2014 Q4 Form 10-K Financial Statement

#000156459016014291 Filed on March 09, 2016

View on sec.gov

Income Statement

Concept 2014 Q4 2014 Q3 2014 Q2
Revenue $196.7M $234.5M $263.0M
YoY Change -19.7% -4.1% 11.73%
Cost Of Revenue $75.60M $71.70M $61.80M
YoY Change -0.4% 6.54% -9.38%
Gross Profit $121.0M $162.8M $201.2M
YoY Change -28.4% -8.13% 20.41%
Gross Profit Margin 61.52% 69.42% 76.5%
Selling, General & Admin $31.50M $26.90M $25.50M
YoY Change 14.55% 5.91% -3.04%
% of Gross Profit 26.03% 16.52% 12.67%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $130.9M $128.7M $128.2M
YoY Change -5.56% 23.63% 28.33%
% of Gross Profit 108.18% 79.05% 63.72%
Operating Expenses $162.4M $155.6M $153.7M
YoY Change -2.23% 20.06% 21.79%
Operating Profit -$30.54M $20.98M $34.40M
YoY Change -5010.45% -34.36% -36.08%
Interest Expense -$9.300M -$5.800M -$32.40M
YoY Change -56.34% -83.19% 422.58%
% of Operating Profit -27.64% -94.18%
Other Income/Expense, Net $0.00 $200.0K
YoY Change 100.0%
Pretax Income -$50.70M $1.600M $15.11M
YoY Change 174.05% -92.8% -56.6%
Income Tax -$17.30M $900.0K $5.273M
% Of Pretax Income 56.25% 34.9%
Net Earnings -$33.37M $684.0K $9.837M
YoY Change 180.76% -95.18% -56.08%
Net Earnings / Revenue -16.97% 0.29% 3.74%
Basic Earnings Per Share
Diluted Earnings Per Share -$441.2K $9.259K $128.1K
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept 2014 Q4 2014 Q3 2014 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments $23.70M $17.20M $23.80M
YoY Change 50.0% 13.16% 155.91%
Cash & Equivalents $23.67M $17.22M $23.85M
Short-Term Investments
Other Short-Term Assets $6.119M $32.60M $38.60M
YoY Change -79.6% -33.87% 3.76%
Inventory
Prepaid Expenses
Receivables $67.24M $130.5M $121.0M
Other Receivables $0.00 $100.0K $100.0K
Total Short-Term Assets $170.9M $180.4M $183.6M
YoY Change -1.56% -0.44% -3.16%
LONG-TERM ASSETS
Property, Plant & Equipment $2.494B $2.438B $2.324B
YoY Change 9.58% 11.31% 6.66%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $9.307M $33.40M $18.64M
YoY Change -54.5% -35.52% -63.94%
Total Long-Term Assets $2.519B $2.472B $2.366B
YoY Change 7.92% 10.22% 6.09%
TOTAL ASSETS
Total Short-Term Assets $170.9M $180.4M $183.6M
Total Long-Term Assets $2.519B $2.472B $2.366B
Total Assets $2.690B $2.652B $2.550B
YoY Change 7.27% 9.42% 5.36%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $194.1M $159.6M $140.5M
YoY Change 33.67% 22.77% 14.13%
Accrued Expenses $17.38M $39.00M $31.30M
YoY Change -37.94% -8.02% 131.84%
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due $0.00
YoY Change
Total Short-Term Liabilities $284.5M $352.2M $280.9M
YoY Change -2.94% 11.0% 8.21%
LONG-TERM LIABILITIES
Long-Term Debt $1.352B $1.261B $1.224B
YoY Change 12.17% 19.72% 11.35%
Other Long-Term Liabilities $13.69M $301.9M $301.3M
YoY Change 2.26% 6.68% -4.59%
Total Long-Term Liabilities $1.366B $1.563B $1.224B
YoY Change 12.06% 16.96% -13.5%
TOTAL LIABILITIES
Total Short-Term Liabilities $284.5M $352.2M $280.9M
Total Long-Term Liabilities $1.366B $1.563B $1.224B
Total Liabilities $1.650B $2.102B $1.505B
YoY Change 9.15% 14.81% -18.1%
SHAREHOLDERS EQUITY
Retained Earnings $118.9M
YoY Change -26.25%
Common Stock $414.6M
YoY Change 2.73%
Preferred Stock
YoY Change
Treasury Stock (at cost) $24.17M
YoY Change 0.0%
Treasury Stock Shares $2.869M
Shareholders Equity $509.3M $550.2M $553.4M
YoY Change
Total Liabilities & Shareholders Equity $2.690B $2.652B $2.550B
YoY Change 7.27% 9.42% 5.36%

Cashflow Statement

Concept 2014 Q4 2014 Q3 2014 Q2
OPERATING ACTIVITIES
Net Income -$33.37M $684.0K $9.837M
YoY Change 180.76% -95.18% -56.08%
Depreciation, Depletion And Amortization $130.9M $128.7M $128.2M
YoY Change -5.56% 23.63% 28.33%
Cash From Operating Activities $55.00M $145.3M $138.4M
YoY Change -36.71% -18.55% 8.46%
INVESTING ACTIVITIES
Capital Expenditures -$171.6M -$171.7M -$119.1M
YoY Change 33.02% 38.24% -27.16%
Acquisitions
YoY Change
Other Investing Activities $31.50M -$9.500M -$39.20M
YoY Change -146.74% -306.52%
Cash From Investing Activities -$140.0M -$181.3M -$158.3M
YoY Change -28.68% 51.46% -3.18%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 91.40M 29.30M 23.40M
YoY Change -16.91% -155.39% -29.09%
NET CHANGE
Cash From Operating Activities 55.00M 145.3M 138.4M
Cash From Investing Activities -140.0M -181.3M -158.3M
Cash From Financing Activities 91.40M 29.30M 23.40M
Net Change In Cash 6.400M -6.700M 3.500M
YoY Change 966.67% -215.52% -220.69%
FREE CASH FLOW
Cash From Operating Activities $55.00M $145.3M $138.4M
Capital Expenditures -$171.6M -$171.7M -$119.1M
Free Cash Flow $226.6M $317.0M $257.5M
YoY Change 4.96% 4.76% -11.54%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2014 us-gaap Payments To Explore And Develop Oil And Gas Properties
PaymentsToExploreAndDevelopOilAndGasProperties
554378000
CY2013 us-gaap Payments To Explore And Develop Oil And Gas Properties
PaymentsToExploreAndDevelopOilAndGasProperties
551954000
CY2015 us-gaap Proceeds From Sales Of Assets Investing Activities
ProceedsFromSalesOfAssetsInvestingActivities
372939000
CY2013 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
4034000
CY2014Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
8068935000
CY2015Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
6933247000
CY2015Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
11922000
CY2014Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
17377000
CY2014Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
5575078000
CY2015Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
990049000
CY2014Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
2493857000
CY2014Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
36003000
CY2015Q4 us-gaap Value Of Properties Other Than That Attributable To Proved Reserves
ValueOfPropertiesOtherThanThatAttributableToProvedReserves
18595000
CY2014Q4 us-gaap Value Of Properties Other Than That Attributable To Proved Reserves
ValueOfPropertiesOtherThanThatAttributableToProvedReserves
109824000
CY2015Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.00001
CY2014Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.00001
CY2015Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000
CY2014Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
20000000
CY2015Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0
CY2014Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0
CY2015Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.00001
CY2014Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.00001
CY2015Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
118330000
CY2014Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
118330000
CY2015Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
79375662
CY2014Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
78768588
CY2015Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
76506489
CY2014Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
75899415
CY2015Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
2869173
CY2014Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
2869173
CY2015Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
85414000
CY2014Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
23666000
CY2015Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
35005000
CY2014Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
67242000
CY2015Q4 us-gaap Oil And Gas Joint Interest Billing Receivables
OilAndGasJointInterestBillingReceivables
22012000
CY2014Q4 us-gaap Oil And Gas Joint Interest Billing Receivables
OilAndGasJointInterestBillingReceivables
43645000
CY2015Q4 us-gaap Receivables Net Current
ReceivablesNetCurrent
57017000
CY2014Q4 us-gaap Receivables Net Current
ReceivablesNetCurrent
110887000
CY2015Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
26879000
CY2014Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
36347000
CY2015Q4 us-gaap Assets Current
AssetsCurrent
169310000
CY2014Q4 us-gaap Assets Current
AssetsCurrent
170900000
CY2015Q4 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
7902494000
CY2014Q4 us-gaap Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
8045666000
CY2015Q4 us-gaap Furniture And Fixtures Gross
FurnitureAndFixturesGross
20802000
CY2014Q4 us-gaap Furniture And Fixtures Gross
FurnitureAndFixturesGross
23269000
CY2015Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
7923296000
CY2015Q4 us-gaap Deferred Tax Assets Net Noncurrent
DeferredTaxAssetsNetNoncurrent
27595000
CY2015Q4 us-gaap Restricted Cash And Investments Noncurrent
RestrictedCashAndInvestmentsNoncurrent
15606000
CY2014Q4 us-gaap Restricted Cash And Investments Noncurrent
RestrictedCashAndInvestmentsNoncurrent
15444000
CY2015Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
5462000
CY2014Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
9307000
CY2015Q4 us-gaap Assets
Assets
1208022000
CY2014Q4 us-gaap Assets
Assets
2689508000
CY2015Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
109797000
CY2014Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
194109000
CY2015Q4 us-gaap Oil And Gas Sales Payable Current
OilAndGasSalesPayableCurrent
21439000
CY2014Q4 us-gaap Oil And Gas Sales Payable Current
OilAndGasSalesPayableCurrent
37009000
CY2015Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
84335000
CY2015Q4 us-gaap Liabilities Current
LiabilitiesCurrent
227493000
CY2014Q4 us-gaap Liabilities Current
LiabilitiesCurrent
284498000
CY2015Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
1196855000
CY2014Q4 us-gaap Long Term Debt Noncurrent
LongTermDebtNoncurrent
1352120000
CY2015Q4 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
293987000
CY2014Q4 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
354565000
CY2014Q4 us-gaap Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
175326000
CY2015Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
16178000
CY2014Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
13691000
CY2015Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2014Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2015Q4 us-gaap Preferred Stock Value
PreferredStockValue
CY2014Q4 us-gaap Preferred Stock Value
PreferredStockValue
CY2015Q4 us-gaap Common Stock Value
CommonStockValue
1000
CY2014Q4 us-gaap Common Stock Value
CommonStockValue
1000
CY2015Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
423499000
CY2014Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
414580000
CY2015Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-925824000
CY2014Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
118894000
CY2015Q4 us-gaap Treasury Stock Value
TreasuryStockValue
24167000
CY2014Q4 us-gaap Treasury Stock Value
TreasuryStockValue
24167000
CY2015Q4 us-gaap Stockholders Equity
StockholdersEquity
-526491000
CY2014Q4 us-gaap Stockholders Equity
StockholdersEquity
509308000
CY2015Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
1208022000
CY2014Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
2689508000
CY2012Q4 us-gaap Stockholders Equity
StockholdersEquity
541187000
CY2013 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
11525000
CY2013 us-gaap Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
2370000
CY2013 us-gaap Stockholders Equity Other
StockholdersEquityOther
-2208000
CY2013Q4 us-gaap Stockholders Equity
StockholdersEquity
540610000
CY2014 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
14744000
CY2014 us-gaap Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
848000
CY2014 us-gaap Stockholders Equity Other
StockholdersEquityOther
-3277000
CY2015 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
10242000
CY2015 us-gaap Adjustments Related To Tax Withholding For Share Based Compensation
AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
674000
CY2015 us-gaap Stockholders Equity Other
StockholdersEquityOther
-649000
CY2013 us-gaap Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
451529000
CY2013 us-gaap Amortization Of Financing Costs And Discounts
AmortizationOfFinancingCostsAndDiscounts
1645000
CY2013 us-gaap Share Based Compensation
ShareBasedCompensation
11525000
CY2015 wti Cash Payments Receipts On Derivative Settlements
CashPaymentsReceiptsOnDerivativeSettlements
-6703000
CY2014 wti Cash Payments Receipts On Derivative Settlements
CashPaymentsReceiptsOnDerivativeSettlements
5318000
CY2013 wti Cash Payments Receipts On Derivative Settlements
CashPaymentsReceiptsOnDerivativeSettlements
8589000
CY2013 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
30920000
CY2013 us-gaap Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
-980000
CY2015 us-gaap Increase Decrease In Other Receivables
IncreaseDecreaseInOtherReceivables
-21633000
CY2014 us-gaap Increase Decrease In Other Receivables
IncreaseDecreaseInOtherReceivables
4255000
CY2013 us-gaap Increase Decrease In Other Receivables
IncreaseDecreaseInOtherReceivables
-34257000
CY2013 us-gaap Increase Decrease In Income Taxes
IncreaseDecreaseInIncomeTaxes
44328000
CY2013 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
10044000
CY2013 us-gaap Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
81543000
CY2013 us-gaap Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
27908000
CY2013 us-gaap Net Cash Provided By Used In Operating Activities Continuing Operations
NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
562708000
CY2014 us-gaap Payments To Acquire Oil And Gas Property And Equipment
PaymentsToAcquireOilAndGasPropertyAndEquipment
72234000
CY2013 us-gaap Payments To Acquire Oil And Gas Property And Equipment
PaymentsToAcquireOilAndGasPropertyAndEquipment
82424000
CY2014 wti Increase Decrease In Operating Capital Associated With Investing Activities
IncreaseDecreaseInOperatingCapitalAssociatedWithInvestingActivities
-37450000
CY2013 wti Increase Decrease In Operating Capital Associated With Investing Activities
IncreaseDecreaseInOperatingCapitalAssociatedWithInvestingActivities
1350000
CY2013 us-gaap Proceeds From Sales Of Assets Investing Activities
ProceedsFromSalesOfAssetsInvestingActivities
21008000
CY2014 us-gaap Payments To Acquire Furniture And Fixtures
PaymentsToAcquireFurnitureAndFixtures
3340000
CY2013 us-gaap Payments To Acquire Furniture And Fixtures
PaymentsToAcquireFurnitureAndFixtures
1435000
CY2014 us-gaap Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
-592502000
CY2013 us-gaap Net Cash Provided By Used In Investing Activities Continuing Operations
NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
-616155000
CY2014 us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
556000000
CY2013 us-gaap Proceeds From Long Term Lines Of Credit
ProceedsFromLongTermLinesOfCredit
563000000
CY2014 us-gaap Repayments Of Long Term Lines Of Credit
RepaymentsOfLongTermLinesOfCredit
399000000
CY2013 us-gaap Repayments Of Long Term Lines Of Credit
RepaymentsOfLongTermLinesOfCredit
443000000
CY2015 us-gaap Proceeds From Issuance Of Subordinated Long Term Debt
ProceedsFromIssuanceOfSubordinatedLongTermDebt
297000000
CY2013 us-gaap Payments Of Dividends
PaymentsOfDividends
58846000
CY2013 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-260000
CY2013 us-gaap Net Cash Provided By Used In Financing Activities Continuing Operations
NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
57002000
CY2013 us-gaap Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
3555000
CY2012Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
12245000
CY2015 us-gaap Nature Of Operations
NatureOfOperations
<div> <p style="margin-bottom:0pt;margin-top:6pt;margin-left:1.67%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Operations </p> <p style="margin-bottom:0pt;margin-top:6pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.33%;">W&amp;T Offshore, Inc. and subsidiaries, referred to herein as &#8220;W&amp;T,&#8221; &#8220;we,&#8221; &#8220;us,&#8221; &#8220;our,&#8221; or the &#8220;Company&#8221;, is an independent oil and natural gas producer focused primarily in the Gulf of Mexico.&nbsp;&nbsp;On October 15, 2015, a substantial amount of our interest in onshore acreage was sold, which is described in Note 2.&nbsp;&nbsp;The Company is active in the exploration, development and acquisition of oil and natural gas properties.&nbsp;&nbsp;Our interest in fields, leases, structures and equipment are primarily owned by the parent company, W&amp;T Offshore, Inc. (on a stand-alone basis, the &#8220;Parent Company&#8221;) and our wholly-owned subsidiary, W &amp; T Energy VI, LLC (&#8220;Energy VI&#8221;).&nbsp;&nbsp;</p></div>
CY2015 us-gaap Use Of Estimates
UseOfEstimates
<div> <p style="margin-bottom:0pt;margin-top:18pt;margin-left:1.67%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Use of Estimates </p> <p style="margin-bottom:0pt;margin-top:6pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.33%;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, the reported amounts of revenues and expenses during the reporting periods and the reported amounts of proved oil and natural gas reserves.&nbsp;&nbsp;Actual results could differ from those estimates. </p></div>
CY2015 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<div> <p style="margin-bottom:0pt;margin-top:8pt;margin-left:1.67%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Concentration of Credit Risk </p> <p style="margin-bottom:0pt;margin-top:6pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.33%;">Our customers are primarily large integrated oil and natural gas companies and large financial institutions.&nbsp;&nbsp;Our production is sold utilizing month-to-month contracts that are based on bid prices.&nbsp;&nbsp;We also have receivables from joint interest owners on properties we operate and we may have the ability to withhold future revenue disbursements to recover amounts due us.&nbsp;&nbsp;We attempt to minimize our credit risk exposure to purchasers of our oil and natural gas, joint interest owners, derivative counterparties and other third-party entities through formal credit policies, monitoring procedures, and letters of credit or guaranties when considered necessary.&nbsp;&nbsp;We historically have not had any significant problems collecting our receivables, but with the decline in commodity prices, several oil and gas companies have filed for bankruptcy.&nbsp;&nbsp;We use the specific identification method of determining if an allowance for doubtful accounts is needed.&nbsp;&nbsp;As of December 31, 2015 and 2014, we recorded $2.5 million and $0.7 million, respectively, in the allowance for doubtful accounts.&nbsp;&nbsp;During 2015 and 2014, there was no usage of the amounts recorded for allowance for doubtful accounts.&nbsp;&nbsp;</p> <p style="margin-bottom:12pt;margin-top:12pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The following identifies customers from whom we derived 10% or more of receipts from sales of crude oil, NGLs and natural gas. </p> <div> <table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:90%;"> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:54.98%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="10" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:44%; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Year Ended December 31,</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:54.98%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Tahoma;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:11.52%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2015</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:3.7%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:11.52%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2014</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:3.7%; border-top:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:11.52%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2013</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:solid 0.75pt transparent;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:54.98%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Customer</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.7%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.7%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:9pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:54.98%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Shell Trading (US) Co.</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">50</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">%</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.7%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">47</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">%</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.7%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:9pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">48</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">%</p></td> </tr> <tr> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:54.98%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">J. P. Morgan</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:10.52%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">14</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">%</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.7%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:11.52%;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">**</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.7%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:9pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:11.52%;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">**</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> </table></div> <p style="margin-bottom:0pt;margin-top:0pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:6.67%;">&nbsp;</p> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:5%;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">** less than 10%</p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">We believe that the loss of any of the customers above would not result in a material adverse effect on our ability to market future oil and natural gas production as replacement customers could be obtained in a relatively short period of time on terms, conditions and pricing substantially similar to those currently existing. </p></div>
CY2015 us-gaap Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
<div> <p style="margin-bottom:0pt;margin-top:18pt;margin-left:1.67%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Reclassifications </p> <p style="margin-bottom:0pt;margin-top:6pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.33%;">Certain reclassifications have been made to prior periods&#8217; financial statements to conform to the current presentation as follows:&nbsp;&nbsp; Within the Consolidated Statements of Cash Flows, adjustments were made for the changes in operating assets and liabilities associated with investing activities.&nbsp;&nbsp;The adjustments resulted in Net cash provided by operating activities and Net cash used in investing activities to be decreased by $37.5 million for 2014 and increased by $1.4 million for 2013.&nbsp;&nbsp;Similar adjustments were made in the Condensed Consolidating Statements of Cash flow totaling the same amounts for the respective years.&nbsp;&nbsp;The adjustments did not affect the Consolidated Balance Sheets or the Consolidated Statements of Operations.&nbsp;&nbsp;</p></div>
CY2015 us-gaap Derivatives Reporting Of Derivative Activity
DerivativesReportingOfDerivativeActivity
<div> <p style="margin-bottom:0pt;margin-top:18pt;margin-left:1.67%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Derivative Financial Instruments </p> <p style="margin-bottom:0pt;margin-top:6pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:3.33%;">Our market risk exposure relates primarily to commodity prices and interest rates.&nbsp;&nbsp;From time to time, we use various derivative instruments to manage our exposure to commodity price risk from sales of oil and natural gas and interest rate risk from floating interest rates on our credit facility.&nbsp;&nbsp;Our derivative instruments currently consist of commodity swap contracts for oil.&nbsp;&nbsp;We do not enter into derivative instruments for speculative trading purposes. </p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Derivative instruments are recorded on the balance sheet as an asset or a liability at fair value.&nbsp;&nbsp;Changes in a derivative&#8217;s fair value are required to be recognized currently in earnings unless specific hedge accounting and documentation criteria are met at the time the derivative contract is entered into.&nbsp;&nbsp;We have elected not to designate our commodity derivatives as hedging instruments, therefore, all changes in fair value are recognized in earnings. </p></div>
CY2015Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
10036000
CY2015Q4 us-gaap Gas Imbalance Asset Liability
GasImbalanceAssetLiability
6900000
CY2014Q4 us-gaap Gas Imbalance Asset Liability
GasImbalanceAssetLiability
6400000
CY2015Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
2500000
CY2014Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
700000
us-gaap Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
0
CY2014 us-gaap Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
0
CY2014Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
7417000
CY2015Q4 wti Prepaid Insurance And Surety Bonds
PrepaidInsuranceAndSuretyBonds
7475000
CY2014Q4 wti Prepaid Insurance And Surety Bonds
PrepaidInsuranceAndSuretyBonds
13130000
CY2015Q4 us-gaap Prepaid Royalties
PrepaidRoyalties
5943000
CY2014Q4 us-gaap Prepaid Royalties
PrepaidRoyalties
9681000
CY2015Q4 us-gaap Other Assets Current
OtherAssetsCurrent
3425000
CY2014Q4 us-gaap Other Assets Current
OtherAssetsCurrent
6119000
CY2015 wti Present Value Discounted Percentage
PresentValueDiscountedPercentage
0.10
CY2015Q4 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
32400000
CY2014 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
0
CY2013 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
0
CY2015 wti Proved Undeveloped Reserves Classification Period To Be Drilled
ProvedUndevelopedReservesClassificationPeriodToBeDrilled
P5Y
CY2014 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
0
CY2013 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
0
CY2015 us-gaap Write Off Of Deferred Debt Issuance Cost
WriteOffOfDeferredDebtIssuanceCost
3200000
CY2013 us-gaap Gain Loss On Contract Termination
GainLossOnContractTermination
9100000
CY2015Q4 us-gaap Gain Loss On Sale Of Proved Property
GainLossOnSaleOfProvedProperty
0
CY2015Q4 wti Limitation Of Reserves Sold Related To Gain Loss Recognition
LimitationOfReservesSoldRelatedToGainLossRecognition
0.25
CY2008Q3 us-gaap Reinsurance Retention Policy Amount Retained
ReinsuranceRetentionPolicyAmountRetained
10000000
CY2008Q3 wti Maximum Insurance Coverage Policy Limit Due To Named Windstorms For Per Incident
MaximumInsuranceCoveragePolicyLimitDueToNamedWindstormsForPerIncident
150000000
CY2008Q3 wti Maximum Coverage Per Incident Except Property Damage
MaximumCoveragePerIncidentExceptPropertyDamage
250000000
CY2015 us-gaap Proceeds From Insurance Settlement Operating Activities
ProceedsFromInsuranceSettlementOperatingActivities
200000
CY2014 us-gaap Proceeds From Insurance Settlement Operating Activities
ProceedsFromInsuranceSettlementOperatingActivities
12200000
CY2013 us-gaap Proceeds From Insurance Settlement Operating Activities
ProceedsFromInsuranceSettlementOperatingActivities
6700000
CY2014 us-gaap Insurance Recoveries
InsuranceRecoveries
161200000
CY2014Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
390568000
CY2015 wti Asset Retirement Obligations Disposition Of Properties
AssetRetirementObligationsDispositionOfProperties
8581000
CY2015 wti Asset Retirement Obligations Liabilities Assumed Through Acquisition
AssetRetirementObligationsLiabilitiesAssumedThroughAcquisition
2944000
CY2015 us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
4780000
CY2015 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
463000
CY2014 wti Asset Retirement Obligations Liabilities Assumed Through Acquisition
AssetRetirementObligationsLiabilitiesAssumedThroughAcquisition
21820000
CY2014 us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
3258000
CY2014 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
64748000
CY2014Q4 us-gaap Derivative Number Of Instruments Held
DerivativeNumberOfInstrumentsHeld
0
CY2014Q4 us-gaap Long Term Line Of Credit
LongTermLineOfCredit
447000000
CY2015Q4 us-gaap Long Term Debt
LongTermDebt
1196855000
CY2014Q4 us-gaap Long Term Debt
LongTermDebt
1352120000
CY2015Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
0
CY2015Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
0
CY2015Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
0
CY2015Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
900000000
CY2015Q4 us-gaap Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
300000000
CY2015Q4 wti Minimum Borrowing Base Amount Allowed Before Senior Note Or Term Loan Purchase
MinimumBorrowingBaseAmountAllowedBeforeSeniorNoteOrTermLoanPurchase
200000000
CY2015Q4 wti Letter Of Credit Maximum Amount Outstanding Prior To Repurchase Of Senior Note Or Term Loans
LetterOfCreditMaximumAmountOutstandingPriorToRepurchaseOfSeniorNoteOrTermLoans
100000000
CY2015 wti Share Based Compensation Performance Awards Grant Performance Period
ShareBasedCompensationPerformanceAwardsGrantPerformancePeriod
P10Y
CY2015 wti Annual Incentive Award Payment Period
AnnualIncentiveAwardPaymentPeriod
P90D
CY2013 wti Percentage Of Restricted Stock Units Granted During Period Not Subject To Performance Criteria
PercentageOfRestrictedStockUnitsGrantedDuringPeriodNotSubjectToPerformanceCriteria
0.03
CY2013 wti Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Vesting Month And Year
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVestingMonthAndYear
2015-12
CY2015 wti Cash Based Compensation Payment Period After Achievement Of Financial Condition
CashBasedCompensationPaymentPeriodAfterAchievementOfFinancialCondition
P30D
CY2014 wti Cash Based Compensation Payment Period
CashBasedCompensationPaymentPeriod
P75D
CY2015 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
4000000
CY2015Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
4239548
CY2015 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
3585000
CY2014 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
5160000
CY2015 wti Incentive Compensation Charged To Operating Income Loss
IncentiveCompensationChargedToOperatingIncomeLoss
10373000
CY2014 wti Incentive Compensation Charged To Operating Income Loss
IncentiveCompensationChargedToOperatingIncomeLoss
24979000
CY2013 wti Incentive Compensation Charged To Operating Income Loss
IncentiveCompensationChargedToOperatingIncomeLoss
23824000
CY2015 us-gaap Defined Contribution Plan Employer Matching Contribution Percent Of Match
DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
1.00
CY2014 us-gaap Defined Contribution Plan Employer Matching Contribution Percent Of Match
DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
1.00
CY2013 us-gaap Defined Contribution Plan Employer Matching Contribution Percent Of Match
DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
1.00
CY2015 us-gaap Defined Contribution Plan Maximum Annual Contributions Per Employee Percent
DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
0.06
CY2014 us-gaap Defined Contribution Plan Maximum Annual Contributions Per Employee Percent
DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
0.06
CY2013 us-gaap Defined Contribution Plan Maximum Annual Contributions Per Employee Percent
DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
0.06
CY2015 us-gaap Deferred Compensation Arrangement With Individual Requisite Service Period1
DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1
P5Y
CY2015 us-gaap Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage
DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
0.20
CY2015 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
2300000
CY2014 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
2400000
CY2013 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
2100000
CY2015 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
288000
CY2014 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
301000
CY2013 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
-2146000
CY2015 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-436696000
CY2014 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-5642000
CY2013 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
28033000
CY2015 us-gaap Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
2940000
CY2015 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-2343000
CY2014 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
263000
CY2013 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
343000
CY2015 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
232925000
CY2015 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
190000
CY2014 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
920000
CY2013 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
398000
CY2015 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.350
CY2014 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.350
CY2013 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.350
CY2015 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
-0.002
CY2015 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.002
CY2014 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
-0.016
CY2013 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.004
CY2015 us-gaap Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
-0.187
CY2014 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.057
CY2013 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
0.005
CY2015 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.163
CY2014 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.277
CY2013 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.359
CY2015Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
40287000
CY2014Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
518566000
CY2015Q4 us-gaap Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
2697000
CY2015Q4 us-gaap Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
3000000
CY2014Q4 us-gaap Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
5019000
CY2015Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
45984000
CY2014Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
523585000
CY2015Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
20486000
CY2014Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
20486000
CY2015Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
133018000
CY2014Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
137597000
CY2015Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards Domestic
DeferredTaxAssetsOperatingLossCarryforwardsDomestic
145733000
CY2014Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards Domestic
DeferredTaxAssetsOperatingLossCarryforwardsDomestic
180024000
CY2015Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
5068000
CY2014Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
5008000
CY2015Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
237275000
CY2014Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
4255000
CY2014Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses
3559000
CY2015Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
4245000
CY2014Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
5042000
CY2015Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
2304000
CY2014Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
798000
CY2015Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
73579000
CY2014Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
348259000
CY2015Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
27595000
CY2014Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
175326000
CY2013 us-gaap Income Taxes Paid
IncomeTaxesPaid
3000000
CY2013Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
9482000
CY2014 us-gaap Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
3000000
CY2013 us-gaap Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
59126000
CY2015 us-gaap Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
232900000
CY2015Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
9482000
CY2014Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
9482000
CY2014 us-gaap Participating Securities Distributed And Undistributed Earnings Loss Basic
ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic
269000
CY2013 us-gaap Participating Securities Distributed And Undistributed Earnings Loss Basic
ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic
303000
CY2015 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-1044718000
CY2014 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-11930000
CY2013 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
51019000
CY2015 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
75931000
CY2014 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
75609000
CY2013 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
75239000
CY2015 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
2195000
CY2014 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
2097000
CY2015 us-gaap Interest Paid Net
InterestPaidNet
92622000
CY2014 us-gaap Interest Paid Net
InterestPaidNet
77607000
CY2013 us-gaap Interest Paid Net
InterestPaidNet
73909000
CY2015 us-gaap Income Taxes Paid
IncomeTaxesPaid
390000
CY2015 us-gaap Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
90000
CY2014 us-gaap Dividends Share Based Compensation Cash
DividendsShareBasedCompensationCash
431000
CY2013 us-gaap Dividends Share Based Compensation Cash
DividendsShareBasedCompensationCash
466000
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
1600000
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
1600000
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
1700000
CY2014Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
34403000
CY2014Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
20983000
CY2014Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
-30543000
CY2015Q4 us-gaap Other Commitment Due After Fifth Year
OtherCommitmentDueAfterFifthYear
30400000
CY2014Q1 wti Under Payment Of Royalty
UnderPaymentOfRoyalty
30000
CY2014Q1 wti Under Payment Of Royalty Percentage
UnderPaymentOfRoyaltyPercentage
0.000045
CY2015Q4 us-gaap Other Commitment Due In Fourth Year
OtherCommitmentDueInFourthYear
5000000
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
1800000
CY2015Q4 us-gaap Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
5700000
CY2015 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
3300000
CY2014 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
3200000
CY2013 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
2600000
CY2015 us-gaap Unrecorded Unconditional Purchase Obligation Purchases
UnrecordedUnconditionalPurchaseObligationPurchases
73000000
CY2015Q4 us-gaap Unrecorded Unconditional Purchase Obligation Balance On First Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
6000000
CY2015Q4 us-gaap Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
4000000
CY2015Q4 us-gaap Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary
5000000
CY2015Q4 us-gaap Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary
3000000
CY2015Q4 us-gaap Unrecorded Unconditional Purchase Obligation Due After Five Years
UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears
12000000
CY2015Q4 us-gaap Unrecorded Unconditional Purchase Obligation Balance Sheet Amount
UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
103000000
CY2015 us-gaap Lease Expiration Date1
LeaseExpirationDate1
2023-12-31
CY2015 wti Expense Relating To Surety Bonds
ExpenseRelatingToSuretyBonds
5500000
CY2014 wti Expense Relating To Surety Bonds
ExpenseRelatingToSuretyBonds
4100000
CY2013 wti Expense Relating To Surety Bonds
ExpenseRelatingToSuretyBonds
5000000
CY2015Q4 us-gaap Other Commitment Due In Next Twelve Months
OtherCommitmentDueInNextTwelveMonths
5800000
CY2015Q4 us-gaap Other Commitment Due In Second Year
OtherCommitmentDueInSecondYear
5900000
CY2015Q4 us-gaap Other Commitment Due In Third Year
OtherCommitmentDueInThirdYear
5300000
CY2014Q1 us-gaap Loss Contingency Damages Awarded Value
LossContingencyDamagesAwardedValue
2300000
CY2014Q1 wti Loss Contingency Damages Awarded Revised Value
LossContingencyDamagesAwardedRevisedValue
1100000
CY2014Q4 us-gaap Accrued Liabilities Current And Noncurrent
AccruedLiabilitiesCurrentAndNoncurrent
0
CY2015Q4 us-gaap Accrued Liabilities Current And Noncurrent
AccruedLiabilitiesCurrentAndNoncurrent
0
CY2014Q4 us-gaap Loss Contingency Range Of Possible Loss Minimum
LossContingencyRangeOfPossibleLossMinimum
0
CY2014Q4 us-gaap Loss Contingency Range Of Possible Loss Maximum
LossContingencyRangeOfPossibleLossMaximum
32000000
CY2015Q4 wti Claims Submitted Related To Removal Of Wreck Expenses
ClaimsSubmittedRelatedToRemovalOfWreckExpenses
43000000
CY2010Q4 us-gaap Gain Contingency Unrecorded Amount
GainContingencyUnrecordedAmount
4700000
CY2015 us-gaap Loss Contingency New Claims Filed Number
LossContingencyNewClaimsFiledNumber
4
CY2015Q4 us-gaap Loss Contingency Accrual At Carrying Value
LossContingencyAccrualAtCarryingValue
1000000
CY2014Q1 us-gaap Revenues
Revenues
254516000
CY2014Q2 us-gaap Revenues
Revenues
262994000
CY2014Q3 us-gaap Revenues
Revenues
234521000
CY2014Q4 us-gaap Revenues
Revenues
196677000
CY2014Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
37225000
CY2014Q1 us-gaap Net Income Loss
NetIncomeLoss
11189000
CY2014Q2 us-gaap Net Income Loss
NetIncomeLoss
9837000
CY2014Q3 us-gaap Net Income Loss
NetIncomeLoss
684000
CY2014Q4 us-gaap Net Income Loss
NetIncomeLoss
-33371000
CY2014Q1 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
0.15
CY2014Q2 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
0.13
CY2014Q3 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
0.01
CY2014Q4 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-0.44
CY2015Q1 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
260400000
CY2015Q2 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
252800000
CY2015Q3 us-gaap Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
441600000
CY2015 wti Bonds To Be Secured Date
BondsToBeSecuredDate
2016-03-29
CY2015Q4 wti Percentage Of Subsidiary Owned By Parent
PercentageOfSubsidiaryOwnedByParent
1.00
CY2015Q4 us-gaap Capitalized Costs Mineral Interests In Proved Properties
CapitalizedCostsMineralInterestsInProvedProperties
7882300000
CY2014Q4 us-gaap Capitalized Costs Mineral Interests In Proved Properties
CapitalizedCostsMineralInterestsInProvedProperties
7924200000
CY2013Q4 us-gaap Capitalized Costs Mineral Interests In Proved Properties
CapitalizedCostsMineralInterestsInProvedProperties
7207100000
CY2015Q4 us-gaap Capitalized Costs Mineral Interests In Unproved Properties
CapitalizedCostsMineralInterestsInUnprovedProperties
20200000
CY2014Q4 us-gaap Capitalized Costs Mineral Interests In Unproved Properties
CapitalizedCostsMineralInterestsInUnprovedProperties
121500000
CY2013Q4 us-gaap Capitalized Costs Mineral Interests In Unproved Properties
CapitalizedCostsMineralInterestsInUnprovedProperties
132000000
CY2015Q4 us-gaap Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
6916200000
CY2014Q4 us-gaap Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
5557600000
CY2013Q4 us-gaap Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
5069200000
CY2015Q4 us-gaap Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
986300000
CY2014Q4 us-gaap Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
2488100000
CY2013Q4 us-gaap Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
2269900000
CY2015Q4 us-gaap Acquisition Costs Cumulative
AcquisitionCostsCumulative
13900000
CY2015Q4 wti Capitalized Interest Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedInterestOfUnprovedPropertiesExcludedFromAmortizationCumulative
4700000
CY2015Q4 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
18600000
CY2014 us-gaap Acquisition Costs
AcquisitionCosts
500000
CY2013 us-gaap Acquisition Costs
AcquisitionCosts
4900000
CY2012 us-gaap Acquisition Costs
AcquisitionCosts
8500000
CY2015 wti Capitalized Interest Of Unproved Properties Excluded From Amortization
CapitalizedInterestOfUnprovedPropertiesExcludedFromAmortization
1500000
CY2014 wti Capitalized Interest Of Unproved Properties Excluded From Amortization
CapitalizedInterestOfUnprovedPropertiesExcludedFromAmortization
1200000
CY2013 wti Capitalized Interest Of Unproved Properties Excluded From Amortization
CapitalizedInterestOfUnprovedPropertiesExcludedFromAmortization
900000
CY2012 wti Capitalized Interest Of Unproved Properties Excluded From Amortization
CapitalizedInterestOfUnprovedPropertiesExcludedFromAmortization
1100000
CY2015 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
1500000
CY2014 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
1700000
CY2013 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
5800000
CY2012 us-gaap Capitalized Costs Of Unproved Properties Excluded From Amortization
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization
9600000
CY2015 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
15600000
CY2014 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
111500000
CY2013 us-gaap Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
96900000
CY2015 us-gaap Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
152400000
CY2014 us-gaap Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
411100000
CY2013 us-gaap Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
215300000
CY2015 us-gaap Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
65500000
CY2014 us-gaap Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
198700000
CY2013 us-gaap Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
352900000
CY2015 us-gaap Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
100000
CY2014 us-gaap Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
3100000
CY2013 us-gaap Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
26300000
CY2015 us-gaap Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
233600000
CY2014 us-gaap Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
724400000
CY2013 us-gaap Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
691400000
CY2015 us-gaap Accretion Of Discount
AccretionOfDiscount
150600000
CY2014 us-gaap Accretion Of Discount
AccretionOfDiscount
180600000
CY2013 us-gaap Accretion Of Discount
AccretionOfDiscount
202200000
CY2015 us-gaap Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
600800000
CY2014 us-gaap Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
-11400000
CY2013 us-gaap Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
56600000
CY2015 us-gaap Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
6000000
CY2015 wti Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions
AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions
-400000
CY2014 wti Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions
AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions
88000000
CY2013 wti Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions
AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions
50600000
CY2015Q4 wti Seismic Costs
SeismicCosts
3200000
CY2014Q4 wti Seismic Costs
SeismicCosts
9000000
CY2013Q4 wti Seismic Costs
SeismicCosts
8900000
CY2014 us-gaap Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
650900000
CY2014 us-gaap Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
86700000
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
209500000
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
985400000
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
1129400000
CY2015Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
613900000
CY2014Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
1702800000
CY2013Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
1674600000
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
0
CY2012Q4 us-gaap Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
1846400000
CY2015 us-gaap Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
289100000
CY2015 wti Geological And Geophysical Costs
GeologicalAndGeophysicalCosts
5700000
CY2014 wti Geological And Geophysical Costs
GeologicalAndGeophysicalCosts
7300000
CY2013 wti Geological And Geophysical Costs
GeologicalAndGeophysicalCosts
5900000
CY2015 wti Depreciation Depletion Amortization And Accretion Per Boe
DepreciationDepletionAmortizationAndAccretionPerBoe
23.11
CY2014 wti Depreciation Depletion Amortization And Accretion Per Boe
DepreciationDepletionAmortizationAndAccretionPerBoe
28.98
CY2013 wti Depreciation Depletion Amortization And Accretion Per Boe
DepreciationDepletionAmortizationAndAccretionPerBoe
25.10
CY2015 wti Percentage Of Non Operated Proved Developed Non Producing Reserves
PercentageOfNonOperatedProvedDevelopedNonProducingReserves
0.27
CY2015 wti Percentage Of Non Operated Proved Undeveloped Reserves
PercentageOfNonOperatedProvedUndevelopedReserves
0.12
CY2015Q4 us-gaap Proved Undeveloped Reserve Boe1
ProvedUndevelopedReserveBOE1
1.2
CY2015 wti Percentage Of Proved Undeveloped Reserves Expected To Be Developed
PercentageOfProvedUndevelopedReservesExpectedToBeDeveloped
0.16
CY2014 wti Wells Expected To Be Drilled Year
WellsExpectedToBeDrilledYear
2020
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
2296700000
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
7258500000
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
7376700000
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
840100000
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
2224500000
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
2142800000
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
161400000
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
922000000
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
1001400000
CY2015Q4 wti Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Dismantlement And Abandonment Cost
FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDismantlementAndAbandonmentCost
471800000
CY2014Q4 wti Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Dismantlement And Abandonment Cost
FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDismantlementAndAbandonmentCost
475400000
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
948400000
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
986900000
CY2015Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
823400000
CY2014Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
2688200000
CY2013Q4 us-gaap Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
2804000000
CY2013 us-gaap Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
686100000
CY2015 us-gaap Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
-1455600000
CY2015 us-gaap Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
65300000
CY2014 us-gaap Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
309600000
CY2013 us-gaap Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
393800000
CY2015 us-gaap Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
-8500000
CY2014 us-gaap Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
-56400000
CY2013 us-gaap Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
-91100000
CY2015 us-gaap Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
158900000
CY2014 us-gaap Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
263100000
CY2013 us-gaap Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
262100000
CY2015 us-gaap Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
137900000
CY2014 us-gaap Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
118600000
CY2013 us-gaap Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
-91600000
CY2013 us-gaap Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
79600000
CY2015 us-gaap Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
401400000
CY2013 us-gaap Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
53100000
CY2015 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
-53800000
CY2014 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
66900000
CY2013 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
-179000000
CY2015 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
-1088900000
CY2014 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
28200000
CY2013 us-gaap Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
-171800000

Files In Submission

Name View Source Status
0001564590-16-014291-index-headers.html Edgar Link pending
0001564590-16-014291-index.html Edgar Link pending
0001564590-16-014291.txt Edgar Link pending
0001564590-16-014291-xbrl.zip Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
g201603091947312669396.jpg Edgar Link pending
g201603091947430897904.jpg Edgar Link pending
g201603091947432457904.jpg Edgar Link pending
g201603091947432777904.jpg Edgar Link pending
g201603091948091579419.jpg Edgar Link pending
g201603091948125019420.jpg Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R100.htm Edgar Link pending
R101.htm Edgar Link pending
R102.htm Edgar Link pending
R103.htm Edgar Link pending
R104.htm Edgar Link pending
R105.htm Edgar Link pending
R106.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R76.htm Edgar Link pending
R77.htm Edgar Link pending
R78.htm Edgar Link pending
R79.htm Edgar Link pending
R8.htm Edgar Link pending
R80.htm Edgar Link pending
R81.htm Edgar Link pending
R82.htm Edgar Link pending
R83.htm Edgar Link pending
R84.htm Edgar Link pending
R85.htm Edgar Link pending
R86.htm Edgar Link pending
R87.htm Edgar Link pending
R88.htm Edgar Link pending
R89.htm Edgar Link pending
R9.htm Edgar Link pending
R90.htm Edgar Link pending
R91.htm Edgar Link pending
R92.htm Edgar Link pending
R93.htm Edgar Link pending
R94.htm Edgar Link pending
R95.htm Edgar Link pending
R96.htm Edgar Link pending
R97.htm Edgar Link pending
R98.htm Edgar Link pending
R99.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending
wti-10k_20151231.htm Edgar Link pending
wti-20151231.xml Edgar Link completed
wti-20151231.xsd Edgar Link pending
wti-20151231_cal.xml Edgar Link unprocessable
wti-20151231_def.xml Edgar Link unprocessable
wti-20151231_lab.xml Edgar Link unprocessable
wti-20151231_pre.xml Edgar Link unprocessable
wti-ex1023_277.htm Edgar Link pending
wti-ex121_13.htm Edgar Link pending
wti-ex211_11.htm Edgar Link pending
wti-ex231_10.htm Edgar Link pending
wti-ex232_6.htm Edgar Link pending
wti-ex311_8.htm Edgar Link pending
wti-ex312_12.htm Edgar Link pending
wti-ex321_7.htm Edgar Link pending
wti-ex991_278.htm Edgar Link pending