v2.4.0.8

Put and Call Option Contracts (Parenthetical) (Detail)	Sep. 30, 2013
Minimum | Unleaded Fuel
Derivative [Line Items]
Option contracts settlement date	2013-10	[1]
Minimum | Diesel
Derivative [Line Items]
Option contracts settlement date	2013-10	[1]
Maximum | Unleaded Fuel
Derivative [Line Items]
Option contracts settlement date	2015-03	[1]
Maximum | Diesel
Derivative [Line Items]
Option contracts settlement date	2015-03	[1]
[1] The settlement of the put and call option contracts is based upon the New York Mercantile Exchange’s New York Harbor Reformulated Gasoline Blendstock for Oxygen Blending and the U.S. Department of Energy’s weekly retail on-highway diesel fuel price for the month.

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Derivative Settlement Month and Year

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