$KOS
Kosmos Energy Ltd. Stock $kos

$kos Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-Q Financial Statement

#000150999118000063 Filed on November 05, 2018

Income Statement

Concept	2018 Q4	2018 Q3	2017 Q3
Revenue	$301.4M	$242.8M	$151.2M
YoY Change	61.09%	60.56%	126.99%
Cost Of Revenue	$73.10M	$55.10M	$39.20M
YoY Change	58.23%	40.56%	188.24%
Gross Profit	$228.4M	$187.8M	$112.1M
YoY Change	62.1%	67.53%	238.67%
Gross Profit Margin	75.78%	77.34%	74.12%
Selling, General & Admin	$34.50M	$26.00M	$20.00M
YoY Change	94.92%	30.0%	-8.68%
% of Gross Profit	15.11%	13.84%	17.84%
Research & Development	$54.60M	$148.2M	$37.00M
YoY Change	2.25%	300.54%	-44.11%
% of Gross Profit	23.91%	78.91%	33.01%
Depreciation & Amortization	$123.5M	$82.40M	$76.10M
YoY Change	60.81%	8.28%	273.04%
% of Gross Profit	54.07%	43.88%	67.89%
Operating Expenses	$197.2M	$253.5M	$132.3M
YoY Change	43.0%	91.61%	18.34%
Operating Profit	$31.20M	-$65.70M	-$20.20M
YoY Change	940.0%	225.25%	-74.33%
Interest Expense	$247.9M	-$56.00M	-$44.70M
YoY Change	-299.12%	25.28%	-787.69%
% of Operating Profit	794.55%
Other Income/Expense, Net	$8.100M	$12.81M	-$233.0K
YoY Change		-5596.57%	-129.31%
Pretax Income	$287.0M	-$114.7M	-$64.92M
YoY Change	-336.21%	76.67%	24.22%
Income Tax	$101.5M	$11.36M	-$1.515M
% Of Pretax Income	35.37%
Net Earnings	$185.6M	-$126.1M	-$63.41M
YoY Change	-252.0%	98.81%	6.09%
Net Earnings / Revenue	61.57%	-51.91%	-41.92%
Basic Earnings Per Share	$0.44	-$0.31	-$0.16
Diluted Earnings Per Share	$0.43	-$0.31	-$0.16
COMMON SHARES
Basic Shares Outstanding	433.6M shares	404.5M shares	389.1M shares
Diluted Shares Outstanding		404.5M shares	389.1M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$173.5M	$192.6M	$164.2M
YoY Change	-25.66%	17.3%	50.64%
Cash & Equivalents	$173.5M	$192.6M	$164.2M
Short-Term Investments
Other Short-Term Assets	$111.3M	$105.7M	$81.50M
YoY Change	65.13%	29.69%	-21.33%
Inventory	$84.83M	$90.00M	$74.28M
Prepaid Expenses
Receivables	$48.16M	$131.5M	$51.73M
Other Receivables	$21.69M	$15.75M	$15.76M
Total Short-Term Assets	$509.7M	$640.8M	$469.1M
YoY Change	-4.48%	36.58%	21.35%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.460B	$3.510B	$2.258B
YoY Change	49.26%	55.4%	-18.12%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$51.90M	$88.65M	$122.7M
YoY Change	-78.06%	-27.73%	881.31%
Other Assets	$52.60M	$76.00M	$117.8M
YoY Change	-49.71%	-35.48%	-18.48%
Total Long-Term Assets	$3.578B	$3.689B	$2.501B
YoY Change	34.58%	47.47%	-14.2%
TOTAL ASSETS
Total Short-Term Assets	$509.7M	$640.8M	$469.1M
Total Long-Term Assets	$3.578B	$3.689B	$2.501B
Total Assets	$4.088B	$4.329B	$2.970B
YoY Change	28.05%	45.75%	-10.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$176.5M	$153.9M	$100.3M
YoY Change	24.51%	53.46%	-42.36%
Accrued Expenses	$195.6M	$262.3M	$173.8M
YoY Change	-10.85%	50.92%	78.81%
Deferred Revenue	$24.38M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$384.3M	$628.4M	$283.1M
YoY Change	-10.36%	121.97%	0.22%
LONG-TERM LIABILITIES
Long-Term Debt	$2.121B	$2.095B	$1.080B
YoY Change	65.31%	93.88%	-18.1%
Other Long-Term Liabilities	$9.160M	$9.277M	$9.871M
YoY Change	-13.68%	-6.02%	-88.82%
Total Long-Term Liabilities	$2.762B	$2.766B	$1.678B
YoY Change	47.98%	64.84%	19.23%
TOTAL LIABILITIES
Total Short-Term Liabilities	$384.3M	$628.4M	$283.1M
Total Long-Term Liabilities	$2.762B	$2.766B	$1.678B
Total Liabilities	$3.147B	$3.395B	$1.961B
YoY Change	37.08%	73.08%	-9.77%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.167B	-$1.353B	-$951.1M
YoY Change	8.76%	42.23%
Common Stock	$2.346B	$2.336B	$2.009B
YoY Change	16.21%	16.32%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$237.0M	$48.71M	$48.20M
YoY Change	391.75%	1.06%
Treasury Stock Shares	44.26M shares	9.263M shares	9.189M shares
Shareholders Equity	$941.5M	$934.9M	$1.009B
YoY Change
Total Liabilities & Shareholders Equity	$4.088B	$4.329B	$2.970B
YoY Change	28.05%	45.75%	-10.04%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2017 Q3
OPERATING ACTIVITIES
Net Income	$185.6M	-$126.1M	-$63.41M
YoY Change	-252.0%	98.81%	6.09%
Depreciation, Depletion And Amortization	$123.5M	$82.40M	$76.10M
YoY Change	60.81%	8.28%	273.04%
Cash From Operating Activities	$170.3M	$89.80M	$111.9M
YoY Change	19.76%	-19.75%	-369.64%
INVESTING ACTIVITIES
Capital Expenditures	-$68.90M	-$1.019B	-$58.10M
YoY Change	68.05%	1654.04%	-34.72%
Acquisitions
YoY Change
Other Investing Activities	$42.10M	$76.30M	$0.00
YoY Change	-118.2%		-100.0%
Cash From Investing Activities	-$26.80M	-$942.8M	-$58.10M
YoY Change	-90.16%	1522.72%	27.13%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-165.3M	914.0M	-50.20M
YoY Change	-182.73%	-1920.72%	-140.19%
NET CHANGE
Cash From Operating Activities	170.3M	89.80M	111.9M
Cash From Investing Activities	-26.80M	-942.8M	-58.10M
Cash From Financing Activities	-165.3M	914.0M	-50.20M
Net Change In Cash	-21.80M	61.00M	3.600M
YoY Change	-131.28%	1594.44%	-90.45%
FREE CASH FLOW
Cash From Operating Activities	$170.3M	$89.80M	$111.9M
Capital Expenditures	-$68.90M	-$1.019B	-$58.10M
Free Cash Flow	$239.2M	$1.109B	$170.0M
YoY Change	30.57%	552.29%	257.89%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018Q3	kos	Capitalized Exploratory Well Costs Greater Than Or Equal To One Year And Less Than Three Years CapitalizedExploratoryWellCostsGreaterThanOrEqualToOneYearAndLessThanThreeYears	296866000	USD
	kos	Capitalized Exploratory Well Cost Additions Associated With Acquisition CapitalizedExploratoryWellCostAdditionsAssociatedWithAcquisition	26426000	USD
	kos	Capitalized Exploratory Well Cost Expensed In Same Period CapitalizedExploratoryWellCostExpensedInSamePeriod	48000000	USD
CY2017Q4	kos	Capitalized Exploratory Well Costs Greater Than Or Equal To One Year And Less Than Three Years CapitalizedExploratoryWellCostsGreaterThanOrEqualToOneYearAndLessThanThreeYears	291252000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
	dei	Document Period End Date DocumentPeriodEndDate	2018-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001509991
CY2018Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	433617302	shares
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	Kosmos Energy Ltd.
	dei	Entity Small Business EntitySmallBusiness	false
CY2017Q4	kos	Accrual For All Other Taxes Current AccrualForAllOtherTaxesCurrent	3270000	USD
CY2018Q3	kos	Accrual For All Other Taxes Current AccrualForAllOtherTaxesCurrent	3457000	USD
CY2017Q4	kos	Accrued Exploration Development And Production Costs Current AccruedExplorationDevelopmentAndProductionCostsCurrent	144717000	USD
CY2018Q3	kos	Accrued Exploration Development And Production Costs Current AccruedExplorationDevelopmentAndProductionCostsCurrent	101767000	USD
CY2017Q4	kos	Accrued General And Administrative Expenses Current AccruedGeneralAndAdministrativeExpensesCurrent	31124000	USD
CY2018Q3	kos	Accrued General And Administrative Expenses Current AccruedGeneralAndAdministrativeExpensesCurrent	27902000	USD
CY2018Q3	kos	Arbitration Settlement Amount Awarded From Other Party ArbitrationSettlementAmountAwardedFromOtherParty	12900000	USD
CY2017Q4	kos	Capitalizedexploratorywellcostsgreaterthanorequaltothreeyearsandlessthanfouryears Capitalizedexploratorywellcostsgreaterthanorequaltothreeyearsandlessthanfouryears	51702000	USD
CY2018Q3	kos	Capitalizedexploratorywellcostsgreaterthanorequaltothreeyearsandlessthanfouryears Capitalizedexploratorywellcostsgreaterthanorequaltothreeyearsandlessthanfouryears	68407000	USD
	kos	Cash Settlements On Commodity Derivatives CashSettlementsOnCommodityDerivatives	36400000	USD
	kos	Cash Settlements On Commodity Derivatives CashSettlementsOnCommodityDerivatives	-107300000	USD
	kos	Cash Settlements On Derivatives CashSettlementsOnDerivatives	25275000	USD
	kos	Cash Settlements On Derivatives CashSettlementsOnDerivatives	-102705000	USD
	kos	Contribution To Equity Method Investment ContributionToEquityMethodInvestment	133893000	USD
	kos	Contribution To Equity Method Investment ContributionToEquityMethodInvestment	0	USD
CY2017Q4	kos	Debt Instrument Unamortized Issuance Costs And Discounts DebtInstrumentUnamortizedIssuanceCostsAndDiscounts	42203000	USD
CY2018Q3	kos	Debt Instrument Unamortized Issuance Costs And Discounts DebtInstrumentUnamortizedIssuanceCostsAndDiscounts	55466000	USD
CY2017Q3	kos	Deferred Interest DeferredInterest	662000	USD
	kos	Deferred Interest DeferredInterest	1610000	USD
CY2018Q3	kos	Deferred Interest DeferredInterest	-194000	USD
	kos	Deferred Interest DeferredInterest	-1284000	USD
CY2017Q4	kos	Derivative Liability Settled Current DerivativeLiabilitySettledCurrent	825000	USD
CY2018Q3	kos	Derivative Liability Settled Current DerivativeLiabilitySettledCurrent	21704000	USD
CY2017Q3	kos	Disputed Partner Charges And Related Expenses DisputedPartnerChargesAndRelatedExpenses	821000	USD
	kos	Disputed Partner Charges And Related Expenses DisputedPartnerChargesAndRelatedExpenses	3260000	USD
CY2018Q3	kos	Disputed Partner Charges And Related Expenses DisputedPartnerChargesAndRelatedExpenses	-12682000	USD
	kos	Disputed Partner Charges And Related Expenses DisputedPartnerChargesAndRelatedExpenses	-9721000	USD
CY2017Q3	kos	Facilities Insurance Modifications Expense Income FacilitiesInsuranceModificationsExpenseIncome	-3906000	USD
	kos	Facilities Insurance Modifications Expense Income FacilitiesInsuranceModificationsExpenseIncome	-1334000	USD
CY2018Q3	kos	Facilities Insurance Modifications Expense Income FacilitiesInsuranceModificationsExpenseIncome	12334000	USD
	kos	Facilities Insurance Modifications Expense Income FacilitiesInsuranceModificationsExpenseIncome	21812000	USD
CY2017Q3	kos	Gain Loss On Commodity Derivative Instruments Net Pretax GainLossOnCommodityDerivativeInstrumentsNetPretax	-26864000	USD
	kos	Gain Loss On Commodity Derivative Instruments Net Pretax GainLossOnCommodityDerivativeInstrumentsNetPretax	36404000	USD
CY2018Q3	kos	Gain Loss On Commodity Derivative Instruments Net Pretax GainLossOnCommodityDerivativeInstrumentsNetPretax	-57357000	USD
	kos	Gain Loss On Commodity Derivative Instruments Net Pretax GainLossOnCommodityDerivativeInstrumentsNetPretax	-236107000	USD
CY2017Q3	kos	Gain Loss On Insurance Settlements GainLossOnInsuranceSettlements	0	USD
	kos	Gain Loss On Insurance Settlements GainLossOnInsuranceSettlements	461000	USD
CY2018Q3	kos	Gain Loss On Insurance Settlements GainLossOnInsuranceSettlements	0	USD
	kos	Gain Loss On Insurance Settlements GainLossOnInsuranceSettlements	0	USD
CY2017Q3	kos	Interest And Other Financing Costs Other Net InterestAndOtherFinancingCostsOtherNet	1612000	USD
	kos	Interest And Other Financing Costs Other Net InterestAndOtherFinancingCostsOtherNet	4515000	USD
CY2018Q3	kos	Interest And Other Financing Costs Other Net InterestAndOtherFinancingCostsOtherNet	1697000	USD
	kos	Interest And Other Financing Costs Other Net InterestAndOtherFinancingCostsOtherNet	4671000	USD
CY2017Q3	kos	Interest Expense Income Net InterestExpenseIncomeNet	18478000	USD
	kos	Interest Expense Income Net InterestExpenseIncomeNet	54729000	USD
CY2018Q3	kos	Interest Expense Income Net InterestExpenseIncomeNet	23549000	USD
	kos	Interest Expense Income Net InterestExpenseIncomeNet	68113000	USD
	kos	Payments For Repurchase Of Common Stock Used To Cover Employee Taxes PaymentsForRepurchaseOfCommonStockUsedToCoverEmployeeTaxes	2116000	USD
	kos	Payments For Repurchase Of Common Stock Used To Cover Employee Taxes PaymentsForRepurchaseOfCommonStockUsedToCoverEmployeeTaxes	17695000	USD
	kos	Repurchase Of Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Used To Cover Employee Taxes RepurchaseOfShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodUsedToCoverEmployeeTaxes	17695000	USD
CY2017Q3	kos	Revenue And Other Income RevenueAndOtherIncome	151242000	USD
	kos	Revenue And Other Income RevenueAndOtherIncome	449732000	USD
CY2018Q3	kos	Revenue And Other Income RevenueAndOtherIncome	250219000	USD
	kos	Revenue And Other Income RevenueAndOtherIncome	592869000	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	141787000	USD
CY2018Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	153922000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	0	USD
CY2018Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	131546000	USD
CY2017Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	17423000	USD
CY2018Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	7618000	USD
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	219412000	USD
CY2018Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	262310000	USD
CY2017Q4	us-gaap	Accumulated Amortization Of Noncurrent Deferred Finance Costs AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts	13951000	USD
CY2018Q3	us-gaap	Accumulated Amortization Of Noncurrent Deferred Finance Costs AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts	11411000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2014525000	USD
CY2018Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2331969000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	27128000	USD
CY2017Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2551000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	7653000	USD
CY2018Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2346000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	7069000	USD
CY2017Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	12900000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	12900000	shares
CY2018Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	13100000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	14500000	shares
CY2017Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	0	USD
CY2018Q3	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	11161000	USD
CY2017Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	66595000	USD
CY2018Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	150200000	USD
CY2017Q4	us-gaap	Assets Assets	3192603000	USD
CY2018Q3	us-gaap	Assets Assets	4329464000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	533602000	USD
CY2018Q3	us-gaap	Assets Current AssetsCurrent	640779000	USD
CY2017Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities	0	USD
CY2018Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities	80783000	USD
CY2017Q4	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	1427054000	USD
CY2018Q3	us-gaap	Capitalized Costs Support Equipment And Facilities CapitalizedCostsSupportEquipmentAndFacilities	1450907000	USD
	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	7658000	USD
	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	52498000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	410113000	USD
CY2018Q3	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	391699000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	67159000	USD
CY2018Q3	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	26426000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	233412000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	192646000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	273195000	USD
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	235208000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	304986000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	207495000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-37987000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-97491000	USD
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2018Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2000000000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	398599457	shares
CY2018Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	442856360	shares
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	3986000	USD
CY2018Q3	us-gaap	Common Stock Value CommonStockValue	4429000	USD
CY2017Q3	us-gaap	Costs And Expenses CostsAndExpenses	216162000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	506044000	USD
CY2018Q3	us-gaap	Costs And Expenses CostsAndExpenses	364912000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	930754000	USD
CY2017Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1325000000	USD
CY2018Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2150000000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	2510000	USD
CY2018Q3	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	9582000	USD
CY2017Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	22517000	USD
CY2018Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	31890000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	32820000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-84095000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	476548000	USD
CY2018Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	401826000	USD
CY2017Q3	us-gaap	Depletion Of Oil And Gas Properties DepletionOfOilAndGasProperties	70900000	USD
	us-gaap	Depletion Of Oil And Gas Properties DepletionOfOilAndGasProperties	173300000	USD
CY2018Q3	us-gaap	Depletion Of Oil And Gas Properties DepletionOfOilAndGasProperties	76800000	USD
	us-gaap	Depletion Of Oil And Gas Properties DepletionOfOilAndGasProperties	199700000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	188563000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	215676000	USD
CY2017Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	1682000	USD
CY2018Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	41466000	USD
CY2017Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	39000	USD
CY2018Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	14486000	USD
CY2017Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-33021000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	25924000	USD
CY2018Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-54267000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-232057000	USD
CY2017Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	67531000	USD
CY2018Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	212217000	USD
CY2017Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	30209000	USD
CY2018Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	110245000	USD
CY2017Q3	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2018Q3	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2017Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	780000	USD
CY2018Q3	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	20834000	USD
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.16
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.26
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.31
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.70
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.16
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.26
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.31
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.70
CY2017Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.02
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.79
CY2018Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.10
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.17
CY2017Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	8400000	USD
CY2018Q3	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	3200000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	236514000	USD
CY2018Q3	us-gaap	Equity Method Investments EquityMethodInvestments	88652000	USD
CY2017Q3	us-gaap	Exploration Expense ExplorationExpense	36983000	USD
	us-gaap	Exploration Expense ExplorationExpense	162679000	USD
CY2018Q3	us-gaap	Exploration Expense ExplorationExpense	148238000	USD
	us-gaap	Exploration Expense ExplorationExpense	246912000	USD
CY2017Q3	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
CY2018Q3	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	7666000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	7666000	USD
CY2017Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-59318000	USD
CY2017Q3	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
CY2018Q3	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-268000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-4324000	USD
CY2017Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	20029000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	50555000	USD
CY2018Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	25963000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	65343000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-64920000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-56312000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-114693000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-337885000	USD
CY2017Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4804000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-11230000	USD
CY2018Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	24841000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	59637000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-11230000	USD
	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-5235000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1515000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44401000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11364000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-58329000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	27199000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	25601000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-120325000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-15178000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	41651000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-73569000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-58000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3978000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19327000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9732000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-3232000	USD
CY2018Q3	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
CY2017Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	8563000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	25498000	USD
CY2018Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	7097000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	21209000	USD
CY2017Q3	us-gaap	Interest Costs Incurred InterestCostsIncurred	22961000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	68934000	USD
CY2018Q3	us-gaap	Interest Costs Incurred InterestCostsIncurred	27317000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	77121000	USD
	us-gaap	Interest Paid Net InterestPaidNet	48694000	USD
	us-gaap	Interest Paid Net InterestPaidNet	86981000	USD
CY2018Q3	us-gaap	Inventory Net InventoryNet	90003000	USD
CY2017Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	63500000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	20457000	USD
CY2018Q3	us-gaap	Interest Payable Current InterestPayableCurrent	7430000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	71861000	USD
CY2018Q3	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	86800000	USD
CY2017Q3	us-gaap	Inventory Write Down InventoryWriteDown	-500000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	47000	USD
CY2018Q3	us-gaap	Inventory Write Down InventoryWriteDown	-2000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	-26000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3192603000	USD
CY2018Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4329464000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	428730000	USD
CY2018Q3	us-gaap	Liabilities Current LiabilitiesCurrent	628449000	USD
CY2017Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	1866761000	USD
CY2018Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2766082000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	1282797000	USD
CY2018Q3	us-gaap	Long Term Debt LongTermDebt	2094534000	USD
CY2018Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	875300000	USD
CY2018Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	589100000	USD
CY2018Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	685600000	USD
CY2018Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2018Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2018Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	0	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1282797000	USD
CY2018Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2094534000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-252116000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	770560000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	119717000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-958298000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	94412000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	90247000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	-63405000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-100713000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-126057000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-279556000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-63405000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-100713000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-126057000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-279556000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-63405000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-100713000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-126057000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-279556000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2017Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	134565000	USD
CY2018Q3	us-gaap	Oil And Gas Joint Interest Billing Receivables Current OilAndGasJointInterestBillingReceivablesCurrent	84209000	USD
CY2017Q4	us-gaap	Oil And Gas Joint Interest Billing Receivables Noncurrent OilAndGasJointInterestBillingReceivablesNoncurrent	34941000	USD
CY2018Q3	us-gaap	Oil And Gas Joint Interest Billing Receivables Noncurrent OilAndGasJointInterestBillingReceivablesNoncurrent	21861000	USD
CY2017Q4	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion And Amortization OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization	1234806000	USD
CY2018Q3	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion And Amortization OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAndAmortization	1434489000	USD
CY2017Q4	us-gaap	Oil And Gas Property Successful Effort Method Gross OilAndGasPropertySuccessfulEffortMethodGross	3545779000	USD
CY2018Q3	us-gaap	Oil And Gas Property Successful Effort Method Gross OilAndGasPropertySuccessfulEffortMethodGross	4933344000	USD
CY2017Q4	us-gaap	Oil And Gas Property Successful Effort Method Net OilAndGasPropertySuccessfulEffortMethodNet	2310973000	USD
CY2018Q3	us-gaap	Oil And Gas Property Successful Effort Method Net OilAndGasPropertySuccessfulEffortMethodNet	3498855000	USD
CY2017Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	39187000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	80677000	USD
CY2018Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	55078000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	151661000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	37971000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3326000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3276000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4173000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2775000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	22958000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Remainder Of Fiscal Year OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear	1463000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1596000	USD
CY2018Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	488000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	29458000	USD
CY2018Q3	us-gaap	Other Assets OtherAssets	3204000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	10612000	USD
CY2018Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	9277000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3412000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1237000	USD
CY2017Q3	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	88000	USD
	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	-157000	USD
CY2018Q3	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	123000	USD
	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	-1583000	USD
CY2017Q3	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	745000	USD
	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	2485000	USD
CY2018Q3	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	788000	USD
	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	2579000	USD
CY2017Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-233000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3003000	USD
CY2018Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	12807000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	8164000	USD
CY2017Q3	us-gaap	Other Operating Income OtherOperatingIncome	2000	USD
	us-gaap	Other Operating Income OtherOperatingIncome	58697000	USD
CY2018Q3	us-gaap	Other Operating Income OtherOperatingIncome	-280000	USD
	us-gaap	Other Operating Income OtherOperatingIncome	-17000	USD
CY2017Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	25616000	USD
CY2018Q3	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	15750000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	36745000	USD
	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	0	USD
	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	961764000	USD
	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	100712000	USD
	us-gaap	Payments To Acquire Oil And Gas Property And Equipment PaymentsToAcquireOilAndGasPropertyAndEquipment	149305000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	1639000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	3560000	USD
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2018Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	9306000	USD
CY2018Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	58949000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	142628000	USD
	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	58700000	USD
	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1000000000	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	222068000	USD
	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	13703000	USD
CY2017Q4	us-gaap	Projects That Have Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	5	project
CY2018Q3	us-gaap	Projects That Have Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	3	project
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2317828000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3509537000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	39405000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	46513000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	32550000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	35831000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	6855000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	10682000	USD
CY2017Q4	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	1653616000	USD
CY2018Q3	us-gaap	Proved Oil And Gas Property Successful Effort Method ProvedOilAndGasPropertySuccessfulEffortMethod	2749163000	USD
	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	0	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	250000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	175000000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	56380000	USD
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	5376000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	15194000	USD
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	9473000	USD
CY2017Q3	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	73490000	USD
	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	180909000	USD
CY2018Q3	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	80041000	USD
	us-gaap	Results Of Operations Depreciation Depletion Amortization And Accretion ResultsOfOperationsDepreciationDepletionAmortizationAndAccretion	208607000	USD
	us-gaap	Results Of Operations Dry Hole Costs ResultsOfOperationsDryHoleCosts	24515000	USD
	us-gaap	Results Of Operations Dry Hole Costs ResultsOfOperationsDryHoleCosts	114948000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1073202000	USD
CY2018Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1352758000	USD
CY2017Q3	us-gaap	Revenues Revenues	151240000	USD
	us-gaap	Revenues Revenues	391035000	USD
CY2018Q3	us-gaap	Revenues Revenues	242833000	USD
	us-gaap	Revenues Revenues	585220000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	29945000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	25975000	USD
	us-gaap	Stock Issued1 StockIssued1	0	USD
	us-gaap	Stock Issued1 StockIssued1	307944000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	307944000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	897112000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	934933000	USD
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	9188819	shares
CY2018Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	9263269	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	48197000	USD
CY2018Q3	us-gaap	Treasury Stock Value TreasuryStockValue	48707000	USD
CY2017Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2018Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2017Q4	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	465109000	USD
CY2018Q3	us-gaap	Unproved Oil And Gas Property Successful Effort Method UnprovedOilAndGasPropertySuccessfulEffortMethod	733274000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	25924000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-232057000	USD
CY2018Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	389058000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	388114000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	404536000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	399026000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	389058000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	388114000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	404536000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	399026000	shares
	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Organization</font></div><div style="line-height:120%;text-indent:84px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Kosmos Energy Ltd. was incorporated pursuant to the laws of Bermuda in January 2011 to become a holding company for Kosmos Energy Holdings. Kosmos Energy Holdings is a privately held Cayman Islands company that was formed in March 2004. As a holding company, Kosmos Energy Ltd.’s corporate management operations are conducted through a wholly owned subsidiary, Kosmos Energy, LLC. The terms “Kosmos,” the “Company,” “we,” “us,” “our,” “ours,” and similar terms refer to Kosmos Energy Ltd. and its wholly owned subsidiaries, unless the context indicates otherwise.</font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Kosmos is </font><font style="font-family:inherit;font-size:10pt;">a full-cycle deepwater independent oil and gas exploration and production company focused along the Atlantic Margin. Our key assets include production offshore Ghana, Equatorial Guinea and U.S. Gulf of Mexico, as well as a world-class gas development offshore Mauritania and Senegal. We also maintain a sustainable exploration program balanced between proven basin short-cycle exploration (Equatorial Guinea and U.S. Gulf of Mexico), emerging basins (Mauritania, Senegal and Suriname) and frontier basins (Cote d'Ivoire, Namibia and Sao Tome and Principe). </font><font style="font-family:inherit;font-size:10pt;">Kosmos is listed on the New York Stock Exchange and London Stock Exchange and is traded under the ticker symbol KOS.</font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have </font><font style="font-family:inherit;font-size:10pt;">one</font><font style="font-family:inherit;font-size:10pt;"> reportable segment, which is the exploration and production of oil and natural gas. Substantially all of our long-lived assets and all of our product sales are related to production located offshore Ghana and U.S. Gulf of Mexico. We also have an equity method investment generating revenues with operations offshore Equatorial Guinea.</font></div></div>
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassifications</font></div><div style="line-height:120%;text-align:justify;text-indent:84px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior period amounts have been reclassified to conform with the current presentation. Such reclassifications had no impact on our reported net </font><font style="font-family:inherit;font-size:10pt;">loss</font><font style="font-family:inherit;font-size:10pt;">, current assets, total assets, current liabilities, total liabilities, shareholders’ equity or cash flows. </font></div></div>

Files In Submission

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0001509991-18-000063-index-headers.html	Edgar Link	pending
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kos-20180930.xml	Edgar Link	completed
kos-20180930.xsd	Edgar Link	pending
kos-20180930_cal.xml	Edgar Link	unprocessable
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$KOS
Kosmos Energy Ltd. Stock $kos

2018 Q4 Form 10-Q Financial Statement

#000150999118000063 Filed on November 05, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KOS Kosmos Energy Ltd. Stock $kos

2018 Q4 Form 10-Q Financial Statement

#000150999118000063 Filed on November 05, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KOS
Kosmos Energy Ltd. Stock $kos