Okla. Stat. tit. 68, § 68-2846: Undervalued and underassessed property - Reassessment

A. Whenever real or personal property has in any year, through

false representations or concealments willfully and fraudulently

made by the owner or agent in listing the same for assessment, been

grossly undervalued and has escaped for that year just and proper

taxation, the county assessor or the State Board of Equalization,

whose duty it is to assess such class of property shall, at any time

within two (2) years from the date of such original undervaluation,

cause such property to be entered on the assessment roll and tax

books for the year or years so undervalued.

B. After reasonable notice to the party affected, in order that

he may be heard, the county assessor or State Board of Equalization

shall reassess such undervalued property and cause same to be

extended against such property on the tax list or rolls for the

current year, with all arrearage of taxes thus properly accruing

against it, including interest thereon at the rate of six percent

(6%) per annum from the time such tax should have become delinquent.

C. As to such property so grossly undervalued in assessment no

contract shall be made with anyone by either the State Board of

Equalization, or the board of county commissioners, to pay anyone a

commission or in any way causing same to be reassessed; but it shall

be the duty of the State Board of Equalization, with the assistance

of the Attorney General and the county assessor, with the assistance

of the district attorney, to make and cause such reassessment to be

made.