubic feet of natural gas
CY2013	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	32984000
CY2012	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	61300000
CY2011	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	9800000
CY2011	crk	Impairment Charges Related To Oil And Gas Properties ImpairmentChargesRelatedToOilAndGasProperties	60800000
CY2012	crk	Impairment Charges Related To Oil And Gas Properties ImpairmentChargesRelatedToOilAndGasProperties	25400000
CY2013	crk	Impairment Charges Related To Oil And Gas Properties ImpairmentChargesRelatedToOilAndGasProperties	700000
CY2013	crk	Number Of Major Customer Of Oil And Gas Sales NumberOfMajorCustomerOfOilAndGasSales	2
CY2012	crk	Number Of Major Customer Of Oil And Gas Sales NumberOfMajorCustomerOfOilAndGasSales	2
CY2011	crk	Number Of Major Customer Of Oil And Gas Sales NumberOfMajorCustomerOfOilAndGasSales	2
CY2011	crk	General And Administrative Expense Reimbursements Of Overhead Costs GeneralAndAdministrativeExpenseReimbursementsOfOverheadCosts	10500000
CY2012Q4	crk	Jv Partner Acreage Participation Working Interest Per Well JVPartnerAcreageParticipationWorkingInterestPerWell	0.33
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4700000
CY2013	crk	Performance Units Adjustment For Performance Multiplier Range Minimum PerformanceUnitsAdjustmentForPerformanceMultiplierRangeMinimum	0
CY2013	crk	Performance Units Adjustment For Performance Multiplier Range Maximum PerformanceUnitsAdjustmentForPerformanceMultiplierRangeMaximum	3
CY2012	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	119800000
CY2012	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	26000000
CY2012Q4	crk	Jv Partner Participation Cost Per Acre JVPartnerParticipationCostPerAcre	25000
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1100000
CY2012Q4	crk	Jv Partner Drilling Cost Working Interest Per Well JVPartnerDrillingCostWorkingInterestPerWell	0.33
CY2012Q3	crk	Payment Received From Joint Venture Partner For Initial Participation In Wells Spud PaymentReceivedFromJointVenturePartnerForInitialParticipationInWellsSpud	23800000
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	-2409000
CY2012Q4	crk	Payment Received From Joint Venture Partner For Acreage And Facility Reimbursements PaymentReceivedFromJointVenturePartnerForAcreageAndFacilityReimbursements	8700000
CY2013Q4	crk	Payment Received From Joint Venture Partner For Acreage And Facility Reimbursements PaymentReceivedFromJointVenturePartnerForAcreageAndFacilityReimbursements	51500000
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	-2764000
CY2012Q4	crk	Joint Venture Formation Costs Incurred JointVentureFormationCostsIncurred	1700000
CY2012Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	112851000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	3.13
CY2013Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2013-05-31
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	210000000
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	588700000
CY2013Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2013-09-06
CY2013Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2013-12-06
CY2013Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
CY2012Q4	crk	Long Term Debt Net Of Unamortized Discount LongTermDebtNetOfUnamortizedDiscount	798700000
CY2013Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
CY2013	us-gaap	Dividends Cash DividendsCash	18000000
CY2013	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	100000000
CY2013Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	134350000
CY2012Q4	crk	Capitalized Costs Lease Hold Costs CapitalizedCostsLeaseHoldCosts	899914000
CY2013Q4	crk	Capitalized Costs Lease Hold Costs CapitalizedCostsLeaseHoldCosts	971239000
CY2012Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	2473781000
CY2013Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	2810074000
CY2012Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	1541969000
CY2013Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	1861894000
CY2012Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	1944577000
CY2013Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	2053769000
CY2011	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	103946000
CY2012	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	13742000
CY2013	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	130113000
CY2011	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	16879000
CY2013	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	6471000
CY2011	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	496506000
CY2012	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	331254000
CY2013	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	341970000
CY2011	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	83182000
CY2012	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	5522000
CY2013	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	439000
CY2011	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties CostsIncurredAcquisitionOfOilAndGasProperties	700513000
CY2012	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties CostsIncurredAcquisitionOfOilAndGasProperties	350518000
CY2013	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties CostsIncurredAcquisitionOfOilAndGasProperties	478993000
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	1324383000
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	798700000
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1400000
CY2013	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1400000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1955000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1994000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1993000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	2021000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	2060000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	4680000
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	14703000
CY2013	crk	Contract Term Related To Drilling Services ContractTermRelatedToDrillingServices	Through November 2015
CY2013	crk	Natural Gas Transportation Agreement Term NaturalGasTransportationAgreementTerm	Through July 2019
CY2013Q4	crk	Maximum Commitments Under Natural Gas Transportation Agreements MaximumCommitmentsUnderNaturalGasTransportationAgreements	19400000
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	10.00
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	10.00
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2013Q2	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2013-05-15
CY2013	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	631096
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	105000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15000000
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	13700000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012Q1	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	103772000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.057
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.017
CY2011	crk	Employee Service Share Based Compensation Tax Provision Expense From Compensation Expense EmployeeServiceShareBasedCompensationTaxProvisionExpenseFromCompensationExpense	600000
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.58
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.009
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.015
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12800000
CY2013Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	115150
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	157150
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.003
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-149901000
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-177026000
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	210000
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	42000
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	115150
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	115150
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	38.36
CY2013	crk	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsWeightedAverageExercisePrice	53.34
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	32.90
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	32.90
CY2011	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	323000
CY2012	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	365000
CY2013	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	702000
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	28000
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-162000
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	134000
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-16834000
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-53799000
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-57008000
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2753000
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2545000
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1545000
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-741000
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	410000
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-799000
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	198000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.304
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.329
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.345
CY2012Q4	crk	Deferred Tax Liabilities Marketable Securities Current DeferredTaxLiabilitiesMarketableSecuritiesCurrent	1262000
CY2013Q4	crk	Deferred Tax Liabilities Marketable Securities Current DeferredTaxLiabilitiesMarketableSecuritiesCurrent
CY2012Q4	crk	Deferred Tax Liabilities Derivatives Current DeferredTaxLiabilitiesDerivativesCurrent	4078000
CY2013Q4	crk	Deferred Tax Liabilities Derivatives Current DeferredTaxLiabilitiesDerivativesCurrent	339000
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	-5340000
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	-339000
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	247062000
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	238361000
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8319000
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8221000
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	95180000
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	70207000
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	19080000
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	21178000
CY2012Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	23009000
CY2013Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	35507000
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-2627000
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	151236000
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-155241000
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-177365000
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-1.66
CY2013	crk	Number Of State Jurisdiction Currently Under Review NumberOfStateJurisdictionCurrentlyUnderReview	2
CY2012	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	21300000
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	129705000
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.68
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.20
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.29
CY2013	us-gaap	Derivative Loss On Derivative DerivativeLossOnDerivative	8400000
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	11700000
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.52
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1000000
CY2012Q4	crk	Derivative Assets Carry Value Net DerivativeAssetsCarryValueNet	11700000
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2013Q4	crk	Derivative Assets Carry Value Net DerivativeAssetsCarryValueNet	1000000
CY2011	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-50399000
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-857000
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	-27144000
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.66
CY2012	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-886531000
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.52
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.68
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.03
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.06
CY2012Q2	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	90329000
CY2012Q3	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	97141000
CY2012Q4	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	93572000
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-1432000
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-11539000
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-28831000
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-102826000
CY2012Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1417000
CY2012Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	16710000
CY2012Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-44212000
CY2012Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-76994000
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-42000
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-9545000
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	13763000
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1157000
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	1375000
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	7165000
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	-30449000
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	-78151000
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.03
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.35
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.95
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.35
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.95
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-1.66
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.20
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.29
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.66
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.68
CY2013Q1	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	95020000
CY2013Q2	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	107820000
CY2013Q3	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	111590000
CY2013Q4	us-gaap	Oil And Gas Sales Revenue OilAndGasSalesRevenue	105860000
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-20856000
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-18004000
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-9086000
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-24386000
CY2013Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-24517000
CY2013Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-21531000
CY2013Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-24034000
CY2013Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-36641000
CY2012Q3	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	1370000
CY2012Q4	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	58615000
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	-24034000
CY2010Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	606136000
CY2011	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	205418000
CY2012	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	179549000
CY2012Q1	crk	Impairment Charges Related To Evaluated Properties ImpairmentChargesRelatedToEvaluatedProperties	49000
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	-37498000
CY2012Q2	crk	Impairment Charges Related To Evaluated Properties ImpairmentChargesRelatedToEvaluatedProperties	5301000
CY2012Q4	crk	Impairment Charges Related To Evaluated Properties ImpairmentChargesRelatedToEvaluatedProperties	20018000
CY2013	us-gaap	Previously Estimated Development Costs Incurred During Period PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod	187643000
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.45
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.52
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.80
CY2012	crk	Impairment Charges Related To Evaluated Properties ImpairmentChargesRelatedToEvaluatedProperties	25368000
CY2011Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	887798000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	807217000
CY2012Q1	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	1315000
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.82
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.52
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.45
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.52
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.80
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.06
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	3.13
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.58
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.68
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.52
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.82
CY2012Q1	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	6727000
CY2012Q2	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	20338000
CY2012Q3	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	-2794000
CY2012	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	24271000
CY2012Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	26621000
CY2013Q2	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	81000
CY2013Q3	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	-2165000
CY2013Q4	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	51000
CY2013	us-gaap	Gain Loss On Sale Of Oil And Gas Property GainLossOnSaleOfOilAndGasProperty	-2033000
CY2013Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	7877000
CY2013Q4	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-17854000
CY2013Q1	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	2443000
CY2013Q2	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	9465000
CY2013Q3	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	2995000
CY2013Q4	crk	Impairment Charges Related To Unevaluated Properties ImpairmentChargesRelatedToUnevaluatedProperties	18081000
CY2013Q2	crk	Impairment Charges Related To Evaluated Properties ImpairmentChargesRelatedToEvaluatedProperties	652000
CY2013	crk	Impairment Charges Related To Evaluated Properties ImpairmentChargesRelatedToEvaluatedProperties	652000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	3053078000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Cash Inflows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows	3817982000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-915053000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Production Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1	-1307923000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-544084000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Development Costs1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1	-649758000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-372813000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Income Tax Expense1 DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1	-451708000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	1221128000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Net Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows	1408593000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	579803000
CY2013	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves10 Percent Annual Discount For Estimated Timing Of Cash Flows DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows	601376000
CY2012	us-gaap	Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Standardized Measure DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure	641325000
CY2011	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	2959000
CY2013	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	48411000
CY2011	us-gaap	Accretion Of Discount AccretionOfDiscount	79763000
CY2012	us-gaap	Accretion Of Discount AccretionOfDiscount	117381000
CY2012Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	641325000
CY2011	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	506000
CY2013	us-gaap	Accretion Of Discount AccretionOfDiscount	81434000
CY2011	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	10962000
CY2012	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-217925000
CY2013	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	43117000
CY2012	crk	Changes In Timing ChangesInTiming	27077000
CY2013	crk	Changes In Timing ChangesInTiming	80348000
CY2011	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	540937000
CY2012	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	628088000
CY2012	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	337223000
CY2013	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	291582000
CY2013	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-157207000
CY2011	crk	Changes In Timing ChangesInTiming	-58304000
CY2012	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	236925000
CY2011	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	355654000
CY2012	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	307407000
CY2013	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	335677000
CY2011	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-94526000
CY2012	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	112997000
CY2013	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-73759000
CY2013Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	807217000
CY2012	crk	Percentage Of Discount Factor PercentageOfDiscountFactor	0.10
CY2013	crk	Percentage Of Discount Factor PercentageOfDiscountFactor	0.10
CY2012	crk	Proved Undeveloped Reserves Revisions Increase Decrease ProvedUndevelopedReservesRevisionsIncreaseDecrease	-460000

Files In Submission

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2013 Q4 Form 10-K Financial Statement

#000156459014000379 Filed on February 27, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CRK COMSTOCK RESOURCES INC Stock $crk

2013 Q4 Form 10-K Financial Statement

#000156459014000379 Filed on February 27, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CRK
COMSTOCK RESOURCES INC Stock $crk