Coal Trading Assets and Liabilities, Net, Fair Value Disclosure

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Commodity swaps and options fair value disclosure.

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Location differentials Level 3 unobservable input as a percentage of overall valuation.

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Percentage Of Trading Portfolio Expiration.

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Percentage of trading portfolio expiration year four.

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Percentage of trading portfolio expiration, year one.

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Percentage of trading portfolio expiration, year three.

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Percentage of trading portfolio expiration, year two.

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Physical commodity purchase sale contracts fair value disclosure.

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Quality Adjustment Level 3 Unobservable Input as Percentage of Overall Valuation

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Fair value of all asset derivatives designated as cash flow hedging instruments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

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The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

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Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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