Okla. Stat. tit. 31, § 31-16: Revocation of preservation trust cannot be compelled -

Restrictions on transferability.

No court or other judicial body shall have the authority to

compel a person holding a power of revocation or amendment over a

preservation trust to exercise the power of revocation or amendment.

The provisions of this act shall be considered restrictions on the

transferability of the grantor’s beneficial interest in the

preservation trust that is enforceable under applicable

nonbankruptcy law within the meaning of Section 541(c)(2) of the

United States Bankruptcy Code or any successor provisions.