Okla. Stat. tit. 68 § 3113
The owner of any real estate, or any person having a legal or equitable interest therein, may redeem the same at any time before the execution of a deed of conveyance therefor by the county treasurer by paying to the county treasurer the sum which was originally delinquent including interest at the lawful rate as provided in Section 2913 of this title and such additional costs as may have accrued; provided, that minors or incapacitated or partially incapacitated persons may redeem from taxes any real property belonging to them within one (1) year after the expiration of such disability, with interest and penalty at not more than ten percent (10%) per annum. The term incapacitated as used in this section relates to mental incapacitation only, physical disability is not covered under this term or this section.
Okla. Stat. tit. 68, § 3113