Okla. Stat. tit. 20 § 644
Whenever any court is heretofore or may hereafter be created and thereafter abandoned, or where any county is heretofore or hereafter abandoned, all civil or criminal cases, which may be filed in such created courts or in the courts of such created counties, shall be transferred to the court of said county wherein such court town is located, or, if the county is created and thereafter abandoned, the cases filed, and the dockets and records of said court are hereby transferred, and a new county created and thereafter abandoned, all cases filed in the district court or in the county court, shall be hereafter transferred into courts of such counties having jurisdiction over the territory formerly under the jurisdiction of such county and courts and such judge, of the newly organized county, or the county in which the territory of such courts was located, shall have complete jurisdiction over all cases therein pending and dispose of same as if said cases were originally filed in such court and dispose of things as fully and completely as if such court had original jurisdiction of said matter. Whenever a court is created with jurisdiction concurrent to that of a district court and such newly created court is later abandoned, abolished, or declared invalid, all civil or criminal cases filed in such created court shall be transferred to the district court of the district wherein such created court exercised concurrent jurisdiction. The transfer of said cases shall be accomplished forthwith under the direction of the district judge by the court clerk of the county in which said created court is later abandoned, abolished, or declared invalid, and said transfer to the district court shall have the same effect as if said cases had been originally filed in the said district court and no additional court costs shall be assessed for such transfer or docketing in the district court. Said district court shall be the successor court for all purposes to the created court which was later abandoned, abolished, or declared invalid.
Okla. Stat. tit. 20, § 644