(a) On request, you must make available sales, volume, and transportation data for production you sold, purchased, or obtained from the field or area. You must make this data available to ONRR, Indian representatives, or other authorized persons.
(b) You must retain all data relevant to the determination of royalty value. Document retention and recordkeeping requirements are found at §§ 1207.5, 1212.50, and 1212.51 of this chapter. The ONRR, Indian representatives, or other authorized persons may review and audit such data you possess, and ONRR will direct you to use a different value if it determines that the reported value is inconsistent with the requirements of this subpart or the lease.