(In thousands)

Fair Value Measurements at Reporting Date Using:

Derivatives Not Designated as Hedging

Quoted Prices in
Active Markets for
Identical Assets

Significant Other
Observable Inputs

Significant
Unobservable
Inputs

Instruments Under FASB ASC 815-10

Balance Sheet Location

Total

Level 1

Level 2

Level 3

Asset Derivatives at September 30, 2012

Commodity contracts

Fair asset and fair liability value of derivative instruments

$

15,100

$

1,749

$

13,351

$

—

Commodity contract assets at September 30, 2012

$

15,100

$

1,749

$

13,351

$

—

Liability Derivatives at September 30, 2012

Commodity contracts

Fair liability and fair asset value of derivative instruments

$

(10,549

)

$

(1,898

)

$

(8,651

)

$

—

Commodity contract liabilities at September 30, 2012

$

(10,549

)

$

(1,898

)

$

(8,651

)

$

—

Asset Derivatives at September 30, 2011

Commodity contracts

Fair asset and fair liability value of derivative instruments

$

41,531

$

550

$

40,981

$

—

Commodity contracts

Long-term derivative assets included in the deferred charges and other assets, net balance

257

171

86

—

Commodity contract assets at September 30, 2011

$

41,788

$

721

$

41,067

$

—

Liability Derivatives at September 30, 2011

Commodity contracts

Fair liability and fair asset value of derivative instruments

$

(41,179

)

$

(602

)

$

(40,577

)

$

—

Commodity contracts

Long-term derivative liabilities netted with the deferred charges and other assets, net balance

(96

)

(25

)

(71

)

—

Commodity contract liabilities at September 30, 2011

$

(41,275

)

$

(627

)

$

(40,648

)

$

—