$UNTC
Unit Corp Stock $untc

$untc Overview Financials Valuation SEC Filings Company Website

2018 Q1 Form 10-K Financial Statement

#000079894919000007 Filed on February 26, 2019

Income Statement

Concept	2018 Q1	2017 Q4	2017 Q3
Revenue	$205.1M	$204.8M	$188.5M
YoY Change	16.74%	17.54%	22.87%
Cost Of Revenue	$109.2M	$109.9M	$106.8M
YoY Change	13.63%	25.46%	-18.35%
Gross Profit	$38.83M	$37.21M	$27.18M
YoY Change	18.91%	1.17%	-201.07%
Gross Profit Margin	18.93%	18.17%	14.42%
Selling, General & Admin	$10.80M	$11.20M	$9.200M
YoY Change	20.0%	53.42%	3.37%
% of Gross Profit	27.81%	30.1%	33.85%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$57.07M	$57.80M	$54.53M
YoY Change	21.59%	19.42%	9.13%
% of Gross Profit	146.95%	155.33%	200.63%
Operating Expenses	$166.3M	$68.90M	$161.3M
YoY Change	16.24%	20.03%	-10.53%
Operating Profit	$28.23M	-$31.69M	$18.03M
YoY Change	-125.57%	53.7%	-167.23%
Interest Expense	-$16.80M	-$15.80M	-$12.60M
YoY Change	-416.98%	-42.75%	320.0%
% of Operating Profit	-59.51%		-69.9%
Other Income/Expense, Net	-$16.76M	$0.00	-$12.55M
YoY Change	-413.98%	-100.0%	314.29%
Pretax Income	$11.47M	$9.400M	$5.474M
YoY Change	-61.59%	161.11%	-114.17%
Income Tax	$3.607M	$1.500M	$1.769M
% Of Pretax Income	31.44%	15.96%	32.32%
Net Earnings	$7.865M	$89.16M	$3.705M
YoY Change	-50.62%	5197.39%	-115.42%
Net Earnings / Revenue	3.83%	43.52%	1.97%
Basic Earnings Per Share	$0.15	$1.74	$0.07
Diluted Earnings Per Share	$0.15	$1.71	$0.07
COMMON SHARES
Basic Shares Outstanding	51.73M shares	52.88M shares	51.39M shares
Diluted Shares Outstanding	52.27M shares		51.97M shares

Balance Sheet

Concept	2018 Q1	2017 Q4	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$800.0K	$700.0K	$800.0K
YoY Change	-90.59%	-22.22%	-11.11%
Cash & Equivalents	$752.0K	$701.0K	$822.0K
Short-Term Investments
Other Short-Term Assets	$8.200M	$6.900M	$8.500M
YoY Change	12.33%	-79.03%	-50.29%
Inventory	$500.0K	$500.0K	$3.300M
Prepaid Expenses
Receivables	$98.51M	$111.5M	$116.3M
Other Receivables	$100.0K	$0.00	$100.0K
Total Short-Term Assets	$108.0M	$119.7M	$129.0M
YoY Change	7.05%	-1.26%	37.72%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.401B	$2.383B	$2.358B
YoY Change	5.63%	4.46%	2.06%
Goodwill	$62.81M	$62.81M	$62.81M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$27.03M	$16.23M	$16.09M
YoY Change	75.24%	17.46%	13.59%
Total Long-Term Assets	$2.492B	$2.462B	$2.437B
YoY Change	5.95%	4.4%	2.07%
TOTAL ASSETS
Total Short-Term Assets	$108.0M	$119.7M	$129.0M
Total Long-Term Assets	$2.492B	$2.462B	$2.437B
Total Assets	$2.600B	$2.581B	$2.566B
YoY Change	6.0%	4.12%	3.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$131.1M	$112.6M	$116.2M
YoY Change	74.38%	26.87%	106.03%
Accrued Expenses	$52.96M	$48.52M	$60.13M
YoY Change	14.12%	22.38%	4.18%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$3.900M
YoY Change
Total Short-Term Liabilities	$210.7M	$181.9M	$191.1M
YoY Change	48.17%	10.32%	40.56%
LONG-TERM LIABILITIES
Long-Term Debt	$790.5M	$820.3M	$803.8M
YoY Change	-0.02%	2.42%	-5.94%
Other Long-Term Liabilities	$109.9M	$100.2M	$105.5M
YoY Change	7.91%	-2.78%	1.75%
Total Long-Term Liabilities	$900.5M	$920.5M	$909.3M
YoY Change	0.89%	1.83%	-5.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$210.7M	$181.9M	$191.1M
Total Long-Term Liabilities	$900.5M	$920.5M	$909.3M
Total Liabilities	$1.111B	$1.102B	$1.100B
YoY Change	7.39%	3.14%	0.57%
SHAREHOLDERS EQUITY
Retained Earnings	$798.1M	$799.4M	$710.2M
YoY Change	14.43%	17.29%	4.47%
Common Stock	$10.40M	$10.28M	$10.28M
YoY Change	2.89%	2.64%	2.61%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.357B	$1.346B	$1.252B
YoY Change
Total Liabilities & Shareholders Equity	$2.600B	$2.581B	$2.566B
YoY Change	6.0%	4.12%	3.41%

Cashflow Statement

Concept	2018 Q1	2017 Q4	2017 Q3
OPERATING ACTIVITIES
Net Income	$7.865M	$89.16M	$3.705M
YoY Change	-50.62%	5197.39%	-115.42%
Depreciation, Depletion And Amortization	$57.07M	$57.80M	$54.53M
YoY Change	21.59%	19.42%	9.13%
Cash From Operating Activities	$83.57M	$85.30M	$67.70M
YoY Change	27.29%	101.65%	3.99%
INVESTING ACTIVITIES
Capital Expenditures	$90.25M	$88.20M	$59.50M
YoY Change	139.79%	174.77%	95.72%
Acquisitions	$0.00
YoY Change	-100.0%
Other Investing Activities	$22.10M	-$1.000M	-$1.900M
YoY Change		-103.48%	-1050.0%
Cash From Investing Activities	-$68.17M	-$89.20M	-$61.40M
YoY Change	134.82%	2448.57%	103.99%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$15.35M	3.800M	-6.400M
YoY Change	-47.15%	-109.77%	-81.71%
NET CHANGE
Cash From Operating Activities	$83.57M	85.30M	67.70M
Cash From Investing Activities	-$68.17M	-89.20M	-61.40M
Cash From Financing Activities	-$15.35M	3.800M	-6.400M
Net Change In Cash	$51.00K	-100.0K	-100.0K
YoY Change	-99.33%	0.0%	-298261617777761.2%
FREE CASH FLOW
Cash From Operating Activities	$83.57M	$85.30M	$67.70M
Capital Expenditures	$90.25M	$88.20M	$59.50M
Free Cash Flow	-$6.681M	-$2.900M	$8.200M
YoY Change	-123.85%	-128.43%	-76.37%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018	dei	Entity Registrant Name EntityRegistrantName	UNIT CORP
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CY2018	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	196492000	USD
CY2017	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	174720000	USD
CY2016	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	122086000	USD
CY2018	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	223730000	USD
CY2017	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	207176000	USD
CY2016	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	185870000	USD
CY2018	us-gaap	Revenues Revenues	843281000	USD
CY2017	us-gaap	Revenues Revenues	739640000	USD
CY2016	us-gaap	Revenues Revenues	602177000	USD
CY2018	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	131675000	USD
CY2017	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	130789000	USD
CY2016	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	120184000	USD
CY2018	us-gaap	Cost Of Services Oil And Gas CostOfServicesOilAndGas	131385000	USD
CY2017	us-gaap	Cost Of Services Oil And Gas CostOfServicesOilAndGas	122600000	USD
CY2016	us-gaap	Cost Of Services Oil And Gas CostOfServicesOilAndGas	88154000	USD
CY2018	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	167836000	USD
CY2017	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	155483000	USD
CY2016	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	137609000	USD
CY2018	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	430896000	USD
CY2017	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	408872000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	243605000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	209257000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	208353000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	147884000	USD
CY2017	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	161563000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	38707000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	38087000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	33337000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	704000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	327000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	2540000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	860388000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	655889000	USD
CY2016	us-gaap	Costs And Expenses CostsAndExpenses	746660000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-17107000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	83751000	USD
CY2016	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-144483000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-33494000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-38334000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-39829000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-3184000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	14732000	USD
CY2016	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-22813000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	22000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	21000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	307000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-36656000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-23581000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-62335000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-53763000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	60170000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-206818000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-3131000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10865000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-57683000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-71209000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13996000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57678000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-71194000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	117848000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-135624000	USD
CY2018	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	5521000	USD
CY2017	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2016	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-45288000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	117848000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-135624000	USD
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.87
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.31
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.71
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.87
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.28
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.71
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	117848000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-135624000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-557000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	63000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-40324000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	117911000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-135624000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5521000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-45845000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	117911000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-135624000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1313580000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-135624000	USD
CY2016	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	16114000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1194070000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	117848000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	63000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	117911000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	18623000	USD
CY2017	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	14956000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1345560000	USD
CY2017Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-1261000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-557000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-40324000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	300000000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-2503000	USD
CY2018	unt	Tax Effect On Sale Of Noncontrolling Interest TaxEffectOnSaleOfNoncontrollingInterest	-27453000	USD
CY2018	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	19425000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1593444000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	117848000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-135624000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	243605000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	209257000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	208353000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	147884000	USD
CY2017	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	161563000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2198000	USD
CY2017	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2159000	USD
CY2016	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2122000	USD
CY2018	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-3184000	USD
CY2017	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	14732000	USD
CY2016	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-22813000	USD
CY2018	us-gaap	Derivative Cash Received On Hedge DerivativeCashReceivedOnHedge	22803000	USD
CY2017	us-gaap	Derivative Cash Received On Hedge DerivativeCashReceivedOnHedge	-173000	USD
CY2016	us-gaap	Derivative Cash Received On Hedge DerivativeCashReceivedOnHedge	-9658000	USD
CY2018	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	704000	USD
CY2017	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	327000	USD
CY2016	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	3127000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10865000	USD
CY2017	us-gaap	Accretion Expense AccretionExpense	2886000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-57683000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-71209000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	22899000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	17747000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	13812000	USD
CY2018	us-gaap	Provision For Other Losses ProvisionForOtherLosses	81000	USD
CY2017	us-gaap	Provision For Other Losses ProvisionForOtherLosses	348000	USD
CY2016	us-gaap	Provision For Other Losses ProvisionForOtherLosses	785000	USD
CY2018	us-gaap	Accretion Expense AccretionExpense	2393000	USD
CY2016	us-gaap	Accretion Expense AccretionExpense	2779000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	4970000	USD
CY2017	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	0	USD
CY2016	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	0	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2032000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	865000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	6037000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	12955000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	32073000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	11796000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-32000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2835000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-225000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	4950000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-1527000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-2585000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	26272000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	8192000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	27400000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-3724000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	6996000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-4388000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-1993000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	38000	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	20903000	USD
CY2018	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-90000	USD
CY2017	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	1630000	USD
CY2016	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-687000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	347759000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	265956000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	240130000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	446282000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	255553000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	186149000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	29970000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	58026000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	564000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	25910000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	21713000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	371600000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	74823000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1500000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-919000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-450342000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-293366000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-110971000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	99100000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	343900000	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	251398000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	277100000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	326700000	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3843000	USD
CY2017	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3694000	USD
CY2016	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3694000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	18623000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-376000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	300000000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2016	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2503000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2018	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-7320000	USD
CY2017	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-4911000	USD
CY2016	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-4829000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	108334000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	27218000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-129101000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	5751000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-192000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	58000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	893000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	835000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6452000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	893000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	34535000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	33931000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	35690000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3600000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	42000	USD
CY2018	unt	Increase Decrease In Accounts Payable Related To Purchases Of Property Plant And Equipment IncreaseDecreaseInAccountsPayableRelatedToPurchasesOfPropertyPlantAndEquipment	-18119000	USD
CY2017	unt	Increase Decrease In Accounts Payable Related To Purchases Of Property Plant And Equipment IncreaseDecreaseInAccountsPayableRelatedToPurchasesOfPropertyPlantAndEquipment	-20574000	USD
CY2016	unt	Increase Decrease In Accounts Payable Related To Purchases Of Property Plant And Equipment IncreaseDecreaseInAccountsPayableRelatedToPurchasesOfPropertyPlantAndEquipment	21190000	USD
CY2018	us-gaap	Settlement Of Asset Retirement Obligations Through Noncash Payments Amount SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount	7629000	USD
CY2017	us-gaap	Settlement Of Asset Retirement Obligations Through Noncash Payments Amount SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount	3613000	USD
CY2016	us-gaap	Settlement Of Asset Retirement Obligations Through Noncash Payments Amount SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount	30897000	USD
CY2018	us-gaap	Use Of Estimates UseOfEstimates	The preparation of financial statements in conformity with generally accepted accounting principles (GAAP) 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 results could differ from those estimates.
CY2018	unt	Numberof Contracts Daywork Expiringin Next Fiscal Year NumberofContractsDayworkExpiringinNextFiscalYear	17	contract
CY2018	unt	Numberof Contracts Daywork Expiringin Two Years NumberofContractsDayworkExpiringinTwoYears	7	contract
CY2018Q4	us-gaap	Bank Overdrafts BankOverdrafts	5100000	USD
CY2017Q4	us-gaap	Bank Overdrafts BankOverdrafts	12400000	USD
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Financial instruments, which potentially subject us to concentrations of credit risk, consist primarily of trade receivables with a variety of oil and natural gas companies. We do not generally require collateral related to receivables. Our credit risk is considered to be limited due to the large number of customers comprising our customer base. Below are the third-party customers that accounted for more than 10% of our segment’s revenues: <div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"/><td style="width:58.588235%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:10.647059%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.647059%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.647059%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2017</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2016</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Oil and Natural Gas:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">CVR Refining, LP</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">— </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Valero Energy Corporation</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">9 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Energy Transfer Partners (formerly Sunoco Logistics Partners)</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">24 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Drilling:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">QEP Resources, Inc.</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">16 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">28 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Slawson Exploration Company, Inc</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Whiting Petroleum Corp. (formerly Kodiak Oil and Gas Corp.)</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">18 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Mid-Stream:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">ONEOK, Inc.</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">45 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">36 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">30 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Range Resources Corporation</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">9 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Koch Energy Services, LLC</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:18pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Tenaska Resources, LLC</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10 </span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr></table></div><div style="text-indent:24pt;"><span><br/></span></div><div style="text-indent:24pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We had a concentration of cash of $11.0 million and $11.4 million at December 31, 2018 and 2017, respectively with one bank.</span></div><div style="text-indent:24pt;"><span><br/></span></div><div style="text-indent:24pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The use of derivative transactions also involves the risk that the counterparties will be unable to meet the financial terms of the transactions. We considered this non-performance risk with regard to our counterparties and our own non-performance risk in our derivative valuation at December 31, 2018 and determined there was no material risk at that time. At December 31, 2018, the fair values of the net assets (liabilities) we had with each of the counterparties with respect to all of our commodity derivative transactions are listed in the table below: </span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:81.625731%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:14.374269%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"> </span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">12/31/2018</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"> </span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:8pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(In millions)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Bank of Montreal</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">9.9 </span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Bank of America Merrill Lynch</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2.7 </span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total net assets</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:9pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">12.6 </span></td></tr></table></div>
CY2018Q4	us-gaap	Fair Value Concentration Of Risk Cash And Cash Equivalents FairValueConcentrationOfRiskCashAndCashEquivalents	11000000.0	USD
CY2017Q4	us-gaap	Fair Value Concentration Of Risk Cash And Cash Equivalents FairValueConcentrationOfRiskCashAndCashEquivalents	11400000	USD
CY2018Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	12600000	USD
CY2018Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	22500000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	16500000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15900000	USD
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15300000	USD
CY2016	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018	unt	Percentagefairvalueexceedscarryingvalueforgoodwill Percentagefairvalueexceedscarryingvalueforgoodwill	0.37
CY2018Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	400000	USD
CY2018Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	15900000	USD
CY2017Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	14800000	USD
CY2016Q4	us-gaap	Capitalized Costs Wells And Related Equipment And Facilities CapitalizedCostsWellsAndRelatedEquipmentAndFacilities	15400000	USD
CY2018	unt	Oil And Gas Properties Average Depreciation Depletion And Amortization Rate OilAndGasPropertiesAverageDepreciationDepletionAndAmortizationRate	7.50	USD
CY2017	unt	Oil And Gas Properties Average Depreciation Depletion And Amortization Rate OilAndGasPropertiesAverageDepreciationDepletionAndAmortizationRate	6.00	USD
CY2016	unt	Oil And Gas Properties Average Depreciation Depletion And Amortization Rate OilAndGasPropertiesAverageDepreciationDepletionAndAmortizationRate	6.24	USD
CY2018	unt	Oil And Gas Property Full Cost Method Discount Percentage OilAndGasPropertyFullCostMethodDiscountPercentage	0.10
CY2016Q4	unt	Capitalizedcostsofunprovedpropertiesincludedinamortizationcumulative Capitalizedcostsofunprovedpropertiesincludedinamortizationcumulative	7600000	USD
CY2017Q4	unt	Capitalizedcostsofunprovedpropertiesincludedinamortizationcumulative Capitalizedcostsofunprovedpropertiesincludedinamortizationcumulative	10500000	USD
CY2018Q4	unt	Capitalizedcostsofunprovedpropertiesincludedinamortizationcumulative Capitalizedcostsofunprovedpropertiesincludedinamortizationcumulative	0	USD
CY2018	unt	Revenuesfromtransactionswithoperatingsegmentsofsameentity Revenuesfromtransactionswithoperatingsegmentsofsameentity	22500000	USD
CY2017	unt	Revenuesfromtransactionswithoperatingsegmentsofsameentity Revenuesfromtransactionswithoperatingsegmentsofsameentity	13400000	USD
CY2018	unt	Eliminated Associated Operating Expense EliminatedAssociatedOperatingExpense	19500000	USD
CY2017	unt	Eliminated Associated Operating Expense EliminatedAssociatedOperatingExpense	11800000	USD
CY2018	unt	Eliminated Yielding EliminatedYielding	3000000.0	USD
CY2017	unt	Eliminated Yielding EliminatedYielding	1600000	USD
CY2016	unt	Revenuesfromtransactionswithoperatingsegmentsofsameentity Revenuesfromtransactionswithoperatingsegmentsofsameentity	0	USD
CY2018	unt	Number Of Oil And Gas Limited Partnerships NumberOfOilAndGasLimitedPartnerships	13	Partnerships
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-81300000	USD
CY2018Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	-3300000	USD
CY2018	us-gaap	Oil And Gas Revenue OilAndGasRevenue	423059000	USD
CY2018	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	131675000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	16230000	USD
CY2018Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	27028000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	13002000	USD
CY2018Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	15750000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	100203000	USD
CY2018Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	109940000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	133477000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	133064000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	799402000	USD
CY2018Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	798128000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	11356000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	27816000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	14250000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	101234000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	144748000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	752840000	USD
CY2018Q4	unt	Discountratecapitalleases Discountratecapitalleases	0.040
CY2018	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	223730000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10865000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2018	us-gaap	Variable Interest Entity Qualitative Or Quantitative Information Date Involvement Began1 VariableInterestEntityQualitativeOrQuantitativeInformationDateInvolvementBegan1	2018-04-03
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-135624000	USD
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50029000	shares
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.71
CY2016	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	117848000	USD
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51748000	shares
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.28
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2016	unt	Incremental Per Share Effect Of Dilutive Income Changes Over Dilutive Share Changes IncrementalPerShareEffectOfDilutiveIncomeChangesOverDilutiveShareChanges	0
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-135624000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50029000	shares
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.71
CY2017	us-gaap	Net Income Loss NetIncomeLoss	117848000	USD
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51113000	shares
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.31
CY2017	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	635000	shares
CY2017	unt	Incremental Per Share Effect Of Dilutive Income Changes Over Dilutive Share Changes IncrementalPerShareEffectOfDilutiveIncomeChangesOverDilutiveShareChanges	-0.03
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-45288000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51981000	shares
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.87
CY2018	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2018	unt	Incremental Per Share Effect Of Dilutive Income Changes Over Dilutive Share Changes IncrementalPerShareEffectOfDilutiveIncomeChangesOverDilutiveShareChanges	0
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-45288000	USD
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51981000	shares
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.87
CY2018Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	22056000	USD
CY2018	us-gaap	Debt Instrument Maturity Date DebtInstrumentMaturityDate	2021-05-15
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Executory Costs CapitalLeasesFutureMinimumPaymentsExecutoryCosts	4100000	USD
CY2017Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	19521000	USD
CY2018Q4	unt	Accrued Oil And Gas Production Expense Current AccruedOilAndGasProductionExpenseCurrent	12756000	USD
CY2017Q4	unt	Accrued Oil And Gas Production Expense Current AccruedOilAndGasProductionExpenseCurrent	11819000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	6635000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	6745000	USD
CY2018Q4	unt	Thirdpartycredits Thirdpartycredits	2129000	USD
CY2017Q4	unt	Thirdpartycredits Thirdpartycredits	2240000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1378000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3404000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	4710000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	4794000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	49664000	USD
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	48523000	USD
CY2017Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	2234000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3902000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	5490000	USD
CY2018Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	650000000	USD
CY2017Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	650000000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	650000000	USD
CY2017Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	828000000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1623000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	644475000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	820276000	USD
CY2018	us-gaap	Variable Interest Entity Qualitative Or Quantitative Information Date Involvement Began1 VariableInterestEntityQualitativeOrQuantitativeInformationDateInvolvementBegan1	2018-04-03
CY2018Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	650000000.0	USD
CY2018Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.06625
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	600000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	5132000	USD
CY2018	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	14700000	USD
CY2018	unt	Senior Notes Repurchase Price In Percentage SeniorNotesRepurchasePriceInPercentage	1.01
CY2018	us-gaap	Debt Instrument Covenant Compliance DebtInstrumentCovenantCompliance	We were in compliance with all covenants of the Notes
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	64208000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	69444000	USD
CY2018Q4	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	12738000	USD
CY2017Q4	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	13340000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	11380000	USD
CY2017Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	15224000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	9881000	USD
CY2017Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	USD
CY2018Q4	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	8814000	USD
CY2017Q4	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	6524000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	14250000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	13002000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	101234000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	5390000	USD
CY2018Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	-3331000	USD
CY2017Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	-3283000	USD
CY2018Q4	us-gaap	Other Liabilities OtherLiabilities	115484000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	113205000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	100203000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	14200000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	9400000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	692000000.0	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	3900000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	2200000	USD
CY2018	unt	Numberofcompressorsundercapitalleaseagreement Numberofcompressorsundercapitalleaseagreement	20
CY2018Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	4000000.0	USD
CY2018Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	7400000	USD
CY2018Q4	unt	Capitalleasesfutureminimumpaymentsaverageannualpayment Capitalleasesfutureminimumpaymentsaverageannualpayment	4300000	USD
CY2018	unt	Capitalleasefairmarketvaluepercentageforpurchase Capitalleasefairmarketvaluepercentageforpurchase	0.10
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	6168000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	6168000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	3768000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	16104000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Executory Costs CapitalLeasesFutureMinimumPaymentsExecutoryCosts	4089000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	635000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	11380000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	69444000	USD
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	70170000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2393000	USD
CY2017	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2886000	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	2632000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1948000	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	4493000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	2694000	USD
CY2018	unt	Asset Retirement Obligation Liabilities Sold AssetRetirementObligationLiabilitiesSold	281000	USD
CY2017	unt	Asset Retirement Obligation Liabilities Sold AssetRetirementObligationLiabilitiesSold	1735000	USD
CY2018	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	5487000	USD
CY2017	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	1131000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	64208000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	69444000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	1437000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	1726000	USD
CY2018Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	62771000	USD
CY2017Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	67718000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-81300000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57700000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-11290000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	21059000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-72386000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1882000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1655000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-5687000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-81307000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	424000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	1867000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	5465000	USD
CY2018	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	-1138000	USD
CY2017	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	0	USD
CY2016	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	0	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-110000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-952000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	1414000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13996000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57678000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-71194000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1835000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-1296000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	15000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-3131000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-8286000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10865000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-57683000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	144748000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	133477000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8741000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-62788000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-62923000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2124000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5105000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-71209000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13996000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57678000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-71194000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	0	USD
CY2018Q4	unt	Deferred Tax Assets Tax Deferred Expense Allowance For Losses And Nondeductible Accruals DeferredTaxAssetsTaxDeferredExpenseAllowanceForLossesAndNondeductibleAccruals	27953000	USD
CY2017Q4	unt	Deferred Tax Assets Tax Deferred Expense Allowance For Losses And Nondeductible Accruals DeferredTaxAssetsTaxDeferredExpenseAllowanceForLossesAndNondeductibleAccruals	32242000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	152112000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	153746000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	3574000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	5409000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	183639000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	191397000	USD
CY2018Q4	unt	Deferred Tax Liability Depreciation Depletion Amortization And Impairment DeferredTaxLiabilityDepreciationDepletionAmortizationAndImpairment	291542000	USD
CY2017Q4	unt	Deferred Tax Liability Depreciation Depletion Amortization And Impairment DeferredTaxLiabilityDepreciationDepletionAmortizationAndImpairment	324874000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	36845000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	0	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	144748000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	133477000	USD
CY2018Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	576900000	USD
CY2018	unt	Operating Loss Carryforwards Expiration OperatingLossCarryforwardsExpiration	expire from 2021 to 2037
CY2018Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	5100000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	5400000	USD
CY2018	unt	Number Of Oil And Gas Limited Partnerships For Employee Investment NumberOfOilAndGasLimitedPartnershipsForEmployeeInvestment	13	Partnerships
CY2018	unt	Well Supervision And Other Fees WellSupervisionAndOtherFees	158000	USD
CY2017	unt	Well Supervision And Other Fees WellSupervisionAndOtherFees	172000	USD
CY2016	unt	Well Supervision And Other Fees WellSupervisionAndOtherFees	254000	USD
CY2018	unt	General And Administrative Expense Reimbursement GeneralAndAdministrativeExpenseReimbursement	0	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	13300000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9600000	USD
CY2017	unt	General And Administrative Expense Reimbursement GeneralAndAdministrativeExpenseReimbursement	0	USD
CY2016	unt	General And Administrative Expense Reimbursement GeneralAndAdministrativeExpenseReimbursement	6000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17800000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2100000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1800000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2100000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4400000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5000000.0	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3600000	USD
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	16100000	USD
CY2018Q4	unt	Employee Service Share Based Compensation Allocation Of Unrecognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfUnrecognizedPeriodCostsCapitalizedAmount	1900000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P0Y9M18D
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	721000	USD
CY2018Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	0	USD
CY2018Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	12870000	USD
CY2017Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	721000	USD
CY2018Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	0	USD
CY2017Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	0	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	12870000	USD
CY2017Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	7763000	USD
CY2018Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	293000	USD
CY2017Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	0	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	293000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	7763000	USD
CY2018	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-3184000	USD
CY2017	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	14732000	USD
CY2018	unt	Paymentsforproceedsfromderivativeinstrumentoperatingactivities Paymentsforproceedsfromderivativeinstrumentoperatingactivities	-22803000	USD
CY2017	unt	Paymentsforproceedsfromderivativeinstrumentoperatingactivities Paymentsforproceedsfromderivativeinstrumentoperatingactivities	173000	USD
CY2018Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2018Q4	unt	Transfersbetween Level2and Level3assetsliabilities TransfersbetweenLevel2andLevel3assetsliabilities	0	USD
CY2017Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	-206000	USD
CY2016Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	-7122000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	4159000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	7791000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements	6677000	USD
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements	-875000	USD
CY2018Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	10630000	USD
CY2017Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	-206000	USD
CY2018	unt	Total Gains Losses For Period Included In Earnings Attributable To Change In Gain Loss Relating To Assets TotalGainsLossesForPeriodIncludedInEarningsAttributableToChangeInGainLossRelatingToAssets	10836000	USD
CY2017	unt	Total Gains Losses For Period Included In Earnings Attributable To Change In Gain Loss Relating To Assets TotalGainsLossesForPeriodIncludedInEarningsAttributableToChangeInGainLossRelatingToAssets	6916000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	4600000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	1700000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	400000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	9900000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8800000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	11100000	USD
CY2018	unt	Numberofcompressorsundercapitalleaseagreement Numberofcompressorsundercapitalleaseagreement	20
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	6200000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	3800000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Executory Costs CapitalLeasesFutureMinimumPaymentsExecutoryCosts	4100000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	600000	USD
CY2018Q4	unt	Capitalleasesfutureminimumpaymentsaverageannualpayment Capitalleasesfutureminimumpaymentsaverageannualpayment	4300000	USD
CY2018	unt	Capitalleasefairmarketvaluepercentageforpurchase Capitalleasefairmarketvaluepercentageforpurchase	0.10
CY2018	unt	Percentageofrepurchaseoflimitedunitsoutstanding Percentageofrepurchaseoflimitedunitsoutstanding	0.20
CY2018	unt	Repurchase Of Limited Units Outstanding Amount RepurchaseOfLimitedUnitsOutstandingAmount	1700	USD
CY2017	unt	Repurchase Of Limited Units Outstanding Amount RepurchaseOfLimitedUnitsOutstandingAmount	2900	USD
CY2016	unt	Repurchase Of Limited Units Outstanding Amount RepurchaseOfLimitedUnitsOutstandingAmount	5000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	18600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-738000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	102000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-181000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	39000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-557000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	63000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	63000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	76000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	-557000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	63000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-557000	USD
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	63000	USD
CY2016	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	0	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-481000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	63000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018	us-gaap	Oil And Gas Revenue OilAndGasRevenue	423059000	USD
CY2018	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	196492000	USD
CY2018	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	223730000	USD
CY2018	us-gaap	Revenues Revenues	843281000	USD
CY2018	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	131675000	USD
CY2018	us-gaap	Cost Of Services Oil And Gas CostOfServicesOilAndGas	131385000	USD
CY2018	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	167836000	USD
CY2018	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	430896000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	243605000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	147884000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	822385000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	38707000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	704000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-17107000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-3184000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-33494000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	22000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-53763000	USD
CY2018Q4	unt	Oil And Natural Gas Identifiable Assets OilAndNaturalGasIdentifiableAssets	1350830000	USD
CY2018Q4	unt	Contract Drilling Identifiable Assets ContractDrillingIdentifiableAssets	806611000	USD
CY2018Q4	unt	Gas Gathering And Processing Identifiable Assets GasGatheringAndProcessingIdentifiableAssets	461828000	USD
CY2018Q4	unt	Total Identifiable Assets TotalIdentifiableAssets	2619269000	USD
CY2018Q4	unt	Corporatelandandbuildingnet Corporatelandandbuildingnet	55505000	USD
CY2018Q4	unt	Corporate Assets CorporateAssets	23279000	USD
CY2018Q4	us-gaap	Assets Assets	2698053000	USD
CY2018	unt	Total Capital Expenditures TotalCapitalExpenditures	488780000	USD
CY2017	us-gaap	Oil And Gas Revenue OilAndGasRevenue	357744000	USD
CY2017	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	174720000	USD
CY2017	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	207176000	USD
CY2017	us-gaap	Revenues Revenues	739640000	USD
CY2017	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	130789000	USD
CY2017	us-gaap	Cost Of Services Oil And Gas CostOfServicesOilAndGas	122600000	USD
CY2017	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	155483000	USD
CY2017	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	408872000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	209257000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	618129000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	38087000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	327000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	83751000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	14732000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-38334000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	21000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	60170000	USD
CY2017Q4	unt	Oil And Natural Gas Identifiable Assets OilAndNaturalGasIdentifiableAssets	1127900000	USD
CY2017Q4	unt	Contract Drilling Identifiable Assets ContractDrillingIdentifiableAssets	933063000	USD
CY2017Q4	unt	Gas Gathering And Processing Identifiable Assets GasGatheringAndProcessingIdentifiableAssets	438571000	USD
CY2017Q4	unt	Total Identifiable Assets TotalIdentifiableAssets	2499534000	USD
CY2017Q4	unt	Corporatelandandbuildingnet Corporatelandandbuildingnet	56854000	USD
CY2017Q4	unt	Corporate Assets CorporateAssets	25064000	USD
CY2017Q4	us-gaap	Assets Assets	2581452000	USD
CY2017	unt	Total Capital Expenditures TotalCapitalExpenditures	332280000	USD
CY2016	us-gaap	Oil And Gas Revenue OilAndGasRevenue	294221000	USD
CY2016	us-gaap	Revenue Oil And Gas Services RevenueOilAndGasServices	122086000	USD
CY2016	us-gaap	Gas Gathering Transportation Marketing And Processing Revenue GasGatheringTransportationMarketingAndProcessingRevenue	185870000	USD
CY2016	us-gaap	Revenues Revenues	602177000	USD
CY2016	us-gaap	Oil And Gas Production Expense OilAndGasProductionExpense	120184000	USD
CY2016	us-gaap	Cost Of Services Oil And Gas CostOfServicesOilAndGas	88154000	USD
CY2016	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	137609000	USD
CY2016	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	345947000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	208353000	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	161563000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	715863000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	33337000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	2540000	USD
CY2016	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-144483000	USD
CY2016	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-22813000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-39829000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	307000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-206818000	USD
CY2016Q4	unt	Oil And Natural Gas Identifiable Assets OilAndNaturalGasIdentifiableAssets	965159000	USD
CY2016Q4	unt	Contract Drilling Identifiable Assets ContractDrillingIdentifiableAssets	941676000	USD
CY2016Q4	unt	Gas Gathering And Processing Identifiable Assets GasGatheringAndProcessingIdentifiableAssets	461600000	USD
CY2016Q4	unt	Total Identifiable Assets TotalIdentifiableAssets	2368435000	USD
CY2016Q4	unt	Corporatelandandbuildingnet Corporatelandandbuildingnet	58188000	USD
CY2016Q4	unt	Corporate Assets CorporateAssets	52680000	USD
CY2016Q4	us-gaap	Assets Assets	2479303000	USD
CY2016	unt	Total Capital Expenditures TotalCapitalExpenditures	142155000	USD
CY2017Q1	us-gaap	Revenues Revenues	175724000	USD
CY2017Q2	us-gaap	Revenues Revenues	170581000	USD
CY2017Q3	us-gaap	Revenues Revenues	188488000	USD
CY2017Q4	us-gaap	Revenues Revenues	204847000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	32657000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	24462000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	27181000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	37211000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	15929000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	9059000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	3705000	USD
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.74
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	89155000	USD
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.17
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
CY2018Q1	us-gaap	Revenues Revenues	205132000	USD
CY2018Q2	us-gaap	Revenues Revenues	203303000	USD
CY2018Q3	us-gaap	Revenues Revenues	220058000	USD
CY2018Q4	us-gaap	Revenues Revenues	214788000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	38833000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	40915000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	49216000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	-108068000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	7865000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	5788000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	18899000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-77840000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.36
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.49
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.36
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.49
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6452000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	119397000	USD
CY2018Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	473000	USD
CY2018Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	12870000	USD
CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2054000	USD
CY2018Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	22511000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	11356000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	175113000	USD
CY2018Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	6018568000	USD
CY2018Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	330216000	USD
CY2018Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	1284419000	USD
CY2018Q4	unt	Natural Gas Gathering Systems And Treating Plants NaturalGasGatheringSystemsAndTreatingPlants	767388000	USD
CY2018Q4	unt	Saltwaterdisposalsystems Saltwaterdisposalsystems	68339000	USD
CY2018Q4	us-gaap	Land Land	59081000	USD
CY2018Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	29524000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	57507000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8615042000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	62808000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	6182726000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2432316000	USD
CY2018Q4	unt	Intercompany Receivable IntercompanyReceivable	0	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1500000	USD
CY2018Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	26316000	USD
CY2018Q4	us-gaap	Assets Assets	2698053000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	149945000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	49664000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	14250000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	213859000	USD
CY2018Q4	unt	Intercompany Debt IntercompanyDebt	0	USD
CY2018Q4	us-gaap	Subordinated Long Term Debt SubordinatedLongTermDebt	644475000	USD
CY2018Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	293000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	101234000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	144748000	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	10414000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	628108000	USD
CY2018Q4	unt	Contributions From Parent To Joint Venture ContributionsFromParentToJointVenture	0	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	119672000	USD
CY2017Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	5712813000	USD
CY2017Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	296764000	USD
CY2017Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	1593611000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-481000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	752840000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1390881000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	202563000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1593444000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2698053000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	111512000	USD
CY2017Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	505000	USD
CY2017Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	721000	USD
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	61000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	6172000	USD
CY2017Q4	unt	Saltwaterdisposalsystems Saltwaterdisposalsystems	62618000	USD
CY2017Q4	unt	Natural Gas Gathering Systems And Treating Plants NaturalGasGatheringSystemsAndTreatingPlants	726236000	USD
CY2017Q4	us-gaap	Land Land	59080000	USD
CY2017Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	29631000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	53439000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8534192000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	6151450000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2382742000	USD
CY2017Q4	unt	Intercompany Receivable IntercompanyReceivable	0	USD
CY2017Q4	us-gaap	Goodwill Goodwill	62808000	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1500000	USD
CY2017Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	14730000	USD
CY2017Q4	us-gaap	Assets Assets	2581452000	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	112648000	USD
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	48523000	USD
CY2017Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	7763000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	13002000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	181936000	USD
CY2017Q4	us-gaap	Subordinated Long Term Debt SubordinatedLongTermDebt	642276000	USD
CY2017Q4	unt	Intercompany Debt IntercompanyDebt	0	USD
CY2017Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	178000000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	100203000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	133477000	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	10280000	USD
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	535815000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	63000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	799402000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1345560000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	0	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1345560000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2581452000	USD
CY2018	us-gaap	Revenues Revenues	843281000	USD
CY2018	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	430896000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	243605000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	147884000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	38707000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	704000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	860388000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-17107000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-33494000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-3184000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	22000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-53763000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13996000	USD
CY2018	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2018	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	5521000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-45288000	USD
CY2017	us-gaap	Revenues Revenues	739640000	USD
CY2017	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	408872000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	209257000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	38087000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	327000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	655889000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	83751000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-38334000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	14732000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	21000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	60170000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57678000	USD
CY2017	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2017	us-gaap	Profit Loss ProfitLoss	117848000	USD
CY2017	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	117848000	USD
CY2016	us-gaap	Revenues Revenues	602177000	USD
CY2016	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	345947000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	208353000	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	161563000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	33337000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	2540000	USD
CY2016	us-gaap	Costs And Expenses CostsAndExpenses	746660000	USD
CY2016	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-144483000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-39829000	USD
CY2016	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-22813000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	307000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-206818000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-71194000	USD
CY2016	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-135624000	USD
CY2016	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-135624000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-39767000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-557000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-40324000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5521000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-45845000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	117848000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	63000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	117911000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	117911000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-135624000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-135624000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-135624000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	347759000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	446282000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	29970000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	25910000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-450342000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	99100000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	277100000	USD
CY2018	unt	Intercompany Borrowings Advances IntercompanyBorrowingsAdvances	0	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3843000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	300000000	USD
CY2018	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2503000	USD
CY2018	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-7320000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	108334000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	5751000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6452000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	265956000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	255553000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	58026000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	21713000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1500000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-293366000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	343900000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	326700000	USD
CY2017	unt	Intercompany Borrowings Advances IntercompanyBorrowingsAdvances	0	USD
CY2017	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3694000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	18623000	USD
CY2017	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-4911000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	27218000	USD
CY2016	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3694000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-376000	USD
CY2016	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-4829000	USD
CY2018	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	131328000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-192000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	893000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	240130000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	186149000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	564000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	74823000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-919000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-110971000	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	251398000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	371600000	USD
CY2016	unt	Intercompany Borrowings Advances IntercompanyBorrowingsAdvances	0	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-129101000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	58000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	835000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	893000	USD
CY2018Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	6018568000	USD
CY2017Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	5712813000	USD
CY2016Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	5446305000	USD
CY2018Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	330216000	USD
CY2017Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	296764000	USD
CY2016Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	314867000	USD
CY2018Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	6348784000	USD
CY2017Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	6009577000	USD
CY2016Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	5761172000	USD
CY2018Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	5124257000	USD
CY2017Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	4996696000	USD
CY2016Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	4900304000	USD
CY2018Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	1224527000	USD
CY2017Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	1012881000	USD
CY2016Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	860868000	USD
CY2018	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	57430000	USD
CY2017	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	47029000	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	21675000	USD
CY2018	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	15158000	USD
CY2017	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	47638000	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	564000	USD
CY2018	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	15907000	USD
CY2017	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	14811000	USD
CY2016	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	17325000	USD
CY2018	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	280692000	USD
CY2017	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	160941000	USD
CY2016	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	80582000	USD
CY2018	unt	Costs Incurred In Asset Retirement Obligation CostsIncurredInAssetRetirementObligation	-7629000	USD
CY2017	unt	Costs Incurred In Asset Retirement Obligation CostsIncurredInAssetRetirementObligation	-3613000	USD
CY2016	unt	Costs Incurred In Asset Retirement Obligation CostsIncurredInAssetRetirementObligation	-30906000	USD
CY2018	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	361558000	USD
CY2017	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	266806000	USD
CY2016	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	89240000	USD
CY2018Q4	us-gaap	Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative	330216000	USD
CY2018	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	429119000	USD
CY2017	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	347285000	USD
CY2016	us-gaap	Results Of Operations Revenue From Oil And Gas Producing Activities ResultsOfOperationsRevenueFromOilAndGasProducingActivities	282742000	USD
CY2016	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	103568000	USD
CY2017	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	80537000	USD
CY2016	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	-62285000	USD
CY2017	us-gaap	Results Of Operations Production Or Lifting Costs ResultsOfOperationsProductionOrLiftingCosts	113344000	USD
CY2018	us-gaap	Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions	132923000	USD
CY2017	us-gaap	Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions	101326000	USD
CY2016	us-gaap	Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions	274155000	USD
CY2018	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	164868000	USD
CY2017	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	132615000	USD
CY2016	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	-94981000	USD
CY2018	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	42915000	USD
CY2017	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	52078000	USD
CY2016	us-gaap	Results Of Operations Income Tax Expense ResultsOfOperationsIncomeTaxExpense	-32696000	USD
CY2018	us-gaap	Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts	121953000	USD
CY2015Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	135233000	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-8300000	MBoe
CY2016	unt	Proved Developed And Undeveloped Reserves Infill Reserves In Existing Proved Fields Energy ProvedDevelopedAndUndevelopedReservesInfillReservesInExistingProvedFieldsEnergy	7504000	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	5690000	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	262000	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	17277000	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	5338000	MBoe
CY2016Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	117774000	MBoe
CY2015Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	115296000	MBoe
CY2016Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	99079000	MBoe
CY2015Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	19937000	MBoe
CY2016Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	18695000	MBoe
CY2016Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	117774000	MBoe
CY2017	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	11444000	MBoe
CY2017	us-gaap	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	14975000	MBoe
CY2017	unt	Proved Developed And Undeveloped Reserves Infill Reserves In Existing Proved Fields Energy ProvedDevelopedAndUndevelopedReservesInfillReservesInExistingProvedFieldsEnergy	16123000	MBoe
CY2017	us-gaap	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	5768000	MBoe
CY2017	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	15996000	MBoe
CY2017	us-gaap	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	314000	MBoe
CY2018	us-gaap	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	1254000	MBoe
CY2018Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	159681000	MBoe
CY2017Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	149774000	MBoe
CY2016Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	99079000	MBoe
CY2017Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	112961000	MBoe
CY2016Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	18695000	MBoe
CY2017Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	36813000	MBoe
CY2017Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	149774000	MBoe
CY2018	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-4165000	MBoe
CY2018	us-gaap	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	21033000	MBoe
CY2018	unt	Proved Developed And Undeveloped Reserves Infill Reserves In Existing Proved Fields Energy ProvedDevelopedAndUndevelopedReservesInfillReservesInExistingProvedFieldsEnergy	8656000	MBoe
CY2018	us-gaap	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	2707000	MBoe
CY2018	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	17070000	MBoe
CY2017Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	112961000	MBoe
CY2018Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	111576000	MBoe
CY2017Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	36813000	MBoe
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	854102000	USD
CY2018Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	766047000	USD
CY2018Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	307916000	USD
CY2018Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	48105000	MBoe
CY2018Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	3980369000	USD
CY2017Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	3347396000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	2030925000	USD
CY2018Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	1479744000	USD
CY2017Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	1308244000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	861625000	USD
CY2018Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	442984000	USD
CY2017Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	369560000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	173446000	USD
CY2017Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	234152000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	141752000	USD
CY2018Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1749725000	USD
CY2017Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1435440000	USD
CY2017Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	628270000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	335892000	USD
CY2018Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	983678000	USD
CY2017Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	807170000	USD
CY2016Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	518210000	USD
CY2018	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-297791000	USD
CY2017	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-239953000	USD
CY2016	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	-173920000	USD
CY2018	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	120062000	USD
CY2017	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	236126000	USD
CY2016	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-94026000	USD
CY2018	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-33282000	USD
CY2017	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	87239000	USD
CY2016	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-51979000	USD
CY2018	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	234172000	USD
CY2017	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	1447000	USD
CY2017	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	102965000	USD
CY2016	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	84738000	USD
CY2018	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	19535000	USD
CY2017	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-5194000	USD
CY2016	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	70976000	USD
CY2018	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	63557000	USD
CY2017	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	36044000	USD
CY2016	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	16602000	USD
CY2018	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	23416000	USD
CY2017	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	51686000	USD
CY2016	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	2652000	USD
CY2018	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	5004000	USD
CY2016	us-gaap	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	17248000	USD
CY2018	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	89753000	USD
CY2017	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	57517000	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	69069000	USD
CY2018	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-31674000	USD
CY2017	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-33389000	USD
CY2016	us-gaap	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	44241000	USD
CY2018	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-6236000	USD
CY2017	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-2634000	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-22381000	USD
CY2018	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	176508000	USD
CY2017	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	288960000	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-71276000	USD
CY2017Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	807170000	USD
CY2016Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	518210000	USD
CY2015Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	589486000	USD
CY2018Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	983678000	USD
CY2017Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	807170000	USD
CY2016Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	518210000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	2450000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	81000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	0	USD
CY2018Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	2531000	USD
CY2016Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	3773000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	348000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	1671000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	2450000	USD
CY2015Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5199000	USD
CY2016	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	785000	USD
CY2016	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	2211000	USD
CY2016Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	3773000	USD

Files In Submission

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$UNTC
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2018 Q1 Form 10-K Financial Statement

#000079894919000007 Filed on February 26, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UNTC Unit Corp Stock $untc

2018 Q1 Form 10-K Financial Statement

#000079894919000007 Filed on February 26, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UNTC
Unit Corp Stock $untc