Okla. Stat. tit. 20 § 96
Jury sessions of the district court may be held at any time upon order of a chief judge or of the presiding judge of the judicial administrative district. A session for the hearing and disposition of motions and demurrers shall be held in each county at least once every thirty (30) days, and any motion or demurrer that has been on file for at least five (5) days shall be placed on the docket. The date or dates of regular sessions for the hearing of motions and demurrers shall be fixed by any of the judges of the district court unless the district judges of the district court judicial district shall prescribe otherwise, provided that a judge may hear any matter in any case assigned to him more frequently than provided herein.
Okla. Stat. tit. 20, § 96