Okla. Stat. tit. 60, § 1609.5

A. The limitations on personal liability of a trustee as set forth in subsection H of Section 175.57 of Title 60 of the Oklahoma Statutes and in subsection H of Section 42 of this act shall apply. B. A claim based on a contract entered into by a trustee in the trustee's fiduciary capacity, on an obligation arising from ownership or control of trust property, or on a tort committed in the course of administering a trust, may be asserted in a judicial proceeding against the trustee in the trustee's fiduciary capacity, whether or not the trustee is personally liable for the claim.