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Derivatives (Outstanding Derivatives Entered Into To Hedge Inventory or Fixed Price Purchase Commitments) (Details) bbl in Thousands | 12 Months Ended
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Dec. 31, 2016 bbl $ / bbl $ / units
Sell (Short) [Member] | Designated as Hedging Instrument [Member] | Futures [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 1,295
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 49.86
Sell (Short) [Member] | Not Designated As Hedging Instrument [Member] | Futures [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 1,413
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 50.61
Sell (Short) [Member] | Not Designated As Hedging Instrument [Member] | Futures [Member] | Diesel Futures [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 13
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 1.69
Sell (Short) [Member] | Not Designated As Hedging Instrument [Member] | Futures [Member] | Fuel Oil Futures [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 190
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 45.91
Sell (Short) [Member] | Not Designated As Hedging Instrument [Member] | Swap [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 0
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 0.00
Sell (Short) [Member] | Not Designated As Hedging Instrument [Member] | Options [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 35
Weighted average premium received (in dollars per barrel) | $ / bbl | 1.57
Buy (Long) [Member] | Designated as Hedging Instrument [Member] | Futures [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 0
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 0.00
Buy (Long) [Member] | Not Designated As Hedging Instrument [Member] | Futures [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 1,349
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 51.08
Buy (Long) [Member] | Not Designated As Hedging Instrument [Member] | Futures [Member] | Diesel Futures [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 0
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 0.00
Buy (Long) [Member] | Not Designated As Hedging Instrument [Member] | Futures [Member] | Fuel Oil Futures [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 20
Weighted average contract price per bbl (in dolllars per barrel) | $ / bbl | 47.62
Buy (Long) [Member] | Not Designated As Hedging Instrument [Member] | Swap [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 0
Weighted average contract price per bbl (in dolllars per barrel) | $ / units | 0.00
Buy (Long) [Member] | Not Designated As Hedging Instrument [Member] | Options [Member] | Crude Oil [Member] |
Derivative [Line Items] |
Contract volumes (1,000 bbls) | 5
Weighted average premium received (in dollars per barrel) | $ / bbl | 0.23

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract but not the derivative contract itself. + References No definition available. + Details
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