In the case of oil and gas leases where royalty payments are not received by the Secretary on the date that such payments are due, or are less than the amount due, the Secretary shall charge interest on such late payments or underpayments at the rate applicable under section 6621 of title 26. In the case of an underpayment or partial payment, interest shall be computed and charged only on the amount of the deficiency and not on the total amount due.
Any payment made by the Secretary to a State under section 191 of this title and any other payment made by the Secretary to a State from any oil or gas royalty received by the Secretary which is not paid on the date required under section 191 of this title shall include an interest charge computed at the rate applicable under section 6621 of title 26.
Notwithstanding any other provision of law, no State will be assessed for any interest or penalties found to be due against the Secretary for failure to comply with the Emergency Petroleum Allocation Act of 1973 [15 U.S.C. 751 et seq.] or regulation of the Secretary of Energy thereunder concerning crude oil certification or pricing with respect to crude oil taken by the Secretary in kind as royalty. Any State share of an overcharge, resulting from such failure to comply, shall be assessed against moneys found to be due and owing to such State as a result of audits of royalty accounts for transactions which took place prior to January 12, 1983, except that if after the completion of such audits, sufficient moneys have not been found due and owing to any State, the State shall be assessed the balance of that State’s share of the overcharge.
Interest shall be charged under this section only for the number of days a payment is late.
A lessee or its designee may make a payment for the approximate amount of royalties (hereinafter in this subsection “estimated payment”) that would otherwise be due for such lease by the date royalties are due for that lease. When an estimated payment is made, actual royalties are payable at the end of the month following the month in which the estimated payment is made. If the estimated payment was less than the amount of actual royalties due, interest is owed on the underpaid amount. If the lessee or its designee makes a payment for such actual royalties, the lessee or its designee may apply the estimated payment to future royalties. Any estimated payment may be adjusted, recouped, or reinstated at any time by the lessee or its designee.
The Secretary shall issue all determinations of allocations of production for units and communitization agreements within 120 days of a request for determination. If the Secretary fails to issue a determination within such 120-day period, the Secretary shall waive interest due on obligations subject to the determination until the end of the month following the month in which the determination is made.