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Derivatives (Schedule Of Outstanding Derivatives Entered Into Hedge Inventory Or Fixed Price Purchase Commitments) (Details) (Not Designated As Hedging Instrument [Member], USD $) | Dec. 31, 2011
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Selling Contracts [Member] | Crude Oil Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ 96.16
Contract volumes (1,000 bbls) | $ 169
Selling Contracts [Member] | Heating Oil Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per gal | $ 2.86
Contract volumes (1,000 bbls) | 178
Selling Contracts [Member] | RBOB Gasoline Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per gal | $ 2.66
Contract volumes (1,000 bbls) | 15
Selling Contracts [Member] | Fuel Oil Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ 93.73
Contract volumes (1,000 bbls) | 489
Selling Contracts [Member] | Crude Oil Options [Member] |
Derivative [Line Items] |
Weighted average contract price per mmBtu | $ 2.05
Contract volumes (1,000 bbls) | 355
Selling Contracts [Member] | Heating Oil Options [Member] |
Derivative [Line Items] |
Weighted average contract price per mmBtu | $ 0.09
Contract volumes (1,000 bbls) | 30
Buying Contracts [Member] | Crude Oil Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl | $ 98.83
Contract volumes (1,000 bbls) | 90
Buying Contracts [Member] | Heating Oil Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per gal | $ 2.83
Contract volumes (1,000 bbls) | 60
Buying Contracts [Member] | RBOB Gasoline Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per gal |
Contract volumes (1,000 bbls) |
Buying Contracts [Member] | Fuel Oil Futures [Member] |
Derivative [Line Items] |
Weighted average contract price per bbl |
Contract volumes (1,000 bbls) |
Buying Contracts [Member] | Crude Oil Options [Member] |
Derivative [Line Items] |
Weighted average contract price per mmBtu | $ 0.56
Contract volumes (1,000 bbls) | 75
Buying Contracts [Member] | Heating Oil Options [Member] |
Derivative [Line Items] |
Weighted average contract price per mmBtu |
Contract volumes (1,000 bbls) |

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- Details
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- Definition The price per barrel of the notional amount of the derivative contract expressed in nonmonetary units. For example, the price per barrel specified in a fuel oil forward purchase contract. + References No definition available. + Details
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- Definition The price per gallon of the notional amount of the derivative contract expressed in nonmonetary units. For example, the price per gallon specified in a fuel forward purchase contract. + References No definition available. + Details
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- Definition The price per unit of the notional amount of the derivative contract expressed in nonmonetary units. For example, the price per barrel specified in a fuel oil forward purchase contract. + References No definition available. + Details
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- Definition Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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