Okla. Stat. tit. 60, § 60-161: Property in which trustee may invest - Judgment and care

required.

Unless otherwise authorized, directed or restricted by order of

court or by the will, trust agreement, or other document which is

the source of the trust, the trustee may invest trust funds in any

property, real, personal or mixed, in which an individual may invest

the individual's own funds. In making investments, the trustee

shall comply with the provisions of the Oklahoma Uniform Prudent

Investor Act. The provisions of this section shall not be construed

to authorize a trustee to buy or sell property and investments from

or to the trustee personally or to commingle trust funds with the

individual funds of the trustee.