Okla. Stat. tit. 67, § 67-3: Restoration of lost probate records

In case of the destruction by fire or otherwise of the records,

or any part thereof, of any district court, the judge of such court

may proceed upon his own motion, or upon application in writing of

any party in interest, to restore the records, papers and

proceedings of his court relating to the estate of deceased persons,

including recorded wills and wills probated or filed for probate in

said court; and for the purpose of restoring said records, wills,

papers or proceedings, or any part thereof, may cause citations to

be issued to any and all parties to be designated by him, and may

compel the attendance in court of any witnesses whose testimony may

be necessary to the establishment of any such record or part

thereof, and the production of any and all written or documentary

evidence which may be by him deemed necessary in determining the

true import and effect of the original record, will, paper or other

document belonging to the files of said court; and may make such

orders and decrees establishing said original record, will, paper,

document or proceeding, or the substance thereof, as to him shall

seem just and proper; and such judge may make all such rules and

regulations governing the said proceedings for the restoration of

the record, will, paper, document or proceeding pertaining to said

court, as in his judgment will best secure the rights and protect

the interests of all parties concerned.