$BSM
Black Stone Minerals, L.P. Stock $bsm

$bsm Overview Financials Valuation SEC Filings Company Website

2015 Q4 Form 10-K Financial Statement

#000162828017002039 Filed on March 01, 2017

Income Statement

Concept	2015 Q4	2015 Q3	2015 Q2
Revenue	$100.0M	$137.0M	$64.80M
YoY Change	-40.87%	3.18%	-45.51%
Cost Of Revenue	$14.60M	$13.10M	$15.50M
YoY Change	-36.8%	-29.95%	-0.64%
Gross Profit	$85.50M	$123.9M	$49.30M
YoY Change	-41.48%	8.59%	-52.27%
Gross Profit Margin	85.47%	90.42%	76.08%
Selling, General & Admin	$23.60M	$19.00M	$19.70M
YoY Change	37.21%	21.79%	35.86%
% of Gross Profit	27.6%	15.33%	39.96%
Research & Development	$600.0K	$1.800M
YoY Change
% of Gross Profit	0.7%	1.45%
Depreciation & Amortization	$20.90M	$23.29M	$32.24M
YoY Change	-25.09%	-37.17%	34.87%
% of Gross Profit	24.44%	18.8%	65.39%
Operating Expenses	$47.00M	$82.32M	$186.0M
YoY Change	2.84%	15.11%	383.19%
Operating Profit	$38.50M	$54.70M	-$121.2M
YoY Change	-61.65%	-10.74%	-287.07%
Interest Expense	-$900.0K	$870.0K	$1.715M
YoY Change	-71.88%	-74.71%	-150.44%
% of Operating Profit	-2.34%	1.59%
Other Income/Expense, Net	$700.0K	-$807.0K	-$1.542M
YoY Change	600.0%	-76.09%	-320.29%
Pretax Income	-$49.70M	$53.90M	-$122.8M
YoY Change	140.1%	-6.91%	-297.75%
Income Tax
% Of Pretax Income
Net Earnings	-$49.73M	$53.89M	-$122.8M
YoY Change	140.09%	-6.93%	-297.66%
Net Earnings / Revenue	-49.71%	39.33%	-189.44%
Basic Earnings Per Share
Diluted Earnings Per Share	-$505.2K	$560.3K	-$1.274M
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept	2015 Q4	2015 Q3	2015 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$13.20M	$5.600M	$6.000M
YoY Change	-10.81%	-30.0%	-53.13%
Cash & Equivalents	$13.23M	$5.570M	$6.048M
Short-Term Investments
Other Short-Term Assets	$49.20M	$35.70M	$10.20M
YoY Change	6.96%	218.75%	-5.56%
Inventory
Prepaid Expenses
Receivables	$41.25M	$52.35M	$54.20M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$103.6M	$93.66M	$70.40M
YoY Change	-23.21%	-15.47%	-45.55%
LONG-TERM ASSETS
Property, Plant & Equipment	$938.6M	$1.052B	$1.046B
YoY Change	-21.08%	-20.95%	-21.61%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$19.20M	$15.86M	$2.100M
YoY Change	658.29%	446.97%	-30.0%
Total Long-Term Assets	$957.8M	$1.068B	$1.048B
YoY Change	-19.64%	-19.94%	-21.63%
TOTAL ASSETS
Total Short-Term Assets	$103.6M	$93.66M	$70.40M
Total Long-Term Assets	$957.8M	$1.068B	$1.048B
Total Assets	$1.061B	$1.161B	$1.119B
YoY Change	-20.0%	-19.59%	-23.74%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.036M	$28.11M	$35.30M
YoY Change	-7.32%	-28.11%	-2.75%
Accrued Expenses	$58.00M	$18.23M	$15.20M
YoY Change	44.17%	23.99%	26.67%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$63.04M	$46.34M	$65.50M
YoY Change	-36.05%	-56.21%	-39.18%
LONG-TERM LIABILITIES
Long-Term Debt	$66.00M	$43.00M	$6.000M
YoY Change	-83.25%	-90.0%	-98.68%
Other Long-Term Liabilities	$21.70M	$21.90M	$22.40M
YoY Change	9.6%	27.33%	60.0%
Total Long-Term Liabilities	$87.70M	$64.90M	$28.40M
YoY Change	-78.81%	-85.49%	-93.92%
TOTAL LIABILITIES
Total Short-Term Liabilities	$63.04M	$46.34M	$65.50M
Total Long-Term Liabilities	$87.70M	$64.90M	$28.40M
Total Liabilities	$150.8M	$111.3M	$93.90M
YoY Change	-70.57%	-79.88%	-83.66%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$910.7M	$1.050B	$1.025B
YoY Change
Total Liabilities & Shareholders Equity	$1.061B	$1.161B	$1.119B
YoY Change	-20.0%	-19.6%	-23.74%

Cashflow Statement

Concept	2015 Q4	2015 Q3	2015 Q2
OPERATING ACTIVITIES
Net Income	-$49.73M	$53.89M	-$122.8M
YoY Change	140.09%	-6.93%	-297.66%
Depreciation, Depletion And Amortization	$20.90M	$23.29M	$32.24M
YoY Change	-25.09%	-37.17%	34.87%
Cash From Operating Activities	$67.50M	$73.10M	$69.70M
YoY Change	-42.65%	-35.02%	-23.99%
INVESTING ACTIVITIES
Capital Expenditures	-$12.00M	-$62.30M	-$28.80M
YoY Change	-57.3%	91.1%	75.61%
Acquisitions
YoY Change
Other Investing Activities	$25.30M	$0.00	$0.00
YoY Change	29.74%		-100.0%
Cash From Investing Activities	$13.20M	-$62.20M	-$28.80M
YoY Change	-253.49%	90.8%	31.51%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-73.10M	-11.40M	-43.20M
YoY Change	-28.54%	-86.54%	-42.4%
NET CHANGE
Cash From Operating Activities	67.50M	73.10M	69.70M
Cash From Investing Activities	13.20M	-62.20M	-28.80M
Cash From Financing Activities	-73.10M	-11.40M	-43.20M
Net Change In Cash	7.600M	-500.0K	-2.300M
YoY Change	11.76%	-89.58%	-55.77%
FREE CASH FLOW
Cash From Operating Activities	$67.50M	$73.10M	$69.70M
Capital Expenditures	-$12.00M	-$62.30M	-$28.80M
Free Cash Flow	$79.50M	$135.4M	$98.50M
YoY Change	-45.47%	-6.69%	-8.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2015Q4	bsm	Accrued Capital Expenditures Current AccruedCapitalExpendituresCurrent	20494000	USD
CY2016Q4	bsm	Accrued Capital Expenditures Current AccruedCapitalExpendituresCurrent	17775000	USD
CY2014	bsm	Accrued Distribution Equivalent Rights AccruedDistributionEquivalentRights	0	USD
CY2015	bsm	Accrued Distribution Equivalent Rights AccruedDistributionEquivalentRights	159000	USD
CY2016	bsm	Accrued Distribution Equivalent Rights AccruedDistributionEquivalentRights	847000	USD
CY2014	bsm	Asset Retirement Obligation Liabilities Incurred And Revision Of Estimate AssetRetirementObligationLiabilitiesIncurredAndRevisionOfEstimate	2505000	USD
CY2015	bsm	Asset Retirement Obligation Liabilities Incurred And Revision Of Estimate AssetRetirementObligationLiabilitiesIncurredAndRevisionOfEstimate	272000	USD
CY2016	bsm	Asset Retirement Obligation Liabilities Incurred And Revision Of Estimate AssetRetirementObligationLiabilitiesIncurredAndRevisionOfEstimate	2009000	USD
CY2016Q2	bsm	Cash Settled Liabilities Reclassified To Equity Settled Liabilities CashSettledLiabilitiesReclassifiedToEquitySettledLiabilities	10100000	USD
CY2014	bsm	Change In Accrued Distributions Payable For Redeemable Preferred Units ChangeInAccruedDistributionsPayableForRedeemablePreferredUnits	-4000	USD
CY2015	bsm	Change In Accrued Distributions Payable For Redeemable Preferred Units ChangeInAccruedDistributionsPayableForRedeemablePreferredUnits	-2016000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	0	USD
CY2016Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	1044143000	USD
CY2015Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	1957648000	USD
CY2015Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Net CapitalizedCostsOilAndGasProducingActivitiesNet	938415000	USD
CY2016	bsm	Change In Accrued Distributions Payable For Redeemable Preferred Units ChangeInAccruedDistributionsPayableForRedeemablePreferredUnits	-1324000	USD
CY2015	bsm	Charges On Partners Equity For Accrued Distribution Equivalent Rights ChargesOnPartnersEquityForAccruedDistributionEquivalentRights	159000	USD
CY2016	bsm	Charges On Partners Equity For Accrued Distribution Equivalent Rights ChargesOnPartnersEquityForAccruedDistributionEquivalentRights	688000	USD
CY2016Q4	bsm	Cost Method Investments Maximum Ownership Percentage For Accounting Purposes CostMethodInvestmentsMaximumOwnershipPercentageForAccountingPurposes	0.20
CY2014	bsm	Dividends On Predecessor Preferred Units DividendsOnPredecessorPreferredUnits	15720000	USD
CY2015	bsm	Dividends On Predecessor Preferred Units DividendsOnPredecessorPreferredUnits	4040000	USD
CY2015	bsm	Fair Value Assets Transfers Between The Three Levels Amount FairValueAssetsTransfersBetweenTheThreeLevelsAmount	0	USD
CY2016	bsm	Fair Value Assets Transfers Between The Three Levels Amount FairValueAssetsTransfersBetweenTheThreeLevelsAmount	0	USD
CY2015	bsm	Fair Value Liabilities Transfers Between The Three Levels Amount FairValueLiabilitiesTransfersBetweenTheThreeLevelsAmount	0	USD
CY2016	bsm	Fair Value Liabilities Transfers Between The Three Levels Amount FairValueLiabilitiesTransfersBetweenTheThreeLevelsAmount	0	USD
CY2014	bsm	Lease Bonus And Other Income LeaseBonusAndOtherIncome	46139000	USD
CY2015	bsm	Lease Bonus And Other Income LeaseBonusAndOtherIncome	23080000	USD
CY2016	bsm	Lease Bonus And Other Income LeaseBonusAndOtherIncome	32079000	USD
CY2014	bsm	Noncash Or Part Noncash Acquisition Deferred Revenue Settled Assumed NoncashOrPartNoncashAcquisitionDeferredRevenueSettledAssumed	-2657000	USD
CY2015	bsm	Noncash Or Part Noncash Acquisition Deferred Revenue Settled Assumed NoncashOrPartNoncashAcquisitionDeferredRevenueSettledAssumed	0	USD
CY2016	bsm	Noncash Or Part Noncash Acquisition Deferred Revenue Settled Assumed NoncashOrPartNoncashAcquisitionDeferredRevenueSettledAssumed	0	USD
CY2015	bsm	Partners Capital Account Exchanged From Predecessor PartnersCapitalAccountExchangedFromPredecessor	0	USD
CY2014	bsm	Payments For Proceeds From Derivative Instruments PaymentsForProceedsFromDerivativeInstruments	1947000	USD
CY2015	bsm	Payments For Proceeds From Derivative Instruments PaymentsForProceedsFromDerivativeInstruments	-63225000	USD
CY2016	bsm	Payments For Proceeds From Derivative Instruments PaymentsForProceedsFromDerivativeInstruments	-44789000	USD
CY2014	bsm	Payments For Redemptions Of Redeemable Preferred Units PaymentsForRedemptionsOfRedeemablePreferredUnits	0	USD
CY2015	bsm	Payments For Redemptions Of Redeemable Preferred Units PaymentsForRedemptionsOfRedeemablePreferredUnits	40747000	USD
CY2016	bsm	Payments For Redemptions Of Redeemable Preferred Units PaymentsForRedemptionsOfRedeemablePreferredUnits	18461000	USD
CY2014	bsm	Payments For Repurchase Of Common And Subordinated Units PaymentsForRepurchaseOfCommonAndSubordinatedUnits	0	USD
CY2015	bsm	Payments For Repurchase Of Common And Subordinated Units PaymentsForRepurchaseOfCommonAndSubordinatedUnits	0	USD
CY2016	bsm	Payments For Repurchase Of Common And Subordinated Units PaymentsForRepurchaseOfCommonAndSubordinatedUnits	27436000	USD
CY2014	bsm	Proceeds From Issuance Of Common Units Net Of Offering Costs ProceedsFromIssuanceOfCommonUnitsNetOfOfferingCosts	-7587000	USD
CY2015	bsm	Proceeds From Issuance Of Common Units Net Of Offering Costs ProceedsFromIssuanceOfCommonUnitsNetOfOfferingCosts	399087000	USD
CY2016	bsm	Proceeds From Issuance Of Common Units Net Of Offering Costs ProceedsFromIssuanceOfCommonUnitsNetOfOfferingCosts	0	USD
CY2014	bsm	Public Offering Costs Capitalized And Offset Against Proceeds From Initial Public Offering PublicOfferingCostsCapitalizedAndOffsetAgainstProceedsFromInitialPublicOffering	0	USD
CY2015	bsm	Public Offering Costs Capitalized And Offset Against Proceeds From Initial Public Offering PublicOfferingCostsCapitalizedAndOffsetAgainstProceedsFromInitialPublicOffering	7587000	USD
CY2016	bsm	Public Offering Costs Capitalized And Offset Against Proceeds From Initial Public Offering PublicOfferingCostsCapitalizedAndOffsetAgainstProceedsFromInitialPublicOffering	0	USD
CY2016Q4	bsm	Reductionin Production Volume Due To Cap ReductioninProductionVolumeDueToCap	1.0	MBoe
CY2015Q4	bsm	Severance Costs Current SeveranceCostsCurrent	3889000	USD
CY2016Q4	bsm	Severance Costs Current SeveranceCostsCurrent	0	USD
CY2014	bsm	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cash Payments Of Vested Units ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCashPaymentsOfVestedUnits	0	USD
CY2016	bsm	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cash Payments Of Vested Units ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCashPaymentsOfVestedUnits	0	USD
CY2016	dei	Amendment Flag AmendmentFlag	false
CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-12-31
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0001621434
CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016Q2	dei	Entity Public Float EntityPublicFloat	1064853317	USD
CY2016	dei	Entity Registrant Name EntityRegistrantName	Black Stone Minerals, L.P.
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1000000	USD
CY2016Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	0	USD
CY2015Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3699000	USD
CY2016	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	871000	USD
CY2016	dei	Trading Symbol TradingSymbol	BSM
CY2015Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	5036000	USD
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	4142000	USD
CY2015Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	41246000	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	68181000	USD
CY2016Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3175000	USD
CY2015Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	16554000	USD
CY2016Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	20898000	USD
CY2015Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	58003000	USD
CY2016Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	50952000	USD
CY2015Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	7000000	USD
CY2016Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	0	USD
CY2014	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	965000	USD
CY2015	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	935000	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	900000	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	900000	USD
CY2014	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1060000	USD
CY2015	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1075000	USD
CY2016	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	892000	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	272000	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	2009000	USD
CY2015	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	143000	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	317000	USD
CY2015	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
CY2016	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	181000	USD
CY2014Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	9381000	USD
CY2015Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	10585000	USD
CY2016Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	13350000	USD
CY2015Q1	us-gaap	Assets Assets	1274291000	USD
CY2015Q2	us-gaap	Assets Assets	1118569000	USD
CY2015Q3	us-gaap	Assets Assets	1161446000	USD
CY2015Q4	us-gaap	Assets Assets	1061436000	USD
CY2016Q1	us-gaap	Assets Assets	1045843000	USD
CY2016Q2	us-gaap	Assets Assets	1126830000	USD
CY2016Q3	us-gaap	Assets Assets	1137232000	USD
CY2016Q4	us-gaap	Assets Assets	1128827000	USD
CY2015Q4	us-gaap	Assets Current AssetsCurrent	103595000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	78989000	USD
CY2015Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	1543796000	USD
CY2016Q4	us-gaap	Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities	1652930000	USD
CY2015Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	2482211000	USD
CY2016Q4	us-gaap	Capitalized Costs Oil And Gas Producing Activities Gross CapitalizedCostsOilAndGasProducingActivitiesGross	2697073000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	13233000	USD
CY2015	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	39240000	USD
CY2016	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	6064000	USD
CY2014	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	13215000	USD
CY2015	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	2302000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	221000	USD
CY2016Q4	us-gaap	Capitalized Costs Proved Properties CapitalizedCostsProvedProperties	2091337000	USD
CY2015Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	524563000	USD
CY2016Q4	us-gaap	Capitalized Costs Unproved Properties CapitalizedCostsUnprovedProperties	605736000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	30123000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14803000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	9772000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-15320000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1570000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-3461000	USD
CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016	us-gaap	Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves	40242000	USD
CY2014	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	35706000	USD
CY2015	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	60994000	USD
CY2016	us-gaap	Costs Incurred Acquisition Of Unproved Oil And Gas Properties CostsIncurredAcquisitionOfUnprovedOilAndGasProperties	100888000	USD
CY2014	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	50595000	USD
CY2015	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	60056000	USD
CY2016	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	73316000	USD
CY2014	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	631000	USD
CY2015	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	2592000	USD
CY2016	us-gaap	Costs Incurred Exploration Costs CostsIncurredExplorationCosts	645000	USD
CY2014	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	100147000	USD
CY2015	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	125944000	USD
CY2016	us-gaap	Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities	215091000	USD
CY2015Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	7902000	USD
CY2016Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	1485000	USD
CY2015Q4	us-gaap	Deferred Revenue DeferredRevenue	3257000	USD
CY2016Q4	us-gaap	Deferred Revenue DeferredRevenue	518000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	111962000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	104298000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	102487000	USD
CY2015Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2016Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	3879000	USD
CY2015Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	48260000	USD
CY2016Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	0	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	64534000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	3879000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	64534000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	0	USD
CY2016	us-gaap	Exploration Expense ExplorationExpense	645000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	20598000	USD
CY2015	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7522000	USD
CY2016	us-gaap	Dividends Preferred Stock DividendsPreferredStock	5763000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	0	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	16719000	USD
CY2015Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	0	USD
CY2016Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	16237000	USD
CY2015Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	0	USD
CY2016Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	482000	USD
CY2015Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2016Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	3879000	USD
CY2014	us-gaap	Exploration Expense ExplorationExpense	631000	USD
CY2015	us-gaap	Exploration Expense ExplorationExpense	2592000	USD
CY2014	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	209651000	USD
CY2015	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	165020000	USD
CY2016	us-gaap	Extensions Discoveries Additions And Improved Recovery Less Related Costs ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts	86606000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	2493294000	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	1211290000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	1267179000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	64968000	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	84746000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts	36509000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	0	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	0	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense	3516000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	2022493000	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	920683000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	1033405000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	405833000	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	205861000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	193749000	USD
CY2014Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	879399000	USD
CY2015Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	365711000	USD
CY2016Q4	us-gaap	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	430390000	USD
CY2014	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	37336000	USD
CY2015	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	90288000	USD
CY2016	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-36464000	USD
CY2014	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-32000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	4873000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	4793000	USD
CY2014	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	62765000	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	77175000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	73139000	USD
CY2015Q4	us-gaap	General Partners Capital Account GeneralPartnersCapitalAccount	0	USD
CY2016Q4	us-gaap	General Partners Capital Account GeneralPartnersCapitalAccount	0	USD
CY2014	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	117930000	USD
CY2015	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	249569000	USD
CY2016	us-gaap	Impairment Of Oil And Gas Properties ImpairmentOfOilAndGasProperties	6775000	USD
CY2014	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	0	USD
CY2015	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	1260000	USD
CY2016	us-gaap	Income Loss Attributable To Noncontrolling Interest IncomeLossAttributableToNoncontrollingInterest	12000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	8003000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	11221000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-23029000	USD
CY2014	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-17210000	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-33586000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	29759000	USD
CY2014	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	-145000	USD
CY2015	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	-143000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-95000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	180000	USD
CY2014	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	24210000	USD
CY2016	us-gaap	Increase Decrease In Asset Retirement Obligations IncreaseDecreaseInAssetRetirementObligations	-317000	USD
CY2014	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-2589000	USD
CY2015	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-660000	USD
CY2016	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-870000	USD
CY2014	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	7854000	USD
CY2015	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	669000	USD
CY2015	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	584000	USD
CY2016	us-gaap	Increase Decrease In Estimated Future Development Costs IncreaseDecreaseInEstimatedFutureDevelopmentCosts	0	USD
CY2014	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-453000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	196656000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	403166000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1061436000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1128827000	USD
CY2014	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	7000000	USD
CY2015	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2014	us-gaap	Lease Operating Expense LeaseOperatingExpense	21233000	USD
CY2015	us-gaap	Lease Operating Expense LeaseOperatingExpense	21583000	USD
CY2016	us-gaap	Lease Operating Expense LeaseOperatingExpense	18755000	USD
CY2015Q4	us-gaap	Liabilities Liabilities	150783000	USD
CY2016	us-gaap	Increase Due To Purchases Of Minerals In Place IncreaseDueToPurchasesOfMineralsInPlace	34751000	USD
CY2014	us-gaap	Interest Expense InterestExpense	13509000	USD
CY2015	us-gaap	Interest Expense InterestExpense	6418000	USD
CY2016	us-gaap	Interest Expense InterestExpense	7547000	USD
CY2014	us-gaap	Interest Paid InterestPaid	12754000	USD
CY2015	us-gaap	Interest Paid InterestPaid	5478000	USD
CY2016	us-gaap	Interest Paid InterestPaid	6535000	USD
CY2014	us-gaap	Investment Income Interest InvestmentIncomeInterest	28000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	58000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	656000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1900000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1800000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1900000	USD
CY2016	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	63039000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	71331000	USD
CY2015Q1	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	389000000	USD
CY2015Q2	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	6000000	USD
CY2015Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	43000000	USD
CY2015Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	66000000	USD
CY2016Q1	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	116000000	USD
CY2016Q2	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	285000000	USD
CY2016Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	299000000	USD
CY2016Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	316000000	USD
CY2015	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	81220000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	176055000	USD
CY2014	us-gaap	Natural Gas Production Revenue NaturalGasProductionRevenue	207456000	USD
CY2015	us-gaap	Natural Gas Production Revenue NaturalGasProductionRevenue	116018000	USD
CY2016	us-gaap	Natural Gas Production Revenue NaturalGasProductionRevenue	122836000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-310335000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-195307000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	21425000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-101110000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-90998000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-221542000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	396125000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	169187000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-101755000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	20188000	USD
CY2015	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	0	USD
CY2016	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	0	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	0	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-108017000	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8943000	USD
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-22111000	USD
CY2016	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-81456000	USD
CY2014	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	14130000	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	21496000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	284735000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	26553000	USD
CY2014	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	2258000	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-12522000	USD
CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5450000	USD
CY2015Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-107587000	USD
CY2015Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	50916000	USD
CY2015Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-51346000	USD
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	36219000	USD
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8614000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	14437000	USD
CY2014	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	75284000	USD
CY2015	us-gaap	Net Increase Decrease In Sales And Transfer Prices And Production Costs NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts	-621065000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-7281000	USD
CY2014	us-gaap	Oil And Condensate Revenue OilAndCondensateRevenue	257390000	USD
CY2015	us-gaap	Oil And Condensate Revenue OilAndCondensateRevenue	163538000	USD
CY2016	us-gaap	Oil And Condensate Revenue OilAndCondensateRevenue	142382000	USD
CY2015Q4	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion Amortization And Impairment OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAmortizationAndImpairment	1543796000	USD
CY2016Q4	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion Amortization And Impairment OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAmortizationAndImpairment	1652930000	USD
CY2015Q4	us-gaap	Oil And Gas Property Successful Effort Method Gross OilAndGasPropertySuccessfulEffortMethodGross	2482211000	USD
CY2016Q4	us-gaap	Oil And Gas Property Successful Effort Method Gross OilAndGasPropertySuccessfulEffortMethodGross	2697073000	USD
CY2015Q4	us-gaap	Oil And Gas Property Successful Effort Method Net OilAndGasPropertySuccessfulEffortMethodNet	938415000	USD
CY2016Q4	us-gaap	Oil And Gas Property Successful Effort Method Net OilAndGasPropertySuccessfulEffortMethodNet	1044143000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	366612000	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	488779000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	233364000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	181709000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	-95855000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	11610000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-19478000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	39316000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-3979000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	27469000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	3297000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1603000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	12000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	35000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1647000	USD
CY2015Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6367000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9104000	USD
CY2014	us-gaap	Other Expenses OtherExpenses	1424000	USD
CY2015	us-gaap	Other Expenses OtherExpenses	1593000	USD
CY2016	us-gaap	Other Expenses OtherExpenses	0	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	959000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	910000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-390000	USD
CY2014	us-gaap	Partners Capital Account Acquisitions PartnersCapitalAccountAcquisitions	2258000	USD
CY2015	us-gaap	Partners Capital Account Acquisitions PartnersCapitalAccountAcquisitions	0	USD
CY2014	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	225273000	USD
CY2015	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	73205000	USD
CY2014	us-gaap	Partners Capital Account Exchanges And Conversions PartnersCapitalAccountExchangesAndConversions	221000	USD
CY2015	us-gaap	Partners Capital Account Exchanges And Conversions PartnersCapitalAccountExchangesAndConversions	39240000	USD
CY2016	us-gaap	Partners Capital Account Exchanges And Conversions PartnersCapitalAccountExchangesAndConversions	6064000	USD
CY2015	us-gaap	Partners Capital Account Public Sale Of Units PartnersCapitalAccountPublicSaleOfUnits	391500000	USD
CY2014	us-gaap	Partners Capital Account Treasury Units Purchases PartnersCapitalAccountTreasuryUnitsPurchases	5199000	USD
CY2015	us-gaap	Partners Capital Account Treasury Units Purchases PartnersCapitalAccountTreasuryUnitsPurchases	3015000	USD
CY2016	us-gaap	Partners Capital Account Treasury Units Purchases PartnersCapitalAccountTreasuryUnitsPurchases	27436000	USD
CY2014	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	11340000	USD
CY2015	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	18000000	USD
CY2016	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	23845000	USD
CY2015Q4	us-gaap	Partners Capital Attributable To Noncontrolling Interest PartnersCapitalAttributableToNoncontrollingInterest	1144000	USD
CY2016Q4	us-gaap	Partners Capital Attributable To Noncontrolling Interest PartnersCapitalAttributableToNoncontrollingInterest	1021000	USD
CY2013Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	716403000	USD
CY2014Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	653217000	USD
CY2015Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	831491000	USD
CY2016Q4	us-gaap	Partners Capital Including Portion Attributable To Noncontrolling Interest PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest	671646000	USD
CY2014	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	5199000	USD
CY2015	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	3015000	USD
CY2016	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2014	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1376000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	239000	USD
CY2014	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2015	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	208000	USD
CY2016	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	111000	USD
CY2014	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	827000	USD
CY2015	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	181000	USD
CY2016	us-gaap	Payments To Acquire Furniture And Fixtures PaymentsToAcquireFurnitureAndFixtures	425000	USD
CY2014	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	45552000	USD
CY2015	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	62278000	USD
CY2016	us-gaap	Payments To Acquire Oil And Gas Property PaymentsToAcquireOilAndGasProperty	141136000	USD
CY2014	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	74201000	USD
CY2015	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	54244000	USD
CY2016	us-gaap	Payments To Explore And Develop Oil And Gas Properties PaymentsToExploreAndDevelopOilAndGasProperties	80179000	USD
CY2015Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	856000	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1036000	USD
CY2015Q4	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	19247000	USD
CY2014	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	19470000	USD
CY2015	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	25705000	USD
CY2016	us-gaap	Proceeds From Sale Of Oil And Gas Property And Equipment ProceedsFromSaleOfOilAndGasPropertyAndEquipment	198000	USD
CY2014	us-gaap	Production Tax Expense ProductionTaxExpense	49575000	USD
CY2015	us-gaap	Production Tax Expense ProductionTaxExpense	35767000	USD
CY2016	us-gaap	Production Tax Expense ProductionTaxExpense	35464000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	169187000	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	5167000	USD
CY2014	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	12162000	USD
CY2015	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	7084000	USD
CY2016	us-gaap	Previously Estimated Development Costs Incurred PreviouslyEstimatedDevelopmentCostsIncurred	28909000	USD
CY2014	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	101000	USD
CY2015	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2016	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2014	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	230000000	USD
CY2015	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	245600000	USD
CY2016	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	349000000	USD
CY2015Q1	us-gaap	Profit Loss ProfitLoss	17299000	USD
CY2015Q2	us-gaap	Profit Loss ProfitLoss	-122766000	USD
CY2015Q3	us-gaap	Profit Loss ProfitLoss	53892000	USD
CY2015Q4	us-gaap	Profit Loss ProfitLoss	-49730000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	-101305000	USD
CY2016Q1	us-gaap	Profit Loss ProfitLoss	10749000	USD
CY2016Q2	us-gaap	Profit Loss ProfitLoss	-20810000	USD
CY2016Q3	us-gaap	Profit Loss ProfitLoss	37535000	USD
CY2016Q4	us-gaap	Profit Loss ProfitLoss	-7286000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	20188000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	938594000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1044671000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	14660000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Other Accumulated Depreciation PropertyPlantAndEquipmentOtherAccumulatedDepreciation	14327000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	179000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Other Net PropertyPlantAndEquipmentOtherNet	528000	USD
CY2014	us-gaap	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	6254	MBoe
CY2015	us-gaap	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	12110	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Extension And Discovery Energy ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy	15120	MBoe
CY2013Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	58942	MBoe
CY2014Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	51109	MBoe
CY2015Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	49788	MBoe
CY2016Q4	us-gaap	Proved Developed And Undeveloped Reserve Net Energy ProvedDevelopedAndUndevelopedReserveNetEnergy	63425	MBoe
CY2014	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	10051	MBoe
CY2015	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	10463	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Production Energy ProvedDevelopedAndUndevelopedReserveProductionEnergy	11596	MBoe
CY2014	us-gaap	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	1329	MBoe
CY2015	us-gaap	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	69	MBoe
CY2015Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	44590	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Purchase Of Mineral In Place Energy ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy	2269	MBoe
CY2014	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-5365	MBoe
CY2014Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	595	MBoe
CY2015	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	-3037	MBoe
CY2016	us-gaap	Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy	7844	MBoe
CY2014Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	50514	MBoe
CY2016Q4	us-gaap	Proved Developed Reserves Boe1 ProvedDevelopedReservesBOE1	55327	MBoe
CY2015Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	5198	MBoe
CY2016Q4	us-gaap	Proved Undeveloped Reserve Boe1 ProvedUndevelopedReserveBOE1	8098	MBoe
CY2014	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	0	USD
CY2015	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	7522000	USD
CY2016	us-gaap	Redeemable Preferred Stock Dividends RedeemablePreferredStockDividends	5763000	USD
CY2014	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	287000000	USD
CY2015	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	573600000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	99000000	USD
CY2014	us-gaap	Revenues Revenues	548321000	USD
CY2015Q1	us-gaap	Revenues Revenues	91061000	USD
CY2015Q2	us-gaap	Revenues Revenues	64803000	USD
CY2015Q3	us-gaap	Revenues Revenues	137020000	USD
CY2015Q4	us-gaap	Revenues Revenues	100040000	USD
CY2015	us-gaap	Revenues Revenues	392924000	USD
CY2016Q1	us-gaap	Revenues Revenues	64381000	USD
CY2016Q2	us-gaap	Revenues Revenues	40569000	USD
CY2016Q3	us-gaap	Revenues Revenues	99171000	USD
CY2016Q4	us-gaap	Revenues Revenues	56712000	USD
CY2016	us-gaap	Revenues Revenues	260833000	USD
CY2014	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-110431000	USD
CY2015	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	-67911000	USD
CY2016	us-gaap	Revisions Of Previous Quantity Estimates RevisionsOfPreviousQuantityEstimates	147507000	USD
CY2014	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	391983000	USD
CY2015	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	222206000	USD
CY2016	us-gaap	Sales And Transfers Of Oil And Gas Produced Net Of Production Costs SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts	210354000	USD
CY2014	us-gaap	Share Based Compensation ShareBasedCompensation	11340000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	18000000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	43138000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.73
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	18.79
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	10.09
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	8600000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	9400000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	11900000	USD
CY2014	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	12564000	USD
CY2015	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	35394000	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther	-13582000	USD
CY2014	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-42163000	USD
CY2015	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	-588122000	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease	48043000	USD
CY2014	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	-118526000	USD
CY2015	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	-114309000	USD
CY2016	us-gaap	Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount	-55662000	USD
CY2013Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1185257000	USD
CY2014Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	1143094000	USD
CY2015Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	554972000	USD
CY2016Q4	us-gaap	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	603015000	USD
CY2016Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	50000000	USD
CY2015Q1	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	120889000	USD
CY2015Q2	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	120904000	USD
CY2015Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	120936000	USD
CY2015Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	79162000	USD
CY2016Q1	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	54001000	USD
CY2016Q2	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	54001000	USD
CY2016Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	54015000	USD
CY2016Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	54015000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1300000	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	20200000	USD
CY2016	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:16px;text-indent:37px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Concentration of credit risk</font><font style="font-family:inherit;font-size:10pt;">: Financial instruments that potentially subject the Partnership to credit risk consist principally of cash and cash equivalent balances, accounts receivable, and commodity derivative financial instruments. The Partnership maintains cash and cash equivalent balances with major financial institutions. At times, those balances exceed federally insured limits; however, no losses have been incurred. The Partnership attempts to limit the amount of credit exposure to any one company through procedures that include credit approvals, credit limits and terms, and prepayments. The Partnership’s customer base is made up of its lessees, which are primarily major integrated and international oil and natural gas companies and other operators, though the Partnership’s credit risk may extend to the eventual purchasers of oil and natural gas produced from the Partnership’s properties. The Partnership believes the credit quality of its customer base is high and has not experienced significant write-offs in its accounts receivable balances. See Note 8 – Significant Customers for further discussion. Derivative instruments may expose the Partnership to credit risk. However, the Partnership monitors the creditworthiness of its counterparties.</font></div></div>
CY2016	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;text-indent:37px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Use of estimates</font><font style="font-family:inherit;font-size:10pt;">: The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.</font></div><div style="line-height:120%;padding-top:16px;text-indent:37px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Partnership’s consolidated financial statements are based on a number of significant estimates including oil and natural gas reserve quantities that are the basis for the calculations of depreciation, depletion, amortization (“DD&A”) and impairment of oil and natural gas properties. Reservoir engineering is a subjective process of estimating underground accumulations of oil and natural gas. There are numerous uncertainties inherent in estimating quantities of proved oil and natural gas reserves. The accuracy of any reserve estimate is a function of the quality of available data and of engineering and geological interpretation and judgment. As a result, reserve estimates may differ from the quantities of oil and natural gas that are ultimately recovered. The Partnership’s reserve estimates are determined by an independent petroleum engineering firm. Other items subject to significant estimates and assumptions include the carrying amount of oil and natural gas properties, valuation of derivative instruments, revenue accruals, asset retirement obligation (“ARO”) liabilities, and determination of the fair value of equity-based awards.</font></div><div style="line-height:120%;padding-top:16px;text-indent:37px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Partnership evaluates estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic and commodity price environment. The volatility of commodity prices results in increased uncertainty inherent in such estimates and assumptions. A significant decline in natural gas or oil prices could result in a reduction in the Partnership’s fair value estimates and cause the Partnership to perform analyses to determine if its oil and natural gas properties are impaired. As future commodity prices cannot be predicted accurately, actual results could differ significantly from estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0001628280-17-002039-index-headers.html	Edgar Link	pending
0001628280-17-002039-index.html	Edgar Link	pending
0001628280-17-002039.txt	Edgar Link	pending
0001628280-17-002039-xbrl.zip	Edgar Link	pending
a2015map.jpg	Edgar Link	pending
bsm-20161231.xml	Edgar Link	completed
bsm-20161231.xsd	Edgar Link	pending
bsm-20161231_cal.xml	Edgar Link	unprocessable
bsm-20161231_def.xml	Edgar Link	unprocessable
bsm-20161231_lab.xml	Edgar Link	unprocessable
bsm-20161231_pre.xml	Edgar Link	unprocessable
bsm10-kdoc.htm	Edgar Link	pending
bsm10-kdoc_chartx03743.jpg	Edgar Link	pending
exhibit1032ndamendtocredit.htm	Edgar Link	pending
exhibit211-subsidiariesofb.htm	Edgar Link	pending
exhibit231-consentofindepe.htm	Edgar Link	pending
exhibit232-consentofindepe.htm	Edgar Link	pending
exhibit233-consentofindepe.htm	Edgar Link	pending
exhibit233consentofin_image.jpg	Edgar Link	pending
exhibit311-certificationof.htm	Edgar Link	pending
exhibit312-certificationof.htm	Edgar Link	pending
exhibit321-certificationof.htm	Edgar Link	pending
exhibit991nsaiblackstoneye.htm	Edgar Link	pending
exhibit991nsaiblackst_image1.jpg	Edgar Link	pending
exhibit991nsaiblackst_image2.jpg	Edgar Link	pending
exhibit991nsaiblackst_image3.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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2015 Q4 Form 10-K Financial Statement

#000162828017002039 Filed on March 01, 2017

Income Statement

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$BSM Black Stone Minerals, L.P. Stock $bsm

2015 Q4 Form 10-K Financial Statement

#000162828017002039 Filed on March 01, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BSM
Black Stone Minerals, L.P. Stock $bsm