$CHRD
Chord Energy Corp Stock $chrd

$chrd Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000148615922000014 Filed on February 25, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$1.580B	$1.580B	$107.0M
YoY Change	1376.66%	45.84%	-77.89%
Cost Of Revenue	$660.8M	$660.8M	$88.90M
YoY Change	643.29%	49.82%	-50.06%
Gross Profit	$919.1M	$919.1M	$169.2M
YoY Change	443.23%	43.11%	-44.69%
Gross Profit Margin	58.18%	58.18%	158.14%
Selling, General & Admin	$203.3M	$203.3M	$63.10M
YoY Change	222.19%	-20.13%	8.79%
% of Gross Profit	22.12%	22.12%	37.29%
Research & Development	$2.760M	$2.760M	-$300.0K
YoY Change	-1020.0%	0.44%	-106.98%
% of Gross Profit	0.3%	0.3%	-0.18%
Depreciation & Amortization	$45.72M	$158.3M	$16.09M
YoY Change	184.1%	-48.47%	-92.31%
% of Gross Profit	4.97%	17.22%	9.51%
Operating Expenses	$332.5M	$332.5M	$97.20M
YoY Change	242.08%	-41.1%	-64.19%
Operating Profit	$586.6M	$809.4M	$16.48M
YoY Change	3459.5%	940.66%	-31.23%
Interest Expense	-$620.4M	$30.81M	$2.020M
YoY Change	-30815.2%	-186.29%	-101.74%
% of Operating Profit	-105.76%	3.81%	12.26%
Other Income/Expense, Net	-$1.010M	-$621.5M	-$87.04M
YoY Change	-98.84%	-61936.52%	28912.0%
Pretax Income	$188.0M	$188.0M	-$70.56M
YoY Change	-366.44%	-104.66%	-19.82%
Income Tax	-$973.0K	-$973.0K	-$3.447M
% Of Pretax Income	-0.52%	-0.52%
Net Earnings	$319.6M	$319.6M	-$49.91M
YoY Change	-740.33%	-108.66%	-34.68%
Net Earnings / Revenue	20.23%	20.23%	-46.65%
Basic Earnings Per Share		$16.15	-$2.50
Diluted Earnings Per Share	$15.48M	$15.48	-$2.50
COMMON SHARES
Basic Shares Outstanding	19.75M shares	19.79M shares	19.99M shares
Diluted Shares Outstanding		20.65M shares	19.99M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$172.1M	$172.1M	$15.90M
YoY Change	982.48%	985.48%	-20.5%
Cash & Equivalents	$172.1M	$172.1M	$10.71M
Short-Term Investments
Other Short-Term Assets	$1.836M	$1.037B	$104.0K
YoY Change	1665.38%	6681.99%	-69.94%
Inventory	$28.96M	$28.96M	$21.62M
Prepaid Expenses	$6.016M		$3.760M
Receivables	$377.2M	$377.2M	$234.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.615B	$1.615B	$339.1M
YoY Change	376.41%	494.75%	-22.47%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.320B	$1.337B	$847.8M
YoY Change	55.74%	-23.07%	-87.85%
Goodwill			$70.53M
YoY Change
Intangibles			$43.67M
YoY Change
Long-Term Investments	$0.00
YoY Change
Other Assets	$12.76M	$74.01M	$18.75M
YoY Change	-31.98%	111.87%	-36.29%
Total Long-Term Assets	$1.411B	$1.411B	$1.899B
YoY Change	-25.68%	-25.22%	-73.11%
TOTAL ASSETS
Total Short-Term Assets	$1.615B	$1.615B	$339.1M
Total Long-Term Assets	$1.411B	$1.411B	$1.899B
Total Assets	$3.027B	$3.027B	$2.238B
YoY Change	35.25%	40.19%	-70.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.136M	$2.136M	$21.52M
YoY Change	-90.07%	-34.11%	19.89%
Accrued Expenses	$150.7M	$160.7M	$108.1M
YoY Change	39.33%	23.75%	-61.53%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$1.008M	$0.00
YoY Change		-38.01%
Total Short-Term Liabilities	$1.225B	$1.225B	$305.6M
YoY Change	300.93%	259.05%	-49.31%
LONG-TERM LIABILITIES
Long-Term Debt	$392.5M	$392.7M	$340.0M
YoY Change	15.45%	-44.84%	-87.46%
Other Long-Term Liabilities	$7.876M	$187.3M	$3.504M
YoY Change	124.77%	103.2%	-41.78%
Total Long-Term Liabilities	$400.4M	$580.0M	$343.5M
YoY Change	16.56%	-27.87%	-87.36%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.225B	$1.225B	$305.6M
Total Long-Term Liabilities	$400.4M	$580.0M	$343.5M
Total Liabilities	$1.805B	$1.994B	$1.180B
YoY Change	53.04%	60.4%	-67.79%
SHAREHOLDERS EQUITY
Retained Earnings	$269.7M		$0.00
YoY Change			-100.0%
Common Stock	$863.2M		$965.9M
YoY Change	-10.63%		-69.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$100.0M		$0.00
YoY Change			-100.0%
Treasury Stock Shares	871.0K shares		0.000 shares
Shareholders Equity	$1.033B	$1.033B	$965.6M
YoY Change
Total Liabilities & Shareholders Equity	$3.027B	$3.027B	$2.238B
YoY Change	35.25%	40.19%	-70.16%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$319.6M	$319.6M	-$49.91M
YoY Change	-740.33%	-108.66%	-34.68%
Depreciation, Depletion And Amortization	$45.72M	$158.3M	$16.09M
YoY Change	184.1%	-48.47%	-92.31%
Cash From Operating Activities	$269.4M	$914.1M	$95.26M
YoY Change	182.81%	206.56%	-62.35%
INVESTING ACTIVITIES
Capital Expenditures	-$659.7M	-$802.9M	$50.00M
YoY Change	-1419.43%	134.9%	-70.17%
Acquisitions		$590.1M	$0.00
YoY Change
Other Investing Activities	-$172.0M	-$117.9M	$0.00
YoY Change		-149.2%	-100.0%
Cash From Investing Activities	-$831.7M	-$920.8M	-$9.881M
YoY Change	8317.55%	800.21%	-93.75%
FINANCING ACTIVITIES
Cash Dividend Paid		$111.9M	$0.00
YoY Change
Common Stock Issuance & Retirement, Net		$86.47M	$0.00
YoY Change		-3237.41%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-111.5M	$161.2M	-$85.70M
YoY Change	30.08%	-182.37%	-9.31%
NET CHANGE
Cash From Operating Activities	269.4M	$914.1M	$95.26M
Cash From Investing Activities	-831.7M	-$920.8M	-$9.881M
Cash From Financing Activities	-111.5M	$161.2M	-$85.70M
Net Change In Cash	-673.8M	$154.6M	-$328.0K
YoY Change	205334.45%	74565.22%	-165.6%
FREE CASH FLOW
Cash From Operating Activities	$269.4M	$914.1M	$95.26M
Capital Expenditures	-$659.7M	-$802.9M	$50.00M
Free Cash Flow	$929.1M	$1.717B	$45.26M
YoY Change	1953.05%	168.29%	-47.01%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001486159
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CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssetsNoncurrent
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CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-34776
CY2021	dei	Entity Registrant Name EntityRegistrantName	Oasis Petroleum Inc.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	80-0554627
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1001 Fannin Street
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 1500
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77002
CY2021	dei	City Area Code CityAreaCode	281
CY2021	dei	Local Phone Number LocalPhoneNumber	404-9500
CY2021	dei	Security12b Title Security12bTitle	Common Stock
CY2021	dei	Trading Symbol TradingSymbol	OAS
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021	dei	Entity Bankruptcy Proceedings Reporting Current EntityBankruptcyProceedingsReportingCurrent	true
CY2021Q2	dei	Entity Public Float EntityPublicFloat	1897801893	USD
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CY2021	dei	Auditor Firm AuditorFirmId	238
CY2021	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2021	dei	Auditor Location AuditorLocation	Houston, Texas
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	us-gaap	Asset Impairment Charges AssetImpairmentCharges	4825530000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	10257000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	80688000	USD
CY2020Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14803000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	144700000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	128595000	USD
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2020Q4	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-22750000	USD
CY2019	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-20000000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	993288000	USD
CY2020Q4	us-gaap	Costs And Expenses CostsAndExpenses	90523000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	5827452000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	2016517000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	222806000	USD
CY2020Q4	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	11000	USD
	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	10396000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	-4455000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	809444000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	16481000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-4971599000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-90175000	USD
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-589641000	USD
CY2020Q4	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-84615000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	233565000	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-106314000	USD
CY2021	us-gaap	Interest Expense InterestExpense	30806000	USD
CY2020Q4	us-gaap	Interest Expense InterestExpense	2020000	USD
	us-gaap	Interest Expense InterestExpense	141836000	USD
CY2019	us-gaap	Interest Expense InterestExpense	159287000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020Q4	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	83867000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	4312000	USD
CY2021	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2020Q4	us-gaap	Reorganization Items ReorganizationItems	0	USD
	us-gaap	Reorganization Items ReorganizationItems	-665916000	USD
CY2019	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1010000	USD
CY2020Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-401000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1271000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	569000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-621457000	USD
CY2020Q4	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-87036000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	842783000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-260720000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	187987000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-70555000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-4128816000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-350895000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-973000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3447000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-262962000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-32715000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	188960000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-67108000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-3865854000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	130642000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-318180000	USD
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	17196000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	225526000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	189937000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	319602000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-49912000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-3640328000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-128243000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	9.55
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-3.36
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-12.17
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-1.01
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	6.60
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.86
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.71
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.60
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	16.15
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.50
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-11.46
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.41
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	9.15
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-3.36
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-12.17
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-1.01
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	6.33
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.86
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.71
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.60
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	15.48
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.50
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-11.46
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.41
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19792000	shares
CY2020Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19991000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	317644000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	315002000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20648000	shares
CY2020Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19991000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	317644000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	315002000	shares
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3918880000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	35392000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	21270000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4856000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	418000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-90647000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3837081000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	31734000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	24080000	USD
	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	-337000	USD
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2756000	USD
	us-gaap	Profit Loss ProfitLoss	-3724611000	USD
	oas	Cancellation Of Predecessor Equity CancellationOfPredecessorEquity	23805000	USD
	oas	Issuance Of Successor Common Stock IssuanceOfSuccessorCommonStock	941810000	USD
	oas	Issuance Of Successor Warrants Net Of Offering Costs IssuanceOfSuccessorWarrantsNetOfOfferingCosts	23805000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1058431000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1058431000	USD
CY2020Q4	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	270000	USD
CY2020Q4	us-gaap	Profit Loss ProfitLoss	-45962000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1012739000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	15476000	USD
CY2021	us-gaap	Dividends Dividends	116852000	USD
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	28720000	USD
CY2021	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	86467000	USD
CY2021	oas	Equity Portion Attributable To Limited Partners Capital Account Transactions EquityPortionAttributableToLimitedPartnersCapitalAccountTransactions	0	USD
CY2021	oas	Common Control Transaction Costs CommonControlTransactionCosts	5675000	USD
CY2021	oas	Adjustments To Additional Paid In Capita Warrant Exercised AdjustmentsToAdditionalPaidInCapitaWarrantExercised	2840000	USD
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	100000000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	355298000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1221573000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	355298000	USD
CY2020Q4	us-gaap	Profit Loss ProfitLoss	-45962000	USD
	us-gaap	Profit Loss ProfitLoss	-3724611000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-90647000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	158304000	USD
CY2020Q4	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	16094000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	291115000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	787192000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020Q4	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	83867000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	4312000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	222806000	USD
CY2020Q4	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	11000	USD
	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	10396000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	-4455000	USD
CY2021	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	5000	USD
CY2020Q4	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	0	USD
	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	4937143000	USD
CY2019	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	10257000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-977000	USD
CY2020Q4	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3447000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-262926000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-32699000	USD
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-589641000	USD
CY2020Q4	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-84615000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	233565000	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-106314000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	15476000	USD
CY2020Q4	us-gaap	Share Based Compensation ShareBasedCompensation	270000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	31315000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	33607000	USD
CY2021	oas	Non Cash Reorganization Items Net NonCashReorganizationItemsNet	0	USD
CY2020Q4	oas	Non Cash Reorganization Items Net NonCashReorganizationItemsNet	0	USD
	oas	Non Cash Reorganization Items Net NonCashReorganizationItemsNet	-809036000	USD
CY2019	oas	Non Cash Reorganization Items Net NonCashReorganizationItemsNet	0	USD
CY2021	oas	Debt Discount Amortization And Other DebtDiscountAmortizationAndOther	12992000	USD
CY2020Q4	oas	Debt Discount Amortization And Other DebtDiscountAmortizationAndOther	6824000	USD
	oas	Debt Discount Amortization And Other DebtDiscountAmortizationAndOther	41811000	USD
CY2019	oas	Debt Discount Amortization And Other DebtDiscountAmortizationAndOther	27263000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	184605000	USD
CY2020Q4	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-68322000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-96436000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-13729000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2168000	USD
CY2020Q4	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1902000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4005000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5893000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-5605000	USD
CY2020Q4	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	2976000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-1674000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-325000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	184517000	USD
CY2020Q4	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-24573000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-62694000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	53051000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1482000	USD
CY2020Q4	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5803000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5458000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	9789000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	914136000	USD
CY2020Q4	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	95255000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	202936000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	892853000	USD
CY2021	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	212820000	USD
CY2020Q4	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	9805000	USD
	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	332007000	USD
CY2019	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	869221000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	590097000	USD
CY2020Q4	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	21009000	USD
CY2021	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	376081000	USD
CY2020Q4	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	0	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	15188000	USD
CY2019	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	42376000	USD
CY2021	oas	Paymentsfor Costs Relatedto Divestitureof Businesses PaymentsforCostsRelatedtoDivestitureofBusinesses	2926000	USD
CY2020Q4	oas	Paymentsfor Costs Relatedto Divestitureof Businesses PaymentsforCostsRelatedtoDivestitureofBusinesses	0	USD
	oas	Paymentsfor Costs Relatedto Divestitureof Businesses PaymentsforCostsRelatedtoDivestitureofBusinesses	0	USD
CY2019	oas	Paymentsfor Costs Relatedto Divestitureof Businesses PaymentsforCostsRelatedtoDivestitureofBusinesses	0	USD
CY2021	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	270118000	USD
CY2020Q4	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	76000	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-224416000	USD
CY2019	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-19098000	USD
CY2021	oas	Payments For Proceeds From Derivative Modification Investing Activities PaymentsForProceedsFromDerivativeModificationInvestingActivities	220889000	USD
CY2020Q4	oas	Payments For Proceeds From Derivative Modification Investing Activities PaymentsForProceedsFromDerivativeModificationInvestingActivities	0	USD
	oas	Reorganization Value Write Off Of Deferred Financing Costs ReorganizationValueWriteOffOfDeferredFinancingCosts	200000	USD
	oas	Payments For Proceeds From Derivative Modification Investing Activities PaymentsForProceedsFromDerivativeModificationInvestingActivities	0	USD
CY2019	oas	Payments For Proceeds From Derivative Modification Investing Activities PaymentsForProceedsFromDerivativeModificationInvestingActivities	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-920769000	USD
CY2020Q4	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-9881000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-92403000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-828756000	USD
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	399500000	USD
CY2020Q4	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	29000000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	686189000	USD
CY2019	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1982000000	USD
CY2021	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	906500000	USD
CY2020Q4	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	114500000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	686189000	USD
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1972500000	USD
CY2021	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
CY2020Q4	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	68060000	USD
CY2019	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	45790000	USD
CY2021	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	850000000	USD
CY2020Q4	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
	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
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	22251000	USD
CY2020Q4	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7260000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1052000	USD
CY2021	oas	Payments Of Debtor In Possession Credit Facility Fees PaymentsOfDebtorInPossessionCreditFacilityFees	0	USD
CY2020Q4	oas	Payments Of Debtor In Possession Credit Facility Fees PaymentsOfDebtorInPossessionCreditFacilityFees	0	USD
	oas	Payments Of Debtor In Possession Credit Facility Fees PaymentsOfDebtorInPossessionCreditFacilityFees	5853000	USD
CY2019	oas	Payments Of Debtor In Possession Credit Facility Fees PaymentsOfDebtorInPossessionCreditFacilityFees	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	86467000	USD
CY2020Q4	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2021	oas	Payments Of Common Control Transaction Costs PaymentsOfCommonControlTransactionCosts	5675000	USD
CY2020Q4	oas	Payments Of Common Control Transaction Costs PaymentsOfCommonControlTransactionCosts	0	USD
	oas	Payments Of Common Control Transaction Costs PaymentsOfCommonControlTransactionCosts	0	USD
CY2019	oas	Payments Of Common Control Transaction Costs PaymentsOfCommonControlTransactionCosts	0	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	100000000	USD
CY2020Q4	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2756000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4856000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	111905000	USD
CY2020Q4	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	28720000	USD
CY2020Q4	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	24080000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	21270000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1161000	USD
CY2020Q4	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	202000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1989000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2382000	USD
CY2021	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	1435000	USD
CY2020Q4	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
CY2019	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2020Q4	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-418000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	161190000	USD
CY2020Q4	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-85702000	USD
CY2020Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	1621622	shares
CY2020Q4	oas	Reorganization Value Percentage Of Voting Interest Received ReorganizationValuePercentageOfVotingInterestReceived	0.50
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-109998000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-66268000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	154557000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-328000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	535000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2171000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20226000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20554000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20019000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	22190000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	174783000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20226000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20554000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20019000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	41603000	USD
CY2020Q4	us-gaap	Interest Paid Net InterestPaidNet	2411000	USD
CY2020Q4	oas	Reorganization Value Related To Successor Assets ReorganizationValueRelatedToSuccessorAssets	2200000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	152416000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	155833000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	20000000	USD
CY2020Q4	us-gaap	Income Taxes Paid IncomeTaxesPaid	1000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	109000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	111000	USD
CY2021	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	USD
CY2020Q4	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	28000	USD
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	282000	USD
CY2019	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	146000	USD
CY2021	oas	Reorganization Items Paid ReorganizationItemsPaid	0	USD
CY2020Q4	oas	Reorganization Items Paid ReorganizationItemsPaid	0	USD
	oas	Reorganization Items Paid ReorganizationItemsPaid	22205000	USD
CY2019	oas	Reorganization Items Paid ReorganizationItemsPaid	0	USD
CY2021	oas	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	8304000	USD
CY2020Q4	oas	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	7938000	USD
	oas	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	-107725000	USD
CY2019	oas	Change In Capital Expenditures Incurred But Not Yet Paid ChangeInCapitalExpendituresIncurredButNotYetPaid	-82414000	USD
CY2021	oas	Increase Decrease In Non Cash Asset Retirement Obligations IncreaseDecreaseInNonCashAssetRetirementObligations	14724000	USD
CY2020Q4	oas	Increase Decrease In Non Cash Asset Retirement Obligations IncreaseDecreaseInNonCashAssetRetirementObligations	377000	USD
	oas	Increase Decrease In Non Cash Asset Retirement Obligations IncreaseDecreaseInNonCashAssetRetirementObligations	-10268000	USD
CY2019	oas	Increase Decrease In Non Cash Asset Retirement Obligations IncreaseDecreaseInNonCashAssetRetirementObligations	4917000	USD
CY2021	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	2900000	USD
CY2020Q4	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2021	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	32860000	USD
CY2020Q4	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	0	USD
	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	0	USD
CY2019	us-gaap	Other Significant Noncash Transaction Value Of Consideration Received1 OtherSignificantNoncashTransactionValueOfConsiderationReceived1	0	USD
CY2020Q4	oas	Reorganization Value Post Petition Liabilities And Allowed Claims ReorganizationValuePostPetitionLiabilitiesAndAllowedClaims	3200000000	USD
CY2020Q4	us-gaap	Reorganization Value ReorganizationValue	1300000000	USD
CY2020Q4	us-gaap	Reorganization Value ReorganizationValue	1300000000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Cash And Cash Equivalents1 FreshStartAdjustmentIncreaseDecreaseCashAndCashEquivalents1	5615000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Fair Value Of Debt Related To Credit Facility FreshStartAdjustmentIncreaseDecreaseFairValueOfDebtRelatedToCreditFacility	-340000000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Implied Value FreshStartAdjustmentIncreaseDecreaseImpliedValue	965615000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Fair Value Of Non Controlling Interest FreshStartAdjustmentIncreaseDecreaseFairValueOfNonControllingInterest	92816000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Stockholders Equity1 FreshStartAdjustmentIncreaseDecreaseStockholdersEquity1	1058431000	USD
CY2020Q4	oas	Reorganization Value Restricted Cash Attributable To Related Party ReorganizationValueRestrictedCashAttributableToRelatedParty	4500000	USD
CY2020Q4	oas	Reorganization Value Restricted Cash ReorganizationValueRestrictedCash	1400000	USD
CY2020Q4	oas	Reorganization Value Restricted Cash Related To Professional Fees ReorganizationValueRestrictedCashRelatedToProfessionalFees	10400000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	20000000	shares
CY2020Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	1621622	shares
CY2020Q4	us-gaap	Reorganization Value ReorganizationValue	1300000000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Fair Value Of Non Controlling Interest FreshStartAdjustmentIncreaseDecreaseFairValueOfNonControllingInterest	92816000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Cash And Cash Equivalents1 FreshStartAdjustmentIncreaseDecreaseCashAndCashEquivalents1	5615000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Current Liabilities1 FreshStartAdjustmentIncreaseDecreaseCurrentLiabilities1	266796000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Asset Retirement Obligations FreshStartAdjustmentIncreaseDecreaseAssetRetirementObligations	45161000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Other Noncurrent Obligations1 FreshStartAdjustmentIncreaseDecreaseOtherNoncurrentObligations1	28086000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Current Liabilities Held For Sale FreshStartAdjustmentIncreaseDecreaseCurrentLiabilitiesHeldForSale	38796000	USD
CY2020Q4	oas	Fresh Start Adjustment Increase Decrease Noncurrent Liabilities Held For Sale FreshStartAdjustmentIncreaseDecreaseNoncurrentLiabilitiesHeldForSale	5221000	USD
CY2020Q4	oas	Reorganization Value Related To Successor Assets ReorganizationValueRelatedToSuccessorAssets	2237991000	USD
CY2020Q4	oas	Reorganization Value Restricted Cash Attributable To Related Party ReorganizationValueRestrictedCashAttributableToRelatedParty	4500000	USD
CY2020Q4	oas	Reorganization Value Restricted Cash ReorganizationValueRestrictedCash	1400000	USD
CY2020Q4	oas	Reorganization Value Restricted Cash Related To Professional Fees ReorganizationValueRestrictedCashRelatedToProfessionalFees	10400000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4241000	USD
CY2020Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	11800000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	234413000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	21969000	USD
CY2020Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	3760000	USD
CY2020Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	728000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	104000	USD
CY2020Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	62070000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	339085000	USD
CY2020Q4	us-gaap	Oil And Gas Property Successful Effort Method Gross OilAndGasPropertySuccessfulEffortMethodGross	795247000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	44999000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	0	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	840246000	USD
CY2020Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	47000	USD
CY2020Q4	us-gaap	Inventory Noncurrent InventoryNoncurrent	12234000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10712000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	18754000	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Assets Noncurrent DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent	1016913000	USD
CY2020Q4	us-gaap	Assets Assets	2237991000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	21518000	USD
CY2020Q4	oas	Revenues Payable And Production Taxes Current RevenuesPayableAndProductionTaxesCurrent	129031000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	105916000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	42000	USD
CY2020Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	4969000	USD
CY2020Q4	oas	Advances From Joint Interest Partners Current AdvancesFromJointInterestPartnersCurrent	2725000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	957000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1638000	USD
CY2020Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	38796000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	305592000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	340000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	4431000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	45161000	USD
CY2020Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	5357000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	14794000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	3504000	USD
CY2020Q4	us-gaap	Liabilities Subject To Compromise LiabilitiesSubjectToCompromise	0	USD
CY2020Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Noncurrent LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent	460721000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	1179560000	USD
CY2020Q4	oas	Reorganization Value Liabilities Subject To Compromise Accounts Payable ReorganizationValueLiabilitiesSubjectToCompromiseAccountsPayable	19900000	USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	200000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	965415000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	965615000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	92816000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1058431000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2237991000	USD
CY2020Q4	oas	Reorganization Value Payment Of Dip Facility Principal ReorganizationValuePaymentOfDIPFacilityPrincipal	20640000	USD
CY2020Q4	oas	Reorganization Value Payment Of Contract Cure ReorganizationValuePaymentOfContractCure	20000000	USD
CY2020Q4	oas	Reorganization Value Funding Of Professional Fee Escrow Account ReorganizationValueFundingOfProfessionalFeeEscrowAccount	11800000	USD
CY2020Q4	oas	Reorganization Value Payment Of Debt Issuance Costs Related To Exit Facility ReorganizationValuePaymentOfDebtIssuanceCostsRelatedToExitFacility	6900000	USD
CY2020Q4	oas	Reorganization Value Payment Of Professional Fees ReorganizationValuePaymentOfProfessionalFees	3766000	USD
CY2020Q4	oas	Reorganization Value Payment Of Dip Accrued Interest And Fees ReorganizationValuePaymentOfDIPAccruedInterestAndFees	1375000	USD
CY2020Q4	oas	Reorganization Value Payment Of Credit Facility Accrued Interest And Fees ReorganizationValuePaymentOfCreditFacilityAccruedInterestAndFees	836000	USD
CY2020Q4	oas	Reorganization Value Uses Of Cash ReorganizationValueUsesOfCash	65317000	USD
CY2020Q4	oas	Reorganization Value Reclassification Of Payable For Vested Awards ReorganizationValueReclassificationOfPayableForVestedAwards	1900000	USD
CY2020Q4	oas	Reorganization Value Reinstatement Of Accrued Expenses From Liabilities Subject To Compromise ReorganizationValueReinstatementOfAccruedExpensesFromLiabilitiesSubjectToCompromise	73778000	USD
CY2020Q4	oas	Reorganization Value Payment Of Professional Fees Upon Emergence ReorganizationValuePaymentOfProfessionalFeesUponEmergence	4603000	USD
CY2020Q4	oas	Reorganization Value Vesting Of Compensation Awards Classified As Liabilities ReorganizationValueVestingOfCompensationAwardsClassifiedAsLiabilities	1142000	USD
CY2020Q4	oas	Reorganization Value Payment Of Contract Cure ReorganizationValuePaymentOfContractCure	20000000	USD
CY2020Q4	oas	Reorganization Value Reclassification Of Payable For Vested Awards ReorganizationValueReclassificationOfPayableForVestedAwards	1913000	USD
CY2020Q4	oas	Reorganization Value Professional Fee Accrued ReorganizationValueProfessionalFeeAccrued	140000	USD
CY2020Q4	oas	Reorganization Value Increase Decrease In Accrued Liabilities Net ReorganizationValueIncreaseDecreaseInAccruedLiabilitiesNet	57470000	USD
CY2020Q4	us-gaap	Interest Expense Debt InterestExpenseDebt	28000000	USD
CY2020Q4	us-gaap	Debtor In Possession Financing Amount Arranged DebtorInPossessionFinancingAmountArranged	20600000	USD
CY2020Q4	oas	Reorganization Value Notes ReorganizationValueNotes	1825757000	USD
CY2020Q4	oas	Reorganization Value Accrued Interest On Notes ReorganizationValueAccruedInterestOnNotes	50337000	USD
CY2020Q4	oas	Reorganization Value Asset Retirement Obligation ReorganizationValueAssetRetirementObligation	57306000	USD
CY2020Q4	oas	Reorganization Value Accounts Payable And Accrued Liabilities ReorganizationValueAccountsPayableAndAccruedLiabilities	93674000	USD
CY2020Q4	oas	Reorganization Value Other Liabilities ReorganizationValueOtherLiabilities	24220000	USD
CY2020Q4	oas	Reorganization Value Liabilities Subject To Compromise ReorganizationValueLiabilitiesSubjectToCompromise	2051294000	USD
CY2020Q4	oas	Reorganization Value Reinstatement Of Liabilities Unsecured Claims ReorganizationValueReinstatementOfLiabilitiesUnsecuredClaims	175200000	USD
CY2020Q4	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	941810000	USD
CY2020Q4	oas	Reorganization Value Gain Loss On Settlements Of Liabilities Subject To Compromise ReorganizationValueGainLossOnSettlementsOfLiabilitiesSubjectToCompromise	934284000	USD
CY2020Q4	oas	Reorganization Value Cancellation Of Accumulated Deficit ReorganizationValueCancellationOfAccumulatedDeficit	3086292000	USD
CY2020Q4	oas	Reorganization Value Common Stock Value Cancelled ReorganizationValueCommonStockValueCancelled	3233000	USD
CY2020Q4	oas	Reorganization Value Treasury Stock Value Cancelled ReorganizationValueTreasuryStockValueCancelled	36637000	USD
CY2020Q4	oas	Reorganization Value Compensation For Vesting Awards Equity ReorganizationValueCompensationForVestingAwardsEquity	12055000	USD
CY2020Q4	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	23805000	USD
CY2020Q4	oas	Reorganization Value Increase Decrease In Additional Paid In Capital ReorganizationValueIncreaseDecreaseInAdditionalPaidInCapital	-3131446000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	20000000	shares
CY2020Q4	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	0.01
CY2020Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	1621622	shares
CY2020Q4	oas	Reorganization Value Fair Value Method Exercise Price Of Warrants Or Rights ReorganizationValueFairValueMethodExercisePriceOfWarrantsOrRights	14.68
CY2020Q4	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	941810000	USD
CY2020Q4	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	23805000	USD
CY2020Q4	us-gaap	Equity Fair Value Adjustment EquityFairValueAdjustment	965615000	USD
	oas	Reorganization Value Net Income Loss From Reorganization Adjustments ReorganizationValueNetIncomeLossFromReorganizationAdjustments	948109000	USD
CY2020Q4	oas	Reorganization Value Cancellation Of Accumulated Deficit ReorganizationValueCancellationOfAccumulatedDeficit	3086292000	USD
CY2020Q4	oas	Fresh Start Adjustments Deferred Financing Cost Adjustment Related To Infrastructure Costs FreshStartAdjustmentsDeferredFinancingCostAdjustmentRelatedToInfrastructureCosts	8100000	USD
CY2020Q4	oas	Fresh Start Adjustments Deferred Financing Costs Adjustment Related To Finance Lease Right Of Use Assets FreshStartAdjustmentsDeferredFinancingCostsAdjustmentRelatedToFinanceLeaseRightOfUseAssets	100000	USD
CY2020Q4	oas	Reorganization Value Noncurrent Asset Held For Sale ReorganizationValueNoncurrentAssetHeldForSale	95882000	USD
CY2020Q4	oas	Asset Retirement Obligations Fair Value Measurements Inflation Factor AssetRetirementObligationsFairValueMeasurementsInflationFactor	0.02
CY2020Q4	oas	Asset Retirement Obligations Fair Value Assumptions Risk Free Rate AssetRetirementObligationsFairValueAssumptionsRiskFreeRate	0.085
CY2020Q4	oas	Derivative Instrument Fair Value Measurements Risk Free Rate DerivativeInstrumentFairValueMeasurementsRiskFreeRate	0.0512
CY2020Q4	oas	Fresh Start Adjustment Net Income Loss FreshStartAdjustmentNetIncomeLoss	-39192000	USD
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Preparation of the Company’s consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The most significant estimates pertain to proved crude oil and natural gas reserves and related cash flow estimates used in impairment tests of long-lived assets, estimates of future development, dismantlement and abandonment costs, estimates relating to certain crude oil and natural gas revenues and expenses and estimates of expenses related to legal, environmental and other contingencies. Certain of these estimates require assumptions regarding future commodity prices, future costs and expenses and future production rates. Actual results could differ from those estimates.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Estimates of crude oil and natural gas reserves and their values, future production rates and future costs and expenses are inherently uncertain for numerous reasons, including many factors beyond the Company’s control. Reservoir engineering is a subjective process of estimating underground accumulations of crude oil and natural gas that cannot be measured in an exact manner. The accuracy of any reserve estimate is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, prevailing commodity prices, operating costs and other factors. These revisions may be material and could materially affect future depreciation, depletion and amortization (“DD&A”) expense, dismantlement and abandonment costs, and impairment expense.</span></div>
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	174783000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20226000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	172114000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10709000	USD
CY2021Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2020Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	4370000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2100000	USD
CY2020Q4	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	100000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	6400000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	12000000	USD
CY2020Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2020Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4457000	USD
CY2021	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	0	USD
CY2020Q4	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	0	USD
	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	0	USD
CY2019	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	0	USD
CY2021	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	0	USD
CY2020Q4	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	0	USD
	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	0	USD
CY2019	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	4222000	USD
CY2021	us-gaap	Results Of Operations Dry Hole Costs ResultsOfOperationsDryHoleCosts	0	USD
CY2020Q4	us-gaap	Results Of Operations Dry Hole Costs ResultsOfOperationsDryHoleCosts	0	USD
	us-gaap	Results Of Operations Dry Hole Costs ResultsOfOperationsDryHoleCosts	0	USD
CY2019	us-gaap	Results Of Operations Dry Hole Costs ResultsOfOperationsDryHoleCosts	235000	USD
CY2021	oas	Reclassification To Well Facilities And Equipment Based On Cancelled Wells Written Off ReclassificationToWellFacilitiesAndEquipmentBasedOnCancelledWellsWrittenOff	-1000	USD
CY2020Q4	oas	Reclassification To Well Facilities And Equipment Based On Cancelled Wells Written Off ReclassificationToWellFacilitiesAndEquipmentBasedOnCancelledWellsWrittenOff	0	USD
	oas	Reclassification To Well Facilities And Equipment Based On Cancelled Wells Written Off ReclassificationToWellFacilitiesAndEquipmentBasedOnCancelledWellsWrittenOff	0	USD
CY2019	oas	Reclassification To Well Facilities And Equipment Based On Cancelled Wells Written Off ReclassificationToWellFacilitiesAndEquipmentBasedOnCancelledWellsWrittenOff	0	USD
CY2021Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	1000	USD
CY2020Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2020Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	USD
CY2021Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	0	USD
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentrations of Market and Credit Risk</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The future results of the Company’s E&P operations will be affected by the market prices of crude oil, natural gas and NGLs. The availability of a ready market for crude oil and natural gas products in the future will depend on numerous factors beyond the Company’s control, including weather, imports, marketing of competitive fuels, proximity and capacity of crude oil and natural gas pipelines and other transportation facilities, any oversupply or undersupply of crude oil, natural gas and liquid products, the regulatory environment, the economic environment, and other regional and political events, none of which can be predicted with certainty. Commodity prices have been volatile in recent years. Due to a combination of the impacts of the COVID-19 pandemic and geopolitical pressures on the global supply and demand balance for crude oil and related products, commodity prices sharply declined in early 2020, which adversely affected the Company’s business, operating results and liquidity. A substantial or extended decline in the price of crude oil could have a further material adverse effect on the Company’s financial position, cash flows and results of operations.</span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company’s receivables include amounts due from purchasers of its crude oil and natural gas production and amounts due from joint interest partners for their respective portions of operating expenses and exploration and development costs. While certain of these customers and joint interest partners are affected by periodic downturns in the economy in general or in their specific segment of the crude oil or natural gas industry, including the current commodity price environment, the Company believes that its level of credit-related losses due to such economic fluctuations has been and will continue to be immaterial to the Company’s results of operations over the long term. </span></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company manages and controls market and counterparty credit risk. In the normal course of business, collateral is not required for financial instruments with credit risk. Financial instruments, which potentially subject the Company to credit risk, consist principally of temporary cash balances and derivative financial instruments. The Company maintains cash and cash equivalents in bank deposit accounts which, at times, may exceed the federally insured limits. The Company has not experienced any significant losses from such investments. The Company attempts to limit the amount of credit exposure to any one financial institution or company. The Company believes the credit quality of its customers is generally high. In the normal </span></div>course of business, letters of credit or parent guarantees are required for counterparties which management perceives to have a higher credit risk.
CY2021Q4	oas	Derivative Numberof Counterparties DerivativeNumberofCounterparties	8	counterparty
CY2021Q4	oas	Derivative Instrument Receivables From Counterparty Past Due DerivativeInstrumentReceivablesFromCounterpartyPastDue	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1579926000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	106993000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	845457000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1930797000	USD
CY2021Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	12175000	USD
CY2020Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	12798000	USD
CY2021Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	16781000	USD
CY2020Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	8826000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	28956000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	21624000	USD
CY2021Q4	oas	Inventory Noncurrent Linefill InventoryNoncurrentLinefill	17510000	USD
CY2020Q4	oas	Inventory Noncurrent Linefill InventoryNoncurrentLinefill	14522000	USD
CY2021Q4	us-gaap	Inventory Noncurrent InventoryNoncurrent	17510000	USD
CY2020Q4	us-gaap	Inventory Noncurrent InventoryNoncurrent	14522000	USD
CY2021Q4	oas	Inventory Currentand Noncurrent InventoryCurrentandNoncurrent	46466000	USD
CY2020Q4	oas	Inventory Currentand Noncurrent InventoryCurrentandNoncurrent	36146000	USD
CY2021Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	378916000	USD
CY2020Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	202346000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1714000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	106000	USD
CY2021Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	377202000	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	202240000	USD
CY2021Q4	oas	Revenue Suspense RevenueSuspense	103693000	USD
CY2020Q4	oas	Revenue Suspense RevenueSuspense	66602000	USD
CY2021Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	147932000	USD
CY2020Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	65412000	USD
CY2021Q4	oas	Production Taxes Payable ProductionTaxesPayable	18681000	USD
CY2020Q4	oas	Production Taxes Payable ProductionTaxesPayable	12851000	USD
CY2021Q4	oas	Revenues Payable And Production Taxes Current RevenuesPayableAndProductionTaxesCurrent	270306000	USD
CY2020Q4	oas	Revenues Payable And Production Taxes Current RevenuesPayableAndProductionTaxesCurrent	144865000	USD
CY2021Q4	oas	Accrued Capital Costs AccruedCapitalCosts	33085000	USD
CY2020Q4	oas	Accrued Capital Costs AccruedCapitalCosts	36051000	USD
CY2021Q4	oas	Accrued Lease Operating Expense AccruedLeaseOperatingExpense	29478000	USD
CY2020Q4	oas	Accrued Lease Operating Expense AccruedLeaseOperatingExpense	18635000	USD
CY2021Q4	oas	Accrued Bulk Purchases AccruedBulkPurchases	35211000	USD
CY2020Q4	oas	Accrued Bulk Purchases AccruedBulkPurchases	8967000	USD
CY2021Q4	oas	Accrued General And Administrative Expense AccruedGeneralAndAdministrativeExpense	13270000	USD
CY2020Q4	oas	Accrued General And Administrative Expense AccruedGeneralAndAdministrativeExpense	35471000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	39630000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9018000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	150674000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	108142000	USD
CY2021Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	5300000	USD
CY2020Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	4300000	USD
CY2021	oas	Payments For Proceeds From Derivative Modification Investing Activities PaymentsForProceedsFromDerivativeModificationInvestingActivities	220900000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-204674000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	44865000	USD
CY2021Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	44865000	USD
CY2021Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1393836000	USD
CY2020Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	770393000	USD
CY2021Q4	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion And Amortization OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization	107277000	USD
CY2021Q4	oas	Proved Oil And Gas Properties Net ProvedOilAndGasPropertiesNet	1286559000	USD
CY2020Q4	oas	Proved Oil And Gas Properties Net ProvedOilAndGasPropertiesNet	757990000	USD
CY2021Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	2001000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	48981000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	51505000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	17109000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	1881000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	31872000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	49624000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1320432000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	847825000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	392524000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	260000000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	392500000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	54909000	USD
	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	535000	USD
	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	196000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2696000	USD
	oas	Asset Retirement Obligation Fresh Start Adjustment AssetRetirementObligationFreshStartAdjustment	10552000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	47392000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	47392000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	35000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	336000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	47763000	USD
CY2021	oas	Asset Retirement Obligation Liabilities Incurred Through Acquisitions AssetRetirementObligationLiabilitiesIncurredThroughAcquisitions	14850000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	729000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	5193000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	4068000	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	199000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	62416000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	4800000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	2200000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020Q4	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-36000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-43000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4000	USD
CY2020Q4	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	27000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4000	USD
CY2020Q4	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-36000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-16000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-977000	USD
CY2020Q4	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2918000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-221277000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-28148000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-977000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2020Q4	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-529000	USD
	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-41649000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4551000	USD
CY2020Q4	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3447000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-262926000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-32699000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-973000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3447000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-262962000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-32715000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	74412000	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0
CY2020Q4	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-10376000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-837391000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-25906000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.026
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9161000	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2020Q4	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1373000	USD
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.023
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-93063000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-3573000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.021
CY2021	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	7496000	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.017
	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	-17699000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.064
CY2020Q4	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	830000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.004
CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	7895000	USD
CY2021	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	0.007
CY2021	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	2510000	USD
CY2020Q4	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	0
CY2020Q4	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	0	USD
	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	0
	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	1372000	USD
CY2019	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationPercent	-0.017
CY2019	oas	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationAmount	2094000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2020Q4	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.002
	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	8687000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.018
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	2163000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.468
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-165639000	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.181
CY2020Q4	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	8936000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.139
	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	553580000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2021	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Percent EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsPercent	0.246
CY2021	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Amount EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsAmount	87070000	USD
CY2020Q4	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Percent EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsPercent	-0.005
CY2020Q4	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Amount EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsAmount	232000	USD
	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Percent EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsPercent	-0.021
	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Amount EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsAmount	85149000	USD
CY2019	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Percent EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsPercent	0
CY2019	oas	Effective Income Tax Rate Reconciliation Discharge Of Debt And Other Reorganization Items Amount EffectiveIncomeTaxRateReconciliationDischargeOfDebtAndOtherReorganizationItemsAmount	0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.003
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	-991000	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.001
CY2020Q4	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	-36000	USD
	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	1005000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.003
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	14928000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	68526000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	7000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	984000	USD
CY2021Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	399800000	USD
CY2020Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	565400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	91213000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	22248000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	12924000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	14843000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7424000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	414691000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	632951000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	399770000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	565409000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14921000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	67542000	USD
CY2021Q4	oas	Deferred Tax Liabilities Investmentin Subsidiaries DeferredTaxLiabilitiesInvestmentinSubsidiaries	0	USD
CY2020Q4	oas	Deferred Tax Liabilities Investmentin Subsidiaries DeferredTaxLiabilitiesInvestmentinSubsidiaries	67210000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	14928000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1316000	USD
CY2021Q2	oas	Payment Of Estimated Income Tax PaymentOfEstimatedIncomeTax	20000000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	402000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.003
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-973000	USD
CY2020Q4	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.070
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3447000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.067
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-262962000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.265
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-32715000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	51942000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	34691000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	237051000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	566856000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	6718000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	1732000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14700000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	4000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7800000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2020Q4	us-gaap	Shares Issued SharesIssued	65000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	100000000	USD
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	871018	shares
CY2021	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	114.79
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	100000000	USD
CY2020Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	1621622	shares
CY2020Q4	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	94.57
CY2021Q3	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	90.57
CY2021Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	1507976	shares
CY2021Q3	oas	Share Purchase Right Convertible Ratio SharePurchaseRightConvertibleRatio	1
CY2021Q3	oas	Share Purchase Right Change Of Control Percentage Per Individual SharePurchaseRightChangeOfControlPercentagePerIndividual	0.0495
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19792000	shares
CY2020Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19991000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	317644000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	317644000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	315002000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	315002000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	856000	shares
CY2020Q4	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2020Q4	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20648000	shares
CY2020Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19991000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	317644000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	315002000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2144000	shares
CY2020Q4	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1631000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5216000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9242000	shares
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	2966000	USD
CY2020Q4	us-gaap	Operating Lease Cost OperatingLeaseCost	666000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3245000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	23137000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	1737000	USD
CY2020Q4	us-gaap	Variable Lease Cost VariableLeaseCost	425000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	2433000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	8776000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	8244000	USD
CY2020Q4	us-gaap	Short Term Lease Cost ShortTermLeaseCost	554000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	9807000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4513000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1578000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	151000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1959000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2543000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	86000	USD
CY2020Q4	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	9000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	145000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	260000	USD
CY2021	us-gaap	Lease Cost LeaseCost	14611000	USD
CY2020Q4	us-gaap	Lease Cost LeaseCost	1805000	USD
	us-gaap	Lease Cost LeaseCost	17589000	USD
CY2019	us-gaap	Lease Cost LeaseCost	39229000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8251000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1029000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5845000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	181000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	598000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	409000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	15103000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1210000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	486000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	22000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	14617000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1188000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	15782000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4440000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1124000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	2849000	USD
CY2021Q4	oas	Lessee Right Of Use Asset LesseeRightOfUseAsset	16906000	USD
CY2020Q4	oas	Lessee Right Of Use Asset LesseeRightOfUseAsset	7289000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7893000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1662000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1008000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1605000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	6724000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1629000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	180000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	1355000	USD
CY2021Q4	oas	Lessee Lease Liability LesseeLeaseLiability	15805000	USD
CY2020Q4	oas	Lessee Lease Liability LesseeLeaseLiability	6251000	USD
CY2021Q4	oas	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	900000	USD
CY2020Q4	oas	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	200000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	3420000	USD
CY2020Q4	us-gaap	Operating Lease Payments OperatingLeasePayments	1992000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	6624000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	30316000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	62000	USD
CY2020Q4	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	9000	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	145000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	260000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1161000	USD
CY2020Q4	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	202000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1989000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2382000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	14140000	USD
CY2020Q4	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	797000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12746000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	127000	USD
CY2021	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	170178000	USD
CY2021	us-gaap	Costs Incurred Asset Retirement Obligation Incurred CostsIncurredAssetRetirementObligationIncurred	15750000	USD
CY2021	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties CostsIncurredAcquisitionOfOilAndGasProperties	791882000	USD
CY2018Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	228416000	MBbls
CY2019	srt	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	87382000	MMcf
CY2020Q4	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	24000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3433000	USD
CY2021	oas	Right Of Use Asset Reduced From Reduction Operating Lease Liability RightOfUseAssetReducedFromReductionOperatingLeaseLiability	0	USD
CY2020Q4	oas	Right Of Use Asset Reduced From Reduction Operating Lease Liability RightOfUseAssetReducedFromReductionOperatingLeaseLiability	6255000	USD
	oas	Right Of Use Asset Reduced From Reduction Operating Lease Liability RightOfUseAssetReducedFromReductionOperatingLeaseLiability	0	USD
CY2019	oas	Right Of Use Asset Reduced From Reduction Operating Lease Liability RightOfUseAssetReducedFromReductionOperatingLeaseLiability	0	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y10M24D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M6D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.034
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.039
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y1M6D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y7M6D
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.035
CY2018Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	552726000	MMcf
CY2018Q4	srt	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	320537000	MBoe
CY2019	srt	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	-51965000	MBbls
CY2019	srt	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	-68301000	MMcf
CY2019	srt	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-63349000	MBoe
CY2019	srt	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	49297000	MBbls
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.036
CY2021Q4	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	111323000	USD
CY2021Q4	us-gaap	Other Commitment Due In Second Year OtherCommitmentDueInSecondYear	108006000	USD
CY2021Q4	us-gaap	Other Commitment Due In Third Year OtherCommitmentDueInThirdYear	94573000	USD
CY2021Q4	us-gaap	Other Commitment Due In Fourth Year OtherCommitmentDueInFourthYear	85986000	USD
CY2021Q4	us-gaap	Other Commitment Due In Fifth Year OtherCommitmentDueInFifthYear	66363000	USD
CY2021Q4	us-gaap	Other Commitment Due After Fifth Year OtherCommitmentDueAfterFifthYear	81447000	USD
CY2021Q4	us-gaap	Other Commitment OtherCommitment	547698000	USD
CY2021Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1393836000	USD
CY2021Q4	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion And Amortization OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization	107277000	USD
CY2021Q4	oas	Proved Oil And Gas Properties Net ProvedOilAndGasPropertiesNet	1286559000	USD
CY2021Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	2001000	USD
CY2021Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	1288560000	USD
CY2021	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	605868000	USD
CY2021	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	85000	USD
CY2021	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	1000	USD
CY2019	srt	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	63861000	MBoe
CY2019	srt	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	2136000	MBbls
CY2019	srt	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	2368000	MMcf
CY2019	srt	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	2531000	MBoe
CY2019	srt	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	22825000	MBbls
CY2019	srt	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	55906000	MMcf
CY2019	srt	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	32142000	MBoe
CY2019Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	200787000	MBbls
CY2019Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	513533000	MMcf
CY2019Q4	srt	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	286376000	MBoe
CY2019Q4	srt	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	113418000	MBbls
CY2019Q4	srt	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	314000000	MMcf
CY2019Q4	srt	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	165751000	MBoe
CY2019Q4	srt	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	87369000	MBbls
CY2019Q4	srt	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	199533000	MMcf
CY2019Q4	srt	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	120625000	MBoe
CY2019Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	200787000	MBbls
CY2019Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	513533000	MMcf
CY2019Q4	srt	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	286376000	MBoe
CY2020	srt	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	-69782000	MBbls
CY2020	srt	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	-98815000	MMcf
CY2020	srt	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-86251000	MBoe
CY2020	srt	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	4578000	MBbls
CY2020	srt	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	8659000	MMcf
CY2020	srt	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	6021000	MBoe
CY2020	srt	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	15818000	MBbls
CY2020	srt	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	47207000	MMcf
CY2020	srt	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	23686000	MBoe
CY2020Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	119765000	MBbls
CY2020Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	376170000	MMcf
CY2020Q4	srt	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	182460000	MBoe
CY2020Q4	srt	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	85428000	MBbls
CY2020Q4	srt	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	262676000	MMcf
CY2020Q4	srt	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	129207000	MBoe
CY2020Q4	srt	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	34337000	MBbls
CY2020Q4	srt	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	113494000	MMcf
CY2020Q4	srt	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	53253000	MBoe
CY2020Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	119765000	MBbls
CY2020Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	376170000	MMcf
CY2020Q4	srt	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	182460000	MBoe
CY2021	srt	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	42411000	MBbls
CY2021	srt	Proved Developed And Undeveloped Reserves Revisions Of Previous Estimates Increase Decrease ProvedDevelopedAndUndevelopedReservesRevisionsOfPreviousEstimatesIncreaseDecrease	68768000	MMcf
CY2021	srt	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	53871000	MBoe
CY2021	srt	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	7734000	MBbls
CY2021	srt	Proved Developed And Undeveloped Reserves Extensions Discoveries And Additions ProvedDevelopedAndUndevelopedReservesExtensionsDiscoveriesAndAdditions	14539000	MMcf
CY2021	srt	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	10157000	MBoe
CY2021	srt	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	24760000	MBbls
CY2021	srt	Proved Developed And Undeveloped Reserves Sales Of Minerals In Place ProvedDevelopedAndUndevelopedReservesSalesOfMineralsInPlace	40211000	MMcf
CY2021	srt	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	31461000	MBoe
CY2021	srt	Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace	42656000	MBbls
CY2021	srt	Proved Developed And Undeveloped Reserves Purchases Of Minerals In Place ProvedDevelopedAndUndevelopedReservesPurchasesOfMineralsInPlace	86153000	MMcf
CY2021	srt	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	57015000	MBoe
CY2021	srt	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	13489000	MBbls
CY2021	srt	Proved Developed And Undeveloped Reserves Production ProvedDevelopedAndUndevelopedReservesProduction	46157000	MMcf
CY2021	srt	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	21182000	MBoe
CY2021Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	174317000	MBbls
CY2021Q4	srt	Proved Developed And Undeveloped Reserves Net ProvedDevelopedAndUndevelopedReservesNet	459262000	MMcf
CY2021Q4	srt	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	250860000	MBoe
CY2021Q4	srt	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	114041000	MBbls
CY2021Q4	srt	Proved Developed Reserves Volume ProvedDevelopedReservesVolume	361836000	MMcf
CY2021Q4	srt	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	174347000	MBoe
CY2021Q4	srt	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	60276000	MBbls
CY2021Q4	srt	Proved Undeveloped Reserve Volume ProvedUndevelopedReserveVolume	97426000	MMcf
CY2021Q4	srt	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	76513000	MBoe
CY2021	srt	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	53900000	Boe
CY2021	oas	Proved Developedand Undeveloped Reserve Revisionof Previous Estimate Percentage ProvedDevelopedandUndevelopedReserveRevisionofPreviousEstimatePercentage	0.30
CY2021	oas	Proved Developed Reserve Revisionof Previous Estimate ProvedDevelopedReserveRevisionofPreviousEstimate	20300000	Boe
CY2020	oas	Unweighted Arithmetic Average First Day Of Month Prices UnweightedArithmeticAverageFirstDayOfMonthPrices	39.54
CY2020	srt	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-86300000	Boe
CY2020	oas	Proved Developedand Undeveloped Reserve Revisionof Previous Estimate Percentage ProvedDevelopedandUndevelopedReserveRevisionofPreviousEstimatePercentage	-0.30
CY2019	srt	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-63300000	Boe
CY2019	oas	Proved Developedand Undeveloped Reserve Revisionof Previous Estimate Percentage ProvedDevelopedandUndevelopedReserveRevisionofPreviousEstimatePercentage	-0.20
CY2021	srt	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	10200000	Boe
CY2021	oas	Additional Proved Undeveloped Reserves AdditionalProvedUndevelopedReserves	7600000	Boe
CY2021	oas	Estimated Extensions And Discoveries Of Reserves Associated With New Wells EstimatedExtensionsAndDiscoveriesOfReservesAssociatedWithNewWells	2600000	Boe
CY2020	srt	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	6000000.0	Boe
CY2020	oas	Estimated Extensions And Discoveries Of Reserves Associated With New Wells EstimatedExtensionsAndDiscoveriesOfReservesAssociatedWithNewWells	3200000	Boe
CY2020	oas	Additional Proved Undeveloped Reserves AdditionalProvedUndevelopedReserves	2800000	Boe
CY2019	srt	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	63900000	Boe
CY2019	oas	Estimated Extensions And Discoveries Of Reserves Associated With New Wells EstimatedExtensionsAndDiscoveriesOfReservesAssociatedWithNewWells	10300000	Boe
CY2019	oas	Additional Proved Undeveloped Reserves AdditionalProvedUndevelopedReserves	53600000	Boe
CY2020	srt	Proved Developed And Undeveloped Reserves Sale Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy	0	Boe
CY2019	srt	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	0	MMBoe
CY2019	srt	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	0	MMBoe
CY2021	oas	Unweighted Arithmetic Average First Day Of Month Prices UnweightedArithmeticAverageFirstDayOfMonthPrices	66.55
CY2021	oas	Unweighted Arithmetic Average First Day Of Month Prices For Natural Gas UnweightedArithmeticAverageFirstDayOfMonthPricesForNaturalGas	3.64
CY2020	oas	Unweighted Arithmetic Average First Day Of Month Prices For Natural Gas UnweightedArithmeticAverageFirstDayOfMonthPricesForNaturalGas	2.03
CY2019	oas	Unweighted Arithmetic Average First Day Of Month Prices UnweightedArithmeticAverageFirstDayOfMonthPrices	55.85
CY2019	oas	Unweighted Arithmetic Average First Day Of Month Prices For Natural Gas UnweightedArithmeticAverageFirstDayOfMonthPricesForNaturalGas	2.62
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	13366064000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	5197220000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	12385040000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	6548794000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	2792921000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	5509127000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	1322207000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	610658000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	1490521000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	717721000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	232849000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	188823000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	4777342000	USD
CY2020Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1560792000	USD
CY2019Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	5196569000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	2080404000	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	611915000	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	2352200000	USD
CY2021Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	2696938000	USD
CY2020Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	948877000	USD
CY2019Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	2844369000	USD
CY2020Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	948877000	USD
CY2019Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	2844369000	USD
CY2018Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	4050306000	USD
CY2021	srt	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	1617331000	USD
CY2020	srt	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-1088936000	USD
CY2019	srt	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-1070192000	USD
CY2021	srt	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	-36645000	USD
CY2020	srt	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	4640000	USD
CY2019	srt	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	131003000	USD
CY2021	srt	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	796874000	USD
CY2020	srt	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	407417000	USD
CY2019	srt	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	943989000	USD
CY2021	srt	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	780442000	USD
CY2020	srt	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	0	USD
CY2019	srt	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	0	USD
CY2021	srt	Decrease Due To Sales Of Minerals In Place DecreaseDueToSalesOfMineralsInPlace	204153000	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	36907000	USD
CY2021	srt	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	639320000	USD
CY2020	srt	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-694320000	USD
CY2019	srt	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-732253000	USD
CY2021	srt	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	102519000	USD
CY2020	srt	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	87640000	USD
CY2019	srt	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	246311000	USD
CY2021	srt	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	94090000	USD
CY2020	srt	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	293445000	USD
CY2019	srt	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	467426000	USD
CY2021	srt	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-252347000	USD
CY2020	srt	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	-76066000	USD
CY2019	srt	Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves	533872000	USD
CY2021	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-293747000	USD
CY2020	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-62171000	USD
CY2019	srt	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-238908000	USD
CY2021Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	2696938000	USD
CY2020Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	948877000	USD
CY2019Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	2844369000	USD

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$CHRD
Chord Energy Corp Stock $chrd

2021 Q4 Form 10-K Financial Statement

#000148615922000014 Filed on February 25, 2022

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$CHRD Chord Energy Corp Stock $chrd

2021 Q4 Form 10-K Financial Statement

#000148615922000014 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CHRD
Chord Energy Corp Stock $chrd