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Amount of debt instrument exchanged for new 9% Senior Secured Second Lien Notes due 2021.

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Debt Instrument, Percentage of Principal Amount Available To Be Redeemed

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Minimum permitted consolidated EBITDAX to Consolidated Interest charges ratio.

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Interest in entities which guarantee our debt issuances, expressed as a percentage

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Interest Rate Margins on Bank Credit Facility

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Maximum incurrence of junior lien debt permitted as of the balance sheet date.

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Remaining junior lien debt allowed to be incurred under the Bank Credit Facility restrictive covenants.

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Maximum permitted Senior Secured Debt to consolidated EBITDAX ratio.

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Total Debt to EBITDA requirement for the 9% Senior Secured Second Lien Notes due 2021

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Fair value amount of debt instrument that was repurchased.

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Face (par) amount of the original debt instrument that was repurchased.

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Gross amount of debt extinguished.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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The effective interest rate during the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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