Okla. Stat. tit. 60, § 60-1604.1: Methods of creating trust

A trust may be created by:

1. Transfer of property to another person as trustee during the

settlor's lifetime or by will or other disposition taking effect

upon the settlor's death;

2. Declaration by the owner of property that the owner holds

identifiable property as trustee; or

3. Exercise of a power of appointment in favor of a trustee.