Okla. Stat. tit. 12, § 12-1481: Occupying claimant entitled to pay for improvements and

taxes.

In all cases any occupying claimant being in quiet possession of

any lands or tenements for which such person can show a plain and

connected title in law or equity, derived from the records of some

public office, or being in quiet possession of and holding the same

by deed, devise, descent, contract, bond, or agreement from and

under any person claiming title as aforesaid, derived from the

records of some public office, or by deed duly authenticated and

recorded, or being in quiet possession of, and holding the same

under sale on execution or order of sale against any person claiming

title as aforesaid, derived from the records of some public office,

or by deed, duly authenticated and recorded; or being in possession

of and holding any land under any sale for taxes authorized by the

laws of this state, or any person who has made a bona fide

settlement and improvement which he still occupies upon any of the

Indian lands lying in this state, or any lands held in trust for the

benefit of any Indian tribe at the date of such settlement, or which

may have heretofore been Indian lands, and which were vacant and

unoccupied at the date of such settlement, and where the records of

the county show no title or claim of any person to said lands at the

time of such settlement; or any person in quiet possession of any

land claiming title thereto, and holding the same under a sale and

conveyance made by executors, administrators or guardians, or by any

other person in pursuance of any order of court or decree in

chancery where lands are or have been directed to be sold and the

purchaser thereof has obtained title to and possession of the same

without any fraud or collusion on his part, shall not be evicted or

thrown out of possession by any person or persons who shall set up

and prove an adverse and better title to said lands until said

occupying claimant or his heirs, shall be paid the full value of all

lasting and valuable improvements made on such lands by such

occupying claimant, or by the person under whom he may hold the same

and all taxes paid thereon by such claimant with interest, as

provided for the redemption of lands sold for taxes, previous to

receiving actual notice by the commencement of suit on such adverse

claim by which eviction may be effected.