2015 Q3 Form 10-K Financial Statement
#000007014516000173 Filed on November 18, 2016
Income Statement
| Concept | 2015 Q3 | 2015 Q2 | 2015 Q1 |
|---|---|---|---|
| Revenue | $301.1M | $339.8M | $596.1M |
| YoY Change | -17.87% | -22.79% | -21.17% |
| Cost Of Revenue | $5.300M | $27.00M | $190.6M |
| YoY Change | -81.6% | -68.82% | -40.95% |
| Gross Profit | $295.8M | $312.8M | $405.5M |
| YoY Change | -12.43% | -11.51% | -6.44% |
| Gross Profit Margin | 98.24% | 92.05% | 68.03% |
| Selling, General & Admin | |||
| YoY Change | |||
| % of Gross Profit | |||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $70.90M | $79.87M | $82.69M |
| YoY Change | -31.76% | -17.48% | -8.1% |
| % of Gross Profit | 23.97% | 25.53% | 20.39% |
| Operating Expenses | $205.3M | $829.0M | $551.8M |
| YoY Change | -12.93% | 164.75% | -4.23% |
| Operating Profit | -$326.7M | -$489.2M | $44.33M |
| YoY Change | -420.31% | -485.17% | -75.38% |
| Interest Expense | -$26.90M | -$22.90M | -$23.90M |
| YoY Change | 33.17% | 0.0% | 0.0% |
| % of Operating Profit | -53.91% | ||
| Other Income/Expense, Net | $3.400M | $2.100M | $1.400M |
| YoY Change | 30.77% | 40.0% | -72.55% |
| Pretax Income | -$350.2M | -$510.0M | $21.81M |
| YoY Change | -514.93% | -582.87% | -86.48% |
| Income Tax | -$162.5M | -$216.9M | $5.136M |
| % Of Pretax Income | 23.55% | ||
| Net Earnings | -$187.7M | -$293.1M | $16.67M |
| YoY Change | -426.83% | -554.33% | -82.49% |
| Net Earnings / Revenue | -62.34% | -86.27% | 2.8% |
| Basic Earnings Per Share | -$2.22 | -$3.47 | $0.20 |
| Diluted Earnings Per Share | -$2.22 | -$3.44 | $0.20 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 84.57M shares | 84.45M shares | 84.32M shares |
| Diluted Shares Outstanding | 85.25M shares | 85.13M shares |
Balance Sheet
| Concept | 2015 Q3 | 2015 Q2 | 2015 Q1 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $113.6M | $310.0M | $69.40M |
| YoY Change | 207.86% | 201.85% | -54.01% |
| Cash & Equivalents | $113.6M | $310.0M | $69.44M |
| Short-Term Investments | |||
| Other Short-Term Assets | $60.67M | $49.45M | $59.59M |
| YoY Change | 10.8% | 0.07% | 8.54% |
| Inventory | $64.70M | $47.80M | $39.00M |
| Prepaid Expenses | |||
| Receivables | $105.0M | $135.4M | $207.7M |
| Other Receivables | $0.00 | $0.00 | $0.00 |
| Total Short-Term Assets | $375.8M | $611.5M | $486.9M |
| YoY Change | -0.41% | 30.19% | -22.33% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $5.332B | $5.482B | $5.897B |
| YoY Change | -7.16% | -1.01% | 9.93% |
| Goodwill | $5.476M | $5.476M | $5.476M |
| YoY Change | 0.0% | 0.0% | 0.0% |
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $93.00M | $89.00M | $88.20M |
| YoY Change | 7.14% | 1.25% | 2.8% |
| Other Assets | $167.0K | $172.0K | $178.0K |
| YoY Change | -87.68% | -72.83% | -75.88% |
| Total Long-Term Assets | $857.2M | $796.5M | $844.6M |
| YoY Change | 41.08% | 37.04% | 46.51% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $375.8M | $611.5M | $486.9M |
| Total Long-Term Assets | $857.2M | $796.5M | $844.6M |
| Total Assets | $6.565B | $6.890B | $7.228B |
| YoY Change | -1.84% | 4.57% | 10.06% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $180.4M | $137.9M | $168.3M |
| YoY Change | 31.98% | -5.14% | 9.89% |
| Accrued Expenses | $30.70M | $27.49M | $29.23M |
| YoY Change | -5.4% | 31.66% | 15.81% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $0.00 | $0.00 | $157.5M |
| YoY Change | -100.0% | ||
| Long-Term Debt Due | $0.00 | $0.00 | $0.00 |
| YoY Change | |||
| Total Short-Term Liabilities | $446.1M | $419.9M | $644.2M |
| YoY Change | -9.06% | -1.84% | 25.55% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $2.084B | $2.099B | $1.649B |
| YoY Change | 26.38% | 27.29% | 0.0% |
| Other Long-Term Liabilities | $871.4M | $794.7M | $772.2M |
| YoY Change | 18.87% | 4.43% | 2.56% |
| Total Long-Term Liabilities | $2.009B | $2.123B | $2.336B |
| YoY Change | -8.22% | -2.19% | 10.92% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $446.1M | $419.9M | $644.2M |
| Total Long-Term Liabilities | $2.009B | $2.123B | $2.336B |
| Total Liabilities | $2.455B | $2.543B | $2.980B |
| YoY Change | -8.37% | -2.13% | 13.79% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $1.103B | $1.324B | $1.651B |
| YoY Change | -31.66% | -16.67% | 6.01% |
| Common Stock | $84.59M | $84.53M | $84.39M |
| YoY Change | 0.52% | 0.53% | 0.48% |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | |||
| YoY Change | |||
| Treasury Stock Shares | |||
| Shareholders Equity | $2.025B | $2.247B | $2.599B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $6.565B | $6.890B | $7.228B |
| YoY Change | -2.42% | 4.57% | 10.06% |
Cashflow Statement
| Concept | 2015 Q3 | 2015 Q2 | 2015 Q1 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | -$187.7M | -$293.1M | $16.67M |
| YoY Change | -426.83% | -554.33% | -82.49% |
| Depreciation, Depletion And Amortization | $70.90M | $79.87M | $82.69M |
| YoY Change | -31.76% | -17.48% | -8.1% |
| Cash From Operating Activities | $141.0M | $205.1M | $318.4M |
| YoY Change | -23.29% | -7.78% | -2.48% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$299.2M | -$225.7M | -$248.4M |
| YoY Change | -1.9% | -6.74% | 44.0% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | -$5.500M | $200.0K | -$100.0K |
| YoY Change | -523.08% | -200.0% | -107.69% |
| Cash From Investing Activities | -$304.8M | -$225.4M | -$248.4M |
| YoY Change | 0.36% | -6.94% | 45.09% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | |||
| YoY Change | |||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | -32.60M | 260.8M | -44.40M |
| YoY Change | -160.26% | -1024.82% | 56.34% |
| NET CHANGE | |||
| Cash From Operating Activities | 141.0M | 205.1M | 318.4M |
| Cash From Investing Activities | -304.8M | -225.4M | -248.4M |
| Cash From Financing Activities | -32.60M | 260.8M | -44.40M |
| Net Change In Cash | -196.4M | 240.5M | 25.60M |
| YoY Change | 198.48% | -601.04% | -79.83% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $141.0M | $205.1M | $318.4M |
| Capital Expenditures | -$299.2M | -$225.7M | -$248.4M |
| Free Cash Flow | $440.2M | $430.8M | $566.8M |
| YoY Change | -9.94% | -7.24% | 13.59% |
Facts In Submission
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0.0665 | |
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0.0668 | |
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0.0710 | |
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Estimated Gross Other Post Retirement Benefit Payments Rate Of Increase For Pre Age Sixty Five Participants
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0.0693 | |
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0.0575 | |
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Fair Value Liabilities Measured On Recurring Basis Total
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10076000 | USD |
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Fair Value Liabilities Measured On Recurring Basis Total
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Full Cost Ceiling Test Discount Factor
FullCostCeilingTestDiscountFactor
|
0.10 | |
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Impairmentof Oiland Gas Producing Properties
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0 | USD |
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Impairmentof Oiland Gas Producing Properties
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Impairmentof Oiland Gas Producing Properties
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Impairmentof Oiland Gas Producing Properties
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Impairmentof Oiland Gas Producing Properties
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Impairmentof Oiland Gas Producing Properties
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Impairmentof Oiland Gas Producing Properties
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339800000 | USD |
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240900000 | USD |
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Impairmentof Oiland Gas Producing Properties After Tax
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252600000 | USD |
| CY2016Q1 | nfg |
Impairmentof Oiland Gas Producing Properties After Tax
ImpairmentofOilandGasProducingPropertiesAfterTax
|
230500000 | USD |
| CY2016Q2 | nfg |
Impairmentof Oiland Gas Producing Properties After Tax
ImpairmentofOilandGasProducingPropertiesAfterTax
|
47900000 | USD |
| CY2016Q3 | nfg |
Impairmentof Oiland Gas Producing Properties After Tax
ImpairmentofOilandGasProducingPropertiesAfterTax
|
19000000 | USD |
| CY2014 | nfg |
Income From Continuing Operations Before Income Taxes
IncomeFromContinuingOperationsBeforeIncomeTaxes
|
488593000 | USD |
| CY2015 | nfg |
Income From Continuing Operations Before Income Taxes
IncomeFromContinuingOperationsBeforeIncomeTaxes
|
-698977000 | USD |
| CY2016 | nfg |
Income From Continuing Operations Before Income Taxes
IncomeFromContinuingOperationsBeforeIncomeTaxes
|
-523855000 | USD |
| CY2014 | nfg |
Income Tax Expense Benefit Including Deferred Investment Tax Credit
IncomeTaxExpenseBenefitIncludingDeferredInvestmentTaxCredit
|
189180000 | USD |
| CY2015 | nfg |
Income Tax Expense Benefit Including Deferred Investment Tax Credit
IncomeTaxExpenseBenefitIncludingDeferredInvestmentTaxCredit
|
-319550000 | USD |
| CY2016 | nfg |
Income Tax Expense Benefit Including Deferred Investment Tax Credit
IncomeTaxExpenseBenefitIncludingDeferredInvestmentTaxCredit
|
-232897000 | USD |
| CY2015Q3 | nfg |
Interest Payable On Long Term Debt
InterestPayableOnLongTermDebt
|
36200000 | USD |
| CY2016Q3 | nfg |
Interest Payable On Long Term Debt
InterestPayableOnLongTermDebt
|
34900000 | USD |
| CY2016 | nfg |
Lineof Credit Facility Term Start Date
LineofCreditFacilityTermStartDate
|
2017-10-01 | |
| CY2015Q3 | nfg |
Longterm Debt Noncurrent Netof Unamortized Discountand Debt Issuance Costs
LongtermDebtNoncurrentNetofUnamortizedDiscountandDebtIssuanceCosts
|
2084009000 | USD |
| CY2016Q3 | nfg |
Longterm Debt Noncurrent Netof Unamortized Discountand Debt Issuance Costs
LongtermDebtNoncurrentNetofUnamortizedDiscountandDebtIssuanceCosts
|
2086252000 | USD |
| CY2016 | nfg |
Marcellus Shale Wells Developed
MarcellusShaleWellsDeveloped
|
31 | |
| CY2016 | nfg |
Number Of Registered Shareholders Of Common Stock
NumberOfRegisteredShareholdersOfCommonStock
|
11751 | |
| CY2016 | nfg |
Offsetting Gain Loss On Hedged Item Attributable To Hedged Risk
OffsettingGainLossOnHedgedItemAttributableToHedgedRisk
|
-12303000 | USD |
| CY2016Q3 | nfg |
Operating Loss Carryforwards Annual Limitations
OperatingLossCarryforwardsAnnualLimitations
|
4500000 | USD |
| CY2016Q3 | nfg |
Operating Loss Carryforwards Excess Tax Deductions Related To Stock Based Compensation
OperatingLossCarryforwardsExcessTaxDeductionsRelatedToStockBasedCompensation
|
85000000 | USD |
| CY2015Q3 | nfg |
Other Current Assets Fair Values Of Firm Commitments
OtherCurrentAssetsFairValuesOfFirmCommitments
|
15775000 | USD |
| CY2016Q3 | nfg |
Other Current Assets Fair Values Of Firm Commitments
OtherCurrentAssetsFairValuesOfFirmCommitments
|
3962000 | USD |
| CY2015Q3 | nfg |
Other Investments Including Csv Life Insurance And Avail For Sale
OtherInvestmentsIncludingCsvLifeInsuranceAndAvailForSale
|
92990000 | USD |
| CY2016Q3 | nfg |
Other Investments Including Csv Life Insurance And Avail For Sale
OtherInvestmentsIncludingCsvLifeInsuranceAndAvailForSale
|
110664000 | USD |
| CY2016 | nfg |
Percent Marcellus Shale Wells Developed
PercentMarcellusShaleWellsDeveloped
|
0.28 | |
| CY2016Q3 | nfg |
Percentage Of Assets Or Earning Power That Are Sold Or Transferred
PercentageOfAssetsOrEarningPowerThatAreSoldOrTransferred
|
0.50 | |
| CY2016 | nfg |
Percentage Of Voting Power To Redeem Rights
PercentageOfVotingPowerToRedeemRights
|
0.75 | |
| CY2016 | nfg |
Percentageof Voting Power
PercentageofVotingPower
|
0.10 | |
| CY2015Q3 | nfg |
Proved Undeveloped Reserves Additions
ProvedUndevelopedReservesAdditions
|
496000000000 | ft3 |
| CY2015 | nfg |
Proved Undeveloped Reserves As Percentage Of Total Proved Reserves
ProvedUndevelopedReservesAsPercentageOfTotalProvedReserves
|
0.35 | |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Additions
ProvedUndevelopedReservesAdditions
|
102000000000 | ft3 |
| CY2014 | nfg |
Proved Undeveloped Reserves As Percentage Of Total Proved Reserves
ProvedUndevelopedReservesAsPercentageOfTotalProvedReserves
|
0.27 | |
| CY2016 | nfg |
Reimbursed Drilling Carry Costsfor Jda Partner
ReimbursedDrillingCarryCostsforJDAPartner
|
36000000 | USD |
| CY2015Q3 | nfg |
Reclassificationof Current Assets
ReclassificationofCurrentAssets
|
137200000 | USD |
| CY2015Q3 | nfg |
Recoverable Future Taxes
RecoverableFutureTaxes
|
168214000 | USD |
| CY2016 | nfg |
Shareholder Rights Plan Expiration Date
ShareholderRightsPlanExpirationDate
|
2018-07-31 | |
| CY2016Q3 | nfg |
Recoverable Future Taxes
RecoverableFutureTaxes
|
177261000 | USD |
| CY2016 | nfg |
Redemption Price For Shareholder Rights Under Shareholder Rights Plan
RedemptionPriceForShareholderRightsUnderShareholderRightsPlan
|
0.005 | |
| CY2015Q3 | nfg |
Taxes Refundable To Customers
TaxesRefundableToCustomers
|
89448000 | USD |
| CY2016Q3 | nfg |
Taxes Refundable To Customers
TaxesRefundableToCustomers
|
93318000 | USD |
| CY2015Q3 | nfg |
Unamortized Debt Expense
UnamortizedDebtExpense
|
2218000 | USD |
| CY2016Q3 | nfg |
Unamortized Debt Expense
UnamortizedDebtExpense
|
1688000 | USD |
| CY2015Q3 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
180388000 | USD |
| CY2016Q3 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
108056000 | USD |
| CY2015Q3 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
20746000 | USD |
| CY2016Q3 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
18382000 | USD |
| CY2016 | nfg |
Proved Undeveloped Reserves As Percentage Of Total Proved Reserves
ProvedUndevelopedReservesAsPercentageOfTotalProvedReserves
|
0.29 | |
| CY2015Q3 | nfg |
Proved Undeveloped Reserves Conversions To Developed Reserves
ProvedUndevelopedReservesConversionsToDevelopedReserves
|
168000000000 | ft3 |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Conversions To Developed Reserves
ProvedUndevelopedReservesConversionsToDevelopedReserves
|
110000000000 | ft3 |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Decrease
ProvedUndevelopedReservesDecrease
|
284000000000 | ft3 |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Downward Revisions
ProvedUndevelopedReservesDownwardRevisions
|
14000000000 | ft3 |
| CY2015Q3 | nfg |
Proved Undeveloped Reserves Increase
ProvedUndevelopedReservesIncrease
|
315000000000 | ft3 |
| CY2012Q3 | nfg |
Proved Undeveloped Reserves Percentage
ProvedUndevelopedReservesPercentage
|
0.33 | |
| CY2013Q3 | nfg |
Proved Undeveloped Reserves Percentage
ProvedUndevelopedReservesPercentage
|
0.39 | |
| CY2014Q3 | nfg |
Proved Undeveloped Reserves Percentage
ProvedUndevelopedReservesPercentage
|
0.51 | |
| CY2015Q3 | nfg |
Proved Undeveloped Reserves Percentage
ProvedUndevelopedReservesPercentage
|
0.33 | |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Percentage
ProvedUndevelopedReservesPercentage
|
0.11 | |
| CY2015Q3 | nfg |
Proved Undeveloped Reserves Removed
ProvedUndevelopedReservesRemoved
|
39000000000 | ft3 |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Removed
ProvedUndevelopedReservesRemoved
|
96000000000 | ft3 |
| CY2016Q3 | nfg |
Proved Undeveloped Reserves Sales
ProvedUndevelopedReservesSales
|
166000000000 | ft3 |
| CY2015Q3 | nfg |
Proved Undeveloped Reserves Upward Revisions
ProvedUndevelopedReservesUpwardRevisions
|
-26000000000 | ft3 |
| CY2014 | nfg |
Results Of Operations Franchise Or Ad Valorem Taxes
ResultsOfOperationsFranchiseOrAdValoremTaxes
|
20765000 | USD |
| CY2015 | nfg |
Results Of Operations Franchise Or Ad Valorem Taxes
ResultsOfOperationsFranchiseOrAdValoremTaxes
|
20167000 | USD |
| CY2016 | nfg |
Results Of Operations Franchise Or Ad Valorem Taxes
ResultsOfOperationsFranchiseOrAdValoremTaxes
|
13794000 | USD |
| CY2014 | nfg |
Resultsof Operations Purchased Emission Allowance Expense
ResultsofOperationsPurchasedEmissionAllowanceExpense
|
0 | USD |
| CY2015 | nfg |
Resultsof Operations Purchased Emission Allowance Expense
ResultsofOperationsPurchasedEmissionAllowanceExpense
|
3089000 | USD |
| CY2016 | nfg |
Resultsof Operations Purchased Emission Allowance Expense
ResultsofOperationsPurchasedEmissionAllowanceExpense
|
700000 | USD |
| CY2015Q3 | nfg |
Reversalof Employee Sharebased Compensation Expense
ReversalofEmployeeSharebasedCompensationExpense
|
8000000 | USD |
| CY2016 | nfg |
Reversalof Employee Sharebased Compensation Expense
ReversalofEmployeeSharebasedCompensationExpense
|
8000000 | USD |
| CY2015Q3 | nfg |
Reversalof Employee Sharebased Compensation Expense After Tax
ReversalofEmployeeSharebasedCompensationExpenseAfterTax
|
4700000 | USD |
| CY2015Q3 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
731000 | USD |
| CY2016Q3 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
383000 | USD |
| CY2015Q3 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
3929428000 | USD |
| CY2016Q3 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
5085099000 | USD |
| CY2014Q3 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-3979000 | USD |
| CY2015Q3 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
93372000 | USD |
| CY2016Q3 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-5640000 | USD |
| CY2014 | us-gaap |
Acquisition Costs
AcquisitionCosts
|
7057000 | USD |
| CY2015 | us-gaap |
Acquisition Costs
AcquisitionCosts
|
0 | USD |
| CY2016 | us-gaap |
Acquisition Costs
AcquisitionCosts
|
0 | USD |
| CY2015Q3 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
744274000 | USD |
| CY2016Q3 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
771164000 | USD |
| CY2014 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
10500000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
2100000 | USD |
| CY2016 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
4800000 | USD |
| CY2015Q3 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
29029000 | USD |
| CY2016Q3 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
21109000 | USD |
| CY2014 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
1007 | shares |
| CY2015 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
709063 | shares |
| CY2016 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
431408 | shares |
| CY2013Q3 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
119511000 | USD |
| CY2014Q3 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
117713000 | USD |
| CY2015Q3 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
156805000 | USD |
| CY2016Q3 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
112330000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
7653000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
7767000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
8300000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
5390000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
4433000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
2719000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
6955000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
6825000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
72215000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-7886000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
33717000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
16721000 | USD |
| CY2015Q3 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
156805000 | USD |
| CY2016Q3 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
112330000 | USD |
| CY2014Q3 | us-gaap |
Assets
Assets
|
6687717000 | USD |
| CY2015Q3 | us-gaap |
Assets
Assets
|
6564939000 | USD |
| CY2016Q3 | us-gaap |
Assets
Assets
|
5636387000 | USD |
| CY2015Q3 | us-gaap |
Assets Current
AssetsCurrent
|
375801000 | USD |
| CY2016Q3 | us-gaap |
Assets Current
AssetsCurrent
|
413031000 | USD |
| CY2015Q3 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
857243000 | USD |
| CY2016Q3 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
768874000 | USD |
| CY2014 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
136628000 | USD |
| CY2015 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
118959000 | USD |
| CY2016 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
60434000 | USD |
| CY2015Q3 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
4109449000 | USD |
| CY2016Q3 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
3613256000 | USD |
| CY2015Q3 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
2572348000 | USD |
| CY2016Q3 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
3657239000 | USD |
| CY2015Q3 | us-gaap |
Capitalized Costs Asset Retirement Costs
CapitalizedCostsAssetRetirementCosts
|
113300000 | USD |
| CY2016Q3 | us-gaap |
Capitalized Costs Asset Retirement Costs
CapitalizedCostsAssetRetirementCosts
|
63600000 | USD |
| CY2014 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
|
8493000 | USD |
| CY2015 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
|
17544000 | USD |
| CY2016 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
|
58276000 | USD |
| CY2015Q3 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Gross
CapitalizedCostsOilAndGasProducingActivitiesGross
|
4650048000 | USD |
| CY2016Q3 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Gross
CapitalizedCostsOilAndGasProducingActivitiesGross
|
4690214000 | USD |
| CY2015Q3 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
|
2077700000 | USD |
| CY2016Q3 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
|
1032975000 | USD |
| CY2015Q3 | us-gaap |
Capitalized Costs Proved Properties
CapitalizedCostsProvedProperties
|
4473721000 | USD |
| CY2016Q3 | us-gaap |
Capitalized Costs Proved Properties
CapitalizedCostsProvedProperties
|
4554929000 | USD |
| CY2015Q3 | us-gaap |
Capitalized Costs Unproved Properties
CapitalizedCostsUnprovedProperties
|
176327000 | USD |
| CY2016Q3 | us-gaap |
Capitalized Costs Unproved Properties
CapitalizedCostsUnprovedProperties
|
135285000 | USD |
| CY2013Q3 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
64858000 | USD |
| CY2014Q3 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
36886000 | USD |
| CY2015Q3 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
113596000 | USD |
| CY2016Q3 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
129972000 | USD |
| CY2015Q3 | us-gaap |
Cash And Cash Equivalents Fair Value Disclosure
CashAndCashEquivalentsFairValueDisclosure
|
92196000 | USD |
| CY2016Q3 | us-gaap |
Cash And Cash Equivalents Fair Value Disclosure
CashAndCashEquivalentsFairValueDisclosure
|
113407000 | USD |
| CY2014 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-27972000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
76710000 | USD |
| CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
16376000 | USD |
| CY2015Q3 | us-gaap |
Cash Cash Equivalents And Short Term Investments
CashCashEquivalentsAndShortTermInvestments
|
113596000 | USD |
| CY2016Q3 | us-gaap |
Cash Cash Equivalents And Short Term Investments
CashCashEquivalentsAndShortTermInvestments
|
129972000 | USD |
| CY2016 | us-gaap |
Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months
CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
|
83200000 | USD |
| CY2015Q3 | us-gaap |
Cash Surrender Value Of Life Insurance
CashSurrenderValueOfLifeInsurance
|
45300000 | USD |
| CY2016Q3 | us-gaap |
Cash Surrender Value Of Life Insurance
CashSurrenderValueOfLifeInsurance
|
39700000 | USD |
| CY2016Q3 | us-gaap |
Commercial Paper
CommercialPaper
|
500000000 | USD |
| CY2015Q3 | us-gaap |
Commercial Paper At Carrying Value
CommercialPaperAtCarryingValue
|
0 | USD |
| CY2016Q3 | us-gaap |
Commercial Paper At Carrying Value
CommercialPaperAtCarryingValue
|
0 | USD |
| CY2015Q3 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
0 | USD |
| CY2016Q3 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
0 | USD |
| CY2014 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.52 | |
| CY2015 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.56 | |
| CY2016 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.60 | |
| CY2014Q4 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.385 | |
| CY2015Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.385 | |
| CY2015Q2 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.395 | |
| CY2015Q3 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.395 | |
| CY2015Q4 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.395 | |
| CY2016Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.395 | |
| CY2016Q2 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.405 | |
| CY2016Q3 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.405 | |
| CY2015Q3 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
| CY2016Q3 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
| CY2015Q3 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
200000000 | shares |
| CY2016Q3 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
200000000 | shares |
| CY2015Q3 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
84594383 | shares |
| CY2016Q3 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
85118886 | shares |
| CY2015Q3 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
84594383 | shares |
| CY2016Q3 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
85118886 | shares |
| CY2015Q3 | us-gaap |
Common Stock Value
CommonStockValue
|
84594000 | USD |
| CY2016Q3 | us-gaap |
Common Stock Value
CommonStockValue
|
85119000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
314668000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-282076000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-389970000 | USD |
| CY2014 | us-gaap |
Cost Of Purchased Oil And Gas
CostOfPurchasedOilAndGas
|
605838000 | USD |
| CY2015 | us-gaap |
Cost Of Purchased Oil And Gas
CostOfPurchasedOilAndGas
|
349984000 | USD |
| CY2016 | us-gaap |
Cost Of Purchased Oil And Gas
CostOfPurchasedOilAndGas
|
147982000 | USD |
| CY2014 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties
CostsIncurredAcquisitionOfOilAndGasProperties
|
583165000 | USD |
| CY2015 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties
CostsIncurredAcquisitionOfOilAndGasProperties
|
567187000 | USD |
| CY2016 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties
CostsIncurredAcquisitionOfOilAndGasProperties
|
200801000 | USD |
| CY2014 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
18213000 | USD |
| CY2015 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
1767000 | USD |
| CY2016 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
1342000 | USD |
| CY2014 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
7884000 | USD |
| CY2015 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
19998000 | USD |
| CY2016 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
2165000 | USD |
| CY2014 | us-gaap |
Costs Incurred Asset Retirement Obligation Incurred
CostsIncurredAssetRetirementObligationIncurred
|
-4946000 | USD |
| CY2015 | us-gaap |
Costs Incurred Asset Retirement Obligation Incurred
CostsIncurredAssetRetirementObligationIncurred
|
37595000 | USD |
| CY2016 | us-gaap |
Costs Incurred Asset Retirement Obligation Incurred
CostsIncurredAssetRetirementObligationIncurred
|
-49653000 | USD |
| CY2014 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
490164000 | USD |
| CY2015 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
454605000 | USD |
| CY2016 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
219386000 | USD |
| CY2014 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
71850000 | USD |
| CY2015 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
53222000 | USD |
| CY2016 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
27561000 | USD |
| CY2016Q3 | us-gaap |
Credit Risk Derivative Assets At Fair Value
CreditRiskDerivativeAssetsAtFairValue
|
73000000 | USD |
| CY2014 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
34579000 | USD |
| CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
25064000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-6658000 | USD |
| CY2014 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
12620000 | USD |
| CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
13387000 | USD |
| CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
20903000 | USD |
| CY2015Q3 | us-gaap |
Customer Advances Current
CustomerAdvancesCurrent
|
16236000 | USD |
| CY2016Q3 | us-gaap |
Customer Advances Current
CustomerAdvancesCurrent
|
14762000 | USD |
| CY2015Q3 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
16490000 | USD |
| CY2016Q3 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
16019000 | USD |
| CY2015Q3 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
2084009000 | USD |
| CY2016Q3 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
2086252000 | USD |
| CY2015Q3 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
2129558000 | USD |
| CY2016Q3 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
2255562000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
110408000 | USD |
| CY2015Q3 | us-gaap |
Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit After Tax
DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax
|
1500000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit After Tax
DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax
|
1300000 | USD |
| CY2015Q3 | us-gaap |
Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
|
24459000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Assets For Plan Benefits Noncurrent
DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
|
17649000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
|
57900000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
|
2500000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
70700000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
3000000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter
DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
|
333900000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months
DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
|
62400000 | USD |
| CY2016Q3 | us-gaap |
Debt Instrument Unused Borrowing Capacity Amount
DebtInstrumentUnusedBorrowingCapacityAmount
|
1080000000 | USD |
| CY2014 | us-gaap |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
691000 | USD |
| CY2015 | us-gaap |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
1000 | USD |
| CY2016 | us-gaap |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
95849000 | USD |
| CY2015Q3 | us-gaap |
Deferred Costs
DeferredCosts
|
15129000 | USD |
| CY2016Q3 | us-gaap |
Deferred Costs
DeferredCosts
|
20978000 | USD |
| CY2014 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
116143000 | USD |
| CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-244336000 | USD |
| CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-164818000 | USD |
| CY2014 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
142415000 | USD |
| CY2015 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
-357587000 | USD |
| CY2016 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
-246794000 | USD |
| CY2014 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
26272000 | USD |
| CY2015 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-113251000 | USD |
| CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-81976000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Assets Capital Loss Carryforwards
DeferredTaxAssetsCapitalLossCarryforwards
|
185681000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Assets Capital Loss Carryforwards
DeferredTaxAssetsCapitalLossCarryforwards
|
194875000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
-1137962000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
-823795000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
464540000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
482844000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
92140000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
1602502000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
1306639000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
118522000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
50179000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
1137962000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
823795000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
51230000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
55457000 | USD |
| CY2015Q3 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
1291718000 | USD |
| CY2016Q3 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
1049100000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Five
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
|
65600000 | USD |
| CY2014 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
383781000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Four
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
|
64800000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Three
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
|
64300000 | USD |
| CY2016Q3 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Two
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
|
63600000 | USD |
| CY2015 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
336158000 | USD |
| CY2016 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
249417000 | USD |
| CY2016Q3 | us-gaap |
Derivative Collateral Obligation To Return Cash
DerivativeCollateralObligationToReturnCash
|
0 | USD |
| CY2015Q3 | us-gaap |
Derivative Instruments And Hedges Liabilities
DerivativeInstrumentsAndHedgesLiabilities
|
10076000 | USD |
| CY2016Q3 | us-gaap |
Derivative Instruments And Hedges Liabilities
DerivativeInstrumentsAndHedgesLiabilities
|
1560000 | USD |
| CY2015Q3 | us-gaap |
Derivative Instruments And Hedges Noncurrent
DerivativeInstrumentsAndHedgesNoncurrent
|
270363000 | USD |
| CY2016Q3 | us-gaap |
Derivative Instruments And Hedges Noncurrent
DerivativeInstrumentsAndHedgesNoncurrent
|
113804000 | USD |
| CY2015 | us-gaap |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
|
184953000 | USD |
| CY2016 | us-gaap |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
|
220919000 | USD |
| CY2015 | us-gaap |
Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net
DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet
|
3563000 | USD |
| CY2016 | us-gaap |
Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net
DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet
|
392000 | USD |
| CY2014 | us-gaap |
Development Costs
DevelopmentCosts
|
1436000 | USD |
| CY2015 | us-gaap |
Development Costs
DevelopmentCosts
|
7911000 | USD |
| CY2016 | us-gaap |
Development Costs
DevelopmentCosts
|
40597000 | USD |
| CY2014 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
127669000 | USD |
| CY2015 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
131734000 | USD |
| CY2016 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
135881000 | USD |
| CY2015Q3 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
33415000 | USD |
| CY2016Q3 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
34473000 | USD |
| CY2014 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
3.57 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.01 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.20 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-3.47 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.22 | |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-4.50 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.23 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.74 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.10 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.44 | |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-3.43 | |
| CY2014 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
3.52 | |
| CY2014Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.00 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.20 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-3.44 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.22 | |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-4.50 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.23 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.74 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.10 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.44 | |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-3.43 | |
| CY2014 | us-gaap |
Effect On Future Cash Flows Amount
EffectOnFutureCashFlowsAmount
|
-33600000 | USD |
| CY2015 | us-gaap |
Effect On Future Cash Flows Amount
EffectOnFutureCashFlowsAmount
|
194500000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
100000 | USD |
| CY2016 | us-gaap |
Effect On Future Cash Flows Amount
EffectOnFutureCashFlowsAmount
|
215300000 | USD |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
100000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
100000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
4300000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
900000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
1900000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
3100000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
7700000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
1600000 | USD |
| CY2015Q3 | us-gaap |
Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
|
34252000 | USD |
| CY2016Q3 | us-gaap |
Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
|
34332000 | USD |
| CY2014 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
4641000 | USD |
| CY2015 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
9064000 | USD |
| CY2016 | us-gaap |
Excess Tax Benefit From Share Based Compensation Financing Activities
ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
|
1868000 | USD |
| CY2014 | us-gaap |
Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
|
4641000 | USD |
| CY2015 | us-gaap |
Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
|
9064000 | USD |
| CY2016 | us-gaap |
Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
|
1868000 | USD |
| CY2014 | us-gaap |
Exploration Costs
ExplorationCosts
|
0 | USD |
| CY2015 | us-gaap |
Exploration Costs
ExplorationCosts
|
9482000 | USD |
| CY2016 | us-gaap |
Exploration Costs
ExplorationCosts
|
17340000 | USD |
| CY2014 | us-gaap |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
381008000 | USD |
| CY2015 | us-gaap |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
266159000 | USD |
| CY2016 | us-gaap |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
47742000 | USD |
| CY2015Q3 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | USD |
| CY2016Q3 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | USD |
| CY2015 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
|
0 | USD |
| CY2016 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
|
0 | USD |
| CY2014Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
10001545000 | USD |
| CY2015Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
6916775000 | USD |
| CY2016Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
3768463000 | USD |
| CY2014Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
790033000 | USD |
| CY2015Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
761922000 | USD |
| CY2016Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
375152000 | USD |
| CY2014Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
2434370000 | USD |
| CY2015Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
1117433000 | USD |
| CY2016Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
303397000 | USD |
| CY2014Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
3981485000 | USD |
| CY2015Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
2183278000 | USD |
| CY2016Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
1094998000 | USD |
| CY2014Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
2795657000 | USD |
| CY2015Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
2854142000 | USD |
| CY2016Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
1994916000 | USD |
| CY2016Q3 | us-gaap |
Goodwill
Goodwill
|
5476000 | USD |
| CY2016Q3 | us-gaap |
Goodwill
Goodwill
|
5500000 | USD |
| CY2015Q3 | us-gaap |
Goodwill
Goodwill
|
5476000 | USD |
| CY2014Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
1914607000 | USD |
| CY2015Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
860244000 | USD |
| CY2016Q3 | us-gaap |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
452470000 | USD |
| CY2016 | us-gaap |
Gain Loss On Fair Value Hedges Recognized In Earnings
GainLossOnFairValueHedgesRecognizedInEarnings
|
12303000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
-231807000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
489027000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-698563000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-523507000 | USD |
| CY2014 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
189614000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
143752000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-319136000 | USD |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-232549000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation Deductions Other
IncomeTaxReconciliationDeductionsOther
|
7108000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Deductions Other
IncomeTaxReconciliationDeductionsOther
|
9996000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Deductions Other
IncomeTaxReconciliationDeductionsOther
|
9851000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
171008000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-244642000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-183349000 | USD |
| CY2014 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
25280000 | USD |
| CY2015 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
-64912000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
-39697000 | USD |
| CY2014 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
40944000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
18657000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
34240000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accounts Payable Trade
IncreaseDecreaseInAccountsPayableTrade
|
15149000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts Payable Trade
IncreaseDecreaseInAccountsPayableTrade
|
34687000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accounts Payable Trade
IncreaseDecreaseInAccountsPayableTrade
|
-40664000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
6872000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
-7173000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
3453000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Customer Advances
IncreaseDecreaseInCustomerAdvances
|
-2954000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Customer Advances
IncreaseDecreaseInCustomerAdvances
|
-2769000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Customer Advances
IncreaseDecreaseInCustomerAdvances
|
-1474000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Customer Deposits
IncreaseDecreaseInCustomerDeposits
|
-422000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Customer Deposits
IncreaseDecreaseInCustomerDeposits
|
729000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Customer Deposits
IncreaseDecreaseInCustomerDeposits
|
-471000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
-12408000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
0 | USD |
| CY2016 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
2440000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
68731000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
164510000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
545442000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
387739000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-13285000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-3438000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
3532000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
|
1640000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
|
8390000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Margin Deposits Outstanding
IncreaseDecreaseInMarginDepositsOutstanding
|
-9640000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
3630000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
-3150000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Current Assets
IncreaseDecreaseInOtherCurrentAssets
|
-3179000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-18513000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-2696000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-1941000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
6879000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
23173000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-13483000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
22781000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-51638000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
6408000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Regulatory Clause Revenue
IncreaseDecreaseInRegulatoryClauseRevenue
|
20917000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Regulatory Clause Revenue
IncreaseDecreaseInRegulatoryClauseRevenue
|
23033000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Regulatory Clause Revenue
IncreaseDecreaseInRegulatoryClauseRevenue
|
-37241000 | USD |
| CY2014 | us-gaap |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
34705000 | USD |
| CY2015 | us-gaap |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
0 | USD |
| CY2016 | us-gaap |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
0 | USD |
| CY2014 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
0 | USD |
| CY2015 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
151000 | USD |
| CY2016 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
339000 | USD |
| CY2014 | us-gaap |
Interest Expense
InterestExpense
|
94277000 | USD |
| CY2015 | us-gaap |
Interest Expense
InterestExpense
|
99471000 | USD |
| CY2016 | us-gaap |
Interest Expense
InterestExpense
|
121044000 | USD |
| CY2014 | us-gaap |
Interest Expense Long Term Debt
InterestExpenseLongTermDebt
|
90194000 | USD |
| CY2015 | us-gaap |
Interest Expense Long Term Debt
InterestExpenseLongTermDebt
|
95916000 | USD |
| CY2016 | us-gaap |
Interest Expense Long Term Debt
InterestExpenseLongTermDebt
|
117347000 | USD |
| CY2014 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
4083000 | USD |
| CY2015 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
3555000 | USD |
| CY2016 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
3697000 | USD |
| CY2014 | us-gaap |
Interest Income Domestic Deposits
InterestIncomeDomesticDeposits
|
4170000 | USD |
| CY2015 | us-gaap |
Interest Income Domestic Deposits
InterestIncomeDomesticDeposits
|
3922000 | USD |
| CY2016 | us-gaap |
Interest Income Domestic Deposits
InterestIncomeDomesticDeposits
|
4235000 | USD |
| CY2014 | us-gaap |
Interest Paid
InterestPaid
|
91927000 | USD |
| CY2015 | us-gaap |
Interest Paid
InterestPaid
|
90747000 | USD |
| CY2016 | us-gaap |
Interest Paid
InterestPaid
|
119563000 | USD |
| CY2015Q3 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
30414000 | USD |
| CY2016Q3 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
33866000 | USD |
| CY2014 | us-gaap |
Investment Tax Credit
InvestmentTaxCredit
|
-434000 | USD |
| CY2015 | us-gaap |
Investment Tax Credit
InvestmentTaxCredit
|
-414000 | USD |
| CY2016 | us-gaap |
Investment Tax Credit
InvestmentTaxCredit
|
-348000 | USD |
| CY2015Q3 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
6564939000 | USD |
| CY2016Q3 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
5636387000 | USD |
| CY2015Q3 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
446140000 | USD |
| CY2016Q3 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
303737000 | USD |
| CY2015Q3 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
2009350000 | USD |
| CY2016Q3 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
1719394000 | USD |
| CY2016Q3 | us-gaap |
Line Of Credit
LineOfCredit
|
0 | USD |
| CY2015Q3 | us-gaap |
Long Term Debt
LongTermDebt
|
2099000000 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt
LongTermDebt
|
2099000000 | USD |
| CY2015Q3 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
0 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
0 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
1549000000 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
0 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
0 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
0 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
250000000 | USD |
| CY2016Q3 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
300000000 | USD |
| CY2016Q3 | us-gaap |
Loss Contingency Estimate Of Possible Loss
LossContingencyEstimateOfPossibleLoss
|
4500000 | USD |
| CY2015Q3 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
11124000 | USD |
| CY2016Q3 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
1484000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
-28927000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
247920000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
|
-119107000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-908435000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-1024790000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
|
-453496000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
909390000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
853580000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
|
588979000 | USD |
| CY2014 | us-gaap |
Net Income Loss
NetIncomeLoss
|
299413000 | USD |
| CY2014Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
84741000 | USD |
| CY2015Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
16669000 | USD |
| CY2015Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-293134000 | USD |
| CY2015Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-187703000 | USD |
| CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-379427000 | USD |
| CY2015Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-189109000 | USD |
| CY2016Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-147688000 | USD |
| CY2016Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
8286000 | USD |
| CY2016Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
37553000 | USD |
| CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-290958000 | USD |
| CY2014 | us-gaap |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
-38723000 | USD |
| CY2015 | us-gaap |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
-1752843000 | USD |
| CY2016 | us-gaap |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
-1066593000 | USD |
| CY2016 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
5 | |
| CY2014 | us-gaap |
Operating Expenses
OperatingExpenses
|
1543408000 | USD |
| CY2015 | us-gaap |
Operating Expenses
OperatingExpenses
|
2371966000 | USD |
| CY2016 | us-gaap |
Operating Expenses
OperatingExpenses
|
1868934000 | USD |
| CY2014 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
569673000 | USD |
| CY2014Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
160561000 | USD |
| CY2015Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
44331000 | USD |
| CY2015Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-489214000 | USD |
| CY2015Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-326731000 | USD |
| CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-611053000 | USD |
| CY2015Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-305924000 | USD |
| CY2016Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-237000000 | USD |
| CY2016Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
45162000 | USD |
| CY2016Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
81244000 | USD |
| CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-416518000 | USD |
| CY2016Q3 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
13700000 | USD |
| CY2016Q3 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
1500000 | USD |
| CY2016Q3 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
3000000 | USD |
| CY2016Q3 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
4200000 | USD |
| CY2016Q3 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
5800000 | USD |
| CY2016Q3 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
400000 | USD |
| CY2015Q3 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
96557000 | USD |
| CY2016Q3 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
74430000 | USD |
| CY2015Q3 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
60665000 | USD |
| CY2016Q3 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
59354000 | USD |
| CY2015Q3 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
167000 | USD |
| CY2016Q3 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
604000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
198491000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
29750000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
27105000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
169919000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-171586000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
15255000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
97351000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-99012000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax
|
8280000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax
|
31538000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax
|
21378000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax
|
2720000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax
|
11922000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax
|
8351000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
662000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
591000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
1374000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
242000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
217000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
527000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax
|
-17647000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax
|
184953000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax
|
220919000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-9515000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
78345000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
86659000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
|
3370000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
|
3375000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
|
3723000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
|
9203000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
|
9217000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
|
10068000 | USD |
| CY2016Q3 | us-gaap |
Prepaid Taxes
PrepaidTaxes
|
13138000 | USD |
| CY2014 | us-gaap |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
179502000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
11850000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
72568000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-72574000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
|
5334000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
|
381018000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
|
60493000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
529000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
160872000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
18648000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
3863000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
-3234000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
1524000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
1398000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-1195000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
592000 | USD |
| CY2015Q3 | us-gaap |
Other Deferred Credits Noncurrent
OtherDeferredCreditsNoncurrent
|
128073000 | USD |
| CY2016Q3 | us-gaap |
Other Deferred Credits Noncurrent
OtherDeferredCreditsNoncurrent
|
119242000 | USD |
| CY2014 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-14063000 | USD |
| CY2015 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-9823000 | USD |
| CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-12620000 | USD |
| CY2014 | us-gaap |
Other Nonoperating Income
OtherNonoperatingIncome
|
9461000 | USD |
| CY2015 | us-gaap |
Other Nonoperating Income
OtherNonoperatingIncome
|
8039000 | USD |
| CY2016 | us-gaap |
Other Nonoperating Income
OtherNonoperatingIncome
|
9820000 | USD |
| CY2015Q3 | us-gaap |
Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
|
10743000 | USD |
| CY2016Q3 | us-gaap |
Other Prepaid Expense Current
OtherPrepaidExpenseCurrent
|
10919000 | USD |
| CY2014 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
0 | USD |
| CY2015 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
0 | USD |
| CY2016 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
19543000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-5982000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
6611000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
9236000 | USD |
| CY2014 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
126642000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
130719000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
134824000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
914417000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1018179000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
581576000 | USD |
| CY2015Q3 | us-gaap |
Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent
|
202807000 | USD |
| CY2016Q3 | us-gaap |
Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent
|
277113000 | USD |
| CY2016Q3 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
1 | |
| CY2016Q3 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | shares |
| CY2015Q3 | us-gaap |
Prepaid Taxes
PrepaidTaxes
|
13709000 | USD |
| CY2015 | us-gaap |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
161833000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
444635000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
| CY2014 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
85600000 | USD |
| CY2015 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-85600000 | USD |
| CY2016 | us-gaap |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
92840000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
0 | USD |
| CY2016 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
0 | USD |
| CY2014 | us-gaap |
Proceeds From Repurchase Of Equity
ProceedsFromRepurchaseOfEquity
|
7474000 | USD |
| CY2015 | us-gaap |
Proceeds From Repurchase Of Equity
ProceedsFromRepurchaseOfEquity
|
10540000 | USD |
| CY2016 | us-gaap |
Proceeds From Repurchase Of Equity
ProceedsFromRepurchaseOfEquity
|
13849000 | USD |
| CY2014 | us-gaap |
Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
|
0 | USD |
| CY2015 | us-gaap |
Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
|
0 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Oil And Gas Property And Equipment
ProceedsFromSaleOfOilAndGasPropertyAndEquipment
|
137316000 | USD |
| CY2014 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
969907000 | USD |
| CY2015 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
1000509000 | USD |
| CY2016 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
523051000 | USD |
| CY2015Q3 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
9261323000 | USD |
| CY2016Q3 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
9539581000 | USD |
| CY2015Q3 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
5331895000 | USD |
| CY2016Q3 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
4454482000 | USD |
| CY2014Q3 | us-gaap |
Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
|
512000000000 | ft3 |
| CY2015Q3 | us-gaap |
Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
|
827000000000 | ft3 |
| CY2016Q3 | us-gaap |
Proved Undeveloped Reserve Volume
ProvedUndevelopedReserveVolume
|
543000000000 | ft3 |
| CY2016 | us-gaap |
Public Utilities Requested Rate Increase Decrease Amount
PublicUtilitiesRequestedRateIncreaseDecreaseAmount
|
41700000 | USD |
| CY2015Q3 | us-gaap |
Receivables Net Current
ReceivablesNetCurrent
|
105004000 | USD |
| CY2016Q3 | us-gaap |
Receivables Net Current
ReceivablesNetCurrent
|
133201000 | USD |
| CY2015 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
101140000 | USD |
| CY2016 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
128762000 | USD |
| CY2016Q3 | us-gaap |
Recorded Unconditional Purchase Obligation Due After Fifth Year
RecordedUnconditionalPurchaseObligationDueAfterFifthYear
|
794400000 | USD |
| CY2016Q3 | us-gaap |
Recorded Unconditional Purchase Obligation Due In Fifth Year
RecordedUnconditionalPurchaseObligationDueInFifthYear
|
83800000 | USD |
| CY2016Q3 | us-gaap |
Recorded Unconditional Purchase Obligation Due In Fourth Year
RecordedUnconditionalPurchaseObligationDueInFourthYear
|
95300000 | USD |
| CY2016Q3 | us-gaap |
Recorded Unconditional Purchase Obligation Due In Second Year
RecordedUnconditionalPurchaseObligationDueInSecondYear
|
96500000 | USD |
| CY2016Q3 | us-gaap |
Recorded Unconditional Purchase Obligation Due In Third Year
RecordedUnconditionalPurchaseObligationDueInThirdYear
|
94700000 | USD |
| CY2016Q3 | us-gaap |
Recorded Unconditional Purchase Obligation Due Within One Year
RecordedUnconditionalPurchaseObligationDueWithinOneYear
|
241200000 | USD |
| CY2015Q3 | us-gaap |
Refundable Gas Costs
RefundableGasCosts
|
56778000 | USD |
| CY2016Q3 | us-gaap |
Refundable Gas Costs
RefundableGasCosts
|
19537000 | USD |
| CY2015Q3 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
469097000 | USD |
| CY2016Q3 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
515315000 | USD |
| CY2015Q3 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
20438000 | USD |
| CY2016Q3 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
15616000 | USD |
| CY2015Q3 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
278227000 | USD |
| CY2016Q3 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
320750000 | USD |
| CY2015Q3 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
445096000 | USD |
| CY2016Q3 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
420793000 | USD |
| CY2015Q3 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
62124000 | USD |
| CY2016Q3 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
34262000 | USD |
| CY2015Q3 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
108617000 | USD |
| CY2016Q3 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
99789000 | USD |
| CY2014 | us-gaap |
Results Of Operations Accretion Of Asset Retirement Obligations
ResultsOfOperationsAccretionOfAssetRetirementObligations
|
6192000 | USD |
| CY2015 | us-gaap |
Results Of Operations Accretion Of Asset Retirement Obligations
ResultsOfOperationsAccretionOfAssetRetirementObligations
|
6186000 | USD |
| CY2016 | us-gaap |
Results Of Operations Accretion Of Asset Retirement Obligations
ResultsOfOperationsAccretionOfAssetRetirementObligations
|
6663000 | USD |
| CY2014 | us-gaap |
Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions
ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
|
291651000 | USD |
| CY2015 | us-gaap |
Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions
ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
|
234480000 | USD |
| CY2016 | us-gaap |
Results Of Operations Depreciation Depletion And Amortization And Valuation Provisions
ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions
|
136579000 | USD |
| CY2014 | us-gaap |
Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
|
0 | USD |
| CY2015 | us-gaap |
Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
|
1126257000 | USD |
| CY2016 | us-gaap |
Results Of Operations Impairment Of Oil And Gas Properties
ResultsOfOperationsImpairmentOfOilAndGasProperties
|
948307000 | USD |
| CY2014 | us-gaap |
Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
|
140484000 | USD |
| CY2015 | us-gaap |
Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
|
-444393000 | USD |
| CY2016 | us-gaap |
Results Of Operations Income Tax Expense
ResultsOfOperationsIncomeTaxExpense
|
-368940000 | USD |
| CY2014 | us-gaap |
Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
|
188633000 | USD |
| CY2015 | us-gaap |
Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
|
-606865000 | USD |
| CY2016 | us-gaap |
Results Of Operations Oil And Gas Producing Activities Net Income Excluding Corporate Overhead And Interest Costs
ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts
|
-504865000 | USD |
| CY2014 | us-gaap |
Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
|
165534000 | USD |
| CY2015 | us-gaap |
Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
|
167800000 | USD |
| CY2016 | us-gaap |
Results Of Operations Production Or Lifting Costs
ResultsOfOperationsProductionOrLiftingCosts
|
153914000 | USD |
| CY2014 | us-gaap |
Results Of Operations Revenue From Oil And Gas Producing Activities
ResultsOfOperationsRevenueFromOilAndGasProducingActivities
|
813259000 | USD |
| CY2015 | us-gaap |
Results Of Operations Revenue From Oil And Gas Producing Activities
ResultsOfOperationsRevenueFromOilAndGasProducingActivities
|
506721000 | USD |
| CY2016 | us-gaap |
Results Of Operations Revenue From Oil And Gas Producing Activities
ResultsOfOperationsRevenueFromOilAndGasProducingActivities
|
386152000 | USD |
| CY2014 | us-gaap |
Results Of Operations Sales Or Transfers To Entitys Other Operations
ResultsOfOperationsSalesOrTransfersToEntitysOtherOperations
|
2145000 | USD |
| CY2015 | us-gaap |
Results Of Operations Sales Or Transfers To Entitys Other Operations
ResultsOfOperationsSalesOrTransfersToEntitysOtherOperations
|
1946000 | USD |
| CY2016 | us-gaap |
Results Of Operations Sales Or Transfers To Entitys Other Operations
ResultsOfOperationsSalesOrTransfersToEntitysOtherOperations
|
1765000 | USD |
| CY2014 | us-gaap |
Results Of Operations Sales Revenue To Unaffiliated Enterprises
ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises
|
1000 | USD |
| CY2015 | us-gaap |
Results Of Operations Sales Revenue To Unaffiliated Enterprises
ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises
|
1000 | USD |
| CY2016 | us-gaap |
Results Of Operations Sales Revenue To Unaffiliated Enterprises
ResultsOfOperationsSalesRevenueToUnaffiliatedEnterprises
|
2000 | USD |
| CY2013Q3 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1442617000 | USD |
| CY2014Q3 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1614361000 | USD |
| CY2015Q3 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1103200000 | USD |
| CY2016Q3 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
676361000 | USD |
| CY2014 | us-gaap |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
55184000 | USD |
| CY2015 | us-gaap |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
-16573000 | USD |
| CY2016 | us-gaap |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
6202000 | USD |
| CY2014 | us-gaap |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
-626960000 | USD |
| CY2015 | us-gaap |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
-318753000 | USD |
| CY2016 | us-gaap |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
-218444000 | USD |
| CY2014 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
2113081000 | USD |
| CY2014Q4 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
523909000 | USD |
| CY2015Q1 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
596127000 | USD |
| CY2015Q2 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
339815000 | USD |
| CY2015Q3 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
301062000 | USD |
| CY2015 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
1760913000 | USD |
| CY2015Q4 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
375195000 | USD |
| CY2016Q1 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
449132000 | USD |
| CY2016Q2 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
335617000 | USD |
| CY2016Q3 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
292472000 | USD |
| CY2016 | us-gaap |
Sales Revenue Goods Gross
SalesRevenueGoodsGross
|
1452416000 | USD |
| CY2014 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
11763000 | USD |
| CY2016Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
39.48 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
|
0 | shares |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
|
0 | shares |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
3771000 | USD |
| CY2015 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
3208000 | USD |
| CY2016 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
5755000 | USD |
| CY2016Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
|
2714005 | shares |
| CY2016Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
19000 | shares |
| CY2016Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
277000 | USD |
| CY2015Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
306500 | shares |
| CY2016Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
19000 | shares |
| CY2015Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
37.73 | |
| CY2016Q3 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
39.48 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
37.62 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
|
0.00 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
|
0.00 | |
| CY2016Q3 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
277000 | USD |
| CY2016 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P0Y02M07D | |
| CY2016 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P0Y02M07D | |
| CY2015Q3 | us-gaap |
Short Term Bank Loans And Notes Payable
ShortTermBankLoansAndNotesPayable
|
0 | USD |
| CY2016Q3 | us-gaap |
Short Term Bank Loans And Notes Payable
ShortTermBankLoansAndNotesPayable
|
0 | USD |
| CY2015Q3 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
0 | USD |
| CY2016Q3 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
0 | USD |
| CY2014 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount
StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount
|
279563000 | USD |
| CY2015 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount
StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount
|
206382000 | USD |
| CY2016 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount
StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount
|
22105000 | USD |
| CY2013Q3 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
1966366000 | USD |
| CY2014Q3 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
2066878000 | USD |
| CY2015Q3 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
1323034000 | USD |
| CY2016Q3 | us-gaap |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
642528000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Shares Dividend Reinvestment Plan
StockIssuedDuringPeriodSharesDividendReinvestmentPlan
|
147056 | shares |
| CY2016 | us-gaap |
Stock Issued During Period Shares Employee Benefit Plan
StockIssuedDuringPeriodSharesEmployeeBenefitPlan
|
118864 | shares |
| CY2016 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
-287500 | shares |
| CY2016 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
88675 | shares |
| CY2015Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
2025440000 | USD |
| CY2016Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1527004000 | USD |
| CY2016Q3 | us-gaap |
Tax Credit Carryforward Amount
TaxCreditCarryforwardAmount
|
49000000 | USD |
| CY2014 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
90711000 | USD |
| CY2015 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
89564000 | USD |
| CY2016 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
81714000 | USD |
| CY2016 | us-gaap |
Unrealized Gain Loss On Price Risk Cash Flow Derivatives Before Tax
UnrealizedGainLossOnPriceRiskCashFlowDerivativesBeforeTax
|
111800000 | USD |
| CY2013Q3 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
2001000 | USD |
| CY2014Q3 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
3147000 | USD |
| CY2015Q3 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
5085000 | USD |
| CY2016Q3 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
396000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
1301000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
566000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
1314000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
2447000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
2504000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
396000 | USD |
| CY2015Q3 | us-gaap |
Unrecovered Costs For Purchased Gas Amount
UnrecoveredCostsForPurchasedGasAmount
|
0 | USD |
| CY2016Q3 | us-gaap |
Unrecovered Costs For Purchased Gas Amount
UnrecoveredCostsForPurchasedGasAmount
|
2440000 | USD |
| CY2013Q3 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
27144000 | USD |
| CY2014Q3 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
31811000 | USD |
| CY2015Q3 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
29029000 | USD |
| CY2016Q3 | us-gaap |
Valuation Allowances And Reserves Balance
ValuationAllowancesAndReservesBalance
|
21109000 | USD |
| CY2014 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
10856000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
9316000 | USD |
| CY2016 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
6819000 | USD |
| CY2014 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
3241000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
2585000 | USD |
| CY2016 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
1521000 | USD |
| CY2014 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
9430000 | USD |
| CY2015 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
14683000 | USD |
| CY2016 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
16260000 | USD |
| CY2014 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
84952347 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
84387755 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
84847993 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
83929989 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
84387755 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
84847993 | shares |
| CY2016 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:10px;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassification</font></div><div style="line-height:120%;padding-top:6px;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Due to the adoption of the authoritative guidance regarding the presentation of deferred income taxes, certain prior year amounts have been reclassified to conform with current year presentation. The Company reclassified Deferred Income Taxes of </font><font style="font-family:inherit;font-size:10pt;">$137.2 million</font><font style="font-family:inherit;font-size:10pt;"> previously shown as Current Assets in the Company's 2015 Form 10-K to Deferred Income Taxes shown as Deferred Credits on the Consolidated Balance Sheet at September 30, 2015.</font></div></div> |
