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FAIR VALUE, HIERARCHY (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Sep. 30, 2015
--- | --- | ---
Assets |  |  |
Derivative assets |  | $ 35,191 | $ 45,087
Liabilities |  |  |
Derivative liabilities |  | 86,332 | 38,330
Fair Value, Measurements, Recurring |  |  |
Assets |  |  |
Available for sale equity securities - energy industry |  | 55,789 | 59,475
Other | [1] | 35,516 | 1,572
Total assets at fair value |  | 126,496 | 106,134
Liabilities |  |  |
Total liabilities at fair value |  | 86,332 | 38,330
Fair Value, Measurements, Recurring | Physical commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 10,216 | 6,572
Liabilities |  |  |
Derivative liabilities |  | 14,026 | 9,281
Fair Value, Measurements, Recurring | Financial commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 24,974 | 38,515
Liabilities |  |  |
Derivative liabilities |  | 49,201 | 24,821
Fair Value, Measurements, Recurring | Foreign currency contracts |  |  |
Assets |  |  |
Derivative assets |  | 1 |
Liabilities |  |  |
Derivative liabilities |  | 32 |
Fair Value, Measurements, Recurring | Interest rate contracts |  |  |
Liabilities |  |  |
Derivative liabilities |  | 23,073 | 4,228
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Assets |  |  |
Available for sale equity securities - energy industry |  | 55,789 | 59,475
Other | [1] | 35,516 | 1,572
Total assets at fair value |  | 116,279 | 99,562
Liabilities |  |  |
Total liabilities at fair value |  | 49,201 | 24,821
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Physical commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 0 | 0
Liabilities |  |  |
Derivative liabilities |  | 0 | 0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Financial commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 24,974 | 38,515
Liabilities |  |  |
Derivative liabilities |  | 49,201 | 24,821
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign currency contracts |  |  |
Assets |  |  |
Derivative assets |  | 0 |
Liabilities |  |  |
Derivative liabilities |  | 0 |
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate contracts |  |  |
Liabilities |  |  |
Derivative liabilities |  | 0 | 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Assets |  |  |
Available for sale equity securities - energy industry |  | 0 | 0
Other | [1] | 0 | 0
Total assets at fair value |  | 10,217 | 6,572
Liabilities |  |  |
Total liabilities at fair value |  | 37,131 | 13,509
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Physical commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 10,216 | 6,572
Liabilities |  |  |
Derivative liabilities |  | 14,026 | 9,281
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Financial commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 0 | 0
Liabilities |  |  |
Derivative liabilities |  | 0 | 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency contracts |  |  |
Assets |  |  |
Derivative assets |  | 1 |
Liabilities |  |  |
Derivative liabilities |  | 32 |
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Interest rate contracts |  |  |
Liabilities |  |  |
Derivative liabilities |  | 23,073 | 4,228
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Assets |  |  |
Available for sale equity securities - energy industry |  | 0 | 0
Other | [1] | 0 | 0
Total assets at fair value |  | 0 | 0
Liabilities |  |  |
Total liabilities at fair value |  | 0 | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Physical commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 0 | 0
Liabilities |  |  |
Derivative liabilities |  | 0 | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Financial commodity contracts |  |  |
Assets |  |  |
Derivative assets |  | 0 | 0
Liabilities |  |  |
Derivative liabilities |  | 0 | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Foreign currency contracts |  |  |
Assets |  |  |
Derivative assets |  | 0 |
Liabilities |  |  |
Derivative liabilities |  | 0 |
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Interest rate contracts |  |  |
Liabilities |  |  |
Derivative liabilities |  | $ 0 | $ 0
[1] | Includes various money market funds.

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