2019 Q1 Form 10-K Financial Statement
#000156459019005457 Filed on February 28, 2019
Income Statement
| Concept | 2019 Q1 | 2018 Q4 | 2018 Q3 |
|---|---|---|---|
| Revenue | $116.1M | $143.4M | $153.5M |
| YoY Change | -13.51% | 11.09% | 39.15% |
| Cost Of Revenue | $43.50M | $43.40M | $37.40M |
| YoY Change | 18.21% | 17.62% | 6.55% |
| Gross Profit | $72.60M | $100.0M | $116.0M |
| YoY Change | -25.46% | 8.46% | 54.46% |
| Gross Profit Margin | 62.54% | 69.72% | 75.59% |
| Selling, General & Admin | $20.90M | $22.00M | $22.20M |
| YoY Change | 1.46% | 12.24% | 10.45% |
| % of Gross Profit | 28.79% | 22.0% | 19.14% |
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $33.77M | $35.10M | $37.00M |
| YoY Change | -11.38% | -9.77% | 1.65% |
| % of Gross Profit | 46.51% | 35.1% | 31.9% |
| Operating Expenses | $54.70M | $57.00M | $59.20M |
| YoY Change | -6.81% | -2.4% | 4.59% |
| Operating Profit | -$30.98M | $102.7M | $57.15M |
| YoY Change | -179.96% | 209.58% | 263.99% |
| Interest Expense | $16.28M | $46.20M | $10.73M |
| YoY Change | 48.53% | -478.69% | -7.16% |
| % of Operating Profit | 45.0% | 18.77% | |
| Other Income/Expense, Net | -$331.0K | $2.800M | -$18.00K |
| YoY Change | -199.4% | 833.33% | -143.9% |
| Pretax Income | -$47.59M | $139.0M | $46.40M |
| YoY Change | -271.5% | 534.7% | 1008.24% |
| Income Tax | $200.0K | -$300.0K | $142.0K |
| % Of Pretax Income | -0.22% | 0.31% | |
| Net Earnings | -$47.76M | $138.8M | $46.26M |
| YoY Change | -272.8% | 494.24% | -3666.69% |
| Net Earnings / Revenue | -41.14% | 96.81% | 30.14% |
| Basic Earnings Per Share | |||
| Diluted Earnings Per Share | -$340.2K | $996.4K | $333.1K |
| COMMON SHARES | |||
| Basic Shares Outstanding | 140.6M | 139.2M | 139.2M |
| Diluted Shares Outstanding |
Balance Sheet
| Concept | 2019 Q1 | 2018 Q4 | 2018 Q3 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $86.10M | $33.30M | $339.1M |
| YoY Change | -34.12% | -66.4% | 219.3% |
| Cash & Equivalents | $86.12M | $33.29M | $339.1M |
| Short-Term Investments | |||
| Other Short-Term Assets | $3.353M | $786.0K | $1.289M |
| YoY Change | -83.4% | -58.32% | -34.8% |
| Inventory | |||
| Prepaid Expenses | |||
| Receivables | $58.90M | $47.80M | $49.48M |
| Other Receivables | $54.10M | $54.10M | $65.20M |
| Total Short-Term Assets | $233.2M | $226.2M | $490.0M |
| YoY Change | -16.36% | 18.63% | 152.7% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $518.6M | $515.4M | $522.8M |
| YoY Change | -9.56% | -10.98% | -5.86% |
| Goodwill | |||
| YoY Change | |||
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | |||
| YoY Change | |||
| Other Assets | $90.60M | $91.55M | $69.01M |
| YoY Change | 0.67% | 51.59% | -19.84% |
| Total Long-Term Assets | $609.3M | $622.7M | $612.4M |
| YoY Change | -8.15% | -13.15% | -11.7% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $233.2M | $226.2M | $490.0M |
| Total Long-Term Assets | $609.3M | $622.7M | $612.4M |
| Total Assets | $842.5M | $848.9M | $1.102B |
| YoY Change | -10.58% | -6.47% | 24.22% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $71.40M | $82.07M | $95.50M |
| YoY Change | -7.75% | 3.01% | 32.27% |
| Accrued Expenses | $31.50M | $29.61M | $24.20M |
| YoY Change | 35.23% | 65.15% | -8.85% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $0.00 | $0.00 | $0.00 |
| YoY Change | |||
| Long-Term Debt Due | $0.00 | $224.8M | |
| YoY Change | -100.0% | 1916.69% | |
| Total Short-Term Liabilities | $218.6M | $186.3M | $446.8M |
| YoY Change | 27.38% | 10.72% | 180.24% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $634.0M | $633.5M | $759.1M |
| YoY Change | -34.47% | -34.63% | -22.75% |
| Other Long-Term Liabilities | $73.14M | $68.69M | $356.2M |
| YoY Change | 9.18% | 2.73% | 431.4% |
| Total Long-Term Liabilities | $707.1M | $702.2M | $1.115B |
| YoY Change | -31.64% | -32.22% | 1563.86% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $218.6M | $186.3M | $446.8M |
| Total Long-Term Liabilities | $707.1M | $702.2M | $1.115B |
| Total Liabilities | $1.215B | $888.5M | $1.562B |
| YoY Change | 0.76% | -26.22% | 589.78% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | -$894.1M | -$846.3M | |
| YoY Change | -16.25% | -22.72% | |
| Common Stock | $545.6M | $545.7M | |
| YoY Change | -0.26% | -0.02% | |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $24.17M | $24.17M | |
| YoY Change | 0.0% | 0.0% | |
| Treasury Stock Shares | $2.869M | $2.869M | $2.869M |
| Shareholders Equity | -$372.6M | -$324.8M | -$459.8M |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $842.5M | $848.9M | $1.102B |
| YoY Change | -10.58% | -6.47% | 24.22% |
Cashflow Statement
| Concept | 2019 Q1 | 2018 Q4 | 2018 Q3 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | -$47.76M | $138.8M | $46.26M |
| YoY Change | -272.8% | 494.24% | -3666.69% |
| Depreciation, Depletion And Amortization | $33.77M | $35.10M | $37.00M |
| YoY Change | -11.38% | -9.77% | 1.65% |
| Cash From Operating Activities | $84.85M | $26.90M | $179.7M |
| YoY Change | 13.16% | -7.56% | 177.74% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$31.60M | -$47.10M | $1.900M |
| YoY Change | -17.49% | -7.65% | -105.38% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | $0.00 | $26.40M | $30.20M |
| YoY Change | -100.0% | 45.05% | 364.62% |
| Cash From Investing Activities | -$31.58M | -$20.70M | $32.10M |
| YoY Change | -23.48% | -36.89% | -211.46% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | |||
| YoY Change | |||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | -441.0K | -312.0M | -2.000M |
| YoY Change | -78.56% | 9076.47% | -4.76% |
| NET CHANGE | |||
| Cash From Operating Activities | 84.85M | 26.90M | 179.7M |
| Cash From Investing Activities | -31.58M | -20.70M | 32.10M |
| Cash From Financing Activities | -441.0K | -312.0M | -2.000M |
| Net Change In Cash | 52.82M | -305.8M | 209.8M |
| YoY Change | 66.88% | 4207.04% | 520.71% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $84.85M | $26.90M | $179.7M |
| Capital Expenditures | -$31.60M | -$47.10M | $1.900M |
| Free Cash Flow | $116.4M | $74.00M | $177.8M |
| YoY Change | 2.79% | -7.62% | 77.8% |
Facts In Submission
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Nature Of Operations
NatureOfOperations
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<p style="margin-bottom:10pt;margin-top:12pt;margin-left:1.73%;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:10pt;margin-top:10pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">W&T Offshore, Inc. and subsidiaries, referred to herein as “W&T,” “we,” “us,” “our,” or the “Company”, is an independent oil and natural gas producer with substantially all of its operations in the Gulf of Mexico. We are active in the exploration, development and acquisition of oil and natural gas properties. Our interest in fields, leases, structures and equipment are primarily owned by the parent company, W&T Offshore, Inc. (on a stand-alone basis, the “Parent Company”) and our 100% owned subsidiary, W & T Energy VI, LLC (“Energy VI”) and through our proportionately consolidated interest in Monza Energy, LLC (“Monza”), as described in more detail in Note 4. </p> | |
| CY2018 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
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<p style="margin-bottom:10pt;margin-top:0pt;margin-left:3.33%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Reclassification</p> <p style="margin-bottom:10pt;margin-top:10pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Certain reclassifications have been made to prior periods’ financial statements to conform to the current year presentation as follows: In the Consolidated Statements of Operations, interest income was reclassified from <font style="font-style:italic;">Other (income) expense, net</font> to <font style="font-style:italic;">Interest expense, net</font>, and amounts related to capitalized interest are included in the line <font style="font-style:italic;">Interest expense, net</font>. Neither of these reclassifications changed <font style="font-style:italic;">Net income (loss) before income tax expense (benefit)</font>. In the Consolidated Statements of Cash Flows, within the <font style="font-style:italic;">Net cash provided by operating activities</font> and the <font style="font-style:italic;">Net cash used in investing activities</font> sections, adjustments were made to certain line items, of which did not change the total amounts previously reported. These adjustments did not affect the Consolidated Balance Sheets.</p> | |
| CY2018 | us-gaap |
Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
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<p style="margin-bottom:10pt;margin-top:12pt;margin-left:1.73%;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:10pt;margin-top:10pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Our customers are primarily large integrated oil and natural gas companies, large financial institutions and large trading houses. The majority of our production is sold utilizing month-to-month contracts that are based on bid prices. 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 guarantees when considered necessary. </p> <p style="margin-bottom:10pt;margin-top:10pt;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 table identifies customers from whom we derived 10% or more of our 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;"> </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;"> </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;"> </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;">2018</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;"> </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;"> </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;">2017</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;"> </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;"> </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;">2016</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;"> </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:Tahoma;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: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:Tahoma;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:Tahoma;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:Tahoma;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%; 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:Tahoma;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: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:Tahoma;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:Tahoma;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:Tahoma;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%; 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:Tahoma;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: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:Tahoma;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:Tahoma;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </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;"> </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;">30</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;"> </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: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;">46</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;"> </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: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;">43</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;">BP Products North America</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: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;">20</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;"> </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;"> </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;"> </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;"> </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;">Vitol Inc.</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: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="#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;"> </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: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;">15</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;"> </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: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;">20</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> </table> <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%;"> </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></div> <p style="margin-bottom:10pt;margin-top:10pt;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> <p style="margin-bottom:10pt;margin-top:12pt;margin-left:1.73%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Accounts Receivables and Allowance for Bad Debts </p> <p style="margin-bottom:10pt;margin-top:10pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Our accounts receivables are recorded at their historical cost, less an allowance for doubtful accounts. The carrying value approximates fair value because of the short-term nature of such accounts. In addition to receivables from sales of our production to our customers, we also have receivables from joint interest owners on properties we operate. In certain arrangements, we have the ability to withhold future revenue disbursements to recover amounts due us from the joint interest partners. We have not had any significant problems collecting our receivables from our customers, but with the decline in commodity prices starting in 2015, several oil and gas companies have filed for bankruptcy where we have joint interest arrangements. We use the specific identification method of determining if an allowance for doubtful accounts is needed. The following table describes the balance and changes to the allowance for doubtful accounts:</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:61.66%; border-bottom:solid 0.75pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </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:9.66%; 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;">2018</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;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:3.16%; 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;"> </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:9.66%; 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;">2017</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;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:3.16%;"> <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;"> </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:9.66%; 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;">2016</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;"> </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:61.66%;"> <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;">Allowance for doubtful accounts, beginning of period</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;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-top:solid 0.75pt #000000;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;">9,114</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:3.16%;"> <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: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;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">7,602</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:3.16%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:9pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-top:solid 0.75pt #000000;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;">2,490</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> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:61.66%;"> <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;">Additional provisions for the year</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:8.66%;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;">1,233</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:3.16%;"> <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: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:8.66%;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;">1,512</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:3.16%;"> <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: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:8.66%;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;">5,112</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;width:61.66%; border-bottom:solid 0.75pt transparent;"> <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;">Uncollectable accounts written off</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-bottom: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;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-bottom:solid 0.75pt #000000;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;">(655</p></td> <td valign="bottom" bgcolor="#CFF0FC" 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;;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;width:3.16%; border-bottom:solid 0.75pt transparent;"> <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:1%; border-bottom: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;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-bottom:solid 0.75pt #000000;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;">—</p></td> <td valign="bottom" bgcolor="#CFF0FC" 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;;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;width:3.16%; border-bottom:solid 0.75pt transparent;"> <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:1%; border-bottom: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;"> </p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-bottom:solid 0.75pt #000000;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;">—</p></td> <td valign="bottom" bgcolor="#CFF0FC" 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;;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="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:61.66%; border-bottom:double 2.5pt transparent;"> <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;">Allowance for doubtful accounts, end of period</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #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;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">9,692</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:3.16%; border-bottom:double 2.5pt transparent;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;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;">9,114</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;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;width:3.16%; border-bottom:double 2.5pt transparent;"> <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:1%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #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;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:8.66%; border-top:solid 0.75pt #000000; border-bottom:double 2.5pt #000000;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;">7,602</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%; border-bottom:double 2.5pt transparent;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;"> </p></td> </tr> </table> <p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;"> </p></div> | |
| CY2018 | us-gaap |
Derivatives Reporting Of Derivative Activity
DerivativesReportingOfDerivativeActivity
|
<p style="margin-bottom:10pt;margin-top:12pt;margin-left:1.73%;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:10pt;margin-top:10pt;text-indent:3.33%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Our market risk exposure relates primarily to commodity prices. From time to time, we use various derivative instruments to manage our exposure to commodity price risk from sales of oil and natural gas. We do not enter into derivative instruments for speculative trading purposes. We entered into commodity derivatives contracts during 2018 and 2017, and as of December 31, 2018, we had open commodity derivative instruments. When we have outstanding borrowings on our revolving bank credit facility, we may use various derivative financial instruments to manage our exposure to interest rate risk from floating interest rates. During 2018 and 2017, we did not enter into any derivative instruments related to interest rates. </p> <p style="margin-bottom:10pt;margin-top:10pt;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. Changes in a derivative’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. Whenever we have entered into derivative contracts, we did not designate our derivatives instruments as hedging instruments, therefore, all changes in fair value are recognized in earnings. </p> | |
| CY2017Q4 | us-gaap |
Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
|
8102044000 | |
| CY2018Q4 | us-gaap |
Furniture And Fixtures Gross
FurnitureAndFixturesGross
|
20228000 | |
| CY2017Q4 | us-gaap |
Furniture And Fixtures Gross
FurnitureAndFixturesGross
|
21831000 | |
| CY2018Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
8190099000 | |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
8123875000 | |
| CY2018Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
7674678000 | |
| CY2017Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
7544859000 | |
| CY2018 | wti |
Present Value Discounted Percentage
PresentValueDiscountedPercentage
|
0.10 | |
| CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
9114000 | |
| CY2016Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
7602000 | |
| CY2015Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
2490000 | |
| CY2018 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
1233000 | |
| CY2017 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
1512000 | |
| CY2016 | us-gaap |
Provision For Doubtful Accounts
ProvisionForDoubtfulAccounts
|
5112000 | |
| CY2018 | us-gaap |
Allowance For Doubtful Accounts Receivable Write Offs
AllowanceForDoubtfulAccountsReceivableWriteOffs
|
655000 | |
| CY2018Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
9692000 | |
| CY2018Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
60687000 | |
| CY2018Q4 | us-gaap |
Prepaid Insurance
PrepaidInsurance
|
2987000 | |
| CY2017Q4 | us-gaap |
Prepaid Insurance
PrepaidInsurance
|
2401000 | |
| CY2018Q4 | wti |
Surety Bond Unamortized Premiums
SuretyBondUnamortizedPremiums
|
2210000 | |
| CY2017Q4 | wti |
Surety Bond Unamortized Premiums
SuretyBondUnamortizedPremiums
|
2676000 | |
| CY2018Q4 | us-gaap |
Prepaid Royalties
PrepaidRoyalties
|
8872000 | |
| CY2017Q4 | us-gaap |
Prepaid Royalties
PrepaidRoyalties
|
6456000 | |
| CY2018Q4 | wti |
Advances For Capital Expenditures
AdvancesForCapitalExpenditures
|
745000 | |
| CY2018Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
905000 | |
| CY2017Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
1886000 | |
| CY2018Q4 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
|
0 | |
| CY2017Q4 | us-gaap |
Capitalized Costs Of Unproved Properties Excluded From Amortization Cumulative
CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
|
0 | |
| CY2018Q4 | us-gaap |
Oil And Gas Property Full Cost Method Gross
OilAndGasPropertyFullCostMethodGross
|
8169871000 | |
| CY2018 | us-gaap |
Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
|
0 | |
| CY2017 | us-gaap |
Impairment Of Oil And Gas Properties
ImpairmentOfOilAndGasProperties
|
0 | |
| CY2018 | wti |
Proved Undeveloped Reserves Classification Period To Be Drilled
ProvedUndevelopedReservesClassificationPeriodToBeDrilled
|
P5Y | |
| CY2018Q4 | us-gaap |
Escrow Deposit
EscrowDeposit
|
49500000 | |
| CY2017Q4 | us-gaap |
Escrow Deposit
EscrowDeposit
|
49500000 | |
| CY2018Q4 | wti |
Appeal Bond Deposit Assets Noncurrent
AppealBondDepositAssetsNoncurrent
|
6925000 | |
| CY2017Q4 | wti |
Appeal Bond Deposit Assets Noncurrent
AppealBondDepositAssetsNoncurrent
|
6925000 | |
| CY2018Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
4773000 | |
| CY2017Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
330000 | |
| CY2018Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
2586000 | |
| CY2017Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
2511000 | |
| CY2018Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
21275000 | |
| CY2018Q4 | wti |
Unamortized Brokerage Fee
UnamortizedBrokerageFee
|
2277000 | |
| CY2018Q4 | wti |
Proportional Consolidation Adjustment In Other Asset
ProportionalConsolidationAdjustmentInOtherAsset
|
3275000 | |
| CY2018Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
936000 | |
| CY2017Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
1127000 | |
| CY2018Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
12385000 | |
| CY2017Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
4200000 | |
| CY2018Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
2320000 | |
| CY2017Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
2454000 | |
| CY2018Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
10817000 | |
| CY2017Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
7366000 | |
| CY2018Q4 | us-gaap |
Settlement Liabilities Current
SettlementLiabilitiesCurrent
|
3673000 | |
| CY2017Q4 | us-gaap |
Settlement Liabilities Current
SettlementLiabilitiesCurrent
|
3480000 | |
| CY2018Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
416000 | |
| CY2017Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
430000 | |
| CY2017Q4 | us-gaap |
Loss Contingency Accrual At Carrying Value
LossContingencyAccrualAtCarryingValue
|
49500000 | |
| CY2018Q4 | us-gaap |
Liability For Uncertain Tax Positions Noncurrent
LiabilityForUncertainTaxPositionsNoncurrent
|
11523000 | |
| CY2017Q4 | us-gaap |
Liability For Uncertain Tax Positions Noncurrent
LiabilityForUncertainTaxPositionsNoncurrent
|
11015000 | |
| CY2018Q4 | wti |
Dispute Related To Royalty Deductions Noncurrent
DisputeRelatedToRoyaltyDeductionsNoncurrent
|
4787000 | |
| CY2018Q4 | wti |
Dispute Related To Royalty In Kind Noncurrent
DisputeRelatedToRoyaltyInKindNoncurrent
|
2135000 | |
| CY2017Q4 | wti |
Dispute Related To Royalty In Kind Noncurrent
DisputeRelatedToRoyaltyInKindNoncurrent
|
914000 | |
| CY2018Q4 | us-gaap |
Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
|
745000 | |
| CY2017Q4 | us-gaap |
Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
|
5437000 | |
| CY2017 | wti |
Number Of Platforms Damaged
NumberOfPlatformsDamaged
|
1 | |
| CY2017 | us-gaap |
Loss Contingency Damages Sought Value
LossContingencyDamagesSoughtValue
|
1100000 | |
| CY2018Q4 | us-gaap |
Debt Instrument Face Amount
DebtInstrumentFaceAmount
|
646000000 | |
| CY2017Q4 | us-gaap |
Debt Instrument Face Amount
DebtInstrumentFaceAmount
|
889790000 | |
| CY2018Q4 | wti |
Payment In Kind Notes Interest And Other Payable
PaymentInKindNotesInterestAndOtherPayable
|
-12465000 | |
| CY2017Q4 | wti |
Payment In Kind Notes Interest And Other Payable
PaymentInKindNotesInterestAndOtherPayable
|
102262000 | |
| CY2017Q4 | wti |
Payment In Interest Current
PaymentInInterestCurrent
|
22925000 | |
| CY2018Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
633535000 | |
| CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
992052000 | |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
0 | |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
0 | |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
0 | |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
21000000 | |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
625000000 | |
| CY2018Q4 | wti |
Investment In Second Lien Term Loan
InvestmentInSecondLienTermLoan
|
5000000 | |
| CY2017Q4 | us-gaap |
Derivative Number Of Instruments Held
DerivativeNumberOfInstrumentsHeld
|
0 | |
| CY2017Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
300446000 | |
| CY2016Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
334438000 | |
| CY2018 | wti |
Asset Retirement Obligations Liabilities Incurredand Assumed Through Acquisition
AssetRetirementObligationsLiabilitiesIncurredandAssumedThroughAcquisition
|
4286000 | |
| CY2017 | wti |
Asset Retirement Obligations Liabilities Incurredand Assumed Through Acquisition
AssetRetirementObligationsLiabilitiesIncurredandAssumedThroughAcquisition
|
163000 | |
| CY2018 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
15591000 | |
| CY2017 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
21082000 | |
| CY2018Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
310137000 | |
| 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 | |
| CY2017 | us-gaap |
Proceeds From Insurance Settlement Operating Activities
ProceedsFromInsuranceSettlementOperatingActivities
|
31700000 | |
| CY2017 | wti |
Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent
|
1.578 | |
| CY2016 | us-gaap |
Proceeds From Insurance Settlement Operating Activities
ProceedsFromInsuranceSettlementOperatingActivities
|
10200000 | |
| us-gaap |
Insurance Recoveries
InsuranceRecoveries
|
203100000 | ||
| CY2018Q4 | us-gaap |
Accrued Insurance Current And Noncurrent
AccruedInsuranceCurrentAndNoncurrent
|
0 | |
| CY2018 | wti |
Share Based Compensation Performance Awards Grant Performance Period
ShareBasedCompensationPerformanceAwardsGrantPerformancePeriod
|
P10Y | |
| CY2018 | wti |
Annual Incentive Award Payment Period
AnnualIncentiveAwardPaymentPeriod
|
P90D | |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
|
11852592 | |
| CY2018 | wti |
Share Based Compensation Paid In Shares And Cash
ShareBasedCompensationPaidInSharesAndCash
|
3540000 | |
| CY2017 | wti |
Share Based Compensation Paid In Shares And Cash
ShareBasedCompensationPaidInSharesAndCash
|
8065000 | |
| CY2016 | wti |
Share Based Compensation Paid In Shares And Cash
ShareBasedCompensationPaidInSharesAndCash
|
11013000 | |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
3855000 | |
| CY2018 | wti |
Incentive Compensation Charged To Operating Income Loss
IncentiveCompensationChargedToOperatingIncomeLoss
|
16722000 | |
| CY2017 | wti |
Incentive Compensation Charged To Operating Income Loss
IncentiveCompensationChargedToOperatingIncomeLoss
|
15198000 | |
| CY2016 | wti |
Incentive Compensation Charged To Operating Income Loss
IncentiveCompensationChargedToOperatingIncomeLoss
|
11013000 | |
| CY2018 | us-gaap |
Defined Contribution Plan Employer Matching Contribution Percent Of Match
DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
|
1.00 | |
| CY2018 | us-gaap |
Defined Contribution Plan Maximum Annual Contributions Per Employee Percent
DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
|
0.06 | |
| CY2018 | us-gaap |
Deferred Compensation Arrangement With Individual Requisite Service Period1
DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1
|
P5Y | |
| CY2018 | us-gaap |
Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage
DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage
|
0.20 | |
| CY2018 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
2000000 | |
| CY2017 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
1400000 | |
| CY2016 | us-gaap |
Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
|
400000 | |
| CY2018 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
35000 | |
| CY2017 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
-12786000 | |
| CY2016 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
-71768000 | |
| CY2018 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
52366000 | |
| CY2017 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
23490000 | |
| CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-102339000 | |
| CY2018 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
457000 | |
| CY2017 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
664000 | |
| CY2016 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
4920000 | |
| CY2018 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
560000 | |
| CY2017 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
63000 | |
| CY2016 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
-755000 | |
| CY2017 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Restructuring Charges
IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges
|
18000 | |
| CY2016 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Restructuring Charges
IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges
|
1463000 | |
| CY2018 | wti |
Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount
|
487000 | |
| CY2017 | wti |
Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount
|
105933000 | |
| CY2017 | wti |
Income Tax Reconciliation Gain On Exchange Of Debt
IncomeTaxReconciliationGainOnExchangeOfDebt
|
-24981000 | |
| CY2018 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-53980000 | |
| CY2017 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-118643000 | |
| CY2016 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
52915000 | |
| CY2018 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
645000 | |
| CY2017 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
887000 | |
| CY2016 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
420000 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.350 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
0.002 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
0.010 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-0.017 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.002 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.001 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.002 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges
|
-0.005 | |
| CY2018 | wti |
Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent
|
0.002 | |
| CY2017 | wti |
Effective Income Tax Rate Reconciliation Gain On Exchange Of Debt Percentage
EffectiveIncomeTaxRateReconciliationGainOnExchangeOfDebtPercentage
|
-0.372 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.217 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-1.768 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.181 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.003 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.014 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.001 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.002 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
-0.187 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.148 | |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
|
11139000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Investment In Noncontrolled Affiliates
DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
|
6875000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
812000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
695000 | |
| CY2018Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
18826000 | |
| CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
695000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Property Plant And Equipment
DeferredTaxAssetsPropertyPlantAndEquipment
|
3934000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Property Plant And Equipment
DeferredTaxAssetsPropertyPlantAndEquipment
|
18234000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
|
65811000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
|
63755000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards Domestic
DeferredTaxAssetsOperatingLossCarryforwardsDomestic
|
10039000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards Domestic
DeferredTaxAssetsOperatingLossCarryforwardsDomestic
|
18988000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
|
7133000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
|
7126000 | |
| CY2018Q4 | wti |
Deferred Tax Assets Interest Expense Carryover
DeferredTaxAssetsInterestExpenseCarryover
|
41814000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Restructuring Charges
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges
|
55807000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
583000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
1335000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
117764000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
171547000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
7091000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
6805000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
18641000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
503000 | |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
185000 | |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
192000 | |
| CY2016 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
310000 | |
| CY2017 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
185000 | |
| CY2018 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
138000 | |
| CY2016 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
7796000 | |
| CY2017 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
11906000 | |
| CY2018 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
11126000 | |
| CY2018Q4 | wti |
Operating Loss Interest Limitation Carryover
OperatingLossInterestLimitationCarryover
|
197049000 | |
| CY2017 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-118600000 | |
| CY2018 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-53800000 | |
| CY2017Q4 | us-gaap |
Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
|
-105900000 | |
| CY2017Q4 | wti |
Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit
TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit
|
500000 | |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
9482000 | |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
9482000 | |
| CY2018 | us-gaap |
Participating Securities Distributed And Undistributed Earnings Loss Basic
ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic
|
9727000 | |
| CY2017 | us-gaap |
Participating Securities Distributed And Undistributed Earnings Loss Basic
ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic
|
3244000 | |
| CY2018 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
239100000 | |
| CY2017 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
76438000 | |
| CY2016 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-249020000 | |
| CY2018 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
139002000 | |
| CY2017 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
137617000 | |
| CY2016 | us-gaap |
Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
|
95644000 | |
| CY2016 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
5269000 | |
| CY2018 | us-gaap |
Interest Paid Net
InterestPaidNet
|
61501000 | |
| CY2017 | us-gaap |
Interest Paid Net
InterestPaidNet
|
65873000 | |
| CY2016 | us-gaap |
Interest Paid Net
InterestPaidNet
|
96501000 | |
| CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Share Based Liabilities Paid
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid
|
1130000 | |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Share Based Liabilities Paid
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid
|
874000 | |
| CY2018 | us-gaap |
Proceeds From Interest Received
ProceedsFromInterestReceived
|
2385000 | |
| CY2017 | us-gaap |
Proceeds From Interest Received
ProceedsFromInterestReceived
|
315000 | |
| CY2016 | us-gaap |
Proceeds From Interest Received
ProceedsFromInterestReceived
|
7889000 | |
| CY2018 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
18575000 | |
| CY2017 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
33003000 | |
| CY2016 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
9129000 | |
| CY2018 | us-gaap |
Asset Retirement Obligation Period Increase Decrease
AssetRetirementObligationPeriodIncreaseDecrease
|
19877000 | |
| CY2017 | us-gaap |
Asset Retirement Obligation Period Increase Decrease
AssetRetirementObligationPeriodIncreaseDecrease
|
21245000 | |
| CY2016 | us-gaap |
Asset Retirement Obligation Period Increase Decrease
AssetRetirementObligationPeriodIncreaseDecrease
|
10865000 | |
| CY2016 | us-gaap |
Stock Issued1
StockIssued1
|
106366000 | |
| CY2018 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
0 | |
| CY2017 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
0 | |
| CY2016 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
520000 | |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
1500000 | |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
1600000 | |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
1600000 | |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
1600000 | |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
0 | |
| CY2018 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
3400000 | |
| CY2017 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
3000000 | |
| CY2016 | us-gaap |
Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
|
3200000 | |
| CY2018Q4 | us-gaap |
Deposit Liabilities Collateral Issued Financial Instruments
DepositLiabilitiesCollateralIssuedFinancialInstruments
|
6900000 | |
| CY2018 | wti |
Expense Relating To Surety Bonds
ExpenseRelatingToSuretyBonds
|
5900000 | |
| CY2017 | wti |
Expense Relating To Surety Bonds
ExpenseRelatingToSuretyBonds
|
5700000 | |
| CY2016 | wti |
Expense Relating To Surety Bonds
ExpenseRelatingToSuretyBonds
|
4300000 | |
| CY2014Q4 | wti |
Number Of Deepwater Wells Abandoned
NumberOfDeepwaterWellsAbandoned
|
3 | |
| CY2010Q4 | wti |
Additional Royalty Due To Disallowed Deductions
AdditionalRoyaltyDueToDisallowedDeductions
|
4700000 | |
| CY2017Q1 | wti |
Additional Royalty Due To Disallowed Deductions
AdditionalRoyaltyDueToDisallowedDeductions
|
4700000 | |
| CY2017Q1 | wti |
Bonds Posted To Appeal Ibla Decision
BondsPostedToAppealIBLADecision
|
7200000 | |
| CY2017Q1 | wti |
Collateral For Bonds Posted Related To Appeal With Ibla
CollateralForBondsPostedRelatedToAppealWithIBLA
|
6900000 | |
| CY2018 | wti |
Royalties In Kind Liability Reserve
RoyaltiesInKindLiabilityReserve
|
2100000 | |
| CY2018 | wti |
Royalty Payment Processing Revised Period
RoyaltyPaymentProcessingRevisedPeriod
|
P84M | |
| CY2018 | wti |
Incremental Payments For Royalties Related To Unbundling
IncrementalPaymentsForRoyaltiesRelatedToUnbundling
|
600000 | |
| CY2016 | wti |
Incremental Payments For Royalties Related To Unbundling
IncrementalPaymentsForRoyaltiesRelatedToUnbundling
|
500000 | |
| CY2017 | wti |
Incremental Payments For Royalties Related To Unbundling
IncrementalPaymentsForRoyaltiesRelatedToUnbundling
|
1600000 | |
| CY2018 | wti |
Outstanding Obligation To Secure Financial Assurances Upon Rescindment
OutstandingObligationToSecureFinancialAssurancesUponRescindment
|
0 | |
| CY2018Q1 | us-gaap |
Revenues
Revenues
|
134213000 | |
| CY2018Q2 | us-gaap |
Revenues
Revenues
|
149612000 | |
| CY2018Q3 | us-gaap |
Revenues
Revenues
|
153459000 | |
| CY2018Q4 | us-gaap |
Revenues
Revenues
|
143422000 | |
| CY2018Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
38739000 | |
| CY2018Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
48467000 | |
| CY2018Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
57147000 | |
| CY2018Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
102674000 | |
| CY2018Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
27640000 | |
| CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
36083000 | |
| CY2018Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
46260000 | |
| CY2018Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
138844000 | |
| CY2018Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.19 | |
| CY2018Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.25 | |
| CY2018Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.32 | |
| CY2018Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.96 | |
| CY2017Q1 | us-gaap |
Revenues
Revenues
|
124393000 | |
| CY2017Q2 | us-gaap |
Revenues
Revenues
|
123323000 | |
| CY2017Q3 | us-gaap |
Revenues
Revenues
|
110281000 | |
| CY2017Q4 | us-gaap |
Revenues
Revenues
|
129099000 | |
| CY2017Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
28196000 | |
| CY2017Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
32888000 | |
| CY2017Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
15700000 | |
| CY2017Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
33166000 | |
| CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
24299000 | |
| CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
33315000 | |
| CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1297000 | |
| CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
23365000 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.17 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.23 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
-0.01 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
|
0.16 | |
| CY2018Q4 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
47100000 | |
| CY2017Q1 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
7800000 | |
| CY2018Q4 | us-gaap |
Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
|
59700000 | |
| CY2018Q4 | us-gaap |
Capitalized Costs Mineral Interests In Proved Properties
CapitalizedCostsMineralInterestsInProvedProperties
|
8169900000 | |
| CY2017Q4 | us-gaap |
Capitalized Costs Mineral Interests In Proved Properties
CapitalizedCostsMineralInterestsInProvedProperties
|
8102000000 | |
| CY2016Q4 | us-gaap |
Capitalized Costs Mineral Interests In Proved Properties
CapitalizedCostsMineralInterestsInProvedProperties
|
7932500000 | |
| CY2018Q4 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
7665100000 | |
| CY2017Q4 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
7525000000 | |
| CY2016Q4 | us-gaap |
Capitalized Costs Accumulated Depreciation Depletion Amortization And Valuation Allowance For Relating To Oil And Gas Producing Activities
CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
|
7387800000 | |
| CY2018Q4 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
|
504800000 | |
| CY2017Q4 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
|
577000000 | |
| CY2016Q4 | us-gaap |
Capitalized Costs Oil And Gas Producing Activities Net
CapitalizedCostsOilAndGasProducingActivitiesNet
|
544700000 | |
| CY2018 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
24100000 | |
| CY2017 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
1100000 | |
| CY2016 | us-gaap |
Costs Incurred Acquisition Of Oil And Gas Properties With Proved Reserves
CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
|
1300000 | |
| CY2018 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
49900000 | |
| CY2017 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
62000000 | |
| CY2016 | us-gaap |
Costs Incurred Exploration Costs
CostsIncurredExplorationCosts
|
4800000 | |
| CY2018 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
56200000 | |
| CY2017 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
92500000 | |
| CY2016 | us-gaap |
Costs Incurred Development Costs
CostsIncurredDevelopmentCosts
|
56900000 | |
| CY2016 | us-gaap |
Costs Incurred Acquisition Of Unproved Oil And Gas Properties
CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
|
500000 | |
| CY2018 | us-gaap |
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
|
130200000 | |
| CY2017 | us-gaap |
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
|
155600000 | |
| CY2016 | us-gaap |
Costs Incurred Oil And Gas Property Acquisition Exploration And Development Activities
CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities
|
63500000 | |
| CY2018 | wti |
Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions
AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions
|
20300000 | |
| CY2017 | wti |
Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions
AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions
|
21300000 | |
| CY2016 | wti |
Asset Retirement Obligation Period Increase Decrease Due To Acquisitions Incurred And Revisions
AssetRetirementObligationPeriodIncreaseDecreaseDueToAcquisitionsIncurredAndRevisions
|
10800000 | |
| CY2018Q4 | wti |
Seismic Costs
SeismicCosts
|
1500000 | |
| CY2017Q4 | wti |
Seismic Costs
SeismicCosts
|
500000 | |
| CY2016Q4 | wti |
Seismic Costs
SeismicCosts
|
200000 | |
| CY2018 | wti |
Geological And Geophysical Costs
GeologicalAndGeophysicalCosts
|
5400000 | |
| CY2017 | wti |
Geological And Geophysical Costs
GeologicalAndGeophysicalCosts
|
4200000 | |
| CY2016 | wti |
Geological And Geophysical Costs
GeologicalAndGeophysicalCosts
|
4100000 | |
| CY2018 | wti |
Depreciation Depletion Amortization And Accretion Per Boe
DepreciationDepletionAmortizationAndAccretionPerBoe
|
11.24 | |
| CY2017 | wti |
Depreciation Depletion Amortization And Accretion Per Boe
DepreciationDepletionAmortizationAndAccretionPerBoe
|
10.68 | |
| CY2016 | wti |
Depreciation Depletion Amortization And Accretion Per Boe
DepreciationDepletionAmortizationAndAccretionPerBoe
|
13.77 | |
| CY2018 | wti |
Percentage Of Non Operated Proved Developed Non Producing Reserves
PercentageOfNonOperatedProvedDevelopedNonProducingReserves
|
0.13 | |
| CY2016 | srt |
Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy
ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
|
14.2 | |
| CY2017 | srt |
Proved Developed And Undeveloped Reserve Revision Of Previous Estimate Energy
ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy
|
6.2 | |
| CY2018Q4 | wti |
Proved Undeveloped Reserve Net Energy Converted Outside Of Five Years
ProvedUndevelopedReserveNetEnergyConvertedOutsideOfFiveYears
|
1.8 | |
| CY2018 | wti |
Percentage Of Proved Undeveloped Reserves Expected To Be Developed
PercentageOfProvedUndevelopedReservesExpectedToBeDeveloped
|
0.11 | |
| CY2018Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
3500900000 | |
| CY2017Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
2328800000 | |
| CY2016Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows
|
1818400000 | |
| CY2018Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
958500000 | |
| CY2017Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
813800000 | |
| CY2016Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts
|
691500000 | |
| CY2018Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
272400000 | |
| CY2017Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
157400000 | |
| CY2016Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Development Costs
FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts
|
141100000 | |
| CY2018Q4 | wti |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Dismantlement And Abandonment Cost
FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDismantlementAndAbandonmentCost
|
355900000 | |
| CY2017Q4 | wti |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Dismantlement And Abandonment Cost
FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDismantlementAndAbandonmentCost
|
361900000 | |
| CY2016Q4 | wti |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Future Dismantlement And Abandonment Cost
FutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDismantlementAndAbandonmentCost
|
427700000 | |
| CY2018Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
293900000 | |
| CY2017Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
74800000 | |
| CY2018Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
1620200000 | |
| CY2017Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
920900000 | |
| CY2016Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows
|
558100000 | |
| CY2018Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
553200000 | |
| CY2017Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
180300000 | |
| CY2016Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows
FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows
|
79800000 | |
| CY2018Q4 | srt |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
1067000000 | |
| CY2017Q4 | srt |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
740600000 | |
| CY2016Q4 | srt |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
478300000 | |
| CY2016Q4 | srt |
Future Net Cash Flows Relating To Proved Oil And Gas Reserves Income Tax Expense
FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense
|
0 | |
| CY2015Q4 | srt |
Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves
StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves
|
613900000 | |
| CY2018 | srt |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
398100000 | |
| CY2017 | srt |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
315300000 | |
| CY2016 | srt |
Sales And Transfers Of Oil And Gas Produced Net Of Production Costs
SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts
|
218600000 | |
| CY2018 | srt |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
571500000 | |
| CY2017 | srt |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
288000000 | |
| CY2016 | srt |
Net Increase Decrease In Sales And Transfer Prices And Production Costs
NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts
|
-275200000 | |
| CY2018 | srt |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
53600000 | |
| CY2017 | srt |
Extensions Discoveries Additions And Improved Recovery Less Related Costs
ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts
|
119300000 | |
| CY2018 | srt |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
-114700000 | |
| CY2017 | srt |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
-38900000 | |
| CY2016 | srt |
Increase Decrease In Estimated Future Development Costs
IncreaseDecreaseInEstimatedFutureDevelopmentCosts
|
-32500000 | |
| CY2018 | srt |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
48400000 | |
| CY2017 | srt |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
102800000 | |
| CY2016 | srt |
Previously Estimated Development Costs Incurred
PreviouslyEstimatedDevelopmentCostsIncurred
|
114500000 | |
| CY2018 | srt |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
307600000 | |
| CY2017 | srt |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
106400000 | |
| CY2016 | srt |
Revisions Of Previous Quantity Estimates
RevisionsOfPreviousQuantityEstimates
|
190100000 | |
| CY2018 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount
StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount
|
50500000 | |
| CY2017 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount
StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount
|
30200000 | |
| CY2016 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Relating To Proved Oil And Gas Reserves Accretion Of Discount
StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount
|
52600000 | |
| CY2018 | srt |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
-133400000 | |
| CY2017 | srt |
Increase Decrease In Future Income Tax Expense Estimates On Future Cash Flows Related To Proved Oil And Gas Reserves
IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves
|
-54700000 | |
| CY2018 | srt |
Increase Due To Purchases Of Minerals In Place
IncreaseDueToPurchasesOfMineralsInPlace
|
27800000 | |
| CY2018 | srt |
Decrease Due To Sales Of Minerals In Place
DecreaseDueToSalesOfMineralsInPlace
|
54100000 | |
| CY2018 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
|
-32700000 | |
| CY2017 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
|
24500000 | |
| CY2016 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Other
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesOther
|
33500000 | |
| CY2018 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
|
326400000 | |
| CY2017 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
|
262300000 | |
| CY2016 | srt |
Standardized Measure Of Discounted Future Net Cash Flow Of Proved Oil And Gas Reserves Period Increase Decrease
StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease
|
-135600000 |
