Okla. Stat. tit. 62 § 436b
In addition to the purposes for which the resale property fund of any county may be expended under the restrictions, terms and conditions set forth in 68 Oklahoma Statutes 1951 Section 432(L), said resale property fund shall be available between July first and June fifteenth of any year for all rebates allowed under authority of statute by the board of county commissioners or the tax roll corrections board of the county upon taxes found to have been illegally or erroneously collected, or on the sale of certificate or issue of deed on lands or lots on which no tax was due or as to which the sale thereof is, or was, illegal for any reason. Provided, however, before the owner and holder of such invalid deed may be reimbursed as aforesaid, he shall first be required to attach to his claim on which he shall set forth all allegations of fact in support of the invalidity of the deed, a disclaimer, quit claim, or other instrument necessary to disavow or divest himself of all right, title, and interest in the property described in such invalid deed or certificate and no fees shall be required for the recording and indexing thereof. Where such deed was executed by the chairman of the board of county commissioners and based upon an invalid resale tax deed issued by the county treasurer, upon execution of such disclaimer or quit claim by such purchaser, or if no deed has been issued and the county retain title under invalid resale tax deed issued by the county treasurer, then the board of county commissioners, so finding, is hereby authorized to execute its resolution or order of disclaimer as to fee title, with the reasons therefor, and a certificate or copy of such resolution or order of disclaimer shall be executed by the chairman of such board, attested by the signature and seal of the county clerk, and the same shall be recorded and indexed, as other instruments relating to realty, without fee therefor. The determination of whether such property has been erroneously sold for taxes to such purchaser or to the county or subsequently by the board of county commissioners, shall be made by the board of county commissioners upon proper application of the aggrieved owner if sustained by the record.
Okla. Stat. tit. 62, § 436b