This excerpt taken from the MRO 10-K filed Feb 29, 2008.
SECTION 10.01. Procedure for Making Payments.
All payments to be made under this Agreement shall be made in immediately available funds.
SECTION 10.02. Tax Consequences of Payments.
(a) For all tax purposes and notwithstanding any other provision of this Agreement, to the extent permitted by applicable law, the parties hereto shall treat any payment made pursuant to this Agreement (other than an interest payment) as a capital contribution or dividend distribution, as the case may be, immediately prior to the Distribution Date and, accordingly, as not includible in the taxable income of the recipient.
(b) If, as a result of a Final Determination, it is determined that the receipt or accrual of any payment made under this Agreement results in any increased tax liability or reduction of any Tax Attribute of the recipient of such payment, the payor shall pay to the recipient an amount (the After-Tax Amount) equal to the sum of (i) any increase in the Taxes of the recipient as a result of receiving the payment from the payor (which shall itself be grossed up to take into account such payment, if applicable) and (ii) any interest or Penalty attributable to such increased tax liability or to the reduction of such Tax Attribute. The payor shall not be required to pay the After-Tax Amount to the extent (1) the payor does not receive a deduction for such payment, or (2) the recipient obtains a deduction corresponding to the payment.
SECTION 10.03. Interest.
Payments made pursuant to this Agreement that are not made within the period prescribed in this Agreement, or if no period is prescribed within 15 Calendar Days after demand for payment is made (the Payment Period), shall bear interest for the period from and including the date immediately following the last Business Day of the Payment Period through and including the date of payment at a rate equal to the rate for underpayments under Code Section 6621(a)(2), without regard to the large corporate underpayment rate provided in Code Section 6621(c). Such interest shall be calculated on the basis of the actual number of days for which due.