Okla. Stat. tit. 58, § 58-714

Proceedings for probate of wills of two or more deceased persons

may be joined and united in one proceeding, and proceedings for

administration of estates of two or more deceased persons who died

intestate may be joined and united in one proceeding. Proceedings

for probate of wills of one or more deceased persons and proceedings

for the administration of estates of one or more deceased persons

who died intestate may be joined and united in one proceeding.

Where the estate or estates or some part thereof left by one or more

of such deceased persons, has been or is to be received from another

of such deceased persons, immediately or remotely, either by will or

intestate succession, and no probate or administration proceedings

have been had or commenced upon the estate of any of such deceased

persons, and/or where two or more deceased persons died seized of

undivided interests in property, real or personal, as tenants in

common or otherwise, and no probate or administration proceedings

have been had or commenced on the estate of either or any of them,

and one or more of the heirs, devisees or legatees of such deceased

persons are the same, the court may grant letters testamentary

and/or letters of administration, as the case may be, upon such

estates in any county where venue would be proper for any of the

estates so joined and they may be administered in one proceeding.

In all cases herein mentioned the court granting such letters has

jurisdiction of each of the proceedings so united. Notice required

to be published by this title including but not limited to notice to

determine heirs, notice to creditors, or notice of hearing on

petition for final settlement, shall be published in the county

where the action is pending and the county of the residence of each

decedent if a resident of this state at death. Any such proceeding

before the effective date of this act shall be deemed to be in

compliance with applicable venue statutes.