$WTI
W&T OFFSHORE INC Stock $wti

$wti Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000143774921005032 Filed on March 04, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue	$94.75M	$151.9M	$132.2M
YoY Change	-37.62%	5.91%	-13.84%
Cost Of Revenue	$43.30M	$53.30M	$47.20M
YoY Change	-18.76%	22.81%	26.2%
Gross Profit	$51.40M	$98.60M	$85.00M
YoY Change	-47.87%	-1.4%	-26.72%
Gross Profit Margin	54.25%	64.91%	64.29%
Selling, General & Admin	$13.00M	$25.30M	$16.60M
YoY Change	-48.62%	15.0%	-25.23%
% of Gross Profit	25.29%	25.66%	19.53%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$26.60M	$37.80M	$38.84M
YoY Change	-29.63%	7.69%	4.98%
% of Gross Profit	51.75%	38.34%	45.7%
Operating Expenses	$39.60M	$63.00M	$55.50M
YoY Change	-37.14%	10.53%	-6.25%
Operating Profit	$349.0K	$16.85M	$35.40M
YoY Change	-97.93%	-83.59%	-38.06%
Interest Expense	-$26.90M	-$35.30M	$14.45M
YoY Change	-23.8%	-176.41%	34.66%
% of Operating Profit	-7707.74%	-209.53%	40.81%
Other Income/Expense, Net	-$800.0K	$1.200M	-$555.0K
YoY Change	-166.67%	-57.14%	2983.33%
Pretax Income	-$15.80M	$1.400M	$20.40M
YoY Change	-1228.57%	-98.99%	-56.04%
Income Tax	-$6.900M	-$8.200M	-$55.50M
% Of Pretax Income		-585.71%	-272.07%
Net Earnings	-$8.947M	$9.559M	$75.90M
YoY Change	-193.6%	-93.12%	64.07%
Net Earnings / Revenue	-9.44%	6.29%	57.4%
Basic Earnings Per Share
Diluted Earnings Per Share	-$62.81K	$68.18K	$539.8K
COMMON SHARES
Basic Shares Outstanding	141.8M	140.7M	140.7M
Diluted Shares Outstanding

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$43.70M	$32.40M	$41.70M
YoY Change	34.88%	-2.7%	-87.7%
Cash & Equivalents	$43.73M	$32.43M	$41.74M
Short-Term Investments
Other Short-Term Assets	$59.00K	$886.0K	$2.780M
YoY Change	-93.34%	12.72%	115.67%
Inventory
Prepaid Expenses
Receivables	$38.83M	$57.37M	$51.63M
Other Receivables	$0.00	$1.800M	$36.90M
Total Short-Term Assets	$107.2M	$141.8M	$201.0M
YoY Change	-24.36%	-37.34%	-58.98%
LONG-TERM ASSETS
Property, Plant & Equipment	$686.9M	$748.8M	$721.0M
YoY Change	-8.27%	45.28%	37.91%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.700M	$2.600M	$2.900M
YoY Change	3.85%
Other Assets	$22.47M	$33.45M	$32.86M
YoY Change	-32.82%	-63.46%	-52.38%
Total Long-Term Assets	$833.4M	$862.0M	$826.1M
YoY Change	-3.32%	38.43%	34.9%
TOTAL ASSETS
Total Short-Term Assets	$107.2M	$141.8M	$201.0M
Total Long-Term Assets	$833.4M	$862.0M	$826.1M
Total Assets	$940.6M	$1.004B	$1.027B
YoY Change	-6.29%	18.24%	-6.83%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$41.30M	$102.3M	$105.9M
YoY Change	-59.64%	24.71%	10.91%
Accrued Expenses	$29.88M	$30.90M	$37.25M
YoY Change	-3.29%	4.34%	53.94%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$115.0M	$190.0M	$228.3M
YoY Change	-39.46%	1.97%	-48.9%
LONG-TERM LIABILITIES
Long-Term Debt	$625.3M	$719.5M	$718.9M
YoY Change	-13.1%	13.57%	-5.29%
Other Long-Term Liabilities	$32.94M	$9.988M	$16.27M
YoY Change	229.78%	-85.46%	-95.43%
Total Long-Term Liabilities	$658.2M	$729.5M	$735.2M
YoY Change	-9.77%	3.89%	-34.08%
TOTAL LIABILITIES
Total Short-Term Liabilities	$115.0M	$190.0M	$228.3M
Total Long-Term Liabilities	$658.2M	$729.5M	$735.2M
Total Liabilities	$773.2M	$919.5M	$963.5M
YoY Change	-15.91%	3.48%	-38.32%
SHAREHOLDERS EQUITY
Retained Earnings	-$734.5M	-$772.2M	-$781.8M
YoY Change	-4.89%	-8.75%
Common Stock	$550.3M	$547.1M	$548.1M
YoY Change	0.6%	0.25%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$24.17M	$24.17M	$24.17M
YoY Change	0.0%	0.0%
Treasury Stock Shares	$2.869M	$2.869M	$2.869M
Shareholders Equity	-$208.3M	-$249.4M	-$257.8M
YoY Change
Total Liabilities & Shareholders Equity	$940.6M	$1.004B	$1.027B
YoY Change	-6.29%	18.24%	-6.82%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	-$8.947M	$9.559M	$75.90M
YoY Change	-193.6%	-93.12%	64.07%
Depreciation, Depletion And Amortization	$26.60M	$37.80M	$38.84M
YoY Change	-29.63%	7.69%	4.98%
Cash From Operating Activities	-$6.200M	$45.60M	$80.30M
YoY Change	-113.6%	69.52%	-55.31%
INVESTING ACTIVITIES
Capital Expenditures	$20.60M	-$52.60M	-$188.1M
YoY Change	-139.16%	11.68%	-10000.0%
Acquisitions
YoY Change
Other Investing Activities	-$26.50M	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Cash From Investing Activities	-$5.900M	-$52.60M	-$188.1M
YoY Change	-88.78%	154.11%	-685.98%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-700.0K	-2.400M	83.90M
YoY Change	-70.83%	-99.23%	-4295.0%
NET CHANGE
Cash From Operating Activities	-6.200M	45.60M	80.30M
Cash From Investing Activities	-5.900M	-52.60M	-188.1M
Cash From Financing Activities	-700.0K	-2.400M	83.90M
Net Change In Cash	-12.80M	-9.400M	-23.90M
YoY Change	36.17%	-96.93%	-111.39%
FREE CASH FLOW
Cash From Operating Activities	-$6.200M	$45.60M	$80.30M
Capital Expenditures	$20.60M	-$52.60M	-$188.1M
Free Cash Flow	-$26.80M	$98.20M	$268.4M
YoY Change	-127.29%	32.7%	50.96%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001288403
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CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2869000
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2869000
CY2020	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2019	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2018	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
CY2020	wti	Proved Undeveloped Reserves Classification Period To Be Drilled ProvedUndevelopedReservesClassificationPeriodToBeDrilled	P5Y
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0.0	USD
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CY2020	us-gaap	Net Income Loss NetIncomeLoss	37790000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-208286000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	37790000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	74086000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	248827000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	120284000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	148498000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	149854000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6834000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5514000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	2850000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	3959000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	3690000	USD
CY2018	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	53798000	USD
CY2020	wti	Proceeds From Payments For Derivative Instrument Operating Activities ProceedsFromPaymentsForDerivativeInstrumentOperatingActivities	45196000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-0	USD
CY2019	wti	Proceeds From Payments For Derivative Instrument Operating Activities ProceedsFromPaymentsForDerivativeInstrumentOperatingActivities	13941000	USD
CY2018	wti	Proceeds From Payments For Derivative Instrument Operating Activities ProceedsFromPaymentsForDerivativeInstrumentOperatingActivities	-28164000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	47469000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	47109000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	11028000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	2014000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	52214000	USD
CY2019	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	89000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-30287000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-64102000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	500000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-18537000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9563000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2361000	USD
CY2020	wti	Increase Decrease In Joint Interest Receivables IncreaseDecreaseInJointInterestReceivables	-8561000	USD
CY2019	wti	Increase Decrease In Joint Interest Receivables IncreaseDecreaseInJointInterestReceivables	4766000	USD
CY2018	wti	Increase Decrease In Joint Interest Receivables IncreaseDecreaseInJointInterestReceivables	-5120000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-9563000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9346000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3383000	USD
CY2020	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	3339000	USD
CY2019	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	11443000	USD
CY2018	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	28617000	USD
CY2020	wti	Increase Decrease In Cash Advances From Joint Venture Partners IncreaseDecreaseInCashAdvancesFromJointVenturePartners	2028000	USD
CY2019	wti	Increase Decrease In Cash Advances From Joint Venture Partners IncreaseDecreaseInCashAdvancesFromJointVenturePartners	-15347000	USD
CY2018	wti	Increase Decrease In Cash Advances From Joint Venture Partners IncreaseDecreaseInCashAdvancesFromJointVenturePartners	16629000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-41354000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-11036000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	40081000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	108509000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	232227000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	321763000	USD
CY2020	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	17632000	USD
CY2019	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	137816000	USD
CY2018	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	90741000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	26535000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-12110000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15450000	USD
CY2020	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	2919000	USD
CY2019	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	188019000	USD
CY2018	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	16782000	USD
CY2020	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	0	USD
CY2019	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	0	USD
CY2018	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	56588000	USD
CY2020	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	530000	USD
CY2018	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	-0	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47616000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-313814000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-66385000	USD
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	25000000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	150000000	USD
CY2018	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	61000000	USD
CY2020	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	50000000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	66000000	USD
CY2018	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	40000000	USD
CY2020	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	23930000	USD
CY2019	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	-0	USD
CY2018	wti	Extinguishment Of Debt Principal ExtinguishmentOfDebtPrincipal	903194000	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	-0	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	625000000	USD
CY2018	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	-0	USD
CY2019	wti	Extinguishment Of Debt Principal ExtinguishmentOfDebtPrincipal	-0	USD
CY2020	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2020	wti	Extinguishment Of Debt Principal ExtinguishmentOfDebtPrincipal	-0	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	80727000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	-0	USD
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	21850000	USD
CY2020	wti	Payments Of Debt Interest Financing Activities PaymentsOfDebtInterestFinancingActivities	-0	USD
CY2019	wti	Payments Of Debt Interest Financing Activities PaymentsOfDebtInterestFinancingActivities	-0	USD
CY2018	wti	Payments Of Debt Interest Financing Activities PaymentsOfDebtInterestFinancingActivities	6623000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	-0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	939000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	17457000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-670000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2334000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3622000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-49600000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-321143000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	11293000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-860000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-65765000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	32433000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	33293000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	99058000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	43726000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	32433000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	33293000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:9.35pt;margin-right:0pt;margin-top:0pt;text-align:left;"><b><i>Use of Estimates </i></b></p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">The preparation of financial statements in conformity with 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, the reported amounts of revenues and expenses during the reporting periods and the reported amounts of proved oil and natural gas reserves. Actual results could differ from those estimates.</p>
CY2020Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	3500000	USD
CY2019Q4	us-gaap	Gas Imbalance Asset Liability GasImbalanceAssetLiability	3600000	USD
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:9.35pt;margin-right:0pt;margin-top:0pt;text-align:left;"><b><i>Concentration of Credit Risk </i></b></p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">Our customers are primarily large integrated oil and natural gas companies and large commodity trading companies. The majority of our production is sold utilizing month-to-month contracts that are based on bid prices. We attempt to minimize our credit risk exposure to purchasers of our oil and natural gas, joint interest owners, derivative counterparties and other <em style="font: inherit;">third</em>-party entities through formal credit policies, monitoring procedures, and letters of credit or guarantees when considered necessary.</p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">The following table identifies customers from whom we derived <em style="font: inherit;">10%</em> or more of our receipts from sales of crude oil, NGLs and natural gas:</p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="margin-right: 10%; margin-left: 10%; width: 80%; font-size: 10pt; font-family: "Times New Roman", Times, serif; text-indent: 0px;"><tbody><tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td colspan="10" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><em style="font: inherit;"><em style="font: inherit;"><em style="font: inherit;">Year Ended December 31,</em></em></em></b></p> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px;"> </td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><em style="font: inherit;">2020</em></b></p> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><em style="font: inherit;">2019</em></b></p> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><em style="font: inherit;">2018</em></b></p> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px;"> </td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 43%;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><b>Customer</b></p> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"><b> </b></td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"><b> </b></td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"><b> </b></td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">BP Products North America</p> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">39</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">40</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">20</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt">Mercuria Energy America Inc.</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt">10</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt">%</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt"><em style="font: inherit;"></em></td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt"><em style="font: inherit;"></em></td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Shell Trading (US) Co./ Shell Energy N.A.</p> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><em style="font: inherit;"></em></td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">11</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">30</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td></tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Vitol Inc.</p> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><em style="font: inherit;"></em></td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">12</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">14</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">%</td></tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: "Times New Roman", Times, serif; font-size: 10pt">Williams Field Services</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt">13</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt">%</td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt"><em style="font: inherit;"></em></td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td><td style="width: 16%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt"><em style="font: inherit;"></em></td><td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt"> </td></tr> </tbody></table> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"> </p> <table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;"><tbody><tr style="vertical-align: top;"><td style="width: 36pt;"> </td><td style="width: 18pt;"> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;">**</p> </td><td> <p style="margin: 0pt; text-align: left; font-family: "Times New Roman", Times, serif; font-size: 10pt;">Less than <em style="font: inherit;">10%</em></p> </td></tr> </tbody></table> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">We believe that the loss of any of the customers above would <em style="font: inherit;">not</em> result in a material adverse effect on our ability to market future oil and natural gas production as replacement customers could be obtained in a relatively short period of time on terms, conditions and pricing substantially similar to those currently existing.</p>
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9114000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	417000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	206000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1233000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	1192000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	-0	USD
CY2019Q4	wti	Unamortized Bond Insurance Premiums UnamortizedBondInsurancePremiums	4357000	USD
CY2020Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	4473000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9898000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9692000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	655000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9123000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9898000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9692000	USD
CY2020Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	2752000	USD
CY2019Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	7266000	USD
CY2020Q4	wti	Unamortized Bond Insurance Premiums UnamortizedBondInsurancePremiums	4717000	USD
CY2019Q4	us-gaap	Prepaid Royalties PrepaidRoyalties	7980000	USD
CY2020Q4	us-gaap	Supplies Supplies	1429000	USD
CY2019Q4	us-gaap	Supplies Supplies	10202000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	461000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	886000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	13832000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	30691000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.46
CY2020Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	8567509000	USD
CY2019Q4	us-gaap	Oil And Gas Property Full Cost Method Gross OilAndGasPropertyFullCostMethodGross	8532196000	USD
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	20847000	USD
CY2019Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	20317000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8588356000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8552513000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7901478000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7803715000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	686878000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	748798000	USD
CY2020	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:9.35pt;margin-right:0pt;margin-top:0pt;text-align:left;"><b><i>Derivative Financial Instruments </i></b></p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">We have exposure related to commodity prices and have used various derivative instruments to manage our exposure to commodity price risk from sales of oil and natural gas. We do <em style="font: inherit;">not</em> enter into derivative instruments for speculative trading purposes. We entered into commodity derivatives contracts during <em style="font: inherit;">2020,</em> <em style="font: inherit;">2019</em> and <em style="font: inherit;">2018,</em> and as of <em style="font: inherit;"> December 31, 2020</em>, we had open commodity derivative instruments. When we have outstanding borrowings on our revolving bank credit facility, we <em style="font: inherit;"> may </em>use various derivative financial instruments to manage our exposure to interest rate risk from floating interest rates. During <em style="font: inherit;">2020,</em> <em style="font: inherit;">2019</em> and <em style="font: inherit;">2018,</em> we did <span style="-sec-ix-hidden:c70040194"><span style="-sec-ix-hidden:c70040234"><span style="-sec-ix-hidden:c70040235">not</span></span></span> enter into any derivative instruments related to interest rates.</p> <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:18pt;">Derivative instruments are recorded on the balance sheet as an asset or a liability at fair value. We have elected <em style="font: inherit;">not</em> to designate our derivatives instruments as hedging instruments, therefore, all changes in fair value are recognized in earnings. These derivative instruments <em style="font: inherit;"> may </em>or <em style="font: inherit;"> may </em><em style="font: inherit;">not</em> have qualified for hedge accounting treatment. </p>
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	11509000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7936000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	2094000	USD
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	3798000	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	2699000	USD
CY2019Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	2590000	USD
CY2020Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	2762000	USD
CY2019Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	2653000	USD
CY2020Q4	wti	Unamortized Brokerage Fee UnamortizedBrokerageFee	626000	USD
CY2019Q4	wti	Unamortized Brokerage Fee UnamortizedBrokerageFee	3423000	USD
CY2020Q4	wti	Proportional Consolidation Adjustment In Other Asset ProportionalConsolidationAdjustmentInOtherAsset	1782000	USD
CY2019Q4	wti	Proportional Consolidation Adjustment In Other Asset ProportionalConsolidationAdjustmentInOtherAsset	5308000	USD
CY2020Q4	wti	Appeal Bond Deposit Assets Noncurrent AppealBondDepositAssetsNoncurrent	0	USD
CY2019Q4	wti	Appeal Bond Deposit Assets Noncurrent AppealBondDepositAssetsNoncurrent	6925000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	998000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	814000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	22470000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	33447000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	29880000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	30896000	USD
CY2020Q2	wti	Proceeds From Paycheck Protection Program Under Cares Act ProceedsFromPaycheckProtectionProgramUnderCaresAct	8400000	USD
CY2020	wti	Increase Decrease Operating Lease Expense IncreaseDecreaseOperatingLeaseExpense	-2300000	USD
CY2020	wti	Increase Decrease General And Administrative Expense IncreaseDecreaseGeneralAndAdministrativeExpense	4200000	USD
CY2020	wti	Increase Decrease Interest Expense Net IncreaseDecreaseInterestExpenseNet	1900000	USD
CY2020Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.04
CY2020Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.09
CY2020Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.06
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	32938000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	9988000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	625286000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	719533000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	355594000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	310137000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	3339000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	11443000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	22521000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	19460000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	4860000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	29887000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	13068000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	116080000	USD
CY2020	us-gaap	Lease Cost LeaseCost	4693000	USD
CY2019	us-gaap	Lease Cost LeaseCost	25054000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	7553000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	392704000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	355594000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	17188000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	21991000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	375516000	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	333603000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	3060000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	2902000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1633000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	22152000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.102	pure
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.104	pure
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	1825000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	1827000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5142000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6373000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	394000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1134000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-28041000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1625000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2023000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1512000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	17461000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	24149000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	12395000	USD
CY2020	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	23808000	USD
CY2019	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-59887000	USD
CY2018	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	53798000	USD
CY2020	wti	Proceeds From Payments For Derivative Instrument Operating Activities ProceedsFromPaymentsForDerivativeInstrumentOperatingActivities	45196000	USD
CY2019	wti	Proceeds From Payments For Derivative Instrument Operating Activities ProceedsFromPaymentsForDerivativeInstrumentOperatingActivities	13941000	USD
CY2018	wti	Proceeds From Payments For Derivative Instrument Operating Activities ProceedsFromPaymentsForDerivativeInstrumentOperatingActivities	-28164000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	134701000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	132221000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	151894000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-30976000	USD
CY2019	wti	Incentive Compensation Total IncentiveCompensationTotal	14793000	USD
CY2018	wti	Incentive Compensation Total IncentiveCompensationTotal	16722000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3959000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3690000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3540000	USD
CY2020	wti	Incentive Compensation Total IncentiveCompensationTotal	8827000	USD
CY2020	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1	pure
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.06	pure
CY2020	us-gaap	Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage	0.20	pure
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2300000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2000000.0	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2000000.0	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	55241000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	72517000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	37379000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	35399000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	971000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	457000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	16847000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-47761000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	36389000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	75899000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	9559000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.34
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.25
CY2019Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.53
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.07
CY2020Q1	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	61900000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-15400000	USD
CY2020Q3	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-11200000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	75000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-175000	USD
CY2020Q4	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-11500000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	560000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	52366000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	1373000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	134000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-11092000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	35000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-30287000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-64102000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	500000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-30153000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-75194000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	535000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1604000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-233000	USD
CY2020	wti	Effective Income Tax Rate Reconciliation Uncertain Tax Position Amount EffectiveIncomeTaxRateReconciliationUncertainTaxPositionAmount	0	USD
CY2019	wti	Effective Income Tax Rate Reconciliation Uncertain Tax Position Amount EffectiveIncomeTaxRateReconciliationUncertainTaxPositionAmount	-11523000	USD
CY2018	wti	Effective Income Tax Rate Reconciliation Uncertain Tax Position Amount EffectiveIncomeTaxRateReconciliationUncertainTaxPositionAmount	0	USD
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CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
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CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	158000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	470000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	645000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-30153000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-75194000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	535000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
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CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	48193000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	38646000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	47307000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	15265000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	8136000	USD
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CY2020Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	16304000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	48458000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	54436000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4843000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	6584000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	142396000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	63916000	USD
CY2019Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1900000	USD
CY2019	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	51800000	USD
CY2019	wti	Interest Income Related To Income Tax Refunds InterestIncomeRelatedToIncomeTaxRefunds	4500000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8700000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-21100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	74086000	USD
CY2020Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	75341000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-32100000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-63300000	USD
CY2020	wti	Income Tax Benefit Cares Act IncomeTaxBenefitCaresAct	32100000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	22400000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	9482000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	0	USD
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CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	37790000	USD
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CY2020	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	437000	USD
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CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	72715000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	239100000	USD
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CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6900000	USD
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CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-5904000	USD
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CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	200000	USD
CY2018	wti	Expense Relating To Surety Bonds Paid ExpenseRelatingToSuretyBondsPaid	5900000	USD
CY2018	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	19877000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11700000	USD
CY2020	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	0	USD
CY2020	wti	Expense Relating To Surety Bonds Paid ExpenseRelatingToSuretyBondsPaid	5400000	USD
CY2019	wti	Expense Relating To Surety Bonds Paid ExpenseRelatingToSuretyBondsPaid	4700000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-55500000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	159000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	51000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	138000	USD
CY2020	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	2007000	USD
CY2019	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	51833000	USD
CY2018	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	11126000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Share Based Liabilities Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid	0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Share Based Liabilities Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid	0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Share Based Liabilities Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid	1130000	USD
CY2020	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	603000	USD
CY2019	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	7720000	USD
CY2018	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	2385000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3035000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	29662000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	18575000	USD
CY2020	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	17928000	USD
CY2019	us-gaap	Asset Retirement Obligation Period Increase Decrease AssetRetirementObligationPeriodIncreaseDecrease	37440000	USD
CY2010Q4	wti	Additional Royalty Due To Disallowed Deductions AdditionalRoyaltyDueToDisallowedDeductions	4700000	USD
CY2017Q3	wti	Bonds Posted To Appeal Ibla Decision BondsPostedToAppealIBLADecision	7200000	USD
CY2017Q3	wti	Collateral For Bonds Posted Related To Appeal With Ibla CollateralForBondsPostedRelatedToAppealWithIBLA	6900000	USD
CY2020Q1	wti	Collateral For Bonds Posted Related To Appeal With Ibla CollateralForBondsPostedRelatedToAppealWithIBLA	6900000	USD
CY2020Q4	wti	Collateral For Bonds Posted Related To Appeal With Ibla CollateralForBondsPostedRelatedToAppealWithIBLA	8200000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8200000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	124128000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	94748000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	71811000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-8947000	USD
CY2018Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	7665100000	USD
CY2020Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	676600000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	47500000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6500000	USD
CY2019Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	738900000	USD
CY2018	wti	Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions	20300000	USD
CY2018Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	504800000	USD
CY2020	wti	Seismic Costs SeismicCosts	300000	USD
CY2019	wti	Seismic Costs SeismicCosts	7800000	USD
CY2018	wti	Seismic Costs SeismicCosts	1500000	USD
CY2020	wti	Geological And Geophysical Costs GeologicalAndGeophysicalCosts	4500000	USD
CY2019	wti	Geological And Geophysical Costs GeologicalAndGeophysicalCosts	5700000	USD
CY2018	wti	Geological And Geophysical Costs GeologicalAndGeophysicalCosts	5400000	USD
CY2019	wti	Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions	37500000	USD
CY2019Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	7793300000	USD
CY2020Q4	us-gaap	Capitalized Costs Mineral Interests In Proved Properties CapitalizedCostsMineralInterestsInProvedProperties	8567500000	USD
CY2019Q4	us-gaap	Capitalized Costs Mineral Interests In Proved Properties CapitalizedCostsMineralInterestsInProvedProperties	8532200000	USD
CY2018Q4	us-gaap	Capitalized Costs Mineral Interests In Proved Properties CapitalizedCostsMineralInterestsInProvedProperties	8169900000	USD
CY2020Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	7890900000	USD
CY2020	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	8100000	USD
CY2019	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	223800000	USD
CY2018	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	24100000	USD
CY2020	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	7400000	USD
CY2019	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	30600000	USD
CY2018	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	49900000	USD
CY2020	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	23600000	USD
CY2019	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	114500000	USD
CY2018	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	56200000	USD
CY2020	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	39100000	USD
CY2019	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	368900000	USD
CY2018	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	130200000	USD
CY2020	wti	Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions	15200000	USD
CY2020	wti	Depreciation Depletion Amortization And Accretion Per Boe DepreciationDepletionAmortizationAndAccretionPerBoe	7.82	USD
CY2019	wti	Depreciation Depletion Amortization And Accretion Per Boe DepreciationDepletionAmortizationAndAccretionPerBoe	10.01	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	42200000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	300600000	USD
CY2018Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	553200000	USD
CY2020	wti	Percentage Of Proved Undeveloped Reserves Expected To Be Developed PercentageOfProvedUndevelopedReservesExpectedToBeDeveloped	0.19	pure
CY2020Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	493700000	USD
CY2020Q4	wti	Proved Undeveloped Reserve Net Energy Converted Outside Of Five Years ProvedUndevelopedReserveNetEnergyConvertedOutsideOfFiveYears	2.3
CY2018	wti	Depreciation Depletion Amortization And Accretion Per Boe DepreciationDepletionAmortizationAndAccretionPerBoe	11.24	USD
CY2020Q4	wti	Percentage Of Nonoperated Proved Developed Nonproducing Reserves PercentageOfNonoperatedProvedDevelopedNonproducingReserves	0.221	pure
CY2019Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	986900000	USD
CY2018Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1067000000.0	USD
CY2019Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	986900000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	794700000	USD
CY2018Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	628300000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	60500000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	170500000	USD
CY2018Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	293900000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	535900000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1287500000	USD
CY2018Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1620200000	USD
CY2020	wti	Present Value Discounted Percentage PresentValueDiscountedPercentage	0.10	pure
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	2561200000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	4153800000	USD
CY2018Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	3500900000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	1257400000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	1901100000	USD
CY2018Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	958500000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	707400000	USD
CY2018Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1067000000.0	USD
CY2017Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	740600000	USD
CY2020	srt	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	168600000	USD
CY2019	srt	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	315800000	USD
CY2018	srt	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	398100000	USD
CY2020	srt	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-503700000	USD
CY2019	srt	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-376400000	USD
CY2018	srt	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	571500000	USD
CY2020	srt	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	2800000	USD
CY2019	srt	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	27000000.0	USD
CY2018	srt	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	53600000	USD
CY2020	srt	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-15900000	USD
CY2019	srt	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-6000000.0	USD
CY2020	srt	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	1400000	USD
CY2018	srt	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-114700000	USD
CY2019	srt	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	19300000	USD
CY2018	srt	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	48400000	USD
CY2020	srt	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-65200000	USD
CY2019	srt	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	116400000	USD
CY2018	srt	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	307600000	USD
CY2020	srt	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	111800000	USD
CY2019	srt	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	107400000	USD
CY2018	srt	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	50500000	USD
CY2020	srt	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	87700000	USD
CY2019	srt	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	62900000	USD
CY2018	srt	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-133400000	USD
CY2020	srt	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	44600000	USD
CY2019	srt	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	298300000	USD
CY2018	srt	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	27800000	USD
CY2020	srt	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	-0	USD
CY2019	srt	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	-0	USD
CY2018	srt	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	54100000	USD
CY2020	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	11900000	USD
CY2019	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-13200000	USD
CY2018	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-32700000	USD
CY2020	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-493200000	USD
CY2019	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-80100000	USD
CY2018	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	326400000	USD
CY2020Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	493700000	USD
CY2019Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	986900000	USD
CY2018Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1067000000.0	USD

Files In Submission

Name	View Source	Status
0001437749-21-005032-index-headers.html	Edgar Link	pending
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0001437749-21-005032.txt	Edgar Link	pending
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wti20201231_10k_htm.xml	Edgar Link	completed

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$WTI
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2020 Q4 Form 10-K Financial Statement

#000143774921005032 Filed on March 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WTI W&T OFFSHORE INC Stock $wti

2020 Q4 Form 10-K Financial Statement

#000143774921005032 Filed on March 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WTI
W&T OFFSHORE INC Stock $wti